An aqueous friendly chemosensor derived from vitamin B₆ cofactor for colorimetric sensing of Cu²⁺ and fluorescent turn-off sensing of Fe³⁺.
Chemosensor L derived from vitamin B6 cofactor pyridoxal-5-phosphate was investigated for the selective detection of Cu(2+) and Fe(3+) in aqueous medium. Sensor L formed a 1:1 complex with Cu(2+) and displays a perceptible color change from colorless to yellow brown with the appearance of a new charge transfer band at ~450 nm. In contrast, the fluorescence of L was quenched selectively in the presence of Fe(3+) without any interference from other metal ions including Cu(2+).
Department of Applied Chemistry, SV National Institute of Technology, Ichchhanath, Surat 395007, Gujrat, India.
Darshna
D
Sharma
Department of Applied Chemistry, SV National Institute of Technology, Ichchhanath, Surat 395007, Gujrat, India.
Aman
A
Kuba
Department of Applied Chemistry, SV National Institute of Technology, Ichchhanath, Surat 395007, Gujrat, India.
Rini
R
Thomas
Department of Applied Chemistry, SV National Institute of Technology, Ichchhanath, Surat 395007, Gujrat, India.
Rajender
R
Kumar
Department of Applied Chemistry, Kyungpook National University, Daegu 702-701, Republic of Korea.
Heung-Jin
HJ
Choi
Department of Applied Chemistry, SV National Institute of Technology, Ichchhanath, Surat 395007, Gujrat, India; Department of Applied Chemistry, Kyungpook National University, Daegu 702-701, Republic of Korea. Electronic address: suban_sahoo@rediffmail.com.
Suban K
SK
Sahoo
D002138:Calibration; D003067:Coenzymes / Q000032:analysis*; D003124:Colorimetry / Q000379:methods*; D003300:Copper / Q000032:analysis*; D007501:Iron / Q000032:analysis*; D011789:Quantum Theory; D013050:Spectrometry, Fluorescence; D013056:Spectrophotometry, Ultraviolet; D025101:Vitamin B 6 / Q000032:analysis*; D014867:Water / Q000737:chemistry*
D003067:Coenzymes; D014867:Water; D003300:Copper; D025101:Vitamin B 6; D007501:Iron
Colorimetric sensor; Cu(2+); Fe(3+); Fluorescent sensor; Vitamin B(6) cofactor