کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
870033 | 909847 | 2007 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Electrochemical study of ferrocenemethanol-modified layered double hydroxides composite matrix: Application to glucose amperometric biosensor
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
A novel amperometric glucose sensor based on co-immobilization of ferrocenemethanol (MeOHFc) and glucose oxidase (GOD) in the layered double hydroxides (LDHs) was described. MeOHFc immobilized in LDHs played effectively the role of an electron shuttle and allowed the detection of glucose at 0.25 V (versus SCE), with dramatically reduced interference from easily oxidizable constituents. The sensor (LDHs/MeOHFc/GOD) exhibited a relatively fast response (response time was about 5 s), low detection limit (3 μM), and high sensitivity (ca. 60 mA M−1 cm−2) with a linear range of 6.7 × 10−6 to 3.86 × 10−4 M of glucose. Apparent Michaelis–Menten constant was calculated to be 2.25 mM.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Biosensors and Bioelectronics - Volume 23, Issue 3, 31 October 2007, Pages 432–437
Journal: Biosensors and Bioelectronics - Volume 23, Issue 3, 31 October 2007, Pages 432–437
نویسندگان
Dan Shan, Wenjuan Yao, Huaiguo Xue,