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Biomimetic apatite formation on polyethylene photografted with vinyltrimethoxysilane and hydrolyzed

Paper ID Volume ID Publish Year Pages File Format Full-Text
12965 823 2001 6 PDF Available
Title
Biomimetic apatite formation on polyethylene photografted with vinyltrimethoxysilane and hydrolyzed
Abstract

A photografting technique to produce functional groups of silanol able to induce apatite nucleation was attempted on polyethylene substrate for biomimetic formation of bone-mineral-like apatite layer on its surface. The polyethylene surface was subjected to vapor-phase photografting of vinyltrimethoxysilane and subsequently to hydrolysis. The photografting formed methoxysilyl groups on the polyethylene substrate, which was changed into silanol groups successively by the hydrolysis in a hydrochloric solution. The polyethylene modified in this way formed a dense and homogeneous bone-mineral-like apatite layer in a solution with ion concentrations 1.5 times that of human blood plasma. This result indicates that the biomimetic process in combination with a polymeric grafting technique might provide a homogeneous bone-mineral-like apatite coating even on polymer fibers to be woven into an apatite–polymer composite with three-dimensional structure analogous to that of natural bone.

Keywords
Biomimetic process; Polyethylene; Photografting; Silanol (Si–OH) groups; Apatite; Composite
First Page Preview
Biomimetic apatite formation on polyethylene photografted with vinyltrimethoxysilane and hydrolyzed
Publisher
Database: Elsevier - ScienceDirect
Journal: Biomaterials - Volume 22, Issue 18, September 2001, Pages 2489–2494
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering