Preparation and characterization of 3-(triethoxysilyl) propyl isocyanate self-assembled monolayer on surface of chip  

作　　者：XIE Yao GENG LiNa QU Feng LUO AiQin DENG YuLint 

机构地区：[1]School of Life Science and Technology, Beijing Institute of Technology, Beijing 100081, China

出　　处：《Chinese Science Bulletin》2009年第5期738-742,共5页

基　　金：Supported by the National Natural Science Foundation of China (Grant No. 20435020, 20275005 and 20705005)

摘　　要：Monolayer of 3-(triethoxysilyl) propyl isocyanate was prepared on the slide by self-assembled tech-nique. X-ray photoelectron spectroscopy (XPS) was employed to analyze the elementary composition of the film. Contact angle of distilled water was measured to characterize the surface state. It was shown that 3-(triethoxysilyl) propyl isocyanate had been successfully assembled on the slide. The in-crease of contact angle to 80° demonstrated that the hydrophobicity of the surface of chip was in-creased significantly. Moreover, further self-assembly of bovine serum albumin (BSA) on 3-(trietho- xysilyl) propyl isocyanate was also carried out with the advantages such as simple and convenient preparation. Therefore, the potential of broader applications in the modification of micro-channel in the μ-TAS system, the immobilization of protein or peptide and the surface modification of materials are all expectative.Monolayer of 3-（triethoxysilyl） propyl isocyanate was prepared on the slide by self-assembled technique. X-ray photoelectron spectroscopy （XPS） was employed to analyze the elementary composition of the film. Contact angle of distilled water was measured to characterize the surface state. It was shown that 3-（triethoxysilyl） propyl isocyanate had been successfully assembled on the slide. The increase of contact angle to 80° demonstrated that the hydrophobicity of the surface of chip was increased significantly. Moreover, further self-assembly of bovine serum albumin （BSA） on 3-（triethoxysilyl） propyl isocyanate was also carried out with the advantages such as simple and convenient preparation. Therefore, the potential of broader applications in the modification of micro-channel in the μ-TAS system, the immobilization of protein or peptide and the surface modification of materials are all expectative.

关 键 词：三乙氧基(3-异氰酸丙基)硅 自组装单分子膜 共价健 制备 

分 类 号：TB3[一般工业技术—材料科学与工程]