Novel methods for the production of silver microelectrode-arrays: their characterisation by atomic force microscopy and application to the electro-reduction of halothane.

A new method is proposed for the simple preparation of random silver micro and nano-electrode arrays. This employs acoustic streaming directed at a glassy carbon surface to "mechanically" attach particles from a suspension of metal colloidal or other small particles. The particles tend to...

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প্রধান লেখক: Simm, A, Ward-Jones, S, Banks, C, Compton, R
বিন্যাস: Journal article
ভাষা:English
প্রকাশিত: 2005
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author Simm, A
Ward-Jones, S
Banks, C
Compton, R
author_facet Simm, A
Ward-Jones, S
Banks, C
Compton, R
author_sort Simm, A
collection OXFORD
description A new method is proposed for the simple preparation of random silver micro and nano-electrode arrays. This employs acoustic streaming directed at a glassy carbon surface to "mechanically" attach particles from a suspension of metal colloidal or other small particles. The particles tend to adhere to the substrate at points of imperfection such as scratches, crevices etc. These arrays are compared with arrays formed by the electro-deposition of silver at a glassy carbon substrate, with the silver being partially stripped off, leaving a stable micro and nanoparticle array on the surface. Both surfaces are characterised using optical and atomic force microscopy. The two types of electrodes are evaluated to their analytical utility via the electrochemical reduction of halothane and their performance compared with that of a silver macroelectrode. A notable increase in sensitivity and peak current is observed.
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spelling oxford-uuid:aa10e346-05d3-4769-a4ca-4d1042c88cc22022-03-27T03:12:42ZNovel methods for the production of silver microelectrode-arrays: their characterisation by atomic force microscopy and application to the electro-reduction of halothane.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:aa10e346-05d3-4769-a4ca-4d1042c88cc2EnglishSymplectic Elements at Oxford2005Simm, AWard-Jones, SBanks, CCompton, RA new method is proposed for the simple preparation of random silver micro and nano-electrode arrays. This employs acoustic streaming directed at a glassy carbon surface to "mechanically" attach particles from a suspension of metal colloidal or other small particles. The particles tend to adhere to the substrate at points of imperfection such as scratches, crevices etc. These arrays are compared with arrays formed by the electro-deposition of silver at a glassy carbon substrate, with the silver being partially stripped off, leaving a stable micro and nanoparticle array on the surface. Both surfaces are characterised using optical and atomic force microscopy. The two types of electrodes are evaluated to their analytical utility via the electrochemical reduction of halothane and their performance compared with that of a silver macroelectrode. A notable increase in sensitivity and peak current is observed.
spellingShingle Simm, A
Ward-Jones, S
Banks, C
Compton, R
Novel methods for the production of silver microelectrode-arrays: their characterisation by atomic force microscopy and application to the electro-reduction of halothane.
title Novel methods for the production of silver microelectrode-arrays: their characterisation by atomic force microscopy and application to the electro-reduction of halothane.
title_full Novel methods for the production of silver microelectrode-arrays: their characterisation by atomic force microscopy and application to the electro-reduction of halothane.
title_fullStr Novel methods for the production of silver microelectrode-arrays: their characterisation by atomic force microscopy and application to the electro-reduction of halothane.
title_full_unstemmed Novel methods for the production of silver microelectrode-arrays: their characterisation by atomic force microscopy and application to the electro-reduction of halothane.
title_short Novel methods for the production of silver microelectrode-arrays: their characterisation by atomic force microscopy and application to the electro-reduction of halothane.
title_sort novel methods for the production of silver microelectrode arrays their characterisation by atomic force microscopy and application to the electro reduction of halothane
work_keys_str_mv AT simma novelmethodsfortheproductionofsilvermicroelectrodearraystheircharacterisationbyatomicforcemicroscopyandapplicationtotheelectroreductionofhalothane
AT wardjoness novelmethodsfortheproductionofsilvermicroelectrodearraystheircharacterisationbyatomicforcemicroscopyandapplicationtotheelectroreductionofhalothane
AT banksc novelmethodsfortheproductionofsilvermicroelectrodearraystheircharacterisationbyatomicforcemicroscopyandapplicationtotheelectroreductionofhalothane
AT comptonr novelmethodsfortheproductionofsilvermicroelectrodearraystheircharacterisationbyatomicforcemicroscopyandapplicationtotheelectroreductionofhalothane