TY - JOUR
T1 - A novel “off-on” type fluorescent chemosensor for detection of Zn2+ and its zinc complex for “on-off” fluorescent sensing of sulfide in aqueous solution, in vitro and in vivo
AU - Jung, Jae Min
AU - Kang, Ji Hye
AU - Han, Jiyeon
AU - Lee, Hyojin
AU - Lim, Mi Hee
AU - Kim, Ki Tae
AU - Kim, Cheal
N1 - Publisher Copyright:
© 2018 Elsevier B.V.
PY - 2018/8/15
Y1 - 2018/8/15
N2 - We reported a new quinoline-based fluorescent probe 1 for Zn2+ and S2−. 1 showed a highly selective fluorescence enhancement toward Zn2+ over other metal ions including Cd2+, and the resulting 1-Zn2+ complex could detect only S2− among the various anions. The detection limits (0.09 μM and 0.88 μM) for Zn2+ and S2− were much lower than recommended values (76 μM for Zn2+ and 14.8 μM for S2−) by WHO. Their recognition mechanisms were explained by Job plots, UV–vis titrations, 1H NMR titrations, ESI-mass, and theoretical calculations. Moreover, compound 1 with the great photostability and low biotoxicity showed sequentially off-on-off fluorescent bio-imaging of Zn2+ and S2− in both HeLa cells and live zebrafish larvae.
AB - We reported a new quinoline-based fluorescent probe 1 for Zn2+ and S2−. 1 showed a highly selective fluorescence enhancement toward Zn2+ over other metal ions including Cd2+, and the resulting 1-Zn2+ complex could detect only S2− among the various anions. The detection limits (0.09 μM and 0.88 μM) for Zn2+ and S2− were much lower than recommended values (76 μM for Zn2+ and 14.8 μM for S2−) by WHO. Their recognition mechanisms were explained by Job plots, UV–vis titrations, 1H NMR titrations, ESI-mass, and theoretical calculations. Moreover, compound 1 with the great photostability and low biotoxicity showed sequentially off-on-off fluorescent bio-imaging of Zn2+ and S2− in both HeLa cells and live zebrafish larvae.
KW - Cell and zebrafish imaging
KW - Fluorescent chemosensor
KW - Sulfide
KW - Theoretical calculations
KW - Zinc ion
UR - http://www.scopus.com/inward/record.url?scp=85045071572&partnerID=8YFLogxK
U2 - 10.1016/j.snb.2018.03.063
DO - 10.1016/j.snb.2018.03.063
M3 - Article
AN - SCOPUS:85045071572
SN - 0925-4005
VL - 267
SP - 58
EP - 69
JO - Sensors and Actuators, B: Chemical
JF - Sensors and Actuators, B: Chemical
ER -