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Frontiers in nanoscale electrochemical imaging : faster, multifunctional and ultrasensitive
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Kang, Minkyung, Momotenko, Dmitry, Page, Ashley M., Perry, David and Unwin, Patrick R. (2016) Frontiers in nanoscale electrochemical imaging : faster, multifunctional and ultrasensitive. Langmuir, 32 (32). pp. 7993-8008. doi:10.1021/acs.langmuir.6b01932 ISSN 0743-7463.
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Official URL: http://dx.doi.org/10.1021/acs.langmuir.6b01932
Abstract
A wide range of interfacial physicochemical processes, from electrochemistry to the functioning of living cells involve spatially localized chemical fluxes that are associated with specific features of the interface. Scanning electrochemical probe microscopes (SEPMs) represent a powerful means of visualizing interfacial fluxes, and this Feature Article highlights recent developments that have radically advanced the speed, spatial resolution, functionality and sensitivity of SEPMs. A major trend has been a coming together of SEPMs that developed independently, and the use of established SEPMs in completely new ways, greatly expanding their scope and impact. The focus is on nanopipette-based SEPMs, including scanning ion conductance microscopy (SICM), scanning electrochemical cell microscopy (SECCM), and hybrid techniques thereof, particularly with scanning electrochemical microscopy (SECM). Nanopipette-based probes are made easily, quickly and cheaply with tunable characteristics. They are reproducible and can be fully characterized, and their reponse can be modeled in considerable detail, so that quantitative maps of chemical fluxes and other properties (e.g. local charge) can be obtained and analyzed. This article provides an overview on the use of these probes for high speed imaging, to create movies of electrochemical processes in action, to carry out multifunctional mapping, such as simultaneous topography-charge and topography-activity, and to create nanoscale electrochemical cells for the detection, trapping and analysis of single entities, particularly individual molecules and nanoparticles (NPs). These studies provide a platform for the further application and diversification of SEPMs across a wide range of interfacial science.
Item Type: | Journal Article | ||||||||||
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Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering | ||||||||||
Divisions: | Faculty of Science, Engineering and Medicine > Science > Chemistry Faculty of Science, Engineering and Medicine > Research Centres > Molecular Organisation and Assembly in Cells (MOAC) |
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Library of Congress Subject Headings (LCSH): | Nanoelectronics | ||||||||||
Journal or Publication Title: | Langmuir | ||||||||||
Publisher: | American Chemical Society | ||||||||||
ISSN: | 0743-7463 | ||||||||||
Official Date: | 11 July 2016 | ||||||||||
Dates: |
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Volume: | 32 | ||||||||||
Number: | 32 | ||||||||||
Number of Pages: | 16 | ||||||||||
Page Range: | pp. 7993-8008 | ||||||||||
DOI: | 10.1021/acs.langmuir.6b01932 | ||||||||||
Status: | Peer Reviewed | ||||||||||
Publication Status: | Published | ||||||||||
Access rights to Published version: | Restricted or Subscription Access | ||||||||||
Date of first compliant deposit: | 14 September 2016 | ||||||||||
Date of first compliant Open Access: | 11 July 2017 | ||||||||||
Funder: | European Research Council (ERC), Marie Curie Intra-European Fellowship (IEF), Engineering and Physical Sciences Research Council (EPSRC), University of Warwick. Molecular Organisation and Assembly in Cells | ||||||||||
Grant number: | 247143 (ERC), 26158 (ERC), EP/F500378/1 (EPSRC) |
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