Advances and Applications of Liquid Electrodes

A special issue of Micromachines (ISSN 2072-666X). This special issue belongs to the section "C:Chemistry".

Deadline for manuscript submissions: closed (30 April 2023) | Viewed by 1718

Special Issue Editors


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Guest Editor
Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100864, China
Interests: microfluidic; lab-on-chip devices; electrophoresis
Special Issues, Collections and Topics in MDPI journals
Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology School of Environmental Science and Engineering, Sun Yat-sen University, Higher Education Mega Center, Guangzhou 510275, China
Interests: (bio)colloid transport and fate in aquatic systems; on-chip bio-sensing device; wastewater process modeling; data driven approach

Special Issue Information

Dear Colleagues,

Electrodes play an important role in electrical microdevices. How to fabricate precise and suitable electrodes in microdevices are always decisive for the realization of the functions. Compared with solid electrodes, liquid electrodes have no fixed shape by themselves and can be easily injected into microchannels or micro spaces of any shape to complete a variety of functions. At present, liquid electrodes have attracted more and more attention and play a very important role in many fields such as microsensors, micro pumps, fuel cells, wearable/flexible devices, etc. Many materials, such as ionic liquids, liquid metals, and conductive solutions, have been extensively studied as alternatives to conventional solid electrodes and found unique applications in these research fields. Accordingly, this Special Issue seeks to showcase research papers, short communications, and review articles that focus on novel research or applications of any liquid electrodes.

Prof. Dr. Lin Gui
Dr. Chao Jin
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Micromachines is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • liquid electrodes
  • liquid metal
  • 3D electrodes
  • micro devices
  • micro sensors

Published Papers (1 paper)

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13 pages, 16939 KiB  
Technical Note
Pressure Driven Rapid Reconfigurable Liquid Metal Patterning
by Bingxin Liu, Peng Qin, Mingyang Liu, Wei Liu, Pan Zhang, Zi Ye, Zhongshan Deng, Zhenming Li and Lin Gui
Micromachines 2023, 14(4), 717; https://doi.org/10.3390/mi14040717 - 23 Mar 2023
Cited by 1 | Viewed by 1383
Abstract
This paper proposes a method for pressure driven rapid reconfigurable liquid metal patterning. A sandwich structure of “pattern—film—cavity” is designed to complete this function. Both sides of the highly elastic polymer film are bonded with two PDMS slabs. One PDMS slab has microchannels [...] Read more.
This paper proposes a method for pressure driven rapid reconfigurable liquid metal patterning. A sandwich structure of “pattern—film—cavity” is designed to complete this function. Both sides of the highly elastic polymer film are bonded with two PDMS slabs. One PDMS slab has microchannels patterned on the surface. The other PDMS slab has a large cavity on its surface for liquid metal storage. These two PDMS slabs are bonded together, face to face, with the polymer film in the middle. In order to control the distribution of the liquid metal in the microfluidic chip, the elastic film will deform under the high pressure of the working medium in the microchannels and then extrude the liquid metal into different patterns in the cavity. This paper studies the factors of liquid metal patterning in detail, including external control conditions, such as the type and pressure of the working medium and the critical dimensions of the chip structure. Moreover, both a single-pattern and a double-pattern chip are fabricated in this paper, which can form or reconfigure the liquid metal pattern within 800 ms. Based on the above methods, reconfigurable antennas of two frequencies are designed and fabricated. Meanwhile, their performance is simulated and tested by simulation and vector network tests. The operating frequencies of the two antennas are respectively significantly switching between 4.66 GHz and 9.97 GHz. Full article
(This article belongs to the Special Issue Advances and Applications of Liquid Electrodes)
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