Zinc(II)-Dipicolylamine-Functionalized Polydiacetylene-Liposome Microarray: A Selective and Sensitive Sensing Platform for Pyrophosphate Ions
作者:Kyung Mi Kim、Dong Ju Oh、Kyo Han Ahn
DOI:10.1002/asia.201000621
日期:2011.1.3
plate), has led to a microarray chip that selectively detects pyrophosphate, an important biomarker, over competing anions, such as phosphate and adenosine triphosphate, with nanomolar sensitivity. The chip‐based assay shows advantages, such as high specificity and sensitivity, over solution‐based assays that use the same liposomes, and over known homogeneous molecular sensing systems.
首次由刺激响应性聚合的聚(二乙炔)脂质体构建了用于荧光检测水性介质中含磷酸盐的分析物的微阵列芯片分析系统。脂质体成分的正确组合(用于磷酸结合的Zn II-二甲基吡啶胺和用于将脂质体锚定在醛衍生的玻璃板上的胺封端的成分)的正确组合已导致微阵列芯片在竞争中脱颖而出,可选择性地检测重要的生物标志物焦磷酸盐。阴离子,例如纳摩尔浓度的磷酸根和三磷酸腺苷。与使用相同脂质体的基于溶液的分析以及已知的均相分子传感系统相比,基于芯片的分析显示出诸如高特异性和灵敏度等优势。