کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7145860 | 1462079 | 2015 | 28 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A nonenzymatic amperometric glucose sensor based on three dimensional nanostructure gold electrode
ترجمه فارسی عنوان
یک حسگر غلظت آمپولومتری گلوکز بر اساس سه بعدی الکترود طلای نانوساختار
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کلمات کلیدی
گلوکز، سنسور غیر انزمی الکترود طلای سه بعدی نانوساختار، چرخه کاهش اکسیداسیون میدان موج،
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
چکیده انگلیسی
A nonenzymatic amperometric glucose sensor was established based on the electrocatalytic oxidation of nanoporous gold (NPG) toward glucose. The NPG electrode was prepared by a facile, rapid one-step square-wave oxidation reduction cycle (SWORC) within 5 min. The prepared NPG electrode had high roughness, excellent electrocatalytic activity toward glucose electrooxidation and was characterized by scan electron microscopy (SEM), atomic force microscope (AFM) and cyclic voltammetry (CV). The CV was also used to evaluate the electrochemical response of the NPG electrode to the glucose oxidation in 0.01 mol Lâ1 NaOH solution. Under the optimal conditions, the NPG electrode showed a good linear relationship between the current response signal and the glucose concentrations in a range from 2 μmol Lâ1 to 1.375 mmol Lâ1 and 1.375 mmol Lâ1 to 15 mmol Lâ1 with a detection limit of 0.5 μmol Lâ1 (S/N = 3). In addition, the nafion was selected as the protective film to enhance specificity of the developed glucose biosensor, and the physiological levels of ascorbic acid (0.1 mmol Lâ1) and uric acid (0.02 mmol Lâ1) only had negligible interferences to the glucose detection. This new glucose sensor exhibited a fast amperometric response, high sensitivity and selectivity, and it was successfully used to detect the glucose in human serum sample with a satisfactory result.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Sensors and Actuators B: Chemical - Volume 212, June 2015, Pages 72-77
Journal: Sensors and Actuators B: Chemical - Volume 212, June 2015, Pages 72-77
نویسندگان
Guang-Xian Zhong, Wen-Xin Zhang, Yi-Ming Sun, Yin-Qiu Wei, Yun Lei, Hua-Ping Peng, Ai-Lin Liu, Yuan-Zhong Chen, Xin-Hua Lin,