کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7080403 | 1459994 | 2013 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Quinone-mediated microbial synthesis of reduced graphene oxide with peroxidase-like activity
ترجمه فارسی عنوان
سینیت میکروبی متصل به کوئینون از کاهش اکسید گرافین با فعالیت پراکسیداز مانند است
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تکنولوژی و شیمی فرآیندی
چکیده انگلیسی
The effects of different quinones on graphene oxide (GO) reduction by Shewanella oneidensis MR-1 and the peroxidase activity of the resultant reduced graphene oxide (QRGO) were studied. The presence of 100 μM anthraquinone-2-sulfonate (AQS), anthraquinone-2,6-disulfonate and 5-hydroxy-1,4-naphthoquinone could lead to 1.6-2.8-fold increase in GO reduction rate, whereas anthraquinone-2-carboxylate slowed down the reduction. The stimulating effects of AQS increased with the increase of its concentration (10-100 μM). The mediated effects were proved by direct GO reduction by microbially reduced AQS. The mediated reduction of GO to QRGO was characterized by UV-vis, XRD, FTIR, Raman spectra, XPS, TEM and AFM, respectively. The as-prepared QRGO possessed peroxidase-like activity, which could catalyze the oxidation of 3,3â²5,5â²-tetramethylbenzidine by H2O2, and followed Michealis-Menten kinetics. A colorimetric sensor for quantitative determination of glucose based on the peroxidase activity of QRGO was developed over a range of 1-120 μM with a detection limit of 1 μM.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 149, December 2013, Pages 503-508
Journal: Bioresource Technology - Volume 149, December 2013, Pages 503-508
نویسندگان
Guangfei Liu, Xin Zhang, Jiti Zhou, Aijie Wang, Jing Wang, Ruofei Jin, Hong Lv,