Abstract
A coat to fit the body: Although protein adsorption onto surfaces is a complicated process, sum-frequency generation (SFG) spectroscopy probes the interfacial water structure around a silica surface as a model protein (bovine serum albumin, BSA) adsorbs onto it from solution. At pH 8.0, the attenuated SFG intensity after BSA adsorption indicates that interfacial water molecules are less ordered due to a reduction in surface ξ-potential. The SFG spectrum shows the C−O stretching vibrations subject to stronger (≈3200 cm−1) and weaker (3200 cm−1) hydrogen bonds Supporting information for this article is available on the WWW under http://www.chemphyschem.com or from the author. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.
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