Abstract
A pyridylvinylene derivative containing piazselenole displayed high selectivity toward glutathione in the presence of other biorelevant analytes. The compound exhibited a 19 nm red-shift in absorption spectra and ∼3-fold fluorescence intensity enhancement; in addition, it was possible to detect micromolar amounts of glutathione quantitatively using both red-shift absorbance and enhanced fluorescence. The mechanism of the reaction between the modified pyridylvinylene derivative and glutathione was confirmed using ESI-MS and absorption/fluorescence spectra.
| Original language | English |
|---|---|
| Pages (from-to) | 87-92 |
| Number of pages | 6 |
| Journal | Dyes and Pigments |
| Volume | 86 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - Jun 2010 |
Keywords
- Fluorescence enhancement
- Glutathione
- Intramolecular charge transfer
- Red-shift
- Thiol probe
- Two-channel