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Modification of alumina matrices through chemical etching and electroless deposition of nano-Au array for amperometric sensing

Abstract

Simple nanoporous alumina matrix modification procedure, in which the electrically highly insulating alumina barrier layer at the bottom of the pores is replaced with the conductive layer of the gold beds, was described. This modification makes possible the direct electron exchange between the underlying aluminum support and the redox species encapsulated in the alumina pores, thus, providing the generic platform for the nanoporous alumina sensors (biosensors) with the direct amperometric signal readout fabrication.

[127] and Supplementary Material 1

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Correspondence to Arūnas Jagminas.

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Jagminas, A., Kuzmarskytė, J., Valinčius, G. et al. Modification of alumina matrices through chemical etching and electroless deposition of nano-Au array for amperometric sensing. Nanoscale Res Lett 2, 130 (2007). https://doi.org/10.1007/s11671-007-9043-y

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Keywords

  • EIS
  • Modification morphology
  • Nanoparticles
  • Porous alumina