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      Fabrication of hybrid CuO/Pt/Si nanoarray for non-enzymatic glucose sensing

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      Author
      Liu, Zhaona
      Yadian, Boluo
      Liu, Hai
      Liu, Chao
      Zhang, Bowei
      Ramanujan, R.V.
      Huang, Yizhong
      Date of Issue
      2013
      School
      School of Materials Science and Engineering
      Abstract
      Ordered mushroom-like hybrid CuO/Pt/Si nanoarrays were fabricated using ion etching followed by the electrochemical method. The process started with patterning the surface of a Si (100) substrate coated with a thin layer of Pt, forming a hybrid array of nanoneedles. Each nanoneedle consists of a Pt nanodot sitting on top of a Si nanorod. Cu nanosphere was subsequently grown on the surface of each Pt dot and then oxidized to CuO by the method of continuous cyclic voltammetry in NaOH solution. Meanwhile, the multiple redox cycles produce a rough and porous surface on these CuO nanospheres, which significantly increases the contact area of the nanosphere surfaces with the external environments. This unique nanostructure array shows excellent electrochemical sensitivity to glucose detection.
      Subject
      Electrodeposition
      Hybrid nanoarray
      Type
      Journal Article
      Series/Journal Title
      Electrochemistry Communications
      Rights
      © 2013 Elsevier.
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      • MSE Journal Articles
      http://dx.doi.org/10.1016/j.elecom.2013.05.006
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