کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7147764 | 1462099 | 2014 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
An interference-free glucose biosensor based on a novel low potential redox polymer mediator
ترجمه فارسی عنوان
بیوسنسور گلوکز بدون دخالت بر اساس یک کمپین جدید کم بیننده پلی اتیلن
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
چکیده انگلیسی
A highly sensitive and interference-free glucose biosensor based on a novel ruthenium complex-tethered redox polymer (Ru-RP) mediated enzymatic oxidation of glucose at â0.15 V (vs. Ag/AgCl) is described in this report. Through the co-immobilization of the Ru-RP and glucose oxidase (GOx) on a glassy carbon electrode (GCE) via a simple one-step chemical crosslinking process with glutaraldehyde, the crosslinked membrane displays excellent catalytic activity toward the oxidation of glucose with a current sensitivity of 24.3 μA mMâ1 cmâ2 and a linear correlation between the oxidation current and glucose concentration up to 10 mM. More importantly, owing to the low operating potential of â0.15 V (vs. Ag/AgCl), potential interferences from naturally occurring interfering species in blood such as ascorbic acid, dopamine, uric acid, and common drug acetaminophen are effectively alleviated. Furthermore, the hydrophilic nature of the crosslinked membrane also effectively retards the diffusion of molecular oxygen. This glucose biosensor could be an attractive candidate in the development of miniaturized glucose biosensors.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Sensors and Actuators B: Chemical - Volume 191, February 2014, Pages 522-528
Journal: Sensors and Actuators B: Chemical - Volume 191, February 2014, Pages 522-528
نویسندگان
Huimin Deng, Alan Kay Liang Teo, Zhiqiang Gao,