TY - JOUR
T1 - A new bis-pyrene derivative as a selective colorimetric and fluorescent chemosensor for cyanide and fluoride and anion-activated CO2 sensing
AU - Lee, Minji
AU - Moon, Jong Hun
AU - Swamy, K. M.K.
AU - Jeong, Youngsuk
AU - Kim, Gyoungmi
AU - Choi, Jiyoung
AU - Lee, Jin Yong
AU - Yoon, Juyoung
N1 - Funding Information:
This work was also supported by the National Research Foundation of Korea (NRF) grant funded by the Korea Government (MSIP) (No. 2012R1A3A2048814 ). The work at Sungkyunkwan University was supported by an NRF Grant ( 2007-0056343 ) funded by MEST.
PY - 2014/8
Y1 - 2014/8
N2 - In the present study, we report the solvent controlled selectivity of cyanide. A newly synthesized bis-pyrene derivative 1 exhibited large "off-on" fluorescence enhancement with fluoride and cyanide in CH 3CN-DMSO (99:1, v/v), which was accompanied by unique colorimetric changes. Likewise, in CH3CN-DMSO-EtOH (98:1:1, v/v) or CH 3CN-DMSO-H2O (94:1:5, v/v), selective fluorescence enhancement with cyanide was observed among the various anions, which was attributed to a favourable interaction between the fluoride ion with ethanol or water. The binding modes, UV absorption and fluorescence changes of 1 upon CN- binding are also explained by DFT calculations. Probe 1 was successfully applied for imaging cyanide in the HeLa cells. Finally, anion-activated CO2 sensing via colour and fluorescence changes is demonstrated using chemosensor 1.
AB - In the present study, we report the solvent controlled selectivity of cyanide. A newly synthesized bis-pyrene derivative 1 exhibited large "off-on" fluorescence enhancement with fluoride and cyanide in CH 3CN-DMSO (99:1, v/v), which was accompanied by unique colorimetric changes. Likewise, in CH3CN-DMSO-EtOH (98:1:1, v/v) or CH 3CN-DMSO-H2O (94:1:5, v/v), selective fluorescence enhancement with cyanide was observed among the various anions, which was attributed to a favourable interaction between the fluoride ion with ethanol or water. The binding modes, UV absorption and fluorescence changes of 1 upon CN- binding are also explained by DFT calculations. Probe 1 was successfully applied for imaging cyanide in the HeLa cells. Finally, anion-activated CO2 sensing via colour and fluorescence changes is demonstrated using chemosensor 1.
KW - Anion recognition
KW - Colorimetric sensor
KW - Cyanide selective chemosensor
KW - Fluorescence sensor
UR - http://www.scopus.com/inward/record.url?scp=84899635521&partnerID=8YFLogxK
U2 - 10.1016/j.snb.2014.04.005
DO - 10.1016/j.snb.2014.04.005
M3 - Article
AN - SCOPUS:84899635521
VL - 199
SP - 369
EP - 376
JO - Sensors and Actuators, B: Chemical
JF - Sensors and Actuators, B: Chemical
SN - 0925-4005
ER -