| Detection of peroxy species in ultra-high-molecular-weight polyethylene by Raman spectroscopy. | |
| | |
MedLine Citation:
|
PMID: 9061182 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
Samples of gamma-sterilized ultra-high-molecular-weight polyethylene (UHMWPE) have been examined using infrared and Raman spectroscopies. Infrared spectra of microtomed sections of a thick segment of material exhibited carbonyl bands whose intensity was consistent with published data. Raman spectroscopy has been used for the first time to detect oxidized precursors to the commonly found carbonyl species. Gamma-sterilized plates examined as soon as possible after sterilization exhibited bands consistent with epoxide, alcohol and three different peroxy-containing species. The detection of these species in irradiated UHMWPE is reported for the first time and demonstrates that oxidation of this material proceeds via a gamma-induced free radical mechanism, as has been widely assumed. |
| | |
Authors:
|
D H Chenery |
Publication Detail:
|
Type: Journal Article |
Journal Detail:
|
Title: Biomaterials Volume: 18 ISSN: 0142-9612 ISO Abbreviation: Biomaterials Publication Date: 1997 Mar |
Date Detail:
|
Created Date: 1997-06-13 Completed Date: 1997-06-13 Revised Date: 2001-11-28 |
Medline Journal Info:
|
Nlm Unique ID: 8100316 Medline TA: Biomaterials Country: ENGLAND |
Other Details:
|
Languages: eng Pagination: 415-9 Citation Subset: IM |
Affiliation:
|
Smith & Nephew Group Research Centre, York Science Park, Heslington, UK. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Gamma Rays Molecular Weight Oxidation-Reduction Peroxides / analysis* Polyethylenes / analysis*, chemistry*, radiation effects Polypropylenes / analysis*, chemistry*, radiation effects Spectrophotometry, Infrared Spectrum Analysis, Raman |
| Chemical | |
Reg. No./Substance:
|
0/Peroxides; 0/Plastipore; 0/Polyethylenes; 0/Polypropylenes |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Surface plasmon resonance for real time in situ analysis of protein adsorption to polymer surfaces.
Next Document: Fibronectin exposes different domains after adsorption to a heparinized and an unheparinized poly(vi...