Protein−Silicone Interactions: How Compatible Are the Two Species?

Protein-on-silicone and silicone-on-protein films were made by the sequential coating of the human serum albumin (HSA) onto silicone films on glass or vice versa. The silicones used were either trimethylsilyl-terminated poly(dimethylsiloxane) (unfunctionalized PDMS) or (triethoxysilyl)propyl-terminated poly(dimethylsiloxane) (functionalized TES−PDMS). Angular-dependent X-ray photoelectron spectroscopy (AD-XPS) and contact angle measurements …