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Cited by 485

The DOI matches its Crossref record; 4 of the 4 references it cites were found in a registry or an index.

Strong Electric Field Observed at the Interface of Aqueous Microdroplets

Xiong, Hanqing, Lee, Jae Kyoo, Zare, Richard N., Min, Wei·2020·The Journal of Physical Chemistry Letters
DOI 10.1021/acs.jpclett.0c02061
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Abstract

Chemical reactions in aqueous microdroplets often exhibit unusual kinetic and thermodynamic properties not observed in bulk solution. While an electric field has been implicated at the water interface, there has been no direct measurement in aqueous microdroplets, largely due to the lack of proper measurement tools. Herein, we employ newly developed stimulated Raman excited fluorescence microscopy to measure the electric field at the water–oil interface of microdroplets. As determined by the vibrational Stark effect of a nitrile-bearing fluorescent probe, the strength of the electric field is found to be on the order of 10 7 V/cm. This strong electric field aligns probe dipoles with respect to the interface. The formation of the electric field likely arises from charge separation caused by the adsorption of negative ions at the water–oil interface of microdroplets. We suggest that this strong electric field might account in part for the unique properties of chemical reactions reported in microdroplets.

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Metadata

Authors
Xiong, H., Lee, J. K., Zare, R. N., & Min, W.
Venue
The Journal of Physical Chemistry Letters
Publisher
American Chemical Society (ACS)
Published
2020-08-17
Volume
11
Issue
17
Pages
7423-7428
ISSN
1948-7185 (ISSN-L)
DOI
10.1021/acs.jpclett.0c02061
OpenAlex
W3075563446
Cited by
485
References
4
FWCI
16.37
Type
journal article
Language
en
Open access
closed
Licence
Funders
  • Division of Chemistry (CHE-1904684)
  • Air Force Office of Scientific Research (FA9550-16-1-0113)
  • National Institute of General Medical Sciences (R01 GM132860)

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CoChat. (2026). Citation check: Strong Electric Field Observed at the Interface of Aqueous Microdroplets. https://app.cochat.ai/papers/10.1021/acs.jpclett.0c02061
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Xiong, H., Lee, J. K., Zare, R. N., & Min, W. (2020). Strong Electric Field Observed at the Interface of Aqueous Microdroplets. The Journal of Physical Chemistry Letters. https://doi.org/10.1021/acs.jpclett.0c02061

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.