Abstract
A hydrophilic trans-4,4′-diaminostilbene derivative was prepared by the introduction of amideamino peripheral substituents. Very high aqueous solubility was achieved (>15 mM), making it possible as a fluorescent probe for biological imaging. The relatively straightforward synthetic methodology has great potential to transform even large hydrophobic two-photon absorbing chromophores into hydrophilic derivatives. The fluorescence quantum yield of 0.27 for the diaminostilbene in water is sufficiently high for use as a fluorescent probe. In addition, two-photon fluorescence images of NT2 cells stained by this probe were also obtained.
Original language | English (US) |
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Pages (from-to) | 1863-1866 |
Number of pages | 4 |
Journal | Synlett |
Issue number | 12 |
DOIs | |
State | Published - Aug 1 2006 |
Externally published | Yes |
All Science Journal Classification (ASJC) codes
- Organic Chemistry
Keywords
- Fluorescent probe
- PAMAM: hydrophilic
- Two-photon
- Two-photon microscopy
- Z-scan