US and International Patents Awarded

  1. United States Patent Number 5,628,824 entitled "High Growth Rate Homoepitaxial Diamond Film Deposition at High Temperatures by Microwave Plasma-Assisted Chemical Vapor Deposition, Yogesh. K. Vohra and Thomas. S. McCauley, Date of Patent: May 13, 1997.
  2. United States Patent Number 6,183,818 entitled “Process for Ultra Smooth Diamond Coating on Metals and Uses Thereof”, Yogesh K. Vohra and Shane A. Catledge, Date of Patent: February 6, 2001.
  3. United States Patent Number 6,858,078 entitled “Apparatus and Method for Diamond Production”, Russell Hemley, Ho-Kwang Mao, Chih-Shiue Yan and Yogesh Vohra, Date of Patent: February 22, 2005.
  4. U.S. Provisional Patent Application No. 60/721,697 entitled “Ultra Smooth Nanostructured Diamond Films and Compositions and Methods for Producing Same”, by Valeriy V. Konovalov, Yogesh K. Vohra, and Shane A. Catledge, Filed on September 29th, 2006.
  5. United States Patent Number 7,235,130 entitled “Apparatus and Method for Diamond Production”, Russell J. Hemley, Ho-kwang Mao, Chih-Shiue Yan and Yogesh K. Vohra, Date of Patent: June 26, 2007.
  6. United States Patent Number 7,452,420 entitled “Apparatus and Method for Diamond Production”, Russell J. Hemley, Ho-kwang Mao, Chih-Shiue Yan and Yogesh K. Vohra, Date of Patent: November 18, 2008.

Publications 2005-onwards

  1. T. R. Lawson, S. A. Catledge, and Y. K. Vohra, “Nanostructured Diamond Coated CoCrMo Alloys for Use in Biomedical Implants”, Key Engineering Materials Vols. 284-286, 1015 (2005).
  2. Hyunbin Kim, Yogesh K. Vohra, Patrick J. Louis, William R. Lacefield, Jack E. Lemons, and Renato P. Camata, “Biphasic and Preferentially Oriented Microcrystalline Calcium Phosphate Coatings: In Vitro and In Vivo Studies”,  Key Engineering Materials Vols. 284-286, 207 (2005).
  3. S. A. Catledge, Y. K. Vohra, and P. B. Mirkarimi, “Low Temperature Growth of Nanostructured Diamond on Quartz Spheres”, J. of Phys. D: Appl. Phys. 38, 1410 (2005).
  4. S. Chowdhury, Vinoy Thomas, Derrick Dean, Shane A. Catledge, Yogesh K. Vohra, “Nanoindentation on Porous Bioceramic Scaffolds for Bone Tissue Engineering”,  J. Nanosci. Nanotechnol. 5, 1816 (2005).
  5. H. Kim, R. P. Camata, Y. K. Vohra, W. R. Lacefield, “Control of Phase Composition in Hydroxyapatite/Tetracalcium Phosphate Biphasic Thin Coatings for Biomedical Implants, Journal of Materials Science: Materials in Medicine 16, 961 (2005).
  6. D. Dean, M. V. Jose, M. Abdalla, K. Green, S. Bellis, Vinoy Thomas, Y.K. Vohra, N. Elijah, “Multifunctional Tissue Scaffolds of Polymeric Nanofibers by Electrospinning”, Polym. Mater. Sci. Engg. 93, 507 (2005).
  7. William. C. Clem, Valeriy V. Konovalov, Shafiul Chowdhury, Yogesh K. Vohra , Shane A. Catledge, and Susan L. Bellis, “Mesenchymal Stem Cell Adhesion and Spreading on Microwave Plasma Nitrided Titanium Alloy”, J Biomed Mater Res. 76A(2), 279 (2006).
  8. Vinoy Thomas, Sunita Jagani, Kalonda Johnson, Moncy V. Jose, Derrick R. Dean, Yogesh K. Vohra, and Elijah Nyairo “Electrospun Bioactive Nanocomposite Scaffolds of Polycaprolactone and Nanohydroxyapatite for Bone Tissue Engineering”, J. Nanosci. Nanotechnol. 6, 487–493 (2006).
  9. Veleriy V. Konovalov, Andrew Melo, Shane A. Catledge, Shafiul Chowdhury, and Yogesh K. Vohra, “Ultra-Smooth Nanostructured Diamond Films Deposited from He/H2CH4/N2 Microwave Plasmas”, J. Nanosci. Nanotechnol. 6, 258-261 (2006).
  10. Shane A. Catledge, Vinoy Thomas, and Yogesh K. Vohra, “Effect of Surface Oxides and Intermetallics on Nanostructured Diamond Coating of Nitinol”, Current Nanoscience 2, 9 (2006).
  11. Vinoy Thomas, Derrick R. Dean, and Yogesh K. Vohra, “Nanostructured Biomaterials for Regenerative Medicine”, Current Nanoscience 2, 155 (2006).
  12. Vinoy Thomas, Moncy V. Jose, S. Chowdhury, Jonathan F. Sullivan, Derrick R. Dean, and Yogesh K. Vohra, “Mechano-morphological Studies of Aligned Nanofibrous Scaffolds of Polycaprolactone Fabricated by Electrospinning”, J. Biomater. Sci. Polymer Edn 17, 969 (2006).
  13. S. Chowdhury, Damon A. Hillman, Shane A. Catledge, Valery V. Konovalov, and Yogesh K. Vohra, “Synthesis of Ultra-Smooth Nanostructured Diamond (USND) Films by Microwave Plasma Chemical Vapor Deposition Using He/H2/CH4/N2 Gas Mixture”, J. Mater. Res. 21, 2675 (2006).
  14. Hyunbin Kim, Renato P. Camata, Sukbin Lee, Gregory S. Rohrer, Anthony D. Rollett, and Yogesh K. Vohra, “Crystallographic Texture in Pulsed Laser Deposited Hydroxyapatite Bioceramic Coatings”, Acta Materialia 55, 131 (2007).
  15. S. Chowdhury, Yogesh K. Vohra, Jack E. Lemons, Masaru Ueno, Junji Ikeda, “Accelerating Aging of Zirconia Femoral Head Implants: Change of Surface Structure and Mechanical Properties”, J. Biomed. Mater. Res., Part B: Applied Biomaterials 81, 486 (2007).
  16. Wei Qiu, Yogesh K. Vohra, and Samuel T. Weir, “Role of Nitrogen in the Homoepitaxial Growth on Diamond Anvils by Microwave Plasma Chemical Vapor Deposition”, J. Mater. Res. 22, 1112 (2007).
  17. Vinoy Thomas, Moncy V. Jose, Bini Mathew, S. Chowdhury, Derrick R. Dean, Yogesh K. Vohra, “Nanostructured Biocomposite Scaffolds Based on Collagen Co-electrospun with Nanohydroxyapatite" Biomacromolecules 8, 631 (2007).
  18. S. A. Catledge, W. C. Clem, N. Shrikishen, S. Chowdhury, A. V. Stanishevsky, M. Koopman, and Y. K. Vohra, “An Electrospun Triphasic Nanofibrous Scaffold for Bone Tissue Engineering”, Biomed. Mater. 2, 142 (2007).
  19. V. Thomas, X. Zhang, S.A. Catledge, and Y.K. Vohra, “Functionally graded electrospun scaffolds with tunable mechanical properties for vascular tissue regeneration”, Biomed. Mater. 2, 224 (2007).
  20. Michael R. Hill, Shane A. Catledge, Valeriy Konovalov , William C. Clem, Shafiul A. Chowdhury , Brandon S. Etheridge, Andrei Stanishevsky , Jack E. Lemons , Yogesh K. Vohra, and Alan W. Eberhardt, “Preliminary tribological evaluation of nanostructured diamond coatings against ultra-high molecular weight polyethylene”, J. Biomed. Mater. Res., Part B: Applied Biomaterials 85B, 140 (2008).
  21. S. Chowdhury, J. Borham, S.A. Catledge, A.W. Eberhardt, P.S. Johnson, Y.K. Vohra, Synthesis and mechanical wear studies of ultra smooth nanostructured diamond (USND) coatings deposited by microwave plasma chemical vapor deposition with He/H2/CH4/N2 mixtures, Diamond Relat. Mater. 17, 419 (2008).
  22. W.C. Clem, S. Chowdhury, S.A. Catledge, J. J. Weimer, F.M. Shaikh, K.M. Hennessy, V.V. Konovalov, M.R. Hill, A.Waterfeld, S.L. Bellis, and Y. K. Vohra, “Mesenchymal Stem Cell Interaction with Ultra Smooth Nanostructured Diamond for Wear Resistant Orthopaedic implants”, Biomaterials 29, 3461 (2008).
  23. Qi Liang, Andrei Stanishevsky, and Yogesh K. Vohra, “Tribological Properties of Undoped and Boron-Doped Nanocrystalline Diamond Films”, Thin Solid Films 517, 800 (2008).
  24. Qi Liang, Joseph G. Harrison, and Yogesh K. Vohra “Modeling of Nitrogen/diborane/methane/hydrogen Plasma for Nanocrystalline Diamond Growth: Comparison with Experimental Data”, Diamond & Related Materials 17, 2067 (2008).
  25. Stanishevsky A, Chowdhury S, Chinoda P, Thomas V (2008) Hydroxyapatite nanoparticle loaded collagen fiber composites: Microstructure and nanoindentation study, J. Biomed. Mater. Res86A, 73-82.
  26. Xing Zhang , Vinoy Thomas, Yogesh K. Vohra, “ In vitro Biodegradation of Designed Tubular Scaffolds of Electrospun Protein/Polyglyconate Blend Fibers”,  J. Biomed. Mater. Res., Part B: Applied Biomaterials 89B, 135 (2009).
  27. Parul Tyagi, Shane A. Catledge, Andrei Stanishevsky, Vinoy Thomas, and Y. K. Vohra, “Nanomechanical Properties of Electrospun Composite Scaffolds Based on Polycaprolactone and Hydroxyapatite”, Journal of Nanoscience and Nanotechnology 9, 4839 (2009).
  28. Jose MV, Thomas V., Johnson, K, Dean DR, Nyairo E (2009) Aligned nanocomposite scaffolds based on PLGA/HAfor bone tissue engineering, Acta Biomater. 5, 305-315.
  29. Jose MV, Thomas V, Dean DR, Nyairo E (2009) Fabication and characteriszation of aligned nanofibrous PLGA/Collagen blends as bone tissue scaffolds Polymer 50, 3778-3785.
  30. Simon CG, Yang Y, Thomas V, Dorsey SM, Morgan AW (2009) Cell interactions on biomaterials gradients and arrays- A Review, Comb. Chem. High Throughput. Screen. 12 (6), 544-553.
  31. Bottino MC, Jose MV, Thomas V, Dean DR, Janowski GM (2009)  Freeze-dried acellular dermal matrix graft: Effects of rehydration on physical, chemical, and mechanical properties, Dent. Mater. 2 5, 1109–1115.
  32. Caracciolo PC, Thomas  V, Vohra YK, Buffa F, Abraham GA (2009) Electrospinning of  novel biodegradable poly(ester urethane)s and poly(ester urethane urea)s for soft-tissue engineering applications J. Mater. Sci. Mater. Med.  DOI 10.1007/s10856-009-3768-3.
  33. Thomas V, Zhang X, Vohra YK (2009) A Biomimetic trilayer tubular scaffolds with spatially designed nanofibers ofelectrospun protein/PDS bio-belnds,  Biotechnol. Bioeng. (Published ahead of printing on 2009 July 2).