摘要
当今社会,环境压力日益增加。低成本、高效率的新型检测材料的开发与利用迫在眉睫。为解决这个问题,人们研发出多种新型纳米材料来增强其检测的灵敏度和稳定性~([1])。其中金属硫化物在生物检测中扮演着重要角色~([2]),碳基纳米材料复合物由于其优异的稳定性与复合材料之间的协同效应~([3]),也有希望成为一类性能良好的生物检测材料。在工作中,我们提出一种简便、高效的方法在氧化石墨烯(GO)表面成核生长氧化铜微晶~([4]),再通过一步法水热生成GO-Cu_8S_5-PPy三元复合纳米片层材料。Cu_8S_5高效的催化活性与GO,PPy之间显著的协同效应使GO-Cu_8S_5-PPy复合纳米材料在类过氧化物酶催化反应中展现了优异的催化活性、良好的稳定性,从而成为一种优异的生物传感材料。
Nowadays,environment has become one of the top global problems facing society.It is urgent to develop new kind of materials for high performance biosensors.To solve this problem,a large variety of new nanomaterials have been developed to enhance the sensitivity and selectivity of the sensors~([1]).Among those,metal sulfide is one kind of important materials in biological detection~([2]),carbon-based nanocomposites~([3])have also become promising materials for the application in biosensing due to the excellent stability and synergistic effect between the components in the composites.In this work,a facile chemical procedure capable of aligning CuO nanoparticles on the surface of graphene oxide(GO) in a water-isopropanol system has been demonstrated~([4]),then GO-Cu_8S_5-PPy ternary nanomaterials were fabricated through a one-step hydrothermal reaction.The as-prepared GO-Cu_8S_5-PPy composite showed a higher peroxidase-like catalytic activity resulting from the synergistic effect among the components in the nanocomposites.
引文
[1]Zhu,C.;Yang,G.;Li,H.;Du,D.;Lin,Y.;Anal.Chem.2015,87,230.
[2]Lu,X,;Bian,X.;Li,Z.;Chao,D.;Wang,C.Sci.Rep.,2013,3,2955.
[3]Zhang,Z.;Hao,J.;Yang,W.;Lu B.;Ke,X.;Zhang,B.;Tang,J.ACS Appl.Mater.Interfaces 2013,5,3809.
[4]Zhu.J.;Zeng,G.;Nie,F.;Xu X.;Chen,S.;Han,Q.;Wang,X.Nanoscale,2010,2,988.
