科研之友
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摘要
Peptide adhesion on semiconductors is quantitatively investigated by atomic force microscopy. A selected 12-mer peptide is reproducibly found to adhere to various III-V and group-IV semiconductor surfaces in a substrate-specific way. The observed succession Al0.98Ga0.02As, Si, Ge, InP, GaP, GaAs in terms of increasing peptide adhesion coefficients is qualitatively explained by the substrate electronegativity and the acidity of the amino acid side chains. It is shown that peptide adhesion is strongly dependent on the amino acid sequence.
- 出版日期2004-11
