A rhodamine-based sensor has been developed for the detection of mercuric ions. The colorimetric and fluorescence responses, allowing naked-eye detections, are based on Hg^2＋-induced opening of the rhodamine spirocyc...A rhodamine-based sensor has been developed for the detection of mercuric ions. The colorimetric and fluorescence responses, allowing naked-eye detections, are based on Hg^2＋-induced opening of the rhodamine spirocycle. Among all the testes ions, only Hg^2＋generated a significant fluorescence enhancement of up to 300-fold, with a bright yellow–green emission. This sensor was a low toxic compound, and was successfully applied in the in vivo imaging of Hg^2＋in Spill 2 cells and C. elegans. This approach provides a sensitive and accurate method for the estimation of Hg^2＋in environmental, tobacco and biological applications.展开更多
基金supported by the fund of China Tobacco Yunnan Industrial Co. (No. 2015JC05)Foundation of the Department of Science and Technology of Yunnan Province of China (Nos. 2013HB062, 2014HB008)Training Project (No. XT412003) of Yunnan University
文摘A rhodamine-based sensor has been developed for the detection of mercuric ions. The colorimetric and fluorescence responses, allowing naked-eye detections, are based on Hg^2＋-induced opening of the rhodamine spirocycle. Among all the testes ions, only Hg^2＋generated a significant fluorescence enhancement of up to 300-fold, with a bright yellow–green emission. This sensor was a low toxic compound, and was successfully applied in the in vivo imaging of Hg^2＋in Spill 2 cells and C. elegans. This approach provides a sensitive and accurate method for the estimation of Hg^2＋in environmental, tobacco and biological applications.
