کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
745084 894413 2009 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Selective immobilization of tris(2,2′-bipyridyl)ruthenium (II) onto array electrode for solid-state electrochemiluminescene sensor fabrication
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Selective immobilization of tris(2,2′-bipyridyl)ruthenium (II) onto array electrode for solid-state electrochemiluminescene sensor fabrication
چکیده انگلیسی

An effective method for selective immobilization of tris(2,2′-bipyridyl)ruthenium(II) (Ru(bpy)32+) onto one target electrode surface based on the electrodeposition of RuDS NPs (Ru(bpy)32+ doped silica nanoparticles)/chitosan composite film is presented in this paper. Ru(bpy)32+ was selectively deposited onto four individual electrodes in an Au electrode array. The results demonstrate the possibility of selective immobilization of Ru(bpy)32+ onto array electrodes and selective immobilization of different ECL composite. Therefore have potential applications in bioanalysis, capillary electrophoresis and drug screening.RuDS NPs and the resulting composite film were characterized by UV–vis spectroscopy, transmission electron microscopy (TEM) and Field emission-scanning electron microscope (FE-SEM). The electrochemiluminescence (ECL) sensor based on the composite film modified electrode exhibited excellent reproducibility, stability and sensitivity for the detection of tri-n-propylamine (TPA). The linear range was from 1 × 10−10 to 1 × 10−6 M (R2 = 0.9954) with the detection limit of 5 × 10−11 M.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Sensors and Actuators B: Chemical - Volume 141, Issue 1, 18 August 2009, Pages 244–248
نویسندگان
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