Ratiometric and water-soluble fluorescent zinc sensor of carboxamidoquinoline with an alkoxyethylamino chain as receptor.
A novel "naked-eye" and ratiometric fluorescent zinc sensor (AQZ) of carboxamidoquinoline with an alkoxyethylamino chain as receptor was designed and synthesized. AQZ shows good water solubility and high selectivity for sensing; about an 8-fold increase in fluorescence quantum yield and a 75 nm red-shift of fluorescence emission upon binding Zn2+ in buffer aqueous solution are observed. Moreover, AQZ can enter yeast cells and signal the presence of Zn2+.
Zhang
Yu
Y
State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116012, China.
Guo
Xiangfeng
X
Si
Wanxia
W
Jia
Lihua
L
Qian
Xuhong
X
D000473:Alkanes / Q000737:chemistry; D000588:Amines / Q000737:chemistry; D015374:Biosensing Techniques / Q000379:methods*; D005456:Fluorescent Dyes / Q000737:chemistry*; D008856:Microscopy, Fluorescence; D015394:Molecular Structure; D011804:Quinolines / Q000138:chemical synthesis* / Q000737:chemistry; D012441:Saccharomyces cerevisiae / Q000187:drug effects*; D014867:Water; D015032:Zinc / Q000032:analysis* / Q000737:chemistry
D000473:Alkanes; D000588:Amines; D005456:Fluorescent Dyes; D011804:Quinolines; D014867:Water; D015032:Zinc