کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
186647 459619 2013 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Gold nanoparticles decorated reduced graphene oxide for detecting the presence and cellular release of nitric oxide
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Gold nanoparticles decorated reduced graphene oxide for detecting the presence and cellular release of nitric oxide
چکیده انگلیسی

In this work, we report the preparation of a nanocomposite consisting of gold nanoparticles (AuNPs) electrochemically deposited on electrochemically reduced graphene oxide (ERGO), and its use for sub-micromolar detection of nitric oxide (NO). ERGO network provides highly conductive pathways for electron conduction and a large surface area for catalyst support, while AuNPs act as efficient electrocatalysts toward the oxidation of NO. The synergistic integration of ERGO and AuNP realizes the electrochemical detection of NO with high sensitivity (5.38 μA/μM/cm2), low detection limit (133 nM with a S/N = ∼5.5), and a fast response time (3 s). Furthermore, we demonstrate the use of the AuNP-ERGO hybrid electrode to detect the dynamic release of NO from live human umbilical vein endothelial cells (HUVECs).

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochimica Acta - Volume 111, 30 November 2013, Pages 441–446
نویسندگان
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