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Tang, Lijun,Zhou, Pei,Huang, Zhenlong,Zhao, Jia,Cai, Mingjun Korean Chemical Society 2013 Bulletin of the Korean Chemical Society Vol.34 No.10
Fluorescent and colorimetric recognition properties of 2-(4-N-phenyl-3-thiosemicarbazone)-8-hydroxyquinoline (1) in buffered aqueous solution (1% DMSO, HEPES 20 mM, pH = 7.4) have been examined. Sensor 1 displays highly selective and sensitive recognition to $Cu^{2+}$ with fluorescence "ON-OFF" performance. The in situ formed 1-$Cu^{2+}$ complex exhibits an excellent selectivity toward sulfide ions with fluorescence "OFF-ON" behavior via $Cu^{2+}$ displacement approach. Thus, relay recognition of $Cu^{2+}$ and sulfide by a known molecule 1 has been achieved.
Tang, Lijun,Guo, Jiaojiao,Huang, Zhenlong Korean Chemical Society 2013 Bulletin of the Korean Chemical Society Vol.34 No.4
A known $Hg^{2+}$ selective rhodamine B derivatised probe 1 was reinvestigated as a colorimetric and fluorescent probe for $Cu^{2+}$ through changing the applied solvent media. Probe 1 exhibited good selectivity and sensitivity to $Cu^{2+}$ in $CH_3CN-H_2O$ (7:3, v/v, HEPES 10 mM, pH 7.0) solution with a detection limit of $9.74{\times}10^{-7}$ M. The $Cu^{2+}$ sensing event was proved to be irreversible through hydrolysis of 1 to release rhodamine B.
Lijun Tang,Jiaojiao Guo,Zhenlong Huang 대한화학회 2013 Bulletin of the Korean Chemical Society Vol.34 No.4
A known Hg2+ selective rhodamine B derivatised probe 1 was reinvestigated as a colorimetric and fluorescent probe for Cu2+ through changing the applied solvent media. Probe 1 exhibited good selectivity and sensitivity to Cu2+ in CH3CN-H2O (7:3, v/v, HEPES 10 mM, pH 7.0) solution with a detection limit of 9.74 × 10−7 M. The Cu2+ sensing event was proved to be irreversible through hydrolysis of 1 to release rhodamine B.
Li-Jun Tang,Pei Zhou,Zhikai Qi,Zhenlong Huang,Jia Zhao,Mingjun Cai 대한화학회 2013 Bulletin of the Korean Chemical Society Vol.34 No.8
A new quinoline-based acylhydrazone (1) has been synthesized and applied as a fluorescent probe. Probe 1 exhibits high selectivity and sensitivity to Cu2+ with fluorescence “ON-OFF” behavior in HEPES buffered (1‰ DMSO, HEPES 20 mM, pH = 7.4) solution. The on-site generated 1-Cu2+ complex displays excellent selectivity to sulfide ions with fluorescence “OFF-ON” performance through copper displacement approach.
Tang, Lijun,Zhou, Pei,Qi, Zhikai,Huang, Zhenlong,Zhao, Jia,Cai, Mingjun Korean Chemical Society 2013 Bulletin of the Korean Chemical Society Vol.34 No.8
A new quinoline-based acylhydrazone (1) has been synthesized and applied as a fluorescent probe. Probe 1 exhibits high selectivity and sensitivity to $Cu^{2+}$ with fluorescence "ON-OFF" behavior in HEPES buffered (1‰ DMSO, HEPES 20 mM, pH = 7.4) solution. The on-site generated 1-$Cu^{2+}$ complex displays excellent selectivity to sulfide ions with fluorescence "OFF-ON" performance through copper displacement approach.
Li-Jun Tang,Pei Zhou,Zhenlong Huang,Jia Zhao,Mingjun Cai 대한화학회 2013 Bulletin of the Korean Chemical Society Vol.34 No.10
Fluorescent and colorimetric recognition properties of 2-(4-N-phenyl-3-thiosemicarbazone)-8-hydroxyquinoline (1) in buffered aqueous solution (1% DMSO, HEPES 20 mM, pH = 7.4) have been examined. Sensor 1 displays highly selective and sensitive recognition to Cu2+ with fluorescence “ON-OFF” performance. The in situ formed 1-Cu2+ complex exhibits an excellent selectivity toward sulfide ions with fluorescence “OFF-ON” behavior via Cu2+ displacement approach. Thus, relay recognition of Cu2+ and sulfide by a known molecule 1 has been achieved.
Tang, Lijun,Wen, Xin,Dai, Xin,Wu, Di,Huang, Zhenlong Korean Chemical Society 2014 Bulletin of the Korean Chemical Society Vol.35 No.11
A quinoline-thiooxorhodamine conjugate fluorescent sensor (1) has been synthesized. Sensor 1 exhibits high selectivity and sensitivity to $Hg^{2+}$ in $H_2O$/DMSO (95/5, v/v, HEPES 20 mM, pH = 7.4) solution with fluorescence detection. Other tested metal ions do not induce any significant fluorescence intensity changes. Sensor 1 interacts with $Hg^{2+}$ through a 1:1 binding stoichiometry with a good anti-inference ability. In addition, fluorescent imaging of $Hg^{2+}$ in Hela cells is also successfully demonstrated.
Li-Jun Tang,Xin Wen,Xin Dai,Di Wu,Zhenlong Huang 대한화학회 2014 Bulletin of the Korean Chemical Society Vol.35 No.11
A quinoline-thiooxorhodamine conjugate fluorescent sensor (1) has been synthesized. Sensor 1 exhibits high selectivity and sensitivity to Hg2+ in H2O/DMSO (95/5, v/v, HEPES 20 mM, pH = 7.4) solution with fluorescence detection. Other tested metal ions do not induce any significant fluorescence intensity changes. Sensor 1 interacts with Hg2+ through a 1:1 binding stoichiometry with a good anti-inference ability. In addition, fluorescent imaging of Hg2+ in Hela cells is also successfully demonstrated.