Journal of Materials Science

, Volume 53, Issue 10, pp 7138–7149 | Cite as

Zn–ZnO@TiO2 nanocomposite: a direct electrode for nonenzymatic biosensors

  • Zhen Liang
  • Xiaojun Zhang


In this article, TiO2-modified ZnO nanotube arrays (NTAs) are successfully synthesized and used to prepare a nonenzymatic biosensor for the detection of glucose and hydrazine hydrate. In brief, the ZnO@TiO2 NTAs are synthesized on zinc foil by two steps of simple hydrothermal method. Therefore, it can be directly used as a working electrode and is not needed to be modified to other electrode surface by any means to form a sensor. In the oxidation of glucose and reduction reaction of hydrazine hydrate, it exhibits excellent electrocatalytic performance. Moreover, it has high sensitivity, a fast response time (less than 3 s), and a detection limit as low as 0.5 μM (S/N = 3) toward glucose and hydrazine hydrate respectively. In the selectivity of the target analyte, the Zn–ZnO@TiO2 nanocomposite electrode can effectively resist the influence of different interferent, including uric acid, dopamine, and l-cysteine.



This work is financially supported by the projects (Nos. 21371007 and 21675001) from National Natural Science Foundation of China, Anhui Provincial Natural Science Foundation for Distinguished Youth (1408085J03), the Programs for Science and Technology Development of Anhui Province (1501021019, 1604a0902180), and the Program for Innovative Research Team at Anhui Normal University.

Supplementary material

10853_2018_2106_MOESM1_ESM.doc (10.9 mb)
Supplementary material 1 (DOC 11169 kb)


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Authors and Affiliations

  1. 1.Key Laboratory for Functional Molecular Solids of the Education Ministry of China, College of Chemistry and Materials Science, Center for Nano Science and TechnologyAnhui Normal UniversityWuhuPeople’s Republic of China

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