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Title: From Ion Current to Electroosmotic Flow Rectification in Asymmetric Nanopore Membranes

Abstract

Asymmetrically shaped nanopores have been shown to rectify the ionic current flowing through pores in a fashion similar to a p-n junction in a solid-state diode. Such asymmetric nanopores include conical pores in polymeric membranes and pyramidal pores in mica membranes. We review here both theoretical and experimental aspects of this ion current rectification phenomenon. A simple intuitive model for rectification, stemming from previously published more quantitative models, is discussed. We also review experimental results on controlling the extent and sign of rectification. It was shown that ion current rectification produces a related rectification of electroosmotic flow (EOF) through asymmetric pore membranes. We review results that show how to measure and modulate this EOF rectification phenomenon. Finally, EOF rectification led to the development of an electroosmotic pump that works under alternating current (AC), as opposed to the currently available direct current EOF pumps.Furthermore experimental results on AC EOF rectification are reviewed, and advantages of using AC to drive EOF are discussed.

Authors:
 [1];  [1];  [1]
  1. Univ. of Florida, Gainesville, FL (United States)
Publication Date:
Research Org.:
Energy Frontier Research Centers (EFRC), Washington, D.C. (United States). Nanostructures for Electrical Energy Storage (NEES)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Contributing Org.:
Juliette Experton; Xiaojian Wu; Charles Martin
OSTI Identifier:
1470068
Grant/Contract Number:  
SC0001160
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Nanomaterials
Additional Journal Information:
Journal Volume: 7; Journal Issue: 12; Related Information: NEES partners with University of Maryland (lead); University of California, Irvine; University of Florida; Los Alamos National Laboratory; Sandia National Laboratories; Yale University; Journal ID: ISSN 2079-4991
Publisher:
MDPI
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY; bio-inspired; energy storage (including batteries and capacitors); defects; charge transport; synthesis (novel materials); synthesis (self-assembly); synthesis (scalable processing)

Citation Formats

Experton, Juliette, Wu, Xiaojian, and Martin, Charles R. From Ion Current to Electroosmotic Flow Rectification in Asymmetric Nanopore Membranes. United States: N. p., 2017. Web. doi:10.3390/nano7120445.
Experton, Juliette, Wu, Xiaojian, & Martin, Charles R. From Ion Current to Electroosmotic Flow Rectification in Asymmetric Nanopore Membranes. United States. https://doi.org/10.3390/nano7120445
Experton, Juliette, Wu, Xiaojian, and Martin, Charles R. Thu . "From Ion Current to Electroosmotic Flow Rectification in Asymmetric Nanopore Membranes". United States. https://doi.org/10.3390/nano7120445. https://www.osti.gov/servlets/purl/1470068.
@article{osti_1470068,
title = {From Ion Current to Electroosmotic Flow Rectification in Asymmetric Nanopore Membranes},
author = {Experton, Juliette and Wu, Xiaojian and Martin, Charles R.},
abstractNote = {Asymmetrically shaped nanopores have been shown to rectify the ionic current flowing through pores in a fashion similar to a p-n junction in a solid-state diode. Such asymmetric nanopores include conical pores in polymeric membranes and pyramidal pores in mica membranes. We review here both theoretical and experimental aspects of this ion current rectification phenomenon. A simple intuitive model for rectification, stemming from previously published more quantitative models, is discussed. We also review experimental results on controlling the extent and sign of rectification. It was shown that ion current rectification produces a related rectification of electroosmotic flow (EOF) through asymmetric pore membranes. We review results that show how to measure and modulate this EOF rectification phenomenon. Finally, EOF rectification led to the development of an electroosmotic pump that works under alternating current (AC), as opposed to the currently available direct current EOF pumps.Furthermore experimental results on AC EOF rectification are reviewed, and advantages of using AC to drive EOF are discussed.},
doi = {10.3390/nano7120445},
url = {https://www.osti.gov/biblio/1470068}, journal = {Nanomaterials},
issn = {2079-4991},
number = 12,
volume = 7,
place = {United States},
year = {2017},
month = {12}
}

Journal Article:
Free Publicly Available Full Text
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Cited by: 10 works
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    Works referencing / citing this record:

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