Nanoscale Biomolecular Structures on Self-Assembled Monolayers Generated from Modular Pegylated Disulfides
作者:Lu Shin Wong、Stefan J. Janusz、Shuqing Sun、Graham J. Leggett、Jason Micklefield
DOI:10.1002/chem.200902439
日期:2010.10.25
that uses modular building blocks to prepare symmetric oligo(ethylene glycol)‐terminated disulfides with a variety of lengths and terminal functionalities. The modular disulfides, composed of alkyl amino groups linked by an amide group to oligoethylene chains were used to generate self‐assembled monolayers (SAMs), which were characterised to determine their applicability for biomolecular applications
已开发出一种固相合成策略,该策略使用模块化构件来制备具有各种长度和末端官能度的对称寡聚(乙二醇)末端的二硫化物。模块化的二硫化物由酰胺基连接至寡乙烯链的烷基氨基组成,用于生成自组装单分子膜(SAMs),其特征在于可确定其在生物分子应用中的适用性。从这些分子获得的SAM的X射线光电子能谱(XPS)表现出对16-十六烷硫醇置换的稳定性提高,而用羟基封端的低聚亚乙基二硫化物制备的SAM的表面等离子体共振(SPR)分析显示对非特异性的抗性相同与11-巯基十一烷基三(乙二醇)相比,蛋白质吸附更强。由这些吸附物制得的SAM可以通过扫描近场光刻(SNP)进行纳米级图案化,从而促进了纳米级图案化,蛋白质功能化表面的制造。这样的SAM可以被进一步开发用于生物纳米技术应用,例如纳米级生物阵列和传感器装置的制造。