Fluorine-Based Plasma Treatment of Biocompatible Silicone Elastomer: The Effect of Temperature on Etch Rate and Surface Properties

This paper describes F‐based dry etching and resulting surface properties of biocompatible silicone elastomer. The etch rate of polysiloxane and surface morphology was found to be highly temperature dependent. An increase in temperature results in a significantly higher etch rate and a lower surface...

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Bibliographic Details
Published in:Plasma processes and polymers 2008-04, Vol.5 (3), p.246-255
Main Authors: Szmigiel, Dariusz, Hibert, Cyrille, Bertsch, Arnaud, Pamuła, Elżbieta, Domański, Krzysztof, Grabiec, Piotr, Prokaryn, Piotr, Ścisłowska-Czarnecka, Anna, Płytycz, Barbara
Format: Article
Language:English
Subjects:
Acceptability
Applied sciences
Biocompatibility
Coating, metallization, dyeing
coatings for medical implants
cytotoxicity
Elastomers
Etching
Exact sciences and technology
Machinery and processing
plasma etching
Plastics
Polymer industry, paints, wood
polysiloxane
Polysiloxanes
silicone rubber
Silicones
surface modification
Surface properties
Surface roughness
Technology of polymers
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Summary:This paper describes F‐based dry etching and resulting surface properties of biocompatible silicone elastomer. The etch rate of polysiloxane and surface morphology was found to be highly temperature dependent. An increase in temperature results in a significantly higher etch rate and a lower surface roughness. Possible mechanisms of the etching process and the roughness formation on an elastomer surface are discussed. The polysiloxane surface was proved to have hydrophobic characteristics both prior to and after plasma exposure. The results of the preliminary cytotoxicity study are very promising: cell viability on a raw and plasma treated polysiloxane was found to be very high and comparable to control. Due to the acceptable etch rate and absence of toxic contaminations, a F‐containing plasma is considered an excellent method for microprocessing of silicone elastomers intended for biomedical applications.
ISSN:1612-8850
1612-8869
1612-8869
DOI:10.1002/ppap.200700130