Momotenko, Dmitry, Page, Ashley M., Adobes Vidal, Maria and Unwin, Patrick R. (2016) Write-read 3D patterning with a dual-channel nanopipette. ACS Nano, 10 (9). pp. 8871-8878. doi:10.1021/acsnano.6b04761 ISSN 1936-0851.

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Abstract

Nanopipettes are becoming extremely versatile and powerful tools in nanoscience for a wide variety of applications from imaging to nanoscale sensing. Herein, the capabilities of nanopipettes to architect and build complex free-standing three-dimensional (3D) nanostructures are demonstrated using a simple double-barrel nanopipette device. Electrochemical control of ionic fluxes enables highly localized delivery of precursor species from one channel and simultaneous (dynamic and responsive) ion conductance probe-to-substrate distance feedback with the other for reliable high-quality patterning. Nanopipettes with 30−50 nm tip opening dimensions of each channel allowed confinement of ionic fluxes for the fabrication of high aspect ratio copper pillars, zigzag and Γ-like structures, as well as permitting the subsequent topographical mapping of the patterned features with the same nanopipette probe as used for nanostructure engineering. This approach offers versatility and robustness for high resolution 3D “printing” (writing) and read-out at the nanoscale.

Item Type:	Journal Article
Subjects:	Q Science > QD Chemistry
Divisions:	Faculty of Science, Engineering and Medicine > Science > Chemistry Faculty of Science, Engineering and Medicine > Research Centres > Molecular Organisation and Assembly in Cells (MOAC)
Library of Congress Subject Headings (LCSH):	Electrochemical apparatus
Journal or Publication Title:	ACS Nano
Publisher:	American Chemical Society
ISSN:	1936-0851
Official Date:	27 September 2016
Dates:	Date Event 27 September 2016 Published 29 August 2016 Available 28 August 2016 Accepted 17 July 2016 Submitted
Volume:	10
Number:	9
Page Range:	pp. 8871-8878
DOI:	10.1021/acsnano.6b04761
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:	29 August 2017
Funder:	Marie Curie Intra-European Fellowship (IEF), Seventh Framework Programme (European Commission) (FP7), Engineering and Physical Sciences Research Council (EPSRC), University of Warwick. Molecular Organisation and Assembly in Cells
Grant number:	626158 (IEF), 316630 (FP7), EP/F500378/1 (EPSRC)

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