Horacio D Espinosa

Summary

Affiliation: Northwestern University
Country: USA

Publications

  1. doi request reprint In Situ TEM Electromechanical Testing of Nanowires and Nanotubes
    Horacio D Espinosa
    Department of Mechanical Engineering, Northwestern University, 2145 Sheridan Rd, Evanston, IL 60208 3111, USA
    Small 8:3233-52. 2012
  2. doi request reprint A review of mechanical and electromechanical properties of piezoelectric nanowires
    Horacio D Espinosa
    Department of Mechanical Engineering, Northwestern University, Evanston, IL60208 3111, USA
    Adv Mater 24:4656-75. 2012
  3. doi request reprint Multiscale experimental mechanics of hierarchical carbon-based materials
    Horacio D Espinosa
    Department of Mechanical Engineering, Northwestern University, Evanston, IL 60208 3111, USA
    Adv Mater 24:2805-23. 2012
  4. doi request reprint Tablet-level origin of toughening in abalone shells and translation to synthetic composite materials
    Horacio D Espinosa
    Northwestern University, Mechanical Engineering, 2145 Sheridan Road, Evanston, Illinois 60208 3111, USA
    Nat Commun 2:173. 2011
  5. doi request reprint Effect of growth orientation and diameter on the elasticity of GaN nanowires. A combined in situ TEM and atomistic modeling investigation
    Rodrigo A Bernal
    Department of Mechanical Engineering, Northwestern University, Evanston, Illinois 60208 3111, USA
    Nano Lett 11:548-55. 2011
  6. ncbi request reprint Novel ultrananocrystalline diamond probes for high-resolution low-wear nanolithographic techniques
    Keun Ho Kim
    Department of Mechanical Engineering, Northwestern University, Evanston, IL 60208, USA
    Small 1:866-74. 2005
  7. doi request reprint Giant piezoelectric size effects in zinc oxide and gallium nitride nanowires. A first principles investigation
    Ravi Agrawal
    Department of Mechanical Engineering, Northwestern University, Evanston, Illinois 60208 3111, USA
    Nano Lett 11:786-90. 2011
  8. doi request reprint Experimental-computational investigation of ZnO nanowires strength and fracture
    Ravi Agrawal
    Department of Mechanical Engineering, Northwestern University, Evanston, Illinois 60208 3111, USA
    Nano Lett 9:4177-83. 2009
  9. doi request reprint Bio-inspired carbon nanotube-polymer composite yarns with hydrogen bond-mediated lateral interactions
    Allison M Beese
    Department of Mechanical Engineering, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208 3111, United States
    ACS Nano 7:3434-46. 2013
  10. doi request reprint Measurements of near-ultimate strength for multiwalled carbon nanotubes and irradiation-induced crosslinking improvements
    Bei Peng
    Department of Mechanical Engineering, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208 3111, USA
    Nat Nanotechnol 3:626-31. 2008

Collaborators

  • George C Schatz
  • Changhong Ke
  • Jee E Rim
  • Markus J Buehler
  • Wei Cai
  • Steven L Mielke
  • Dean Ho
  • Punit Kohli
  • Ravi Agrawal
  • Rodrigo A Bernal
  • Tobin Filleter
  • Mohammad Naraghi
  • Bei Peng
  • Wonmo Kang
  • Majid Minary-Jolandan
  • Xiaoding Wei
  • Owen Loh
  • Owen Y Loh
  • Allison M Beese
  • Jeffrey T Paci
  • Keun Ho Kim
  • Nicolaie Moldovan
  • Michael R Roenbeck
  • Asmahan Safi
  • Fazel Yavari
  • Rebecca L McNaughton
  • Lincoln J Lauhon
  • Kwonnam Sohn
  • Jiaxing Huang
  • SonBinh T Nguyen
  • Victor Parpoil
  • James R Riley
  • Alexander Moravsky
  • Raouf O Loutfy
  • Shuyou Li
  • Mark Locascio
  • Bart C Prorok
  • Justin G Connell
  • Al ona Furmanchuk
  • Zhi An
  • Sourangsu Sarkar
  • Arun Nair
  • Juan P Giraldo-Vela
  • John Sullivan
  • Ralu Divan
  • George T Wang
  • Leonidas E Ocola
  • Qiming Li
  • Scott Yockel
  • Maricris L Mayes
  • Seunghwa Ryu
  • Owen C Compton
  • Keonwook Kang
  • Jie Yin
  • Irma Kuljanishvili
  • Norman A Sanford
  • Albert V Davydov
  • Kristine A Bertness
  • Houjin Huang
  • Mark Chen
  • Robert Lam
  • Neelesh A Patankar
  • Andrea M Ho
  • Eleftherios E Gdoutos
  • Peter Zapol
  • John A Carlisle
  • Orlando Auciello
  • Xingcheng Xiao

Detail Information

Publications30

  1. doi request reprint In Situ TEM Electromechanical Testing of Nanowires and Nanotubes
    Horacio D Espinosa
    Department of Mechanical Engineering, Northwestern University, 2145 Sheridan Rd, Evanston, IL 60208 3111, USA
    Small 8:3233-52. 2012
    ....
  2. doi request reprint A review of mechanical and electromechanical properties of piezoelectric nanowires
    Horacio D Espinosa
    Department of Mechanical Engineering, Northwestern University, Evanston, IL60208 3111, USA
    Adv Mater 24:4656-75. 2012
    ..We show that such a combined approach is critical to establish synthesis-structure-property relations that will pave the way for optimal usage of piezoelectric nanowires...
  3. doi request reprint Multiscale experimental mechanics of hierarchical carbon-based materials
    Horacio D Espinosa
    Department of Mechanical Engineering, Northwestern University, Evanston, IL 60208 3111, USA
    Adv Mater 24:2805-23. 2012
    ....
  4. doi request reprint Tablet-level origin of toughening in abalone shells and translation to synthetic composite materials
    Horacio D Espinosa
    Northwestern University, Mechanical Engineering, 2145 Sheridan Road, Evanston, Illinois 60208 3111, USA
    Nat Commun 2:173. 2011
    ..Ultimately, lessons from this investigation may be key to realizing the immense potential of widely pursued nanocomposites...
  5. doi request reprint Effect of growth orientation and diameter on the elasticity of GaN nanowires. A combined in situ TEM and atomistic modeling investigation
    Rodrigo A Bernal
    Department of Mechanical Engineering, Northwestern University, Evanston, Illinois 60208 3111, USA
    Nano Lett 11:548-55. 2011
    ..Our work establishes that elasticity size dependence is limited to nanowires with diameters smaller than 20 nm. For larger diameters, the elastic modulus converges to the bulk values of 300 GPa for c-axis and 267 GPa for a- and m-axis...
  6. ncbi request reprint Novel ultrananocrystalline diamond probes for high-resolution low-wear nanolithographic techniques
    Keun Ho Kim
    Department of Mechanical Engineering, Northwestern University, Evanston, IL 60208, USA
    Small 1:866-74. 2005
    ....
  7. doi request reprint Giant piezoelectric size effects in zinc oxide and gallium nitride nanowires. A first principles investigation
    Ravi Agrawal
    Department of Mechanical Engineering, Northwestern University, Evanston, Illinois 60208 3111, USA
    Nano Lett 11:786-90. 2011
    ..These results have strong implication in the field of energy harvesting, as piezoelectric voltage output scales with the piezoelectric coefficient...
  8. doi request reprint Experimental-computational investigation of ZnO nanowires strength and fracture
    Ravi Agrawal
    Department of Mechanical Engineering, Northwestern University, Evanston, Illinois 60208 3111, USA
    Nano Lett 9:4177-83. 2009
    ..5%. The differences between experiments and computations are discussed in the context of (i) surface defects observed in the ZnO nanowires, and (ii) instability in the loading mechanism at the initiation of transformation...
  9. doi request reprint Bio-inspired carbon nanotube-polymer composite yarns with hydrogen bond-mediated lateral interactions
    Allison M Beese
    Department of Mechanical Engineering, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208 3111, United States
    ACS Nano 7:3434-46. 2013
    ..Molecular dynamics (MD) simulations confirm this trend, showing the dominance of nonproductive hydrogen bonding between PVA molecules at high PVA contents, which lubricates the interface between DWNTs...
  10. doi request reprint Measurements of near-ultimate strength for multiwalled carbon nanotubes and irradiation-induced crosslinking improvements
    Bei Peng
    Department of Mechanical Engineering, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208 3111, USA
    Nat Nanotechnol 3:626-31. 2008
    ..This effect is attributed to crosslinking between the shells. Computer simulations also illustrate the effects of various irradiation-induced crosslinking defects on load sharing between the shells...
  11. ncbi request reprint In situ electron microscopy four-point electromechanical characterization of freestanding metallic and semiconducting nanowires
    Rodrigo A Bernal
    Department of Mechanical Engineering, Northwestern University, Evanston, IL, 60208, USA
    Small 10:725-33. 2014
    ..For both metallic and semiconducting nanowires, variations of the contact resistance as strain is applied are observed. These variations must be considered in the interpretation of future two-point electromechanical measurements. ..
  12. doi request reprint In situ scanning electron microscope peeling to quantify surface energy between multiwalled carbon nanotubes and graphene
    Michael R Roenbeck
    Department of Mechanical Engineering, and Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208 3111, United States
    ACS Nano 8:124-38. 2014
    ....
  13. doi request reprint Microfluidic parallel patterning and cellular delivery of molecules with a nanofountain probe
    Wonmo Kang
    1Department of Mechanical Engineering, Northwestern University, Evanston, IL, USA
    J Lab Autom 19:100-9. 2014
    ..We discuss the ongoing development of the tool toward automated operation and its potential as a multifunctional device for microarray applications and time-dependent single-cell studies. ..
  14. doi request reprint Carbon-carbon contacts for robust nanoelectromechanical switches
    Owen Loh
    Dept of Mechanical Engineering, Northwestern University, 2145 Sheridan Rd, Evanston, IL 60208 3111, USA
    Adv Mater 24:2463-8. 2012
    ..This in turn represents a viable means to improve the reliability of a diverse, and widely-pursued class of nanoscale devices ranging from single-nanostructure switches to massively parallel arrays...
  15. doi request reprint Individual GaN nanowires exhibit strong piezoelectricity in 3D
    Majid Minary-Jolandan
    Department of Mechanical Engineering, Northwestern University, Evanston, Illinois 60208, USA
    Nano Lett 12:970-6. 2012
    ..The presented method is applicable to other piezoelectric NW materials as well as wires manufactured along different crystallographic orientations...
  16. doi request reprint Optimal length scales emerging from shear load transfer in natural materials: application to carbon-based nanocomposite design
    Xiaoding Wei
    Department of Mechanical Engineering, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208 3111, USA
    ACS Nano 6:2333-44. 2012
    ..The model was then used to interpret load transfer capabilities in synthetic carbon-based materials through parametrization of in situ SEM shear experiments on overlapping multiwall carbon nanotubes...
  17. doi request reprint Experimental-computational study of shear interactions within double-walled carbon nanotube bundles
    Tobin Filleter
    Department of Mechanical Engineering, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208 3111, USA
    Nano Lett 12:732-42. 2012
    ..The sum of force contributions from potential energy and dissipation effects are found to agree with the experimental pullout force within the experimental error...
  18. doi request reprint Dimensional analysis and parametric studies for designing artificial nacre
    Jee E Rim
    Department of Mechanical Engineering, Northwestern University, Evanston, IL 60208 3111, USA
    J Mech Behav Biomed Mater 4:190-211. 2011
    ....
  19. pmc Nanofountain probe electroporation (NFP-E) of single cells
    Wonmo Kang
    Department of Mechanical Engineering, Northwestern University, Evanston, Illinois 60208, USA
    Nano Lett 13:2448-57. 2013
    ..Our experiments on HeLa cells confirm that NFP-E offers single cell selectivity, high transfection efficiency (>95%), qualitative dosage control, and very high viability (92%) of transfected cells...
  20. doi request reprint Elasticity size effects in ZnO nanowires--a combined experimental-computational approach
    Ravi Agrawal
    Department of Mechanical Engineering, 2145 Sheridan Road, Northwestern University, Evanston, Illinois 60208 3111, USA
    Nano Lett 8:3668-74. 2008
    ..The computational results demonstrate similar size dependence, complementing the experimental findings, and reveal that the observed size effect is an outcome of surface reconstruction together with long-range ionic interactions...
  21. doi request reprint Nucleation-controlled distributed plasticity in penta-twinned silver nanowires
    Tobin Filleter
    Department of Mechanical Engineering, Northwestern University, Evanston IL 60208, USA
    Small 8:2986-93. 2012
    ..Thick NWs exhibit lower flow stress and number of distributed plastic zones due to the onset of necking accompanied by more complex dislocation structures...
  22. ncbi request reprint A multiscale study of high performance double-walled nanotube-polymer fibers
    Mohammad Naraghi
    Department of Mechanical Engineering, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
    ACS Nano 4:6463-76. 2010
    ....
  23. pmc Electric field-induced direct delivery of proteins by a nanofountain probe
    Owen Y Loh
    Department of Mechanical Engineering, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208, USA
    Proc Natl Acad Sci U S A 105:16438-43. 2008
    ..As such, the NFP combines the high-resolution of dip-pen nanolithography with the efficient continuous liquid feeding of micropipettes while allowing scalability to 1- and 2D probe arrays for high throughput...
  24. ncbi request reprint Nanofountain-probe-based high-resolution patterning and single-cell injection of functionalized nanodiamonds
    Owen Loh
    Department of Mechanical Engineering, Northwestern University, Evanston, IL 60208 3111, USA
    Small 5:1667-74. 2009
    ..These initial demonstrations of controlled delivery open the door to future studies examining the nanofountain probe's potential in delivering specific doses of DNA, viruses, and other therapeutically relevant biomolecules...
  25. ncbi request reprint A nanofountain probe with Sub-100 nm molecular writing resolution
    Keun Ho Kim
    Department of Mechanical Engineering, Northwestern University, 2145 Sheridan Rd, Evanston, IL 60208 3111, USA
    Small 1:632-5. 2005
  26. ncbi request reprint In situ electron microscopy electromechanical characterization of a bistable NEMS device
    Changhong Ke
    Department of Mechanical Engineering, Northwestern University, Evanston, IL 60208 3111, USA
    Small 2:1484-9. 2006
    ..Failure mechanisms observed during the pull-in/pull-out event are also reported and discussed...
  27. ncbi request reprint Nanoelectromechanical contact switches
    Owen Y Loh
    Mechanical Engineering, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208 3111, USA
    Nat Nanotechnol 7:283-95. 2012
    ....
  28. ncbi request reprint Atom probe tomography of a-axis GaN nanowires: analysis of nonstoichiometric evaporation behavior
    James R Riley
    Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, USA
    ACS Nano 6:3898-906. 2012
    ....
  29. ncbi request reprint Large-scale density functional theory investigation of failure modes in ZnO nanowires
    Ravi Agrawal
    Department of Mechanical Engineering, 2145 Sheridan Road, Northwestern University, Evanston, Illinois 60208 3111, USA
    Nano Lett 10:3432-8. 2010
    ..Peng, B.; Espinosa, H. D. Nano Lett. 2009, 9 (12), 4177-2183) is elucidated...
  30. ncbi request reprint Effects of nanometer-thick passivation layers on the mechanical response of thin gold films
    Bart C Prorok
    Department of Mechanical Engineering, Northwestern University, Evanston, Illinois 60208 3111, USA
    J Nanosci Nanotechnol 2:427-33. 2002
    ..Membrane width had the greatest effect on the residual stress state with smaller widths having larger residual stress...