کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
196021 459830 2006 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Development and study of anodic Ti/TiO2 electrodes and their potential use as impedimetric immunosensors
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Development and study of anodic Ti/TiO2 electrodes and their potential use as impedimetric immunosensors
چکیده انگلیسی

Titanium dioxide films were anodically formed at various potentials up to 65 V in 1 M H2SO4. Oxide films were characterized by performing various techniques, including electrochemical impedance spectroscopy, scanning electron microscopy, Raman spectroscopy, ellipsometry and diffuse reflectance FT-IR spectroscopy. Low voltage anodization (up to 10 V) results to amorphous TiO2, whereas at higher applied potentials (up to 65 V), anatase is the predominant form. Anatase films were further hydroxylated with an acidic agent and the effect of this treatment on the overall impedance of the electrodes was studied with impedance spectroscopy. The potential use of anodic (anatase) Ti/TiO2 electrodes in the development of impedimetric immunosensors is also demonstrated by monitoring the immunoreaction of avidin/anti-avidin with different instrumental approaches based on a FRA analyzer, an LCR-meter and a home-built charge integrator (Multipulser).

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochimica Acta - Volume 51, Issue 17, 25 April 2006, Pages 3537–3542
نویسندگان
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