Publications and Patents

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 2006 to present:


PJ Jency, V Thomas, M Jayabalan, (2013) Synthesis and Evaluation of CarboxyTerminated Poly (trimethylene propane trifumarate)–Poly (ethylene glycol) as a Biodegradable Mucoadhesive Resin, Advances in Polymer Technology 32 (3). DOI: 10.1002/adv.20200

Sarah Kezar, Haylie Reed, Virginia Aida, Vinoy Thomas, Yogesh Vohra, Candace Floyd (2013) DEVELOPMENT OF AN OBJECTIVE ASSESSMENT SYSTEM OF DORSAL ROOT GANGLION OUTGROWTH, JOURNAL OF NEUROTRAUMA 30 (15), A61-A61.

Reginna E Scarber, Amanee D Salaam, Vinoy Thomas, Gregg M Janowski, Derrick Dean (2013) Direct SolGel Electrospinning of Fibrous Bioglass Scaffolds for Bone Tissue Engineering, Journal of Biomaterials and Tissue Engineering 3 (4), 440-447.

M Ramalingam, MF Young, V Thomas, L Sun, LC Chow, CK Tison, K Chatterjee, WC Miles, CG Simon . (2013) Nanofiber scaffold gradients for interfacial tissue engineering, Journal of biomaterials applications 27 (6), 695-705

Biliyar N Bhat, Dave L Ellis, Vadim Smelyanskiy, Michael Foygel, Aaron Rape, Jogender Singh, Yogesh K Vohra, Vinoy Thomas, Kyle G Otte, Deyu Li (2013) Copper-Multiwall Carbon Nanotubes and Copper-Diamond Composites for Advanced Rocket Engines, NASA Technical Report 2013, April 29.

J. Chen, V. Kozlovskaya, A. Goins, J. Campos-Gomez, M. Saeed, E. Kharlampieva, Biocompatible shaped particles from dried multilayer polymer capsules. Biomacromolecules 2013, DOI: 10.1021/bm4008666.

Y. Wang, V. Kozlovskaya, I. Arcibal, D. Cropek, E. Kharlampieva, Highly swellable ultrathin poly(4-vinylpyridine) multilayer hydrogels with pH-triggered surface wettability. Soft Matter 2013, 9(39), 9420-9429.

M. Petr, E. Kharlampieva, D. Cropek, S. Grimme, On the origin of the major peak cluster spacing in the mass spectra of copolymers. Macromolecules 2013, 46(15), 6233-6242.

V. Kozlovskaya, O. Zavgorodnya, Y. Wang, J. F. Ankner, E. Kharlampieva, Tailoring Architecture of Nanothin Hydrogels: Effect of layering on pH-triggered swelling. ACS Macro Letters 2013, 2, 226-229.

Y. Lu, A. Zhuk, L. Xu, X. Liang, E. Kharlampieva, S. A. Sukhishvili, Tunable pH and temperature response of weak polyelectrolyte brushes: Role of hydrogen-bonding and monomer hydrophobicity. Soft Matter, 2013, 9, 5464-5472


P. V. Bapat, R. Kraft*, and R. P. Camata, “Gas Phase Laser Synthesis of Aggregation-Free, Size-Controlled Hydroxyapatite Nanoparticles,” Journal of Nanoparticle Research 14:1163 (2012); DOI 10.1007/s11051-012-1163-3

Georgiy M Tsoi, Walter Malone*, Walter Uhoya, Jonathan E Mitchell, Yogesh K Vohra, Lowell E Wenger, Athena S Sefat and S T Weir, “Pressure-induced superconductivity in Ba0:5Sr0:5Fe2As2”, J. Phys.: Condens. Matter 24, 495702 (2012).

S.A. Catledge and S. Singh, Strong narrow-band luminescence from silicon-vacancy color centers in spatially localized sub-10 nm nanodiamond , Adv. Sci. Lett. 4, 512-515 (2011).

A. Stanishevsky, C. Styres, H. Yockell-Lelievere, N. Yusuf, Nanostructured Carbon Beads – Properties and Biomedical Applications, J. Nanosci. Nanotechnol. 11, 8705-8711 (2011).

 M.J. Walock, I. Rahil, Y. Zou, L. Imhoff, S.A. Catledge, C. Nouveau, A.V. Stanishevsky, Sputtered tungsten-based ternary and quaternary layers for nanocrystalline diamond deposition, J. Nanosci. Nanotechnol. 12, 4825–4831 (2012).

A.V. Stanishevsky, M. Walock, Y. Zou, L. Imhoff, A. Zairi, C. Nouveau, Growth of WC-Cr-N and WC-Al-N coatings in a RF-magnetron sputtering process, Vacuum (2012) (in press).

Murugan R,  Young M. F, Thomas V., Sun L, Chow L. C, Tison C.K, Chatterjee K, Miles W. C and Simon, C. G. Jr  (2012) Nanofiber Scaffold Gradients for Intefacial Tissue Engineering. J Biomater Applications. doi:10.1177/0885328211423783.

Deshpande H.D, Dean D.R., Thomas V., Clem W., Jose M.V., Nyairo E., Mishra M. Carbon Nanofiber Reinforced Polycaprolactone Fibrous Meshes by Electrostatic Co-spinning. Current Nanoscience (2012) (In press).

Thomas V* and Vohra Y.K,  Functionally Graded and Cell-integrated Nanofibrous Scaffolds for Vascular  Tissue Engineering.  In: Integrated Biomaterials In Tissue Engineering, M. Ramalingam, Z. Haidar, S. Ramakrishna, H. Kobayashi, Y. Haikel (eds). Wiley-Scrinever, 2012.

Thomas V*. , Mathew B., Dean D.R. and Nyairo E.,  Biodegradable Polymeric Nano-biomaterials for Cancer Therapeutic applications.  In: Signaling, Gene Regulation and Cancer  S.R. Singh and M. K. Mishra (eds), NOVA publishers, 2012.

Bottino MC, Vohra YK and Thomas V*, Spatially Designed Nanofibrous Membranes for Periodontal Tissue Regeneration, In: Biomaterials and Stem Cells and Regenerative Medicine M. Ramalingam, J. Best, S. Ramakrishna (eds). CRC press. 2012.

 Catledge S. A.,Thomas V. and Vohra Y. K*. Nanostructured Diamond for Orthopaedic Implants,  In: Diamond Based Materials for Biomedical Applications. R. Narayan (ed). Woodhead Publishing Ltd. 2012.

 Bottino,M.C., Thomas, V., Schmidt, S., Vohra,Y.K., Chu, T.M.G., Kowolik, M.J., Janowski G.M. Recent advances in the development of GTR/GBR membranes for periodontal regeneration—A materials perspective. Dental Materials 28: 703-721 (2012)

Thomas V., Halloran B. A., Ambalavanan N., Catledge S. A., Vohra Y. K. In vitro studies on the effect of particle size on macrophage responses to nanodiamond wear debris.  Acta Biomaterialia 8 (5):1939-47 (2012).


Xing Zhang, Vinoy Thomas, Y. Ma, Susan L. Bellis, and Yogesh K. Vohra, “Engineering an antiplatelet adhesion layer on an electrospun scaffold using porcine endothelial progenitor cells” J. Biomed Mater Res. 97A, 145 (2011).

S.A. Catledge, R. Vaid, P. Diggins, J.J. Weimer, M. Koopman, Y. K. Vohra, “Improved adhesion of ultra-hard carbon films on cobalt-chromium orthopaedic implant alloy”, J. Mater. Sci. Mater. Med. 22, 307 (2011).

Vinoy Thomas, Thomas Donahoe, Elijah Nyairo, Derrick R. Dean, Yogesh K. Vohra, “Electrospinning of Biosyn_-based tubular conduits: Structural, morphological, and mechanical characterizations”, Acta Biomaterialia 7, 2070 (2011).

Leigh Booth, Shane A. Catledge, Dustin Nolen, Raymond G. Thompson, and Yogesh K. Vohra, “Synthesis and Characterization of Multilayered Diamond Coatings for Biomedical Implants”, Materials 4, 857 (2011).

M.C. Phipps, W. C. Clem, S. A. Catledge, Y. Xu, K. M. Hennessy, V. Thomas, M. J. Jablonsky, S. Chowdhury, A. V. Stanishevsky, Y. K. Vohra, and S. L. Bellis, “Mesenchymal stem cell responses to bone-mimetic electrospun matrices composed of polycaprolactone”, collagen I and nanoparticulate hydroxyapatite. PLoS ONE 6(2): e16813. doi:10.1371/journal.pone.0016813 (2011).


Xing Zhang, Vinoy Thomas, Yogesh K. Vohra, “Novel two ply arterial scaffolds of electrospun polyglecaprone/ polycaprolactone/proteins blends”, J. Mater. Sci. Mater. Med. 21, 541 (2010).

Xing Zhang, Vinoy Thomas, Yuanyuan Xu, Susan L. Bellis, and Yogesh K. Vohra, “An in vitro regenerated functional human endothelium on a Nanofibrous electrospun scaffold”, Biomaterials 31, 4376 (2010).

Hyunbin Kim, Renato P. Camata, Shafiul Chowdhury, Yogesh K. Vohra, “In vitro dissolution and mechanical behavior of c-axis preferentially oriented hydroxyapatite thin films fabricated by pulsed laser deposition”, Acta Biomaterialia 6, 3234 (2010).


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).

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).

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.

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.

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.

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.

P. C. Caracciolo, Vinoy Thomas, Yogesh K. Vohra, F. Buffa, and G. A. Abraham, “Electrospinning of Novel Biodegradable Poly(ester urethane)s and Poly(ester urethane urea)s for Soft Tissue Engineering Applications”, J. Mater. Sci.: Mater Med. 20, 2129 (2009).

V. Thomas, X. Zhang, Y. K. Vohra, “ A Biomimetic Trilayer Tubular Scaffolds with Spatially Designed Nano-fibers of Electrospun Protein/PDS Bio-blends”, Biotechnol. Bioeng. 104, 1025 (2009).


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).

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).

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).

Qi Liang, Andrei Stanishevsky, and Yogesh K. Vohra, “Tribological Properties of Undoped and Boron-Doped Nanocrystalline Diamond Films”, Thin Solid Films 517, 800 (2008).

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).

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.


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).

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).

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).

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).

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).

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).


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).

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).

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).

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).

Vinoy Thomas, Derrick R. Dean, and Yogesh K. Vohra, “Nanostructured Biomaterials for Regenerative Medicine”, Current Nanoscience 2, 155 (2006).

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).

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).

 * indicates undergraduate author