• 文献标题:   Preparation of highly stable fullerene C60 decorated graphene oxide nanocomposite and its sensitive electrochemical detection of dopamine in rat brain and pharmaceutical samples
  • 文献类型:   Article
  • 作  者:   THIRUMALRAJ B, PALANISAMY S, CHEN SM, LOU BS
  • 作者关键词:   graphene oxide, fullerene c60, nanocomposite, dopamine, electrochemical sensor, differential pulse voltammetry
  • 出版物名称:   JOURNAL OF COLLOID INTERFACE SCIENCE
  • ISSN:   0021-9797 EI 1095-7103
  • 通讯作者地址:   Natl Taipei Univ Technol
  • 被引频次:   28
  • DOI:   10.1016/j.jcis.2015.10.009
  • 出版年:   2016

▎ 摘  要

The research community has continuously paid much attention on the preparation of hybrid of carbon nanomaterials owing to combine their unique properties. Herein, we report the preparation of highly stable fullerene C60 (C60) wrapped graphene oxide (GO) nanocomposite by using a simple sonication method. The fabricated GO-C60 nanocomposite modified glassy carbon electrode shows a good sensitivity and lower oxidation overpotential towards dopamine (DA) than that of pristine GO and C60. The fabricated sensor detects the DA in the linear response range of 0.02-73.5 mu M. The limit of detection is estimated to be 0.008 mu M based on 3 sigma with a sensitivity of 4.23 mu A mu M-1 cm(-2). The fabricated sensor also exhibits other features such as good selectivity, stability, reproducibility and repeatability. The proposed sensor exhibits good practicality towards the detection of DA in rat brain and commercial DA injection samples. (C) 2015 Elsevier Inc. All rights reserved.