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Protein Adhesion on Atmospheric Plasma Deposited Quaternary Ammonium Salt Coatings
Author(s)
Date Issued
2013-03-19
Date Available
2013-11-01T12:22:09Z
Abstract
This study investigates protein adhesion on nm thick helium atmospheric plasma deposited quaternary ammonium salt (QAS) coatings. The adhesion of the proteins BSA, IgG and Fg was evaluated on coated and uncoated silicon wafer substrates. This study was carried out in PBS solution, under flow conditions using ellipsometry. The QAS was found to exhibit a low level of solubility in PBS over time (approx. 2 nm h−1). On addition of both the IgG and Fg proteins, it was found that a protective protein layer of 7 and 2 nm respectively was formed, which prevented further dissolution of the QAS. In contrast the 1 nm thick BSA protein layer, which formed on the QAS, was insufficiently thick to prevent the slow dissolution of the salt. It was concluded that the charge and structure of the protein influences its adhesion on the QAS surface.
Type of Material
Journal Article
Publisher
Wiley Blackwell (John Wiley & Sons)
Journal
Plasma Processes and Polymers
Volume
10
Issue
6
Start Page
526
End Page
534
Copyright (Published Version)
2013 Wiley Blackwell (John Wiley & Sons)
Language
English
Status of Item
Peer reviewed
This item is made available under a Creative Commons License
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Protein adhesion on atmospheric plasma deposited quaternary ammonium done.pdf
Size
3.32 MB
Format
Owning collection
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3
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