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Surface modification of poly(ethylene‐co‐vinyl alcohol) (EVA). Part I. Introduction of carboxyl groups and immobilization of collagen

Identifieur interne : 008D85 ( Main/Exploration ); précédent : 008D84; suivant : 008D86

Surface modification of poly(ethylene‐co‐vinyl alcohol) (EVA). Part I. Introduction of carboxyl groups and immobilization of collagen

Auteurs : Kazuaki Matsumura [Japon] ; Suong-Hyu Hyon [Japon] ; Naoki Nakajima [Japon] ; Chunyan Peng [Japon] ; Sadami Tsutsumi [Japon]

Source :

Journal of Biomedical Materials Research [ 0021-9304 ] ; 2000-06-15.

RBID : ISTEX:376B50C7C8A67D35FFAADBCB6D2D393B7A73C62F

Descripteurs français

Wicri :
- topic : Ozone.

English descriptors

Abstract

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. © 2000 John Wiley & Sons, Inc. J Biomed Mater Res, 50, 512–517, 2000.

Url:

https://api.istex.fr/document/376B50C7C8A67D35FFAADBCB6D2D393B7A73C62F/fulltext/pdf

DOI: 10.1002/(SICI)1097-4636(20000615)50:4<512::AID-JBM6>3.0.CO;2-G

Affiliations:

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Le document en format XML

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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Acrylic acid</term>
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<term>Carboxyl groups</term>
<term>Cell culture</term>
<term>Charge distribution</term>
<term>Chemical analysis</term>
<term>Collagen</term>
<term>Collagen immobilization</term>
<term>Collagen solution</term>
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<term>Electron spectroscopy</term>
<term>Error bars</term>
<term>Esca spectra</term>
<term>Eval membranes</term>
<term>Excess amount</term>
<term>Film surface</term>
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<term>Graft polymerization</term>
<term>Grafted</term>
<term>Grafted films</term>
<term>Grafted polymerization</term>
<term>Hdpe</term>
<term>Hdpe films</term>
<term>Hdpe surfaces</term>
<term>Hydroxyl groups</term>
<term>Immobilization</term>
<term>Implant</term>
<term>John wiley sons</term>
<term>Natural tooth</term>
<term>Oral maxillofac implants</term>
<term>Other hand</term>
<term>Ozone</term>
<term>Ozone exposure</term>
<term>Paac</term>
<term>Paac graft polymerization</term>
<term>Periodontal</term>
<term>Periodontal ligament</term>
<term>Periodontal tissue regeneration</term>
<term>Phosphoric acid</term>
<term>Same amounts</term>
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<term>Surface modification</term>
<term>Surface morphology</term>
<term>Test tube</term>
<term>Titanium implants</term>
<term>Water bath</term>
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<term>Charge distribution</term>
<term>Chemical analysis</term>
<term>Collagen</term>
<term>Collagen immobilization</term>
<term>Collagen solution</term>
<term>Different ways</term>
<term>Electron spectroscopy</term>
<term>Error bars</term>
<term>Esca spectra</term>
<term>Eval membranes</term>
<term>Excess amount</term>
<term>Film surface</term>
<term>Graft</term>
<term>Graft polymerization</term>
<term>Grafted</term>
<term>Grafted films</term>
<term>Grafted polymerization</term>
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<term>Hdpe films</term>
<term>Hdpe surfaces</term>
<term>Hydroxyl groups</term>
<term>Immobilization</term>
<term>Implant</term>
<term>John wiley sons</term>
<term>Natural tooth</term>
<term>Oral maxillofac implants</term>
<term>Other hand</term>
<term>Ozone</term>
<term>Ozone exposure</term>
<term>Paac</term>
<term>Paac graft polymerization</term>
<term>Periodontal</term>
<term>Periodontal ligament</term>
<term>Periodontal tissue regeneration</term>
<term>Phosphoric acid</term>
<term>Same amounts</term>
<term>Same manner</term>
<term>Surface modification</term>
<term>Surface morphology</term>
<term>Test tube</term>
<term>Titanium implants</term>
<term>Water bath</term>
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<front><div type="abstract" xml:lang="en">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. © 2000 John Wiley & Sons, Inc. J Biomed Mater Res, 50, 512–517, 2000.</div>
</front>
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Surface modification of poly(ethylene‐co‐vinyl alcohol) (EVA). Part I. Introduction of carboxyl groups and immobilization of collagen

Surface modification of poly(ethylene‐co‐vinyl alcohol) (EVA). Part I. Introduction of carboxyl groups and immobilization of collagen

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri