An On‐Chip Liquid Metal Plug Generator
Abstract: Gallium‐based liquid metal nonspherical droplets (plugs) have seen increasing demand recently mainly because their high aspect ratios make them beneficial for a wide range of applications, including microelectromechanical systems (MEMS), microfluidics, sensor technology, radio‐frequency devices, actuators, and switches. However, reproducibility of the generation of such plugs, as well as precise control over their size, is yet challenging. In this work, a simple on‐chip liquid metal plug generator using a commercially available 3D microprinter is presented and the plug generator in poly (dimethylsiloxane) is replicated via soft lithography. Liquid metal plugs are generated via a combination of electrochemical oxidation, design of well‐defined constrictions based on Laplace pressure, and the application of modulated voltage control signals. It is shown that plugs of various aspect ratios can be generated reproducibly for channel widths of 0.5, 0.8, and 1.5 mm with constriction widths of 0.1 mm at 6 V. Laplace‐pressure‐controlled plugs in constricted channels are compared to modulated‐voltage‐generated plugs in straight channels showing that this technique provides significantly enhanced reproducibility and control over the size and spacing between the plugs. This work paves the way to sub‐millimeter liquid metal plugs generated directly on‐chip for on‐demand MEMS and microfluidic applications.
- Location
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Deutsche Nationalbibliothek Frankfurt am Main
- Extent
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Online-Ressource
- Language
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Englisch
- Bibliographic citation
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An On‐Chip Liquid Metal Plug Generator ; day:02 ; month:05 ; year:2022 ; extent:12
Advanced materials ; (02.05.2022) (gesamt 12)
- Creator
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Bhagwat, Sagar
O'Brien, Ciarán
Hamza, Ahmed
Sharma, Shatakshi
Rein, Christof
Sanjaya, Mario
Helmer, Dorothea
Kotz‐Helmer, Frederik
Pezeshkpour, Pegah
Rapp, Bastian E.
- DOI
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10.1002/adma.202201469
- URN
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urn:nbn:de:101:1-2022050315085279765473
- Rights
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Last update
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15.08.2025, 7:35 AM CEST
Data provider
Deutsche Nationalbibliothek. If you have any questions about the object, please contact the data provider.
Associated
- Bhagwat, Sagar
- O'Brien, Ciarán
- Hamza, Ahmed
- Sharma, Shatakshi
- Rein, Christof
- Sanjaya, Mario
- Helmer, Dorothea
- Kotz‐Helmer, Frederik
- Pezeshkpour, Pegah
- Rapp, Bastian E.
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Entwicklung eines Biosensorarray-Systems auf der Basis von akustischen Oberflächenwellensensoren mit integrierter einwegtauglicher Mikrofluidik
On-chip bioelectronic platforms for direct current stimulation of single cells, cell collectives, and tissues
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On‐Chip Chemical Synthesis Using One‐Step 3D Printed Polyperfluoropolyether
Deterministic lateral displacement microfluidic chip for minicell purification
Scanning‐Laser‐Based Microstereolithography of Microfluidic Chips with Micron Resolution
Hand Gesture Recognition Using Frequency‐Modulated Continuous Wave Radar on Tactile Displays for the Visually Impaired
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An on‐chip liquid metal plug generator
Entwicklung eines Biosensorarray-Systems auf der Basis von akustischen Oberflächenwellensensoren mit integrierter einwegtauglicher Mikrofluidik
On-chip bioelectronic platforms for direct current stimulation of single cells, cell collectives, and tissues
Entwicklung eines Biosensorarray-Systems auf der Basis von akustischen Oberflächenwellensensoren mit integrierter einwegtauglicher Mikrofluidik
On‐Chip Chemical Synthesis Using One‐Step 3D Printed Polyperfluoropolyether
Deterministic lateral displacement microfluidic chip for minicell purification
Scanning‐Laser‐Based Microstereolithography of Microfluidic Chips with Micron Resolution
Hand Gesture Recognition Using Frequency‐Modulated Continuous Wave Radar on Tactile Displays for the Visually Impaired
Mikrowellen-Dielektrometrie hochresistenter Biofilme und mikrowelleninduzierte Membranporation
Natural fiber-reinforced composite incorporated with anhydride-cured epoxidized linseed-oil resin and atmospheric pressure plasma-treated flax fibers
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