TY - JOUR
T1 - β-cyclodextrin and calix[4]arene-functionalized thieno[3,2-b]thiophene based polymers as fluorescent ion sensors
AU - Hoda, Golfamsadat
AU - Isci, Recep
AU - Faraji, Sheida
AU - Ozturk, Turan
N1 - Publisher Copyright:
© 2024 Elsevier Ltd
PY - 2024/10
Y1 - 2024/10
N2 - Design, synthesis, and applications of four novel thienothiophene-based polymers as sensing probes (G1-CD, G2-CD, G1-Cal, and G2-Cal), incorporating π-bridges of thiophene (T) and biphenyl (BP) benefiting from the unique cone-shaped structure and intramolecular interactions of β-cyclodextrin and calix[4]arene, are reported. They exhibited remarkable fluorescent alterations in response to Hg2+, Fe3+, Ni2+, and Cu2+. Their syntheses involved Suzuki coupling, and a comprehensive analysis of the optical and electronic properties of the resulting polymers was conducted using UV–Vis spectroscopy, fluorescence spectroscopy, and cyclic voltammetry. Photophysical characterizations of these novel polymers showed a remarkable mega Stokes shift, reaching up to 162 nm and optic/electronic band gaps between 1.95 and 2.92 eV. Notably, G2-CD, functionalized with β-cyclodextrin, stands out as the most promising sensor, demonstrating superior sensitivity and selectivity in detecting Hg2+ ions with a remarkable turn-off fluorescence response down to concentrations as low as 1 ppm. This research contributes to advancing the development of electronically and optically responsive materials, with potential applications in the sensitive detection of biologically and toxicologically significant ions.
AB - Design, synthesis, and applications of four novel thienothiophene-based polymers as sensing probes (G1-CD, G2-CD, G1-Cal, and G2-Cal), incorporating π-bridges of thiophene (T) and biphenyl (BP) benefiting from the unique cone-shaped structure and intramolecular interactions of β-cyclodextrin and calix[4]arene, are reported. They exhibited remarkable fluorescent alterations in response to Hg2+, Fe3+, Ni2+, and Cu2+. Their syntheses involved Suzuki coupling, and a comprehensive analysis of the optical and electronic properties of the resulting polymers was conducted using UV–Vis spectroscopy, fluorescence spectroscopy, and cyclic voltammetry. Photophysical characterizations of these novel polymers showed a remarkable mega Stokes shift, reaching up to 162 nm and optic/electronic band gaps between 1.95 and 2.92 eV. Notably, G2-CD, functionalized with β-cyclodextrin, stands out as the most promising sensor, demonstrating superior sensitivity and selectivity in detecting Hg2+ ions with a remarkable turn-off fluorescence response down to concentrations as low as 1 ppm. This research contributes to advancing the development of electronically and optically responsive materials, with potential applications in the sensitive detection of biologically and toxicologically significant ions.
KW - Calix[4]arene
KW - Conductive polymer
KW - Cyclodextrin
KW - Fluorescence sensor
KW - Thienothiophene
UR - http://www.scopus.com/inward/record.url?scp=85192213903&partnerID=8YFLogxK
U2 - 10.1016/j.optlastec.2024.111135
DO - 10.1016/j.optlastec.2024.111135
M3 - Article
AN - SCOPUS:85192213903
SN - 0030-3992
VL - 177
JO - Optics and Laser Technology
JF - Optics and Laser Technology
M1 - 111135
ER -