Low potential detection of indole-3-acetic acid based on the peroxidase-like activity of hemin/reduced graphene oxide nanocomposite
Low potential detection of indole-3-acetic acid based on the peroxidase-like activity of hemin/reduced graphene oxide nanocomposite
复制标题
基于血红素/还原氧化石墨烯纳米复合材料的类过氧化物酶活性对吲哚-3-乙酸的低电位检测
DOI：
10.1016/j.bios.2016.07.089
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发表时间：
2016-12-15
影响因子：
12.6
通讯作者：
Hu, Xiaoya
中科院分区：
文献类型：
--
作者：
Liu, Fengping;Tang, Jiaqian;Hu, Xiaoya
首次建立了一种基于血红素/还原氧化石墨烯（hemin/rGO）复合材料的低电位检测吲哚-3-乙酸（IAA）的安培传感器。在不使用还原剂的情况下，采用简单易行的水热法制备了血红蛋白/还原氧化石墨烯纳米复合材料。它在氧存在下表现出类似过氧化物酶的催化氧化IAA活性。在0.1 ~ 43 μ M和43 ~ 183 μ M范围内，耗氧量与IAA浓度呈线性关系，检出限降至0.074 μ M，该传感器不受多种干扰物质的影响，且随时间稳定。本工作拓宽了hemin/rGO的应用范围，为IAA的检测提供了一种新的方法。(C) 2016 Elsevier B.V.版权所有
An amperometric sensor was firstly established for the detection of indole-3-acetic acid (IAA) at low potential based on the hemin/reduced graphene oxide (hemin/rGO) composite. The hemin/rGO nano composite was prepared by a simple and facile hydrothermal method without using any reducing agent. It exhibited peroxidase-like activity for the catalytic oxidation of IAA in the presence of oxygen. The consumption of oxygen has a linear relationship with the concentration of IAA in the range from 0.1 to 43 mu M and from 43 to 183 The detection limit was down to 0.074 mu M. This sensor was unaffected by many interfering substances and stable over time. Such work broadened the application of hemin/rGO and provided a new method for IAA detection. (C) 2016 Elsevier B.V. All rights reserved.