Iron(III)-Selective Chelation-Enhanced Fluorescence Sensing for In Vivo Imaging Applications
作者:Lin E. Guo、Xin Yi Liu、Huan Wang、Qiu Ling Chen、Guang Ke Wang、Kaijun Luo、Qi Li Mi、Ying Zhou、Jun Feng Zhang
DOI:10.1002/asia.201500415
日期:2015.9
A “turn‐on” pattern Fe3+‐selective fluorescent sensor was synthesized and characterized that showed high fluorescence discrimination of Fe3+ over Fe2+ and other tested ions. With a 62‐fold fluorescence enhancement towards Fe3+, the probe was employed to detect Fe3+ in vivo in HeLa cells and Caenorhabditis elegans, and it was also successfully used to elucidate Fe3+ enrichment and exchange infected
A novel rhodamine based fluorescent chemosensor RQP was prepared and characterized by 1HNMR, 13CNMR and HR-MS. The properties of RQP were studied through UV–Vis spectroscopy and fluorescence spectroscopy. RQP showed highly selectivity toward Hg2+ over other metal ions, including Ag+, Cd2+, Cu2+, Na+, Mg2+, Ni2+, Pb2+, Fe3+, and Zn2+ in aqueous solutions. The recognition process is reversible and confirmed by EDTA experiment.