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.

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 (2008 May 17) PMID 18490051.