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Surface Modification Of Polymers With Grafting And Coating Of Silane Hybrids And Their Bioactivity

Published online by Cambridge University Press:  10 February 2011

Masaaki Kubo
Affiliation:
Biomaterials Lab, Faculty of Engineering, Okayama University, Okayama, 700–8530, Japan
Seisuke Takashima
Affiliation:
Co-Operative Research Center, Okayama University, Okayama, 701–1221, Japan
Kanji Tsuru
Affiliation:
Biomaterials Lab, Faculty of Engineering, Okayama University, Okayama, 700–8530, Japan
Satoshi Hayakawa
Affiliation:
Biomaterials Lab, Faculty of Engineering, Okayama University, Okayama, 700–8530, Japan
Akiyoshi Osaka
Affiliation:
Biomaterials Lab, Faculty of Engineering, Okayama University, Okayama, 700–8530, Japan
Chikara Ohtsuki
Affiliation:
Now at Nara Advanced Institute of Science and Technology, Nara, 630–0101, Japan
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Abstract

Hydrated silica rich Si-OH and Si-0- groups serve in a body environment as sites for nucleation of apatite, and are known as an essential chemical species for bioactive materials. Organic polymers having surface modified with the hydrated silica will show bioactivity: bone tissues grow toward the apatite layer and bond to materials. Thus MOPS-M (3-methacryloxypropyltrimethoxysilane) was grafted under emulsion polymerization procedure to high density polyethylene (HDPE), poly (vinyl chloride) (PVC) and polyamide (PA) substrates to examine in vitro deposition of apatite (bioactivity) after soaking in a simulated body fluid (Kokubo solution). Bioactivity was confirmed for the grafted PVC and PA substrates and discussed in terms of contact angle and relative amount of grafted silane molecules.

Type
Research Article
Copyright
Copyright © Materials Research Society 1999

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References

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