Abstract
Rhodamine derivatives bearing the thiophene (1) and bisthiophene (2) groups are synthesized and their binding selectivity toward various metal ions was studied. The X-ray crystal structure of 1 was also reported. Probes 1 and 2 showed highly selective "Off-On" fluorescence changes with Hg 2+ among various metal ions. These selective changes were attributed to the spirolactam ring opening processes and subsequent hydrolysis. Probes 1 and 2 were sucessfully applied to the cell-imaging of Hg2+ using HeLa cells.
Original language | English |
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Pages (from-to) | 323-328 |
Number of pages | 6 |
Journal | Dyes and Pigments |
Volume | 99 |
Issue number | 2 |
DOIs | |
State | Published - 2013 |
Keywords
- Colorimetric sensor
- Fluorescent chemodosimeter
- Fluorescent chemosensor
- Mercury ion sensor
- Rhodamine