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자연과학대학
화학·나노과학전공
Journal papers
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Selective fluorescent recognition of Zn2+ by using chiral binaphthol-pyrene probes
Title
Selective fluorescent recognition of Zn2+ by using chiral binaphthol-pyrene probes
Authors
Shirbhate M.E.
;
Jeong Y.
;
Ko G.
;
Baek G.
;
Kim G.
;
Kwon Y.-U.
;
Kim K.M.
;
Yoon J.
Ewha Authors
윤주영
;
김관묵
;
권용억
SCOPUS Author ID
윤주영
; 김관묵
; 권용억
Issue Date
2019
Journal Title
Dyes and Pigments
ISSN
0143-7208
Citation
Dyes and Pigments vol. 167, pp. 29 - 35
Keywords
Binapthol
;
Circular dichroism
;
Fluorescent chemosensor for Zn2+
;
Fluorescent probe for Zn2+
;
Zn2+ imaging in cells
Publisher
Elsevier Ltd
Indexed
SCIE; SCOPUS
Document Type
Article
Abstract
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
DOI
10.1016/j.dyepig.2019.03.063
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