کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5398089 1505877 2017 28 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Graphene quantum dots prepared from glucose as optical sensor for glucose
ترجمه فارسی عنوان
نقاط کوانتومی گرافن از گلوکز به عنوان حسگر نوری برای گلوکز تهیه شده است
کلمات کلیدی
گرافن، نقاط کوانتومی گرافن، سنسور نوری، عکسبرداری، سنسور گلوکز،
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
چکیده انگلیسی
Quantum Dots (QDs) show promise materials for many technological applications. In this work we utilized a simple route to prepare graphene quantum dots (GQDs) using glucose carbonization. GQDs functionalized with phenylboronic acid receptors were employed as a sensing material for a nonenzymatic glucose sensor. Photoluminance spectra of GQDs were used as a property of optical sensor for glucose. GQDs considered as a good sensing probe because of its low toxicity, high photoluminance, water solubility and excelent photochemical properties. The prepared GQDs were characterized using UV-visible, Raman and photoluminance spectroscopies, X-ray diffraction and high resolution transmission electron microscopy (HRTEM). HRTEM micrographs confirmed the preparation of 7-10 nm GQDs and the emission peak of the GQDs appeared at 450 nm. The developed sensor has linear response to glucose over a concentration range of 4-40 mM with a correlation coefficient of 0.97 and a low detection limit of approximately 3.0 mM.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Luminescence - Volume 184, April 2017, Pages 110-116
نویسندگان
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