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Stephen K. Hunter

2013

Polyurethanes

Articles 1 - 3 of 3

Full-Text Articles in Medicine and Health Sciences

Molecular Weight Characterization Of Pre- And Postimplant Artificial Heart Polyurethane Materials., Stephen Hunter, D Gregonis, D Colman, J Andrade, T Kessler Jul 2013

Molecular Weight Characterization Of Pre- And Postimplant Artificial Heart Polyurethane Materials., Stephen Hunter, D Gregonis, D Colman, J Andrade, T Kessler

Stephen K. Hunter

No abstract provided.


The Gamete And Embryo Compatibility Of Various Synthetic Polymers., Stephen Hunter, J. Scott, D. Hull, R. Urry Jul 2013

The Gamete And Embryo Compatibility Of Various Synthetic Polymers., Stephen Hunter, J. Scott, D. Hull, R. Urry

Stephen K. Hunter

Several popular and well-characterized polymeric materials were evaluated for their biocompatibility toward the cells unique to reproduction. To accomplish these studies, several in vitro tests were developed that evaluated biocompatibility between the polymers and spermatozoa, ova, and embryos. The data indicated significant differences between the materials with respect to their biocompatibility toward sperm motility, the sperm's ability to penetrate zona-free hamster eggs, and the ability of two-cell mouse embryos to divide. Polytetrafluoroethylene (PTFE-Teflon; PTFE, Chemplast Inc., Wayne, NJ), polyethylene glycol (PEG), and polyhydroxyethyl methacrylate (PHEMA) appear to be the most inert of the materials studied. Polyvinyl chloride (PVC; Tygon-Norton, Akron, …


Surface Modification Of Polyurethane To Promote Long-Term Patency Of Peritoneal Access Devices., Stephen Hunter, D. Gregonis, D. Coleman, B. Hanover, R. Stephen, S. Jacobsen Jul 2013

Surface Modification Of Polyurethane To Promote Long-Term Patency Of Peritoneal Access Devices., Stephen Hunter, D. Gregonis, D. Coleman, B. Hanover, R. Stephen, S. Jacobsen

Stephen K. Hunter

No abstract provided.