کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6610819 | 459557 | 2015 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
In-situ fabrication of well-distributed gold nanocubes on thiol graphene as a third-generation biosensor for ultrasensitive glucose detection
ترجمه فارسی عنوان
تولید ناخالصی های توزیع شده توزیع شده روی تریل گرافن به عنوان یک نسل سوم بیوسنسور برای تشخیص حساسیت به دستگاه گوارش فوق العاده حساس
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
چکیده انگلیسی
Because of the advanced work mechanism on enzyme direct electron transfer, third-generation biosensor has aroused the growing attentions in recent decade. Herein, a novel structured 3rd generation glucose biosensor was constructed by the in-situ limited electrodeposition of gold nanocubes on a thiol graphene film. On account of the restriction from -SH group, initially, a tightly distributed Au seed layer was homogeneously formed to cover the graphene surface. Then 100 nm well-defined Au cubes were grown above with a uniform distribution, resulting in the low electrochemical resistance. Due to the synergistic effects of uniform distribution and regular nanostructure, the as-prepared biosensor owned an ultrasensitive response (221.0 μA·mMâ1·cmâ2) in glucose detection under â0.4 V. Such a low operation potential also provided an excellent anti-interference ability to the existence of ascorbic acid and uric acid. This new biosensor with outstanding sensitivity and selectivity can be further developed in trace analysis of more complex detection systems.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochimica Acta - Volume 176, 10 September 2015, Pages 162-171
Journal: Electrochimica Acta - Volume 176, 10 September 2015, Pages 162-171
نویسندگان
Zhenyu Chu, Yu Liu, Yaqi Xu, Lei Shi, Jingmeng Peng, Wanqin Jin,