Selective fluorescent recognition of Zn2+ by using chiral binaphthol-pyrene probes
- 주제(키워드) Binapthol , Circular dichroism , Fluorescent chemosensor for Zn2 , Fluorescent probe for Zn2 , Zn2+ imaging in cells
- 등재 SCIE, SCOPUS
- 발행기관 Elsevier Ltd
- 발행년도 2019
- URI http://www.dcollection.net/handler/ewha/000000160100
- 본문언어 영어
- Published As http://dx.doi.org/10.1016/j.dyepig.2019.03.063
초록/요약
The bis-binaphthol-pyrene derivative 1 (R isomer) and 2 (S isomer) selectively sense Zn2+ by undergoing a reversible fluorescent emission enhancement at 550 nm. Moreover, upon addition of Zn2+, the magnitude of the peak in the CD spectrum of 1 at 289 nm increases and the intensity of the peak at 272 nm decreases. Opposite changes were observed for 2 upon the addition Zn2+. The distinctive fluorescence and ratiometric CD spectral changes are attributed to a change in the dihedral angle between the binaphthol groups in 1 and 2 caused by Zn2+ binding. Probe 1 was further employed to image Zn2+ in cells. © 2019 Elsevier Ltd
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