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

  • Arūnas Jagminas1Email author,

    Affiliated with

    • Julijana Kuzmarskytė1,

      Affiliated with

      • Gintaras Valinčius2,

        Affiliated with

        • Luciana Malferrari3 and

          Affiliated with

          • Albertas Malinauskas1

            Affiliated with

            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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