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Fabrication of micropatterns on polypropylene films via plasma pretreatment combined with UV-initiated graft polymerization.

Authors :
Jiang, Liu
Qian, Huaming
Chen, Gang
Li, Chunyan
Yan, Guangjun
Luo, Yanling
Liu, Peng
Chen, Yashao
Source :
Journal of Biomaterials Applications; May2017, Vol. 31 Issue 10, p1346-1357, 12p
Publication Year :
2017

Abstract

In this study, micropatterns on polypropylene films were fabricated via plasma pretreatment and UV-initiated graft polymerization. Firstly, radio-frequency plasma, which does not significantly influence bulk attributes of substrates due to limited penetration depth, was utilized to activate polypropylene films. Then, different sizes of micropatterns of poly(hydroxyethyl methacrylate) (PHEMA) were fabricated on the polypropylene films via UV-initiated graft polymerization of hydroxyethyl methacrylate by using photo-masks. Scanning electron microscopy, atomic force microscopy, X-ray photoelectron spectroscopy, and contact angle (CA) were employed to characterize changes of pristine polypropylene films and modified ones in surface morphology, roughness, hydrophilicity, free energy and the surface chemical composition. All of these confirmed the successful grafting of different sizes of PHEMA micropatterns on the polypropylene surface. Furthermore, the influence of PHEMA micropatterns on cell proliferation and cytotoxicity was evaluated in vitro. Analysis of cell behaviour indicated that PHEMA micropatterns of the appropriate size can promote cellular adhesion and proliferation, and the PHEMA-micropatterned polypropylene films had good biocompatibility. The approach presented here provides an alternative to synthesize on the surface of polypropylene films’ micropatterns with the aim of using them in a diverse array of applications. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
08853282
Volume :
31
Issue :
10
Database :
Complementary Index
Journal :
Journal of Biomaterials Applications
Publication Type :
Academic Journal
Accession number :
123134543
Full Text :
https://doi.org/10.1177/0885328217707100