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REVISTA DE CHIMIE
Cite as: Rev. Chim.
https://doi.org/10.37358/Rev.Chim.1949

OSIM Nr. R102355
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Revista de Chimie (Rev. Chim.), Year 2015, Volume 66, Issue 12,





MATEI A. Ionescu, CRISTIAN IONESCU, ROBERT CATALIN ciocoiu, ION CIUCA
Parylene-N a Better Candidate for Medical Substrate Coating than Parylene-C

Abstract:

The biomaterial - tissue interface plays a key role in implant success. The advantage of using parylene-C a class VI FDA approved polymer for implants is well known. Parylene-N and parylene-C thin films deposited via polymer vapor deposition (PVD) on Si(111) were investigated by atomic force microscopy (AFM) and scanning electron microscopy (SEM). The surface of parylene - C is smooth, while for parylene - N bundles of fibrils are clearly observed by SEM. XRD showed that parylene-N is more packed than parylene-C thus should withstand better to moisture. The kinetics of the two is different; parylene-C has a greater deposition rate than parylene-N but the last one has a greater penetration to small crevices than parylene-C. Therefore we hypothesize that parylene-N could be more suitable as protective coating for medical instruments (not for implantable devices though) than parylene-C. Keywords: Parylene - N, Parylene - C, PVD, AFM, SEM, XRD

Issue: 2015, Volume 66, Issue 12
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