Eur. Phys. J. Appl. Phys.
Volume 61, Number 1, January 2013
|Number of page(s)||6|
|Section||Plasma, Discharges and Processes|
|Published online||25 January 2013|
Surface modification of PET polymers by using atmospheric-pressure air brush-shape plasma for biomedical applications
School of Physics and Materials Engineering, Dalian Nationalities University, Dalian 116600, P.R. China
2 School of Science, Changchun University of Science and Technology, Changchun, Jilin 130022, P.R. China
a e-mail: firstname.lastname@example.org
Revised: 15 October 2012
Accepted: 14 November 2012
Published online: 25 January 2013
In this study, we report a method to generate a reliable and homogeneous brush-shape air plasma plume at atmospheric pressure for surface modification of PET polymers and biomedical applications. The room-temperature air plasma plume consists of well-aligned and stable microplasma jets formed in the vicinity of the ends of hollow optical fibers at atmospheric pressure. This plasma plume may lead to the uniform and large-area surface modification of PET polymers. The plasma plume may efficiently prevent the heat-sensitive polymers from being damaged and significantly affect the surface properties of treated polymers, such as surface chemical compositions, hydrophobicity and biocompatibility. Compared to a high density of blood platelets adhering onto the untreated PET sample, no adhesion of blood platelets is observed on the plasma-activated PET sample due to the surface functionalization. The reaction processes of plasma-activated species at the surface of treated polymers are discussed based on the obtained experimental results.
© EDP Sciences, 2013
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