Journal
THIN SOLID FILMS
Volume 499, Issue 1-2, Pages 213-218Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.tsf.2005.07.048
Keywords
carbohydrate monolayer; hydrogen-terminated silicon; resistant materials for the non-specific adsorption of protein; specific affinity of carbohydrate-protein
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Efficient matrix that resists the nonspecific adsorption of proteins from the contacting phosphate buffer silane (PBS) solution has been explored to fabricate carbohydrate arrays on silicon wafer. p-Vinylbenzyllactonoamide (VLA) was immobilized onto silicon through Si-C bond. The VLA-covered substrate was then photo lithographically micropatterned through a photomask by ultraviolet (UV) irradiation. The VLA-covered regions recognized specifically the lactose-binding lectin in PBS solution. On the other hand, the U-V-irradiated regions, i.e., SiOx surface, prevented the nonspecific adsorption of the lectin from the contacting PBS solution. Several control experiments have demonstrated that the resistant-ability of SiOx surface as the matrix was comparable to the best of known system for resisting the nonspecific adsorption. (c) 2005 Elsevier B.V All rights reserved.
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