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 Expert  721133

Expert in Medical Polymer Sterilization

Available for your Consulting and Expert Witness Needs

North Carolina (NC)
Education Work History Career AccomplishmentsPublicationsConsulting Services Expert Witness Market Research

Summary of Expertise: Listed with other top experts in: 
MEDICAL POLYMER SELECTION; MEDICAL POLYMER STERILIZATION. With knowledge of material selection for medical devices, Expert has specific expertise in selecting materials based on cost, physical properties, radiation or other forms of sterilization, blood and tissue compatibility, permeability, and aging properties.

SURFACE CHEMISTRY; SURFACE MODIFICATION. Expert has extensive experience in surface chemistry and the physics of polymers with a special emphasis on biocompatible coatings, lubricants, low- or high-permeability materials, and methods of surface analysis. He is familiar with ionizing plasma technology, radiation grafting, corona, and polymer coating technology. He can answer questions on blood and tissue compatibility as well as low-permeation plasma deposited coatings, such as silicone dioxide.

GAMMA-RAY STERILIZATION; E-BEAM STERILIZATION; GAMMA-STABLE PLASTIC. Expert has expertise in gamma and e-beam sterilization of medical polymers with a special emphasis on material selection and sterilization of plastics. He has developed methods of stabilizing certain materials to high-energy radiation.

PERMEABLE POLYMER; PERMEABLE PACKAGING MATERIAL; OXYGEN-PERMEABLE POLYMER. Expert has expert knowledge of permeability and diffusion of gases and liquids through polymeric materials. He has worked with methods of increasing or decreasing the rate of permeation through membranes, coatings, and packaging materials.

POLYPROPYLENE MANUFACTURING; POLYPROPYLENE MODIFICATION; POLYPROPYLENE POLYMERIZATION. Expert's polypropylene expertise includes manufacturing, modification, polymerization, material selection, methods of stabilization (including high-energy irradiation, methods of improving clarity, and prevention of toxicity) in medical and related applications.

THERMOPLASTIC ELASTOMER; MEDICAL ELASTOMER. An expert in thermoplastic elastomer technology, Expert has worked with the selection and modification of elastomers for medical use in various tubing and sealing applications. His expertise in this area has led to major cost reductions by replacing thermoset rubbers with new thermoplastic elastomer technology.

METALLOCENE POLYMER TECHNOLOGY. Expert is knowledgeable of the special catalysts for making new and existing polymers better and more cost effective. He has worked with the major polymer producers on identifying product opportunities and specific applications of metallocene polymer technology.

SILICONE; SILICONE-FREE LUBRICANT. Expert has in-depth knowledge of non-toxic silicone and related lubricants for medical devices and needle technology. He has advanced knowledge of silicone-free lubricant technology and methods of application.

INJECTION MOLDING. Familiar with injection molding technology, Expert understands how to improve productivity of thermoplastic polymers in terms of low-cost molding cycles and improved product quality.


gamma-ray sterilization


gamma-stable plastic material


irradiation sterilization


medical elastomer


medical lubricant


medical polymer selection


medical polymer sterilization


oxygen-permeable copolymer


oxygen-permeable polymer


permeable polymer




polypropylene manufacturing


polypropylene modification


polypropylene polymerization


silicone polymer


sterilizable plastic material


surface chemistry


surface modification

Show Secondary and Basic Areas of Expertise
Expert may consult nationally and internationally, and is also local to the following cities: Raleigh, North Carolina;  Greensboro, North Carolina;  Durham, North Carolina;  Winston Salem, North Carolina;  Fayetteville, North Carolina;  Cary, North Carolina;  High Point, North Carolina;  Greenville, North Carolina;  and Rocky Mount, North Carolina.

Often requested
with this expert:

Biomedical Material Technology
Sterilization, Biomaterials, Tissue Banking, Medical...
Olefin Polyolefins Catalysis
Silicone Medical Devices and Implants, Product Development,...

Year   Degree   Subject   Institution  
1970   PhD   Fiber and Polymer Science   North Carolina State University  
1967   MS   Textile Chemistry   North Carolina State University  
1964   BS   Textile Chemistry   North Carolina State University  

Work History:
Years   Employer   Title  

1997 to





1990 to 1997


Becton Dickinson Co.




1974 to 1990


Becton Dickinson Co.


Director, Materials Research


1962 to 1974


Research Triangle Institute


Senior Chemist, Camille Dreyfus Laboratory


Career Accomplishments:

He is a member of the American Chemical Society and the Society of Plastics and Engineering.


Expert was named a Becton Dickinson Fellow in Polymer Technology, the highest worldwide company honor.

Publications and Patents Summary

Expert is the author of over 50 patents and over 130 scientific publications on polymers and related technologies.

Selected Publications and Publishers  
 - International Atomic Energy Agency. Vienna.  
 - Elastomerics.  
 - International Atomic Energy Agency. Colombo, Sri Lanka.  

Consulting Services:
Recent Client Requests:
  • Expert in Polycarbon Sterlization Failure Mode to assist with failure analysis.
  • Catheter expert needed for consulting regarding permeation testing of a catheter sleeving.
  • Expert in surface friction reduction of polymer surface.
  • Expert in polymer chemistry sterilization for consulting on sterilization methods for unique medical device polymer.
  • Expert for consulting on Aging of silicone tube.
  • Expert for consulting on Water Swellable TPE.
  • Polypropylene and expert for consulting on Alternative grade of Polyproprylene.
  • Expert in sterilization methods for custom polymers for consulting on Polymer Sterilizing of Custom made medical devices from rapid manufacturing.
  • Materials science or surface science expert for consulting on plasma surface treatment.
  • Gamma sterilization expert for consulting on gamma stability of PBT.
  • Expert in autoclaves for consulting on material selection & product design for the purpose of passing 500+ cycles.
  • Expert in silicone elastomers for consulting on effects due gamma PDMS radiation.
  • Expert in effects of gamma sterilization in polymers and elastomers for consulting on syringe pluger seal analysis.
  • EO sterilization expert specialist for 3rd party review of facilty.
  • Expert in non-woven absorbent material for consulting on a new dental application.
Click the green button above to contact Expert for a free initial screening call regarding your expert consulting needs.  Expert is available for consulting to corporate, legal and government clients.  Remember, your initial screening call to speak with Expert is free.

Expert Witness:
Expert Witness Experience Summary:
Expert eliminated a costly lawsuit on behalf of a polymer supplier in a case where a customer blamed the failure of a product on resin.

Recent Litigation Client Requests:
  • Biomedical expert for consulting on transvaginal mesh and useof polypropylene.
Click the green button above to contact Expert for a free initial screening call regarding expert testimony, litigation consulting and support, forensic services, or any related expert witness services.  A few litigation needs include product liability, personal injury, economic loss, intellectual property (patent, trademark, trade secret, copyright), and insurance matters.  Remember, your initial screening call to speak with Expert is free.

International Experience:
He has been responsible for the worldwide interaction with the polymer industry and polymer-related business.

Language Skills:
Foreign Language  

Market Research:
Working with focus groups to obtain input, Expert has assisted in identifying attributes of new materials, matching them with market needs and new products. Expert has developed and marketed a high-clarity centrifuge tube that eliminated the need to transfer tube contents to a clear tube. The market share of this product doubled in six months. Expert's efforts on this project moved market share from 16% to 70%.

Click the green button above to contact Expert for a free initial screening call regarding your marketing research, industry research, and company research needs.  For research needs involving multiple experts or secondary research, a Research Director can be assigned to coordinate the work into a custom report for you as a potentially quicker and more cost effective alternative to doing this work yourself or hiring a boutique consultancy.  Remember, your initial screening call to speak with Expert is free.

Additional Skills and Services:

Expert has been involved in teaching polymer science at North Carolina State University for 27 years. He also teaches biopolymer technology at Duke University.


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