کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
182031 459415 2008 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Layer-by-layer assembled DNA functionalized single-walled carbon nanotube hybrids for arsenic(III) detection
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Layer-by-layer assembled DNA functionalized single-walled carbon nanotube hybrids for arsenic(III) detection
چکیده انگلیسی

Based on layer-by-layer assembled DNA functionalized single-walled carbon nanotube hybrids, a DNA biosensor for the detection of arsenic(III) in a nearly physiological pH environment was developed. The redox process between arsenic(III) and arsenic(0) on the biosensor was proved. The growth of those hybrids on glassy carbon electrode was monitored by detecting arsenic(III). The arsenic(III) current on the biosensor was similar over a broad pH range (3.0–8.0) and the limit of detection (S/N = 3) was 0.05 μg L−1 at pH 7.0. The biosensor can be reused up to 16 times.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochemistry Communications - Volume 10, Issue 6, June 2008, Pages 872–875
نویسندگان
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