PMID- 10756309 OWN - NLM STAT- MEDLINE DCOM- 20000823 LR - 20220408 IS - 0021-9304 (Print) IS - 0021-9304 (Linking) VI - 50 IP - 4 DP - 2000 Jun 15 TI - Surface modification of poly(ethylene-co-vinyl alcohol) (EVA). Part I. Introduction of carboxyl groups and immobilization of collagen. PG - 512-7 AB - To enhance the surface biocompatibility of poly(ethylene-co-vinyl alcohol) (EVA) and high-density polyethylene (HDPE), carboxyl groups were introduced by ozone exposure. Type I collagen was immobilized onto the surface through polyion complexing. The carboxyl groups on the EVA were characterized by electron spectroscopy for chemical analysis and neutralization. The amounts of the carboxylic group and collagen increased with increases in time and temperature of exposure. Water-soluble fragments were produced by ozone exposure to EVA, and they acted as collagen crosslinkers. The differences in charge distribution of carboxyl groups affected the amount of collagen immobilization. Graft polymerization of acrylic acid was also carried out onto EVA and HDPE surfaces. The amount of collagen immobilized by graft polymerization was much higher than that by ozone exposure despite the introduction of almost the same amounts of carboxylic groups. It was suggested that the negative charge distribution influences the amount of collagen immobilized onto films. CI - Copyright 2000 John Wiley & Sons, Inc. FAU - Matsumura, K AU - Matsumura K AD - Institute for Frontier Medical Sciences, Kyoto University, Shogoin, Sakyo-Ku, Kyoto 606-8507, Japan. FAU - Hyon, S H AU - Hyon SH FAU - Nakajima, N AU - Nakajima N FAU - Peng, C AU - Peng C FAU - Tsutsumi, S AU - Tsutsumi S LA - eng PT - Journal Article PL - United States TA - J Biomed Mater Res JT - Journal of biomedical materials research JID - 0112726 RN - 0 (Biocompatible Materials) RN - 0 (Polyvinyls) RN - 25067-34-9 (ethylene-vinyl alcohol copolymer) RN - 66H7ZZK23N (Ozone) RN - 9002-88-4 (Polyethylene) RN - 9007-34-5 (Collagen) RN - D1JT611TNE (Titanium) SB - IM MH - *Biocompatible Materials MH - *Collagen MH - Ozone MH - *Polyethylene MH - *Polyvinyls MH - Protein Binding MH - Surface Properties MH - Titanium EDAT- 2000/04/11 09:00 MHDA- 2000/08/29 11:01 CRDT- 2000/04/11 09:00 PHST- 2000/04/11 09:00 [pubmed] PHST- 2000/08/29 11:01 [medline] PHST- 2000/04/11 09:00 [entrez] AID - 10.1002/(SICI)1097-4636(20000615)50:4<512::AID-JBM6>3.0.CO;2-G [pii] AID - 10.1002/(sici)1097-4636(20000615)50:4<512::aid-jbm6>3.0.co;2-g [doi] PST - ppublish SO - J Biomed Mater Res. 2000 Jun 15;50(4):512-7. doi: 10.1002/(sici)1097-4636(20000615)50:4<512::aid-jbm6>3.0.co;2-g.