Open Access

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

  • Arūnas Jagminas1Email author,
  • Julijana Kuzmarskytė1,
  • Gintaras Valinčius2,
  • Luciana Malferrari3 and
  • Albertas Malinauskas1
Nanoscale Research Letters20072:130

DOI: 10.1007/s11671-007-9043-y

Received: 29 December 2006

Accepted: 26 January 2007

Published: 2 March 2007

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.

Keywords

EIS Modification morphology Nanoparticles Porous alumina

[127] and Supplementary Material 1

Declarations

Authors’ Affiliations

(1)
Institute of Chemistry
(2)
Institute of Biochemistry
(3)
Instituto Nacionale di Fisica Nucleare

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© to the authors 2007