کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7639950 | 1494851 | 2018 | 30 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
An electrochemical dopamine aptasensor using the modified Au electrode with spindle-shaped gold nanostructure
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
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چکیده انگلیسی
In this study, a novel electrochemical dopamine aptasensor was developed. Spindle-shaped gold nanostructure was used to find an optimized surface for aptamer immobilization. The used nanostructure was studied through field emission scanning electron microscopy (FESEM) and energy dispersive spectroscopy (EDS). Electrochemical measurements were based on differential pulse voltammetry (DPV). Methylene blue (MB) was used as a redox marker during experiments. In order to find real selectivity of the designed aptasensor, ascorbic acid, epinephrine, norepinephrine, catechol and uric acid were used as interfering agents in the presence of dopamine. This aptasensor could detect dopamine in the linear range 25â¯pgâ¯mLâ1-3â¯ngâ¯mLâ1 with the limit of detection (LOD) of 2â¯pgâ¯mLâ1.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Microchemical Journal - Volume 143, December 2018, Pages 243-251
Journal: Microchemical Journal - Volume 143, December 2018, Pages 243-251
نویسندگان
Ramezan Ali Taheri, Khadijeh Eskandari, Masoud Negahdary,