申请人:Huang Wenxi
公开号:US20060183863A1
公开(公告)日:2006-08-17
Zwitterionic polymers bearing positive and negative charges are readily prepared from easily accessible precursors. The polymers show enhanced binding affinities for analytes under high salt conditions, compared to similar polymers bearing a charge of a single polarity. The polymers can also include an energy absorbing moiety for use in matrix assisted laser desorption/ionization mass spectrometry. The polymer can also include a photo-curable group, which can be used to form cross-links within the bulk polymer or between the polymer and a surface functionalized with a polymerizable moiety. The polymers are incorporated into devices of use for the analysis, capture, separation, or purification of an analyte. In an exemplary embodiment, the invention provides a substrate coated with a polymer of the invention, the substrate being adapted for use as a probe for a mass spectrometer.
带正负电荷的离子聚合物可以从易于获取的前体中轻松制备。与带单极性电荷的类似聚合物相比,这些聚合物在高盐条件下对分析物的结合亲和力增强。聚合物还可以包含能量吸收基团,用于基质辅助激光解析/电离质谱。聚合物还可以包含光固化基团,可用于在体积聚合物内或在具有可聚合基团的表面与聚合物之间形成交联。这些聚合物被纳入用于分析、捕获、分离或纯化分析物的设备中。在一个示例实施例中,本发明提供了一种涂有本发明聚合物的基底,该基底适用于作为质谱仪的探针。