A rhodamine-based sensor RB-S2 was designed and synthesized by combination of the thiospirolacton chromophore and the thiophen ring block with high affinity to Hg2+. Probe RB-S2 exhibits high selectivity and excellent sensitivity in both absorbance and fluorescence detection of Hg2+ in aqueous solution. In addition, fluorescent imaging of Hg2+ in MCF-7 cells is also successfully demonstrated.
通过
硫代
螺内酯发色团和对Hg2+具有高亲和力的
噻吩环块的组合,设计并合成了基于
罗丹明的传感器RB-S2。探针 RB-S2 在
水溶液中 Hg2+ 的吸光度和荧光检测中表现出高选择性和优异的灵敏度。此外,还成功证明了 MCF-7 细胞中 Hg2+ 的
荧光成像。