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Dr. Roberto S. Benson

Professor and Associate Head

Ph.D., Florida State University: Biomedical Polymeric Materials.  Surface Modification of Polymers. 

Brief Bio

Dr. Benson earned his bachelor’s degree in Chemistry from the Lewis University in 1972, and his Ph.D. in Physical Chemistry (Polymers) from the Florida State University in 1978.  His dissertation research was entitled “Thermodynamic and Morphological Properties of Bulk and Solution Crystallized Ethylene-Butene Copolymer Fractions”.   Dr. Benson received Post-doctoral Training in Biomedical Engineering at the University of Utah in the Biomedical Engineering Center for Polymer Implants.   During the period of   1979  – 1983 he was Research Assistant Professor of Materials Science and Engineering and Adjunct Assistant professor of Bioengineering at the University of Utah.  In 1984 he became Director of Research at Vascular International Corporation in Salt Lake City, Utah.  In 1986 he joined the Materials Science and Engineering Department at the University of Tennessee.  Since joining UT his research has focus on the study of the chemistry, biological response, and morphological changes associated with surface modification of polymeric systems.  Analysis and interpretation of the various molecular processes associated with degradation.  Dr Benson has authored or co-authored 100 technical papers, edited one book and has contributed to over 75 (20 invited) technical presentations at national and international conferences.

Research Areas

The study of the chemistry, biological response, and morphological changes associated with surface modification of polymeric systems.  Analysis and interpretation of the various molecular processes associated with degradation.

Selected Awards and Honors

2004 Allen & Hoshall Engineering Faculty Award
2004 Exemplary Mentor Award UTK EAP Program
2000 Celanese Outstanding Faculty Award

Selected Publications

S. A. Hutchens, R. S. Benson, B. R. Evans, and H. M. O’Neill, “Biomimetic Synthesis of Calcium-Deficient Hydroxyapatite in a Natural Hydrogel” Biomaterials 27,4661-4670, 2006

C. P. Stephens, R. S. Benson, Ma. Esther Martinez-Pardo, E. D. Barker, J. B. Walker, T. P. Stephens, The effect of dose rate on the crystalline lamellar thickness distribution in gamma-radiation of UHMWPE, Nuclear Instruments and Methods in Physics Research B 236, 540-545 (2005)

C. P. Stephens, R. S. Benson and M. Chipara, Radiation Induced Modifications in Ultra High Molecular Weight Polyethylene, Surface and Coating Technology, 201, 8230 – 8236 (2007)

A. R. Adhikari, H. BakhruP. M. Ajayan,  R.S. Benson, M. Chipara, Electron Spin Resonance Investigations on Ion beam Irradiated Single-wall Carbon Nanotubes, accepted for publication inNuclear Instruments and Methods in Physics Research (2007)

Selected Patents

Stephens, C.P. and R.S. Benson, Provisional Patent 60/655,177: Non-Spherical Freestanding Polymeric Nano- and Microstructures, in USPTO. 2005: USA.

Contact Dr. Benson

404 Ferris Hall
Department of Materials Science and Engineering
University of Tennessee
Knoxville, TN 37996-2100
Tel: (865) 974-5347

Email: rbenson1@utk.edu


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