کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8022320 | 1517282 | 2013 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Synthesis of graphene based noble metal composites for glucose biosensor
ترجمه فارسی عنوان
سنتز کامپوزیت های فلزی نجیب بر پایه گرافن برای بیوسنسور گلوکز
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فناوری نانو (نانو تکنولوژی)
چکیده انگلیسی
Graphene (GR) based noble metal composites such as Pt-GR and Au-GR were synthesized for sensitive glucose biosensors. Aerosol spray pyrolysis (ASP) was employed to synthesize the noble metal nanoparticles-GR composites using a colloidal mixture of GO and noble metal precursor (H2PtCl6·6H2O and AuCl4·3H2O). The morphology of noble metal-GR composites was generally the shape of a crumpled paper ball, and the average composite size was about 1 µm. Crystalline Pt and Au nanoparticles less than 5 nm in diameter were uniformly deposited on the crumpled GR sheets, respectively. The charateristics of the as-prepared biosensors were tested through cyclic voltammetry measurements. All the biosensors based on the noble metal-crumpled GR composite exhibited a higher current flow as well as clear redox peaks, which resulted in a superior ability of the catalyst in terms of an electrochemical reaction. The amperometric response of the glucose biosensor based on the Pt-crumpled GR composite indicated the highest sensitivity as 62 µA/mM cm2.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Letters - Volume 106, 1 September 2013, Pages 277-280
Journal: Materials Letters - Volume 106, 1 September 2013, Pages 277-280
نویسندگان
Hee Dong Jang, Sun Kyung Kim, Hankwon Chang, Jeong-Woo Choi, Jiaxing Huang,