A sensor for the detection or measurement of a carbohydrate analyte in fluid comprises components of a competitive binding assay the readout of which is a detectable or measurable optical signal retained by a material that permits diffusion of the analyte but not the assay components, the assay components comprising: a carbohydrate binding molecule labelled with one of a proximity based signal generating/modulating moiety pair; and a carbohydrate analogue capable of competing with the analyte for binding to the carbohydrate binding molecule, the carbohydrate analogue being a flexible water-soluble polymer comprising: polymerized or co-polymerised residues of monomer units, the monomer unit residues bearing pendant carbohydrate or carbohydrate mimetic moieties and pendant moieties which are the other of the proximity based signal generating/modulating moiety pair.
一种用于检测或测量液体中
碳水化合物分析物的传感器,包括竞争性结合测定的组分,其读数是一种可检测或可测量的光学信号,由一种允许分析物扩散但不允许测定组分扩散的材料保留,该测定组分包括:标记有接近基于信号产生/调制的配对的
碳水化合物结合分子;以及一种
碳水化合物类似物,能够与分析物竞争结合到
碳水化合物结合分子上,该
碳水化合物类似物是一种灵活的
水溶性聚合物,包括:单体单元的聚合或共聚残基,该单体单元残基带有挂链的
碳水化合物或类似
碳水化合物的基团和挂链基团,这些挂链基团是接近基于信号产生/调制的配对中的另一个基团。