کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6477078 1426592 2016 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A photoelectrochemical sensor for hydrogen sulfide in cancer cells based on the covalently and in situ grafting of CdS nanoparticles onto TiO2 nanotubes
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
A photoelectrochemical sensor for hydrogen sulfide in cancer cells based on the covalently and in situ grafting of CdS nanoparticles onto TiO2 nanotubes
چکیده انگلیسی

A facile photoelectrochemical sensor for the determination of hydrogen sulfide (H2S) is developed. Photocurrent is generated through the grafting of CdS nanoparticles covalently and in situ onto TiO2 nanotubes. The surface of TiO2 nanotubes was modified by a layer of thioglycolic acid (TGA) to introduce thiol groups which can adsorb and immobilize Cd ions. CdS nanoparticles would be formed onto TiO2 nanotubes after treating with exogenous or endogenous H2S. Both the exogenous and H2S released from cancer cells were detected based on the photoelectric properties of CdS nanoparticles. And a wide linear range (10 nM-106 nM) was achieved with a detection limit of 0.7 nM.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Electroanalytical Chemistry - Volume 783, 15 December 2016, Pages 176-181
نویسندگان
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