کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
601066 879930 2011 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
PDMS-based gold electrode for sensing ascorbic acid
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی شیمی کلوئیدی و سطحی
پیش نمایش صفحه اول مقاله
PDMS-based gold electrode for sensing ascorbic acid
چکیده انگلیسی

Electrode with optical shapes is appreciated in microfluidics. In this article, we reported a flexible poly(dimethylsiloxane) (PDMS)-based gold electrode for ascorbic acid detection. Gold nanoparticles were chemically deposited on PDMS and the composite film was applied as working electrode. The electrode could undergo deformation and display good response performance without damage. This biosensor could give quick response to ascorbic acid (AA) (<5 s) and the currents were linear with concentrations of AA in range of 0.023–7.00 mM and 30–100 mM, respectively. Limit of detection was 0.008 mM (S/N = 3). This biosensor has been applied to determine ascorbic acid content in vitamin C tablets and the results were consistent with traditional iodometric method.

Figure optionsDownload as PowerPoint slideHighlights
► Preparation of flexible poly(dimethylsiloxane) (PDMS)-based gold electrode.
► Characterization of PDMS-based gold electrode with different shapes.
► Limit of detection is 0.008 mM (S/N = 3).
► Application for ascorbic acid detection in vitamin C tablets.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Colloids and Surfaces B: Biointerfaces - Volume 88, Issue 1, 1 November 2011, Pages 362–365
نویسندگان
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