Abstract
Two unique pyrene derivatives are reported as Zn2+selective fluorescent probes, in which two pyrenes bearing imine and OH groups are connected via an ether linker or thioether linker. Upon the addition of Zn2+, the resulting phenolate group can induce internal charge transfer (ICT) peaks, which can cause selective turn-on fluorescence of each probe at 550 nm. Bathochromic shifts of their emissions are observed upon the binding with Zn2+. Each probe can successfully image exogenous Zn2+ions as well as free zinc ions released during apoptosis. These results using live cells suggest that these pyrene derived probes can be very effective probes in zinc biology studies.
| Original language | English |
|---|---|
| Pages (from-to) | 372-377 |
| Number of pages | 6 |
| Journal | Dyes and Pigments |
| Volume | 113 |
| DOIs | |
| State | Published - Feb 2015 |
Bibliographical note
Funding Information:This research was supported by a grant from the National Creative Research Initiative programs of the National Research Foundation of Korea (NRF) funded by the Korean government (MSIP) (No. 2012R1A3A2048814 ).
Publisher Copyright:
© 2014 Elsevier Ltd. All rights reserved.
Keywords
- Apoptosis
- Cell imaging
- Fluorescence chemosensor
- Pancreatic-cells
- Pyrene derivatives
- Zinc ion probe