Materials Specificity and Directed Assembly of a Gold‐Binding Peptide
作者： Xiaorong Xiong , Turgay Kacar , Babak A. Parviz , Mehmet Sarikaya , Candan Tamerler
关键词: Peptide binding 、 Materials science 、 Adsorption 、 Nanobiotechnology 、 Peptide 、 Quartz crystal microbalance 、 Platinum 、 Chemical engineering 、 Nanotechnology 、 Substrate (chemistry) 、 Noble metal
摘要: Adsorption studies of a genetically engineered gold-binding peptide, GBP1, were carried out using quartz-crystal microbalance (QCM) to quantify its molecular affinity noble metals. The peptide showed higher adsorption onto and lower desorption from gold surface compared platinum substrate. material specificity, that is, the preferential adsorption, GBP1 was also demonstrated micropatterned on silicon wafer containing native oxide. biotinylated three-repeat units preferentially adsorbed regions delineated streptavidin-conjugated quantum dots (SAQDs). These experiments not only demonstrate an inorganic-binding could adsorb metal (Au) rather than oxide (SiO2) but one over another (Pt). This result shows utility as erector in directed immobilization nanoscale hybrid entity (SAQDs) selected fairly complex substrate (Au Pt silica). selective controlled peptides may have significant implications nano- nanobiotechnology, where they be tailored for specific use development self-assembled systems.
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