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Updated: Jun 10, 2026

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Hollow Microneedle-based Sensor for Multiplexed Transdermal Electrochemical Sensing
Published on: June 1, 2012
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Constructing nanoneedle arrays of heterostructured RuO2-Co3O4 with tip-effect-induced enrichment of reactants for
Xu Zhang1, Junnan Song1, Tongming Sun2
1Zhejiang Key Laboratory for Island Green Energy and New Materials, Institute of Electrochemistry, School of Materials Science and Engineering, Taizhou University, Taizhou 318000, Zhejiang, China. jnsong@nuaa.edu.cn.
Abstract:
Nanoneedle arrays of heterostructured RuO2-Co3O4 electrocatalysts were constructed, showing improved water oxidation activity and durable stability. The synergy of tip-effect-induced OH- enrichment, superior hydrophilicity, and heterojunction-enhanced electron transfer promotes water oxidation activity.

