Polymer brushes for immobilizing molecules to a surface or substrate having improved stability
申请人:Symyx Technologies, Inc.
公开号:US20030108879A1
公开(公告)日:2003-06-12
Sensors for determining the presence and concentration of biomolecules in a biological sample are provided in the form of polymer brushes, which comprise a substrate having a surface modified with a hydrophobic polymer segment, attached to which is a water-dispersible or water-soluble polymer segment having functional groups that bind probes. The method of synthesis of such sensors preferably includes use of controlled free radical polymerization techniques, which allows for controlled architecture polymers to modify the surface of the substrate, and the use of monomers possessing functional groups which do not require activation prior to probe attachment. In this manner functional groups in the polymer chain are removed from the surface, which allows for solution chemistry to be more realistically reproduced with the benefits of a solid bound probe.
用于确定生物样品中生物分子的存在和浓度的传感器是以聚合物刷的形式提供的,它包括一个表面用疏水聚合物段修饰过的基质,基质上附有水分散或水溶性聚合物段,该聚合物段具有结合探针的官能团。合成这种传感器的方法最好包括使用受控自由基聚合技术,这种技术可使受控结构聚合物对基底表面进行修饰,并使用在探针附着之前不需要活化的具有官能团的单体。通过这种方式,聚合物链中的官能团被从表面移除,从而可以更真实地再现溶液化学性质,并具有固体结合探针的优点。