alloys

Summary

Summary: A mixture of metallic elements or compounds with other metallic or metalloid elements in varying proportions.

Top Publications

  1. ncbi An overview of nickel-titanium alloys used in dentistry
    S A Thompson
    Department of Adult Dental Health, University of Wales College of Medicine, Cardiff, UK
    Int Endod J 33:297-310. 2000
  2. ncbi Alloys of platinum and early transition metals as oxygen reduction electrocatalysts
    J Greeley
    Center for Atomic Scale Materials Design, Department of Physics, Technical University of Denmark, Lyngby, Denmark
    Nat Chem 1:552-6. 2009
  3. ncbi Magnesium and its alloys as orthopedic biomaterials: a review
    Mark P Staiger
    Department of Mechanical Engineering, University of Canterbury, Private Bag 4800, Christchurch, New Zealand
    Biomaterials 27:1728-34. 2006
  4. ncbi Biocompatibility and biodegradability of Mg-Sr alloys: the formation of Sr-substituted hydroxyapatite
    M Bornapour
    Light Metals and Advanced Magnesium Materials, Mining and Materials Engineering, McGill University, Montreal, QC H3A 2B2, Canada
    Acta Biomater 9:5319-30. 2013
  5. ncbi In vivo corrosion of four magnesium alloys and the associated bone response
    F Witte
    Department of Orthopaedic Surgery, Hannover Medical School, Anna von Borries Str 1 7, 30625 Hannover, Germany
    Biomaterials 26:3557-63. 2005
  6. ncbi In vitro corrosion and biocompatibility of binary magnesium alloys
    Xuenan Gu
    State Key Laboratory for Turbulence and Complex System and Department of Advanced Materials and Nanotechnology, College of Engineering, Peking University, Beijing 100871, China
    Biomaterials 30:484-98. 2009
  7. ncbi Nanostructural hierarchy increases the strength of aluminium alloys
    Peter V Liddicoat
    Australian Centre for Microscopy and Microanalysis and ARC Centre of Excellence for Design in Light Metals, The University of Sydney, Sydney, New South Wales 2006, Australia
    Nat Commun 1:63. 2010
  8. ncbi Temperature variations at nano-scale level in phase transformed nanocrystalline NiTi shape memory alloys adjacent to graphene layers
    Abbas Amini
    Institute for Frontier Materials, Deakin University, Waurn Ponds, Geelong, VIC 3217, Australia
    Nanoscale 5:6479-84. 2013
  9. ncbi In vivo corrosion, tumor outcome, and microarray gene expression for two types of muscle-implanted tungsten alloys
    B E Schuster
    U S Army Research Laboratory, Weapons and Materials Research Directorate, B434 Mulberry Road, Aberdeen Proving Ground, MD 21005 5609, USA
    Toxicol Appl Pharmacol 265:128-38. 2012
  10. ncbi Magnesium alloys for temporary implants in osteosynthesis: in vivo studies of their degradation and interaction with bone
    Tanja Kraus
    Department of Pediatric Orthopedics, Medical University Graz, 8036 Graz, Austria
    Acta Biomater 8:1230-8. 2012

Detail Information

Publications326 found, 100 shown here

  1. ncbi An overview of nickel-titanium alloys used in dentistry
    S A Thompson
    Department of Adult Dental Health, University of Wales College of Medicine, Cardiff, UK
    Int Endod J 33:297-310. 2000
    ..Nitinol alloys have greater strength and a lower modulus of elasticity compared with stainless steel alloys...
  2. ncbi Alloys of platinum and early transition metals as oxygen reduction electrocatalysts
    J Greeley
    Center for Atomic Scale Materials Design, Department of Physics, Technical University of Denmark, Lyngby, Denmark
    Nat Chem 1:552-6. 2009
    ..They were identified using density functional theory calculations as being the most stable Pt- and Pd-based binary alloys with ORR activity likely to be better than Pt...
  3. ncbi Magnesium and its alloys as orthopedic biomaterials: a review
    Mark P Staiger
    Department of Mechanical Engineering, University of Canterbury, Private Bag 4800, Christchurch, New Zealand
    Biomaterials 27:1728-34. 2006
    ..This review explores the properties, biological performance, challenges and future directions of magnesium-based biomaterials...
  4. ncbi Biocompatibility and biodegradability of Mg-Sr alloys: the formation of Sr-substituted hydroxyapatite
    M Bornapour
    Light Metals and Advanced Magnesium Materials, Mining and Materials Engineering, McGill University, Montreal, QC H3A 2B2, Canada
    Acta Biomater 9:5319-30. 2013
    ..Here we investigated the corrosion rate in simulated body fluid (SBF) of a series of Mg-Sr alloys, with Sr in the range of 0.3-2.5%, and found that the Mg-0.5 Sr alloy showed the slowest corrosion rate...
  5. ncbi In vivo corrosion of four magnesium alloys and the associated bone response
    F Witte
    Department of Orthopaedic Surgery, Hannover Medical School, Anna von Borries Str 1 7, 30625 Hannover, Germany
    Biomaterials 26:3557-63. 2005
    Degrading metal alloys are a new class of implant materials suitable for bone surgery...
  6. ncbi In vitro corrosion and biocompatibility of binary magnesium alloys
    Xuenan Gu
    State Key Laboratory for Turbulence and Complex System and Department of Advanced Materials and Nanotechnology, College of Engineering, Peking University, Beijing 100871, China
    Biomaterials 30:484-98. 2009
    As bioabsorbable materials, magnesium alloys are expected to be totally degraded in the body and their biocorrosion products not deleterious to the surrounding tissues...
  7. ncbi Nanostructural hierarchy increases the strength of aluminium alloys
    Peter V Liddicoat
    Australian Centre for Microscopy and Microanalysis and ARC Centre of Excellence for Design in Light Metals, The University of Sydney, Sydney, New South Wales 2006, Australia
    Nat Commun 1:63. 2010
    Increasing the strength of metallic alloys while maintaining formability is an interesting challenge for enabling new generations of lightweight structures and technologies...
  8. ncbi Temperature variations at nano-scale level in phase transformed nanocrystalline NiTi shape memory alloys adjacent to graphene layers
    Abbas Amini
    Institute for Frontier Materials, Deakin University, Waurn Ponds, Geelong, VIC 3217, Australia
    Nanoscale 5:6479-84. 2013
    ..the temperature at the nano-scale level during the solid-state phase transition phenomenon in NiTi shape memory alloys. Isothermal data was used as a reference to determine the temperature change at different loading rates...
  9. ncbi In vivo corrosion, tumor outcome, and microarray gene expression for two types of muscle-implanted tungsten alloys
    B E Schuster
    U S Army Research Laboratory, Weapons and Materials Research Directorate, B434 Mulberry Road, Aberdeen Proving Ground, MD 21005 5609, USA
    Toxicol Appl Pharmacol 265:128-38. 2012
    Tungsten alloys are composed of tungsten microparticles embedded in a solid matrix of transition metals such as nickel, cobalt, or iron...
  10. ncbi Magnesium alloys for temporary implants in osteosynthesis: in vivo studies of their degradation and interaction with bone
    Tanja Kraus
    Department of Pediatric Orthopedics, Medical University Graz, 8036 Graz, Austria
    Acta Biomater 8:1230-8. 2012
    ..Two different magnesium alloys - one fast degrading (ZX50) and one slowly degrading (WZ21) - were used for evaluating the bone response in 32 ..
  11. ncbi Balloon angioplasty versus implantation of nitinol stents in the superficial femoral artery
    Martin Schillinger
    Department of Angiology, Medical University of Vienna, Vienna General Hospital, Vienna, Austria
    N Engl J Med 354:1879-88. 2006
    ..We evaluated whether primary implantation of a self-expanding nitinol (nickel-titanium) stent yielded anatomical and clinical benefits superior to those afforded by percutaneous transluminal angioplasty with optional secondary stenting...
  12. ncbi Evaluation of the skin sensitizing potential of biodegradable magnesium alloys
    Frank Witte
    Department of Orthopaedic Surgery, Hannover Medical School, Hannover, Germany
    J Biomed Mater Res A 86:1041-7. 2008
    Corroding metals made of magnesium alloys represent a new class of degradable implants for musculoskeletal surgery. These implants may be associated with skin sensitizing reactions because of the release of metal ions...
  13. ncbi Endoscopic bilateral metal stent placement for advanced hilar cholangiocarcinoma: a pilot study of a newly designed Y stent
    Jung Hyun Lee
    Department of Internal Medicine, Pusan National University College of Medicine, Seo Gu, Busan, Korea
    Gastrointest Endosc 66:364-9. 2007
    ....
  14. ncbi The development of binary Mg-Ca alloys for use as biodegradable materials within bone
    Zijian Li
    LTCS, College of Engineering, Peking University, Beijing 100871, China
    Biomaterials 29:1329-44. 2008
    Binary Mg-Ca alloys with various Ca contents were fabricated under different working conditions...
  15. ncbi Evaluation of short-term effects of rare earth and other elements used in magnesium alloys on primary cells and cell lines
    Frank Feyerabend
    Department of Structural Research on Macromolecules, GKSS Research Centre, Institute for Materials Research, Max Planck Strasse 1, D 21502 Geesthacht, Germany
    Acta Biomater 6:1834-42. 2010
    Degradable magnesium alloys for biomedical application are on the verge of being used clinically. Rare earth elements (REEs) are used to improve the mechanical properties of the alloys, but in more or less undefined mixtures...
  16. ncbi Biomedical coatings on magnesium alloys - a review
    H Hornberger
    Institute of Biomaterials, Department of Materials Science and Engineering, Friedrich Alexander University Erlangen Nurnberg, Germany
    Acta Biomater 8:2442-55. 2012
    This review comprehensively covers research carried out in the field of degradable coatings on Mg and Mg alloys for biomedical applications...
  17. ncbi Management of distal malignant biliary obstruction with the ComVi stent, a new covered metallic stent
    Hiroyuki Isayama
    Department of Gastroenterology, Faculty of Medicine, University of Tokyo, Bunkyo ku, Tokyo, Japan
    Surg Endosc 24:131-7. 2010
    ..This covered metallic stent consists of an e-PTFE membrane sandwiched between two uncovered metallic stents with weak axial (straightening) force. Wire is exposed on both the inner and outer surfaces...
  18. ncbi Biomechanical testing and degradation analysis of MgCa0.8 alloy screws: a comparative in vivo study in rabbits
    Nina Erdmann
    Small Animal Clinic, University of Veterinary Medicine Hannover, Bünteweg 9, 30559 Hannover, Germany
    Acta Biomater 7:1421-8. 2011
    ..Since MgCa0.8 showed good biocompatibility and biomechanical properties, comparable with those of S316L in the first 2-3 weeks of implantation, its application as a biodegradable implant is conceivable...
  19. ncbi Palladium alloys for biomedical devices
    John C Wataha
    University of Washington School of Dentistry, Seattle, WA, USA
    Expert Rev Med Devices 7:489-501. 2010
    In the biomedical field, palladium has primarily been used as a component of alloys for dental prostheses...
  20. ncbi In vitro biocompatibility evaluation of surface-modified titanium alloys
    Cristina Treves
    Department of Biochemical Sciences of the University of Florence, Florence, Italy
    J Biomed Mater Res A 92:1623-34. 2010
    ..to evaluate the effects of a surface modification process on the biocompatibility of three vanadium-free titanium alloys with biomedical applications interest...
  21. ncbi Degradation of magnesium and its alloys: dependence on the composition of the synthetic biological media
    Wolf Dieter Mueller
    Labor für zahnärztliche Werkstoffkunde und Biomaterialforschung, Charite Universitatsmedizin, Abetamannshauserstrabetae 4 6, 14197 Berlin, Germany
    J Biomed Mater Res A 90:487-95. 2009
    Magnesium and its alloys are highly degradable metals that are potentially useful as biomaterials, especially in orthopaedic and cardiovascular applications. However, the in vivo corrosion has proved to be too high...
  22. ncbi Synthesis and characterization of Mg-Ca-Sr alloys for biodegradable orthopedic implant applications
    Ida S Berglund
    School of Technology and Health, KTH Royal Institute of Technology, Stockholm, Sweden
    J Biomed Mater Res B Appl Biomater 100:1524-34. 2012
    ..In this study, five alloys in the Mg-xCa-ySr system (x = 0.5-7.0 wt %; y = 0.5-3...
  23. ncbi Mechanical biocompatibilities of titanium alloys for biomedical applications
    Mitsuo Niinomi
    Department of Biomaterial Science, Institute for Materials Research, Tohoku University, 2 1 1, Katahira, Aoba ku, Sendai, 980 8577, Japan
    J Mech Behav Biomed Mater 1:30-42. 2008
    ..In this paper, the following are described with regard to biomedical applications of titanium alloys: the Young's modulus, wear properties, notch fatigue strength, fatigue behaviour on relation to ageing treatment, ..
  24. ncbi Electrodeposition of hydroxyapatite coating on Mg-4.0Zn-1.0Ca-0.6Zr alloy and in vitro evaluation of degradation, hemolysis, and cytotoxicity
    Ren Guo Guan
    School of Materials and Metallurgy, Northeastern University, Shenyang 110004, China
    J Biomed Mater Res A 100:999-1015. 2012
    ..Both the HA-coated and uncoated Mg-4.0Zn-1.0Ca-0.6Zr (wt %) alloy provided evidence of acceptable cytocompatibility for medical applications...
  25. ncbi Use of nitinol shape memory alloy staples (NiTi clips) after cervical discoidectomy: minimally invasive instrumentation and long-term results
    D Singh
    Department of Neurosurgery, G B Pant Hospital, New Delhi, India
    Minim Invasive Neurosurg 54:172-8. 2011
    ..This study was conducted to determine the efficacy and tolerability of shape memory alloys, especially NiTi (nickel titanium) clips in the stabilization of grafts following anterior cervical discoidectomy.
  26. ncbi Surface modifications of magnesium alloys for biomedical applications
    Jingxin Yang
    Advanced Materials Laboratory, Department of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China
    Ann Biomed Eng 39:1857-71. 2011
    In recent years, research on magnesium (Mg) alloys had increased significantly for hard tissue replacement and stent application due to their outstanding advantages...
  27. pmc Bone growth enhancement in vivo on press-fit titanium alloy implants with acid etched microtexture
    Henrik Daugaard
    Orthopaedic Research Laboratory, Department of Orthopaedic Surgery, Aarhus University Hospital, Norrebrogade 44, Building 1A, DK 8000 Aarhus C, Denmark
    J Biomed Mater Res A 87:434-40. 2008
    ..These results show that secondary roughening of titanium alloy implant surface by dual acid etching increases bone formation at the implant bone interface...
  28. ncbi Reactive oxygen species and oxidative DNA damage mediate the cytotoxicity of tungsten-nickel-cobalt alloys in vitro
    R M Harris
    School of Biosciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK
    Toxicol Appl Pharmacol 250:19-28. 2011
    Tungsten alloys (WA) have been introduced in an attempt to find safer alternatives to depleted uranium and lead munitions...
  29. ncbi In vitro and in vivo studies on a Mg-Sr binary alloy system developed as a new kind of biodegradable metal
    X N Gu
    State Key Laboratory for Turbulence and Complex System and Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing, People s Republic of China
    Acta Biomater 8:2360-74. 2012
    Magnesium alloys have shown potential as biodegradable metallic materials for orthopedic applications due to their degradability, resemblance to cortical bone and biocompatible degradation/corrosion products...
  30. ncbi Biomimetic modification of porous TiNbZr alloy scaffold for bone tissue engineering
    Xiaojian Wang
    Institute for Technology Research and Innovation, Deakin University, Geelong, Victoria, Australia
    Tissue Eng Part A 16:309-16. 2010
    Porous titanium (Ti) and Ti alloys are important scaffold materials for bone tissue engineering...
  31. ncbi Benign joining of ultrafine grained aerospace aluminum alloys using nanotechnology
    Rémi Longtin
    Empa, Swiss Federal Laboratories for Materials Science and Technology, Dubendorf, Switzerland
    Adv Mater 23:5812-6. 2011
    Ultrafine grained aluminum alloys have restricted applicability due to their limited thermal stability. Metalized 7475 alloys can be soldered and brazed at room temperature using nanotechnology...
  32. ncbi Smart materials applications for pediatric cardiovascular devices
    Daniel S Levi
    Division of Pediatric Cardiology, Mattel Children s Hospital, Los Angeles, CA 90095, USA
    Pediatr Res 63:552-8. 2008
    ..This review focuses on with the present and potential applications of shape memory alloys, piezoelectric materials, and the relatively newer class of materials called magnetostrictive and ferromagnetic ..
  33. ncbi Surface modification of magnesium alloys developed for bioabsorbable orthopedic implants: a general review
    Jiali Wang
    Center for Translational Medicine Research and Development, Institute of Biomedical and Health Engineering, Chinese Academy of Sciences, Shenzhen, China
    J Biomed Mater Res B Appl Biomater 100:1691-701. 2012
    As a bioabsorbable metal with mechanical properties close to bone, pure magnesium or its alloys have great potential to be developed as medical implants for clinical applications...
  34. ncbi Magnesium alloys as body implants: fracture mechanism under dynamic and static loadings in a physiological environment
    Lokesh Choudhary
    Department of Mechanical and Aerospace Engineering, Monash University, Melbourne, VIC 3800, Australia
    Acta Biomater 8:916-23. 2012
    ..a critique of the fundamental issues with an assessment of SCC of a rapidly corroding material such as magnesium alloys, and describes an investigation into the mechanism of SCC of a magnesium alloy in a physiological environment...
  35. ncbi Composition of corrosion layers on a magnesium rare-earth alloy in simulated body fluids
    Ralf Rettig
    Department of Materials Science, Institute for Corrosion and Surface Science, University of Erlangen Nuremberg, Erlangen, Germany
    J Biomed Mater Res A 88:359-69. 2009
    ..The work systematically explores the nature of surface layers on magnesium rare-earth alloys formed in complex SBFs, with the aim to elucidate the influence of specific electrolyte components on the ..
  36. ncbi Microstructure and mechanical properties of open-cellular biomaterials prototypes for total knee replacement implants fabricated by electron beam melting
    L E Murr
    Department of Metallurgical and Materials Engineering, The University of Texas at El Paso, El Paso, TX 79968, USA
    J Mech Behav Biomed Mater 4:1396-411. 2011
    ..1. A stress shielding design graph constructed from these data permitted mesh and foam implant prototypes to be fabricated for compatible bone stiffness...
  37. ncbi Balloon angioplasty versus stenting with nitinol stents in intermediate length superficial femoral artery lesions
    Petra Dick
    Department of Angiology, Medical University Vienna, Waehringer Guertel 18 20, A 1090 Vienna, Austria, Europe
    Catheter Cardiovasc Interv 74:1090-5. 2009
    ..We reinvestigated whether primary nitinol stenting is associated with a morphologic and clinical benefit when compared with percutaneous transluminal angioplasty with optional stenting (PTA) in intermediate-length lesions...
  38. ncbi Corrosion resistance, mechanical properties, corrosion fatigue strength and cytocompatibility of new Ti alloys without Al and V
    Y Okazaki
    Mechanical Engineering Laboratory, Agency of Industrial Science and Technology, Ministry of International Trade and Industry, Ibaraki, Japan
    Biomaterials 19:1197-215. 1998
    ..However, there was a sharp decrease for Ti-6%Al-4%V ELI alloy from 3 x 10(4) wear cycles as V ion was released during wear into the wear test solution since the pH of the Eagle's MEM increases with increasing wear cycles...
  39. ncbi Physical properties of endovascular stents: an experimental comparison
    S H Duda
    Department of Radiology, Eberhard Karls Universitat Tubingen, Germany
    J Vasc Interv Radiol 11:645-54. 2000
    ..MA.R.T., Symphony, and Wall-stent) of 4 cm length and 8 mm diameter were subjected to standardized physical tests...
  40. ncbi Single-center experience with the Neuroform stent for endovascular treatment of wide-necked intracranial aneurysms
    Eduardo Wajnberg
    Department of Radiology and Interventional Radiology, University of Brazil, 21941 913 Rio de Janeiro RJ, Brazil
    Surg Neurol 72:612-9. 2009
    ..The aim of this study was to reenforce the use of this stent for EVT of wide-necked cerebral aneurysms...
  41. ncbi Covered versus uncovered self-expandable nitinol stents in the palliative treatment of malignant distal biliary obstruction: results from a randomized, multicenter study
    Eric Kullman
    University Hospital, Linkoping, Sweden
    Gastrointest Endosc 72:915-23. 2010
    ..Covered biliary metal stents have been developed to prevent tumor ingrowth. Previous comparative studies are limited and often include few patients...
  42. pmc Biocorrosion of magnesium alloys: a new principle in cardiovascular implant technology?
    B Heublein
    Hannover Medical School, Leibniz Laboratory for Biotechnology and Artificial Organs, Hannover, Germany
    Heart 89:651-6. 2003
    To develop and test a new concept of the degradation kinetics of newly developed coronary stents consisting of magnesium alloys.
  43. ncbi In vivo corrosion behavior of Mg-Mn-Zn alloy for bone implant application
    Liping Xu
    Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
    J Biomed Mater Res A 83:703-11. 2007
    ....
  44. ncbi A new self-expanding nitinol stent (Enterprise) for the treatment of wide-necked intracranial aneurysms: initial clinical and angiographic results in 31 aneurysms
    Werner Weber
    Department of Radiology and Neuroradiology, Alfried Krupp Hospital, Essen, Germany
    Neuroradiology 49:555-61. 2007
    ..We report the results of a prospective clinical study using a new self-expanding nitinol stent (Enterprise) designed for the treatment of wide-necked intracranial aneurysms...
  45. ncbi Sustained benefit at 2 years of primary femoropopliteal stenting compared with balloon angioplasty with optional stenting
    Martin Schillinger
    Department of Angiology, Medical University, Vienna, Austria
    Circulation 115:2745-9. 2007
    ..We now report 2-year data on restenosis and clinical outcomes of these patients...
  46. ncbi Experiment study on fracture fixation with low rigidity titanium alloy: plate fixation of tibia fracture model in rabbit
    Nozomu Sumitomo
    Department of Materials Science and Engineering, Meijo University, 1 501 Shiogamaguchi, Tempaku ku, Nagoya 468 8502, Japan
    J Mater Sci Mater Med 19:1581-6. 2008
    ..It is confirmed that the elastic modulus of the bone plate will naturally influence bone tissue reaction to the bone plate fixation according to the Wolff's law of functional restoration...
  47. ncbi Biologic effects of implant debris
    Nadim J Hallab
    Department of Orthopaedic Surgery, Rush University Medical Center, Chicago, IL, USA
    Bull NYU Hosp Jt Dis 67:182-8. 2009
    ..New pathways of implant debris-induced inflammatory reactions continue to be discovered, such as the "danger signaling" inflammasome pathway, which provides new targets for pharmaceutical intervention and improved implant performance...
  48. ncbi Improved lumen visualization in metallic vascular implants by reducing RF artifacts
    Lambertus W Bartels
    Image Sciences Institute, Department of Radiology, University Medical Center Utrecht, The Netherlands
    Magn Reson Med 47:171-80. 2002
    ..The method was tested in vitro and in vivo in a pig model and allowed adequate depiction of the interior of a nitinol stent and that of a vena cava filter in contrast-enhanced MR angiograms. Magn Reson Med 47:171-180, 2002...
  49. ncbi The survival of Escherichia coli O157 on a range of metal surfaces
    S A Wilks
    Environmental Healthcare Unit, School of Biological Sciences, University of Southampton, Bassett Crescent East, Southampton, SO16 7PX, UK
    Int J Food Microbiol 105:445-54. 2005
    ..Other copper-containing alloys, such as copper nickels and copper silvers, have improved durability and anticorrosion properties and greatly ..
  50. pmc Treatment of malignant biliary obstruction with a PTFE-covered self-expandable nitinol stent
    Young Min Han
    Department of Radiology, Chonbuk National University Medical School and Hospital, Chonju, Korea
    Korean J Radiol 8:410-7. 2007
    ..We wanted to determine the technical and clinical efficacy of using a PTFE-covered self-expandable nitinol stent for the palliative treatment of malignant biliary obstruction...
  51. ncbi Primary patency of long-segment self-expanding nitinol stents in the femoropopliteal arteries
    Schila Sabeti
    Department of Angiology, University of Vienna, Medical School, A 1090 Vienna, Austria
    J Endovasc Ther 12:6-12. 2005
    ..To report a retrospective cohort study of nitinol stent implantation in patients at high risk for restenosis owing to long-segment (> or =10 cm) femoropopliteal disease...
  52. ncbi In vitro and in vivo corrosion measurements of magnesium alloys
    Frank Witte
    Department of Orthopaedic Surgery, Hannover Medical School, Anna von Borries Str 1 7, 30625 Hannover, Germany
    Biomaterials 27:1013-8. 2006
    The in vivo corrosion of magnesium alloys might provide a new mechanism which would allow degradable metal implants to be applied in musculo-skeletal surgery...
  53. ncbi Nanoporous pt-co alloy nanowires: fabrication, characterization, and electrocatalytic properties
    Lifeng Liu
    Max Planck Institute of Microstructure Physics, Weinberg 2, D06120 Halle, Germany
    Nano Lett 9:4352-8. 2009
    ....
  54. ncbi In vivo evaluation of biodegradable magnesium alloy bone implant in the first 6 months implantation
    Erlin Zhang
    School of Materials Science and Engineering, Jiamusi University, Jiamusi 154007, China
    J Biomed Mater Res A 90:882-93. 2009
    ..Blood examination has shown that the degradation of the magnesium implant caused little change to blood composition but no disorder to liver or kidneys...
  55. ncbi Plasma sprayed wollastonite/TiO2 composite coatings on titanium alloys
    Xuanyong Liu
    Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, People s Republic of China
    Biomaterials 23:4065-77. 2002
    ..It is enough to prove that the wollastonite and wollastonite/TiO2 composite coatings possess excellent cytocompatibility...
  56. ncbi Spark plasma sintering synthesis of porous nanocrystalline titanium alloys for biomedical applications
    R Nicula
    University of Rostock, Institute of Physics, August Bebel Str 55, 18055 Rostock, Germany
    Biomol Eng 24:564-7. 2007
    The reason for the extended use of titanium and its alloys as implant biomaterials stems from their lower elastic modulus, their superior biocompatibility and improved corrosion resistance compared to the more conventional stainless steel ..
  57. ncbi On the in vitro and in vivo degradation performance and biological response of new biodegradable Mg-Y-Zn alloys
    Anja C Hänzi
    Laboratory of Metal Physics and Technology, Department of Materials, ETH Zurich, 8093 Zurich, Switzerland
    Acta Biomater 6:1824-33. 2010
    A design strategy deployed in developing new biodegradable Mg-Y-Zn alloys is summarized and the key factors influencing their suitability for medical applications are described...
  58. ncbi Stent-assisted coil embolization of intracranial wide-necked aneurysms
    Young Jun Lee
    Department of Diagnostic Radiology, Pochon CHA University College of Medicine, Bundang CHA Hospital, 351 Yatap dong, Bundang gu, Seongnam si, Gyeonggi do 463 712, South Korea
    Neuroradiology 47:680-9. 2005
    ..To overcome the technical limitation in the coiling of wide-necked aneurysms, stent-assisted coil embolization may be a technically feasible and relatively safe method, even though longer periods of follow-up are required...
  59. ncbi A new self-expandable nitinol stent for the treatment of wide-neck aneurysms: initial clinical experience
    J P P Peluso
    Department of Radiology, St Elisabeth Ziekenhuis, Tilburg, The Netherlands
    AJNR Am J Neuroradiol 29:1405-8. 2008
    ..Stent systems for intracranial use are continuously improved. We report our initial experience using a new self-expanding easy-to-place nitinol stent (Enterprise) in the treatment of wide-neck intracranial aneurysms...
  60. pmc High-entropy alloys with high saturation magnetization, electrical resistivity, and malleability
    Yong Zhang
    State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing, China
    Sci Rep 3:1455. 2013
    ..Here we report a new class of FeCoNi(AlSi)x (0 ≤ x ≤ 0.8 in molar ratio) SMMs based on high-entropy alloys (HEAs)...
  61. ncbi [Bone histocompatibility of surface modified nitinol memory alloy by coating titanium-niobium alloy]
    Aiyuan Wang
    The Institute of Orthopaedics, General Hospital of PLA, Beijing, 100853, P R China
    Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi 24:797-800. 2010
    ..To evaluate the bone histocompatibility of NiTi shape memory alloy implants coated by TiNb in vivo...
  62. ncbi Effect of pH and temperature on orthodontic NiTi wires immersed in acidic fluoride solution
    Hyung Soo Ahn
    Department of Dental Materials, College of Dentistry and Medical Research Institute, Pusan National University, Pusan 602 739 Korea
    J Biomed Mater Res B Appl Biomater 79:7-15. 2006
    ..At pH 6, on the other hand, no such loss or release occurred regardless of temperature. At 5 degrees C solution, the surface exhibited minor corrosion regardless of pH value...
  63. ncbi In vitro degradation of four magnesium-zinc-strontium alloys and their cytocompatibility with human embryonic stem cells
    Aaron F Cipriano
    Department of Bioengineering, University of California, Riverside, CA 92521, USA
    J Mater Sci Mater Med 24:989-1003. 2013
    Magnesium alloys have attracted great interest for medical applications due to their unique biodegradable capability and desirable mechanical properties...
  64. ncbi Influence of aggressive ions on the degradation behavior of biomedical magnesium alloy in physiological environment
    Yunchang Xin
    Department of Physics and Materials Science, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
    Acta Biomater 4:2008-15. 2008
    ..Sulfate ions are also found to stimulate magnesium dissolution. These results improve our understanding on the degradation mechanism of surgical magnesium in the physiological environment...
  65. ncbi Elemental release from CoCr and NiCr alloys containing palladium
    Kelly A Beck
    Department of Prosthodontics, Marquette University School of Dentistry, Milwaukee, WI, USA
    J Prosthodont 21:88-93. 2012
    ..of casting alloy composition whereby palladium (∼approximately 25 wt%) is added to traditional base metal alloys such as CoCr and NiCr was recently introduced to the market...
  66. ncbi Facile synthesis of ZnS-CuInS2-alloyed nanocrystals for a color-tunable fluorchrome and photocatalyst
    Wenjin Zhang
    Key Laboratory for Advanced Materials, Department of Chemistry, East China University of Science and Technology, Shanghai 200237, China
    Inorg Chem 50:4065-72. 2011
    ..Furthermore, the obtained ZCIS/ZnS NCs show promising photocatalytic activity in the degradation of rhodamine B...
  67. ncbi Biofunctionalized anti-corrosive silane coatings for magnesium alloys
    Xiao Liu
    ARC Centre of Excellence for Electromaterials Science, University of Wollongong, Wollongong, Australia
    Acta Biomater 9:8671-7. 2013
    Biodegradable magnesium alloys are advantageous in various implant applications, as they reduce the risks associated with permanent metallic implants. However, a rapid corrosion rate is usually a hindrance in biomedical applications...
  68. ncbi Effect of the M(s) transformation temperature on the wear behaviour of NiTi shape memory alloys for articular prosthesis
    J Pena
    Dept Ciencia de Materiales e Ingeniería Metalúrgica, E T S E I B, Universidad Politécnica de Cataluña, Diagonal 647, 08028 Barcelona, Spain
    Biomed Mater Eng 15:289-93. 2005
    ..of this work has been the characterisation and correlation of the wear behaviour of the NiTi shape memory alloys in their different phases...
  69. ncbi Nickel-based (Ni-Cr and Ni-Cr-Be) alloys used in dental restorations may be a potential cause for immune-mediated hypersensitivity
    Yin Lu
    College of Biological and Environmental Engineering, Zhejiang Shuren University, Hangzhou 310015, Zhejiang Province, PR China
    Med Hypotheses 73:716-7. 2009
    ..Thus, it is necessary to determine the long-term biocompatibility properties of nickel-based alloy, reduce sensitization, and grasp the information of individual differences in the appearance of adverse reactions in further research...
  70. ncbi Bone-implant interface strength and osseointegration: Biodegradable magnesium alloy versus standard titanium control
    Christoph Castellani
    Department of Paediatric and Adolescent Surgery, Medical University of Graz, Austria
    Acta Biomater 7:432-40. 2011
    Previous research on the feasibility of using biodegradable magnesium alloys for bone implant applications mainly focused on biocompatibility and corrosion resistance...
  71. ncbi Antibacterial biodegradable Mg-Ag alloys
    D Tie
    Institute for Material Research, Helmholtz Zentrum Geesthacht, Max Planck Str 1, Geesthacht 21502, Germany
    Eur Cell Mater 25:284-98; discussion 298. 2013
    The use of magnesium alloys as degradable metals for biomedical applications is a topic of ongoing research and the demand for multifunctional materials is increasing...
  72. ncbi Influence of artificial biological fluid composition on the biocorrosion of potential orthopedic Mg-Ca, AZ31, AZ91 alloys
    X N Gu
    State Key Laboratory for Turbulence and Complex System and Department of Advanced Materials and Nanotechnology, College of Engineering, Peking University, Beijing 100871, People s Republic of China
    Biomed Mater 4:065011. 2009
    The electrochemical behavior of potential orthopedic Mg-Ca, AZ31 and AZ91 alloys was studied in Hank's solution, Dulbecco's Modified Eagle's Medium (DMEM) and serum-containing medium (DMEM adding 10% fetal bovine serum (DMEM+FBS)) over a ..
  73. ncbi Nanoporous PtAg and PtCu alloys with hollow ligaments for enhanced electrocatalysis and glucose biosensing
    Caixia Xu
    School of Chemistry and Chemical Engineering, University of Jinan, Jinan, China
    Biosens Bioelectron 27:160-6. 2011
    Nanoporous silver (NPS) and copper (NPC) obtained by dealloying AgAl and CuAl alloys, respectively, were used as both three-dimensional templates and reducing agents for the fabrication of nanoporous PtAg (NPS-Pt) and PtCu (NPC-Pt) alloys ..
  74. ncbi New oxidation treatment of NiTi shape memory alloys to obtain Ni-free surfaces and to improve biocompatibility
    A Michiardi
    Center of Reference for Bioengineering of Catalonia CREBEC, Biomaterials and Biomechanics Division, Department of Materials Science and Metallurgy, Technical University of Catalonia UPC, Avda Diagonal 647, Barcelona, 08028, Spain
    J Biomed Mater Res B Appl Biomater 77:249-56. 2006
    Various oxidation treatments were applied to nearly equiatomic NiTi alloys so as to form a Ni-free protective oxide on the surface...
  75. ncbi A rapid extractive spectrophotometric determination of copper(II) in environmental samples, alloys, complexes and pharmaceutical samples using 4-[N,N(dimethyl)amino]benzaldehyde thiosemicarbazone
    J Karthikeyan
    Department of Chemistry, Sathyabama University, Chennai, 600 119, India
    Environ Monit Assess 176:419-26. 2011
    ..The interference of various cations and anions in the method were studied. Thus the method can be employed for the determination of trace amount of copper(II) in water, alloys and other natural samples of significant importance.
  76. ncbi Titanium alloys as fixation device material for cranioplasty and its safety in electroconvulsive therapy
    Takanobu Kaido
    Department of Neurosurgery, National Center Hospital of Neurology and Psychiatry, National Center of Neurology and Psychiatry, Kodaira, Japan
    J ECT 27:e27-8. 2011
    ..No adverse effects occurred. Devices must be investigated and chosen very carefully for permanent implantation, especially in patients during a course of ECT...
  77. ncbi Magnesium alloys as implant materials--principles of property design for Mg-RE alloys
    N Hort
    GKSS Research Centre, Institute of Materials Research, Max Planck Str 1, D 21502 Geesthacht, Germany
    Acta Biomater 6:1714-25. 2010
    Magnesium alloys have attracted increasing interest in the past years due to their potential as implant materials...
  78. ncbi Cobalt-based alloys for orthopaedic applications studied by electrochemical and XPS analysis
    Aleksandra Kocijan
    Jozef Stefan Institute, Department of Physical and Organic Chemistry, Jamova 39, 1000 Ljubljana, Slovenia
    J Mater Sci Mater Med 15:643-50. 2004
    ..passive layers formed by electrochemical oxidation at different passivation potentials on Co-Cr-Mo and Co-Ni-Cr-Mo alloys in simulated physiological solution (SPS), with and without the complexing agent EDTA, was studied by X-ray ..
  79. pmc In vitro degradation behavior and cytocompatibility of Mg-Zn-Zr alloys
    Z G Huan
    Department of Materials Science and Engineering, Delft University of Technology, Mekelweg 2, 2628 CD, Delft, The Netherlands
    J Mater Sci Mater Med 21:2623-35. 2010
    Zinc and zirconium were selected as the alloying elements in biodegradable magnesium alloys, considering their strengthening effect and good biocompatibility...
  80. ncbi Biologically activated noble metal alloys at the nanoscale: for lithium ion battery anodes
    Yun Jung Lee
    Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
    Nano Lett 10:2433-40. 2010
    ..Given the demonstration of the electrochemical activity of noble metal alloy nanowires with various compositions, the M13 biological toolkit extended its utility for the study on the basic electrochemical property of materials...
  81. ncbi Cobalt-based bulk glassy alloy with ultrahigh strength and soft magnetic properties
    Akihisa Inoue
    Institute for Materials Research, Tohoku University, Sendai 980 8577, Japan
    Nat Mater 2:661-3. 2003
    Bulk metallic glasses--formed by supercooling the liquid state of certain metallic alloys--have potentially superior mechanical properties to crystalline materials. Here, we report a Co(43)Fe(20)Ta(5.5)B(31...
  82. ncbi In vitro studies of biomedical magnesium alloys in a simulated physiological environment: a review
    Y Xin
    School of Materials Science and Engineering, Chongqing University, Chongqing, China
    Acta Biomater 7:1452-9. 2011
    In spite of the immense potential of biodegradable magnesium alloys, the fast degradation rates of Mg-based biomedical implants in the physiological environment impose severe limitations in many clinical applications...
  83. ncbi Pt(x)Ru(1-x)/Ru(0001) surface alloys-formation and atom distribution
    H E Hoster
    Institute of Surface Chemistry and Catalysis, Ulm University, D 89069, Ulm, Germany
    Phys Chem Chem Phys 10:3812-23. 2008
    The formation of PtRu surface alloys by deposition of submonolayer Pt films on a Ru(0001) substrate and subsequent annealing to about 1350 K and the distribution of the Pt atoms in the surface layer were investigated by scanning tunneling ..
  84. ncbi In vitro degradation and mechanical integrity of Mg-Zn-Ca alloy coated with Ca-deficient hydroxyapatite by the pulse electrodeposition process
    H X Wang
    School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450002, China
    Acta Biomater 6:1743-8. 2010
    The key to manufacturing magnesium-based alloys that are suitable as biodegradable orthopaedic implants is how to adjust their degradation rates and mechanical integrity in the physiological environment...
  85. ncbi Mg-Zr-Sr alloys as biodegradable implant materials
    Yuncang Li
    Institute for Frontier Materials, Deakin University, Geelong, Victoria 3217, Australia
    Acta Biomater 8:3177-88. 2012
    Novel Mg-Zr-Sr alloys have recently been developed for use as biodegradable implant materials. The Mg-Zr-Sr alloys were prepared by diluting Mg-Zr and Mg-Sr master alloys with pure Mg...
  86. ncbi A preliminary investigation of shape memory alloys in the surgical correction of scoliosis
    J O Sanders
    Department of Orthopaedics, University of Texas Health Science Center at San Antonio
    Spine (Phila Pa 1976) 18:1640-6. 1993
    ..This offers interesting possibilities for scoliosis correction. Of the shape memory alloys, nitinol is the most promising medically because of biocompatibility and the ability to control transition ..
  87. ncbi Fracture of self-expanding nitinol stents stressed in vitro under simulated intravascular conditions
    Alexander Nikanorov
    Abbott Vascular, Santa Clara, Calif, USA
    J Vasc Surg 48:435-40. 2008
    ....
  88. ncbi Prevention of pin tract infection with titanium-copper alloys
    Toshiharu Shirai
    Department of Orthopaedic Surgery, Kanazawa University, Kanazawa 920 8641, Japan
    J Biomed Mater Res B Appl Biomater 91:373-80. 2009
    ..Two forms of Ti-Cu alloys were synthesized: one with 1% Cu and the other with 5% Cu...
  89. ncbi Inverse magnetocaloric effect in ferromagnetic Ni-Mn-Sn alloys
    Thorsten Krenke
    Fachbereich Physik, Experimentalphysik, Universitat Duisburg Essen, D 47048 Duisburg, Germany
    Nat Mater 4:450-4. 2005
    ..Here we report on an inverse situation in Ni-Mn-Sn alloys, whereby applying a magnetic field adiabatically, rather than removing it, causes the sample to cool...
  90. ncbi In vitro and in vivo studies of alkali- and heat-treated Ti-6Al-7Nb and Ti-5Al-2Nb-1Ta alloys for orthopedic implants
    S Tamilselvi
    Department of Chemistry, MIT Campus, Anna University, Chennai 44, India
    J Biomed Mater Res A 90:380-6. 2009
    In vitro studies of Ti-6Al-7Nb and Ti-5Al-2Nb-1Ta alloys were carried out by treating the specimens with 10 M NaOH at 60 degrees C for 24 h and subsequently heat-treated at 600 degrees C for 1 h...
  91. ncbi Biocompatibility studies of the Anaconda stent-graft and observations of nitinol corrosion resistance
    Robert Guidoin
    Department of Surgery, Laval University, and Quebec Biomaterials Institute, St Francois d Assise Hospital, CHUQ, Quebec, QC, Canada
    J Endovasc Ther 11:385-403. 2004
    ..To validate the deployment, in vivo performance, biostability, and healing capacity of the Anaconda self-expanding endoprosthesis in a canine aortic aneurysm model...
  92. ncbi Corroded nitinol wires in explanted aortic endografts: an important mechanism of failure?
    C Heintz
    Department of General, Vascular and Thoracic Surgery, General Hospital of Hamburg Harburg, Hamburg, Germany
    J Endovasc Ther 8:248-53. 2001
    ..To analyze surface alterations and fractures observed in the nitinol stent wires of explanted endovascular grafts used for treatment of abdominal aortic aneurysm...
  93. ncbi On the properties of two binary NiTi shape memory alloys. Effects of surface finish on the corrosion behaviour and in vitro biocompatibility
    Mohammed Es-Souni
    University of Applied Sciences, Surface and Thin Film Technology, Materials Testing and Joining, Kiel, Germany
    Biomaterials 23:2887-94. 2002
    ..The cytotoxicity tests were performed on both alloys in fibroblast cell cultures from human gingiva using the MTT test...
  94. ncbi Medical applications of shape memory alloys
    L G Machado
    Departamento de Engenharia Mecânica e de Materiais, Instituto Militar de Engenharia, Rio de Janeiro, RJ, Brasil
    Braz J Med Biol Res 36:683-91. 2003
    Shape memory alloys (SMA) are materials that have the ability to return to a former shape when subjected to an appropriate thermomechanical procedure...
  95. ncbi Magnesium alloys: predicting in vivo corrosion with in vitro immersion testing
    Jemimah Walker
    Department of Anatomy and Structural Biology, University of Otago, Dunedin, New Zealand
    J Biomed Mater Res B Appl Biomater 100:1134-41. 2012
    Magnesium (Mg) and its alloys have been proposed as degradable replacements to commonly used orthopedic biomaterials such as titanium alloys and stainless steel...
  96. ncbi In vitro biodegradation behavior of magnesium and magnesium alloy
    Hao Wang
    Faculty of Engineering and Surveying, University of Southern Queensland, Toowoomba, Queensland 4350, Australia
    J Biomed Mater Res B Appl Biomater 98:203-9. 2011
    Magnesium has the potential to be used as degradable metallic biomaterial. For magnesium and its alloys to be used as biodegradable implant materials, their degradation rates should be consistent with the rate of healing of the affected ..
  97. ncbi Effect of vascular stent alloys on expression of cellular adhesion molecules by endothelial cells
    Regina L W Messer
    Medical College of Georgia, Augusta, Georgia 30912 1100, USA
    J Long Term Eff Med Implants 15:39-47. 2005
    ..Furthermore, these ions are released in vitro and in vivo from the types of alloys used for vascular stents, but the full biological consequences of this release is not known...
  98. ncbi Critical overview of Nitinol surfaces and their modifications for medical applications
    S Shabalovskaya
    Katholieke Universiteit Leuven, MTM Kasteelpark Arenberg 44, B 3001 Leuven, Belgium
    Acta Biomater 4:447-67. 2008
    Nitinol, a group of nearly equiatomic shape memory and superelastic NiTi alloys, is being extensively explored for medical applications...
  99. ncbi Bio-corrosion characterization of Mg-Zn-X (X = Ca, Mn, Si) alloys for biomedical applications
    F Rosalbino
    Dipartimento di Scienza dei Materiali e Ingegneria Chimica, Politecnico di Torino, Torino, Italy
    J Mater Sci Mater Med 21:1091-8. 2010
    The successful applications of magnesium-based alloys as biodegradable orthopedic implants are mainly inhibited due to their high degradation rates in physiological environment. This study examines the bio-corrosion behaviour of Mg-2Zn-0...
  100. ncbi Critical discussion of the results from different corrosion studies of Mg and Mg alloys for biomaterial applications
    Wolf Dieter Mueller
    Dental and Biomaterial Research, Charite Universitaetsmedizin Berlin, Assmannshauser Str 4 6, 14197 Berlin, Germany
    Acta Biomater 6:1749-55. 2010
    ..also exist when comparing different in vitro results using different methodologies and even different Mg alloys, and need therefore to be discussed more thoroughly in the future...
  101. ncbi In vitro degradation and mechanical integrity of calcium-containing magnesium alloys in modified-simulated body fluid
    M Bobby Kannan
    Chemical and Mechanical Engineering, Monash University, Clayton, Victoria 3800, Australia
    Biomaterials 29:2306-14. 2008
    The successful applications of magnesium-based alloys as degradable orthopaedic implants are mainly inhibited due to their high degradation rates in physiological environment and consequent loss in the mechanical integrity...

Research Grants64

  1. Short Wavelength UV Sources for Treatment of Psoriasis
    JOSEPH SMART; Fiscal Year: 2006
    ..This proposal concentrates on the development of LEDs based on aluminum gallium nitride (AlGaN) alloys that can cover a large and useful portion of the UV spectrum...
  2. Fabrication of Denture Frameworks Using Titanium Alloys
    Marie Koike; Fiscal Year: 2010
    ..Metallic dentures are commonly fabricated using Co-Cr or Au-Pd alloys but the adverse effect of these metals to some patients (i.e., allergic reactions) has been increasing...
  3. Tribocorrosion in Modular Hip Joint Junctions-A Parametric Mechanistic Study
    MATHEW THOPPIL MATHEW; Fiscal Year: 2013
    ..kinetics as a function of pH and load Aim 3: Develop a tribocorrosion synergistic model for Ti and CoCrMo alloys and identify the mechanistic transitions as a function of pH and fretting regime...
  4. Feasibility Study of the ACT (Active Cancellation of Tremor) Device
    ANUPAM PATHAK; Fiscal Year: 2010
    ..Lynx Design will evaluate three possible actuator technologies- shape memory alloys, piezoelectrics, and electromagnetic actuators-and experimentally characterize the one found to be most suitable ..
  5. Nanotechnology Enabled Temporomandibular Joint (TMJ) Prosthesis
    RAYMOND G THOMPSON; Fiscal Year: 2010
    ..and methods will lead to a new class of functionalized nanostructured surfaces for titanium and cobalt chrome alloys for use in biomedical implant industry...
  6. Male Subfertility By Ni2+ Poisoning of Ca2+ Channels ?
    Susan Benoff; Fiscal Year: 2001
    Nickel is widely used in steel alloys and as metal plate. Nickel salts are well-recognized as allergens and carcinogens...
  7. Electrodeposited Noble Metal Oxide Neural Electrodes
    Stuart Cogan; Fiscal Year: 2002
    ..electrodeposition processes suitable for coating a broad range of metal substrates such as platinum, gold, PtIr-alloys, titanium, tungsten, and stainless steel, relevant to most neural recording and stimulating electrodes...
  8. The Anelastic Strain Response of Spine Rods in a Biologic Environment
    Reed A Ayers; Fiscal Year: 2010
    ..Colorado School of Mines this work will seek to determine the nature of analeastic responses of titanium and its alloys in a simulated body environment via collaboration with the Department of Orthopedics and the University Of ..
  9. Ultraprecision Diamond Machining of Conventional Non-Diamond Machinable Materials
    Gang Zhang; Fiscal Year: 2007
    ..It cannot machine many important materials such as ferrous alloys, stainless steel, titanium and nickel due to catastrophic diamond tool wear...
  10. Novel Titanium Material for Orthopaedic Lumbar Implants
    STANLEY ABKOWITZ; Fiscal Year: 2004
    ..Titanium, unlike stainless steel and chromium alloys, does not interfere with soft tissue imaging...
  11. EVALUATION OF MERCURY RELEASE FROM DENTAL AMALGAMS
    Toru Okabe; Fiscal Year: 2003
    ..A series of alloys will be prepared to test specific hypotheses about the effect of palladium (Pd) additions, silver (Ag) and tin (Sn)..
  12. Dental Cast Titanium-Ceramic Bonding
    Zhuo Cai; Fiscal Year: 2003
    ..metal-ceramic systems reflects two trends: 1) the search for economical alternatives to expensive noble metal alloys, and 2) the increased demand for biocompatible materials...
  13. Osseoinductive Surface Treatment for Dental Implants
    ZORAN MINEVSKI; Fiscal Year: 2005
    ..Phase I research will entail applying this new surface treatment to specific surgical titanium alloys followed by a series of dynamic in vitro wear, corrosion, cellular toxicity and cell adhesion/viability tests to ..
  14. STRUCTURE & PROPERTIES OF HIGH PALLADIUM DENTAL ALLOYS
    WILLIAM BRANTLEY; Fiscal Year: 2000
    DESCRIPTION (Adapted from the Applicant's Abstract): High-palladium alloys have become popular for metal-ceramic restorations and implant-supported prostheses, because of their much lower cost than gold alloys and their good mechanical ..
  15. Evaluation of Fiber Biomaterials for Oral Implantology
    Martin Freilich; Fiscal Year: 2005
    ..substructure without the potential for corrosion and toxicity which may be seen with commonly used metal alloys. Laboratory and clinical research evaluating FRC prostheses used to restore and replace teeth has shown that these ..
  16. Development of new elastic titanium immediate load implants
    Rong Wang; Fiscal Year: 2007
    ..The research will address two significant issues for the new titanium alloys, namely, to maximize elasticity with mechanical strength, and achieve high-rate osseointegration with long-term ..
  17. EFFECTS OF VANADIUM ON INSULIN TARGET TISSUES
    FREDERICK HAMEL; Fiscal Year: 1993
    ..increasingly a source of possible toxic effects through the use of fossil fuels and its incorporation into metal alloys. Vanadium in the form of vanadate has been shown to have a number of insulin-mimetic properties when given acutely ..
  18. Fatigue of Restorative Ceramics
    Jason A Griggs; Fiscal Year: 2010
    ..Unfortunately, dental ceramics are brittle in comparison to dental alloys. This lack of fracture resistance compromises their strength and reliability, resulting in decreased lifetime ..
  19. TITANIUM BASED VARIABLE MODULUS ORTHODONTIC WIRE
    LAURENCE SCHETKY; Fiscal Year: 1991
    ..New titanium based shape memory effect alloys show promise of being close to this ideal...
  20. DENTAL CASTING OF TITANIUM ALLOYS
    Toru Okabe; Fiscal Year: 2006
    ..of dental titanium casting and gained a great deal of knowledge on the casting process itself, on the experimental alloys showing promise for dentistry, and on methods of producing castings that will be acceptable for dental prostheses...
  21. OSTEOGENIC CELL RESPONSE TO CHEMICALLY MODIFIED TITANIUM
    KEVIN HEALY; Fiscal Year: 1993
    ..Implants fabricated from commercially pure titanium and titanium based alloys have shown impressive clinical results in the fields of cardiovascular, dental, maxillofacial, and orthopaedic ..
  22. OPTIMIZING CORROSION TESTING OF DENTAL ALLOYS
    Kirk Bundy; Fiscal Year: 1992
    Metallic alloys are widely used in restorative dentistry for permanent replacement of lost tooth and bone structure...
  23. NEW BIOCOMPATATIBLE TI FOR MAXILLOFACIAL PROSTHESES
    Rong Wang; Fiscal Year: 2002
    DESCRIPTION: The purpose of this research is to develop new titanium alloys for maxillofacial prostheses...
  24. CARCINOGENESIS TESTING OF SINTERED POROUS COCRMP IMPLANT
    BENDICHT PAULI; Fiscal Year: 1991
    Experiences with human patients and long-term experiments in laboratory rats show that some metal alloys, commonly used in implant surgery, may responsible for the development of implant site tumors...
  25. STRUCTURAL KINETIC STUDIES BY NUCLEAR MAGNETIC RESONANCE
    Alfred Redfield; Fiscal Year: 1999
    ..This method has been demonstrated previously in studies of metal alloys and small molecules...
  26. Investigation of Shape Memory Polymers in Orthodontics
    CHARLES BURSTONE; Fiscal Year: 2005
    ..SMP components have a number of advantages over shape memory alloys for orthodontics...
  27. Combinatorial Discovery of Memory Alloys for Fracture Resistant Arterial Stents
    Manfred Wuttig; Fiscal Year: 2007
    ..To improve current stenting technology, new shape memory alloys (Smash) with superior fatigue properties must be developed...
  28. SHAPE MEMORY ALLOY ACTUATOR SYSTEM FOR PROSTHETIC ELBOW
    CHARLES PFEIFFER; Fiscal Year: 2000
    ..By using technologically advanced materials such as Shape Memory Alloys (SMA's), a new type of actuator can be designed with superior performance...
  29. CERAMIC TIBIA FOR MOBILE BEARING KNEE
    Michael Anderson; Fiscal Year: 2007
    ..by developing and wear testing of a new ceramic optimized for low friction articulation against established CoCr alloys. The novel ceramic material was shown in standard tests to possess the highest combination of strength, toughness ..
  30. LOW-NOBLE METAL CONTENT DUPLEX DENTAL ALLOYS
    Rong Wang; Fiscal Year: 1991
    This program has a long term objective to provide superior composite dental alloys having metal/ceramics compatibility, and biocompatibility at a lower cost than the present high-noble alloys...
  31. Biocompatibility of Zirconium Alloys
    REX RAMSIER; Fiscal Year: 2004
    Zirconium alloys have begun to appear as candidates for biomedical applications, but very little is known about the biocompatibility of this class of materials...
  32. DEVELOPMENT OF A SUSPENSION CELL CULTURE CORROSION TEST
    LINDA LUCAS; Fiscal Year: 1993
    ..by evaluating the generation and release of corrosion products from a series of nickel-chrome dental casting alloys and. their effect on cellular activity...
  33. Advanced Mercury Free Restorative Alloys Technology
    David Lashmore; Fiscal Year: 2002
    ..Using these mercury free alloys, Dentists would no longer need to handle, breath, or dispose of mercury containing waste products. ..
  34. NEUTRON DETECTORS FOR MACROMOLECULAR CRYSTALLOGRAPHY
    KRISHNA MANDAL; Fiscal Year: 2004
    ..4 atomic %) a-Se (As, CI) alloys, detector design and fabrication, and performance evaluation at Spallation Neutron Source (SNS), Oak Ridge ..
  35. NOVEL CORROSION RESISTANT BIOACTIVE SURGICAL IMPLANTS
    ZORAN MINEVSKI; Fiscal Year: 2000
    ..abstract): Phase I research demonstrated the technical feasibility for electrolytic phosphation of Ti6Al4V alloys. It was shown that surface phosphate concentration could be carefully controlled using deposition voltage, ..
  36. NOVEL PROCESS FOR FABRICATING PROSTHETIC ALLOYS
    RAMAS RAMAN; Fiscal Year: 1993
    ..Phase III will involve setting up a manufacturing facility to commercialize this product...
  37. Short Wavelength UV LEDs Based on Bulk Nitride Substrates
    LEO SCHOWALTER; Fiscal Year: 2005
    ..The unique properties of this AIM substrate, including its close lattice- match to AIGaN alloys and its exceedingly low defect density, enable the manufacture of LEDs with shorter wavelength, higher efficiency, ..
  38. FABRICATING HIGH PERFORMANCE PROSTHESES
    RAMAS RAMAN; Fiscal Year: 1991
    ..demonstrate feasibility of fabricating highly corrosion resistant, high fatigue strength Co-Cr- Mo-C hip implant alloys. The benefitsof recently developed powders metal consolidaion process (Ceracon) to form ultrafine-grained near net ..
  39. Cytoxicity and Solubility of Beryllium Particles
    Patrick Breysse; Fiscal Year: 2002
    ..in that these experiments an accurate simulant of the intracellular dissolution environment, will investigate beryllium copper alloys, and will test workplace sampled exposure materials associated with causing CBD.
  40. Shape Memory Thin Film Actuated Endoluminal Microdevices
    A Johnson; Fiscal Year: 2002
    ..and delivered by microcatheters to lesion sites where the shape-changing characteristics of these alloys will be exploited to repair, reinforce, and protect vascular tissues...
  41. CASTABILITY QUANTIFICATION BY IMAGE ANALYSIS
    Stephen Cohen; Fiscal Year: 1991
    Excellent castability characteristics in dental alloys are critical for the consistent production of sound, well fitting cast restorations without the necessity of frequent costly and time consuming remakes...
  42. Development of SMP's for Cardiovascular Use
    Robin Shandas; Fiscal Year: 2006
    ..becoming more sophisticated through the use of precisely engineered materials such as metal bimorphs (shape memory alloys) and new polymer structures...
  43. SHAPE MEMORY ALLOYS--THEIR APPLICATION TO MICROSURGERY
    Steve Charles; Fiscal Year: 1990
    ..Commercially, the 3-DOF fine positioner can be used in the microsurgery area to position cutters, forceps, shears, illuminators and pics - the majority of the tools used in every operation...
  44. MICROSTRUCTURE VS DETERIORATION OF AMALGAM RESTORATIONS
    Grayson Marshall; Fiscal Year: 1991
    ..These restorations are representative of amalgam alloys covering the spectrum of available amalgams and have been clinically evaluated at regular intervals since ..
  45. RELEASE OF METALLIC ELEMENTS FROM DENTAL ALLOYS
    Miroslav Marek; Fiscal Year: 1992
    ..Further scientific data for the CRISP System are unavailable at this time...
  46. Bioreactivity Markers in Total Hip Replacments
    Nadim Hallab; Fiscal Year: 2004
    ..Additionally, variable immunologic responses induced by implant degradation products (i.e. lymphocyte response to metal ions and monocyte/macrophage response to particulate debris) will be correlated with the development of osteolysis ..