Chalcone-analogue fluorescent prfobes for saccharides signaling using the boronic acid group
作者:Nicolas DiCesare、Joseph R Lakowicz
DOI:10.1016/s0040-4039(02)00312-x
日期:2002.4
Two new fluorescent probes based on 1,3-diphenylprop-2-en-1-one and on 1,5-diphenylpenta-2,4-dien-1-one structures are presented. Both probes posses one electron-donating dimethylamino group and one boronic acid group (electron-withdrawing group). The change between the neutral and the anionic form of the boronic acid group induced at high pH and/or in presence of sugar, induces optical changes for
提出了两种新的基于1,3-二苯基丙-2-烯-1-酮和1,5-二苯基戊-2,4-二烯-1-酮结构的荧光探针。两种探针均具有一个供电子二甲基氨基和一个硼酸基团(吸电子基团)。在高pH和/或糖存在下诱导的硼酸基团的中性和阴离子形式之间的变化会引起两个探针的光学变化。提出并讨论了糖检测方面的光谱数据,p K a和不同单糖的解离常数。