Research Topics
| R S MarksSummaryAffiliation: Ben-Gurion University of the Negev Country: Israel Publications
| Collaborators
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Detail Information
Publications
A comparative study of gallstones from children and adults using FTIR spectroscopy and fluorescence microscopyOleg Kleiner
Department of Physics, Ben Gurion University, Beer Sheva, 84105, Israel
BMC Gastroenterol 2:3. 2002..Recent years has seen an increasing trend in the number of cases involving children. The focus of this study is on the analysis of the chemical composition of gallstones from child and adult patients using spectroscopic methods...
Development of a chemiluminescent optical fiber immunosensor to detect Streptococcus pneumoniae antipolysaccharide antibodiesR S Marks
Unit of Biotechnology, Soroka University, Beer Sheva, Israel
Appl Biochem Biotechnol 89:117-26. 2000..It was concluded that the optical immunosensor system is an accurate and sensitive method to detect antipneumococcal antibodies and may be an adequate tool to monitor antibodies in specimens such as saliva and urine...- An innovative strategy for immobilization of receptor proteins on to an optical fiber by use of poly(pyrrole-biotin)Robert S Marks
Department of Biotechnology Engineering Ben Gurion University of the Negev, PO Box 653, Beer Sheva 84105, Israel
Anal Bioanal Chem 374:1056-63. 2002..It was shown that the fiber-optic immuno-assay for the detection of anti-cholera toxin antibody was up to three orders of magnitude more sensitive than the classical enzyme-linked immunosorbent assay (ELISA)... 
Electrochemistry and chemiluminescence techniques compared in the detection of NADPH oxidase activity in phagocyte cellsA Ashkenazi
Department of Biotechnology Engineering, Ben Gurion University of the Negev, Beer Sheva, Israel
Talanta 77:1460-5. 2009..Thus, the electrochemical technique could be used as an alternative to optical techniques for the evaluation of extracellular ROS in phagocyte cells...- ITO pattern fabrication of glass platforms for electropolymerization of light sensitive polymer for its conjugation to bioreceptors on a micro-arrayT Konry
Department of Biotechnology Engineering, Faculty of Engineering Science, P O Box 653, Beer Sheva 84105, Israel
Talanta 75:564-71. 2008..In addition we used our pattern ITO-poly(pyrrole-benzophenone) micro-array for the detection of serum samples of Hepatitis B virus patients previously screened by a standard hospital detection method... - Development of an "electroptode" immunosensor: indium tin oxide-coated optical fiber tips conjugated with an electropolymerized thin film with conjugated cholera toxin B subunitTania Konry
The Institute for Applied Biosciences, Ben Gurion University of the Negev, P.O. Box 653, Beer Sheva, 84105, Israel
Anal Chem 75:2633-9. 2003..The biosensor was tested for sensitivity, nonspecificity, and overall practicality... - Optical fiber immunosensor based on a poly(pyrrole-benzophenone) film for the detection of antibodies to viral antigenT Konry
National Institute for Biotechnology in the Negev, Department of Biotechnology Engineering, Faculty of Engineering Science and the Department of Virology, Faculty of Health Science, Ben Gurion University of the Negev, Beer Sheva, Israel
Anal Chem 77:1771-9. 2005..If transformed into an easy to use procedure, this assay might be used in the future as an important clinical tool for HCV screening in blood banks... - Highly sensitive amperometric immunosensor for the detection of Escherichia coliK Abu-Rabeah
Department of Biotechnology Engineering, Ben Gurion University of the Negev, P O Box 653, Beer Sheva 84105, Israel
Biosens Bioelectron 24:3461-6. 2009.... - Synthesis and characterization of a pyrrole-alginate conjugate and its application in a biosensor constructionKhalil Abu-Rabeah
The National Institute for Biotechnology in the Negev and Department of Biotechnology Engineering, Ben-Gurion University of the Negev, P.O. Box 653, Beer Sheva 84105, Israel
Biomacromolecules 6:3313-8. 2005.... - Optical fiber immunosensor for the detection of IgG antibody to Rift Valley fever virus in humansA Sobarzo
Department of Virology, Ben Gurion University of the Negev, Beer Sheva 84105, Israel
J Virol Methods 146:327-34. 2007..22% and diagnostic specificity 98.86%. Our results demonstrate that the OFIS technology reported here is highly accurate, simple to perform and has the potential to be used in a portable format... - Characterization of electrogenerated polypyrrole-benzophenone films coated on poly(pyrrole-methyl metacrylate) optic-conductive fibersKhalil Abu-Rabeah
Department of Biotechnology Engineering Ben Gurion University of the Negev, P O Box 653, Beer Sheva 84105, Israel
Langmuir 25:10384-9. 2009..The platform potential was then demonstrated by the construction of both amperometric and optical biosensors... - Immobilization strategies of Brucella particles on optical fibers for use in chemiluminescence immunosensorsYael Liebes
Department of Biotechnology Engineering, Ben Gurion University of the Negev, Beer Sheva 84105, Israel
Talanta 80:338-45. 2009.... - Photochemical attachment of biomolecules onto fibre-optics for construction of a chemiluminescent immunosensorBoaz Leshem
Department of Biotechnology Engineering, Ben-Gurion University of the Negev, PO Box 653, Beer Sheva 84105, Israel
Luminescence 19:69-77. 2004..A photo-electronic set-up was designed specifically to monitor the signal. The immunosensor system was shown to be both specific and sensitive. The lowest rabbit serum titre detected was 1:1 700,000... - T7 phage display of Ep15 peptide for the detection of WNV IgGSebastien Herrmann
Department of Biotechnology Engineering, Ben Gurion University of the Negev, Beer Sheva 84105, Israel
J Virol Methods 141:133-40. 2007.... - Synthesis and characterization of a biotin-alginate conjugate and its application in a biosensor constructionBoris Polyak
The Institute for Applied Biosciences and Department of Biotechnology Engineering, Ben-Gurion University of the Negev, PO Box 653, Beer Sheva 84105, Israel
Biomacromolecules 5:389-96. 2004.... - Chemiluminescent optical fiber immunosensor for detection of autoantibodies to ovarian and breast cancer-associated antigensOrly Salama
Department of Biotechnology Engineering, The National Institute for Biotechnology in the Negev, and Soroka University Hospital, Ben Gurion University of the Negev, Beer Sheva 84105, Israel
Biosens Bioelectron 22:1508-16. 2007..We envision that this immunosensor may serve as a diagnostic tool for screening women for ovarian and breast cancer at an early stage, thus increasing their chance of survival... - Dynamic component chemiluminescent sensor for assessing circulating polymorphonuclear leukocyte activity of peritoneal dialysis patientsDaria Prilutsky
Department of Biotechnology Engineering, Ben Gurion University of the Negev, Beer Sheva 84105, Israel
Anal Chem 80:5131-8. 2008..6% predictive accuracy). In conclusion, this novel method shows a high predictive diagnostic value and may assist in detection of PD-associated clinical states... - Luminol-dependent chemiluminescence of human phagocyte cell lines: comparison between DMSO differentiated PLB 985 and HL 60 cellsAvraham Ashkenazi
Department of Biotechnology Engineering, Ben Gurion University of the Negev, PO Box 653, Beer Sheva 84105, Israel
Luminescence 24:171-7. 2009..However, the LCL capacity (area under the curve) of DMSO induced PLB 985 cells was higher than that of HL 60 cells in response to both PMA and OZ, which implies a higher capacity to generate reactive oxygen species in PLB 985 cells... - Construction of amperometric immunosensors based on the electrogeneration of a permeable biotinylated polypyrrole filmRodica E Ionescu
The Institute for Applied Biosciences and Department of Biotechnology Engineering, Ben-Gurion University of the Negev, P.O. Box 653, Beer-Sheva, 84105, Israel
Anal Chem 76:6808-13. 2004..Hence, when the presence of the HRP marker of the immunoassay was determined using hydroquinone, the production of electroactive quinone was shown to permeate faster to the electrode, thus providing a faster response time... - Preparation and characterization of a novel pyrrole-benzophenone copolymerized silica nanocomposite as a reagent in a visual immunologic-agglutination testPola Goldberg-Oppenheimer
Department of Chemical Engineering, Ben Gurion University of the Negev, 84105 Beer Sheva, Israel
Talanta 75:1324-31. 2008..These dispersions were characterized by cryogenic transmission microscopy (cryo-TEM), scanning electron microscopy (SEM), FTIR and X-ray photoelectron spectroscopy (XPS)... - Amperometric immunosensor for the detection of anti-West Nile virus IgGRodica E Ionescu
Département de Chimie Moléculaire UMR 5250, ICMG FR 2607, CNRS Université Joseph Fourier, BP 53, 38041 Grenoble Cedex 9, France
Anal Chem 79:8662-8. 2007..The optimum immunosensor configuration detected low WNV-antibody dilutions down to a titer of 1:10(7) with an excellent regeneration of the immunosensor response by glycine treatment... - Protease amperometric sensorRodica E Ionescu
Laboratoire d'Electrochimie Organique et de Photochimie Redox, UMR CNRS 5630, , FR CNRS 2607, , BP 53, 38041 Grenoble, Cedex 9, France
Anal Chem 78:6327-31. 2006.... - Electroenzymatic polypyrrole-intercalator sensor for the determination of West Nile virus cDNASerge Cosnier
Anal Chem 78:7054-7. 2006..The latter was thus amperometrically detected after its hybridization in solution with a biotinylated complementary oligonucleotide followed by its anchoring and labeling by a glucose oxidase at 1 pg/mL...