Synthesis of flower-like cuo hierarchical nanostructures as an electrochemical platform for glucose sensing
Synthesis of flower-like cuo hierarchical nanostructures as an electrochemical platform for glucose sensing
复制标题
DOI：
10.1007/s10008-016-3163-1
复制
发表时间：
2016-02
影响因子：
2.5
通讯作者：
Natália G. Medeiros;Vanessa Cezar Ribas;V. Lavayen;Jacqueline Arguello da Silva
中科院分区：
文献类型：
--
作者：
Natália G. Medeiros;Vanessa Cezar Ribas;V. Lavayen;Jacqueline Arguello da Silva
采用简单的湿化学方法，在室温碱性介质中，在铜箔衬底上合成了花状CuO分级纳米结构。在不同的反应时间收集的SEM图像显示，最初形成的Cu（OH）2纳米线的花状CuO纳米结构的转变。所制备的CuO的分级结构对葡萄糖的氧化表现出很高的电催化活性，使其成为一种有前途的电极材料，用于非酶葡萄糖传感器的开发。在0.3 V固定电位下，该传感器对葡萄糖的线性范围为4.5 × 10− 5 ~ 1.3 × 10− 3 mol L−1（R2= 0.99317）。检测限为6.9 × 10− 6 mol L−1（LOD = 3σ/s），灵敏度为1.71 μA μmol−1cm−2。此外，开发的传感器提供了一个快速的安培响应，良好的选择性和稳定性。
Flower-like CuO hierarchical nanostructures were synthesized on copper foil substrate through a simple wet chemical route in alkaline media at room temperature. SEM images collected at different reaction times revealed the transformation of initially formed Cu(OH)2nanowires to flower-like CuO nanostructures. The hierarchical structure of the as-prepared CuO showed high electrocatalytic activity towards the oxidation of glucose making it a promising electrode material for the development of non-enzymatic glucose sensor. The amperometric sensor exhibited a wide linear response to glucose ranging from 4.5 × 10−5to 1.3 × 10−3mol L−1(R2= 0.99317) at fixed potential of 0.3 V. The detection limit was 6.9 × 10−6mol L−1(LOD = 3σ/s) with a sensitivity of 1.71 μA μmol−1cm−2. Moreover, the developed sensor offers a fast amperometric response, good selectivity and stability.