Multifunctional Superhydrophobic Platform for Control of Water Microdroplets by Non-Uniform Electrostatic Field
At the moment, manipulation of liquid microdroplets is required in various microfluidic and lab-on-a-chip devices, as well as advanced sensors. The platforms used for these purposes should provide the possibility of controlled selective movement and coalescence of droplets, and the manipulation spee...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-02-01
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| Series: | Chemosensors |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2227-9040/11/2/120 |
| _version_ | 1827758086787432448 |
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| author | Georgii Pavliuk Alexey Zhizhchenko Oleg Vitrik |
| author_facet | Georgii Pavliuk Alexey Zhizhchenko Oleg Vitrik |
| author_sort | Georgii Pavliuk |
| collection | DOAJ |
| description | At the moment, manipulation of liquid microdroplets is required in various microfluidic and lab-on-a-chip devices, as well as advanced sensors. The platforms used for these purposes should provide the possibility of controlled selective movement and coalescence of droplets, and the manipulation speed should be sufficiently high (more than 10 mm/s). In addition, to facilitate their practical application, such platforms should have a simple planar geometry and low manufacturing cost. We report here a new method for microdroplet manipulation based on the use of non-uniform electrostatic fields. Our platform uses an electrode array embedded in a dielectric planar superhydrophobic substrate (50 × 50 mm). When a voltage is applied to a certain sequence of electrodes, a non-uniform electrostatic field is produced, which acts to attract a droplet on the substrate to the electrodes. This achieves a stepwise movement of the droplet. We realized non-contact, selective and high speed (up to 80 mm/s) movement of the individual droplets along specified trajectories (like a chess game) and their selective coalescence. It allowed us to demonstrate several controllable chemical reactions including an analytical one. In our opinion, this approach has a huge potential for chemical technology applications, especially in advanced sensors. |
| first_indexed | 2024-03-11T08:59:40Z |
| format | Article |
| id | doaj.art-243b4caca42c4648b6bb078c11ab9596 |
| institution | Directory Open Access Journal |
| issn | 2227-9040 |
| language | English |
| last_indexed | 2024-03-11T08:59:40Z |
| publishDate | 2023-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Chemosensors |
| spelling | doaj.art-243b4caca42c4648b6bb078c11ab95962023-11-16T19:46:34ZengMDPI AGChemosensors2227-90402023-02-0111212010.3390/chemosensors11020120Multifunctional Superhydrophobic Platform for Control of Water Microdroplets by Non-Uniform Electrostatic FieldGeorgii Pavliuk0Alexey Zhizhchenko1Oleg Vitrik2Institute of High Technologies and Advanced Materials, Far Eastern Federal University, 8 Sukhanova St., 690950 Vladivostok, RussiaInstitute for Automation and Control Processes, 5 Radio St., 690041 Vladivostok, RussiaInstitute for Automation and Control Processes, 5 Radio St., 690041 Vladivostok, RussiaAt the moment, manipulation of liquid microdroplets is required in various microfluidic and lab-on-a-chip devices, as well as advanced sensors. The platforms used for these purposes should provide the possibility of controlled selective movement and coalescence of droplets, and the manipulation speed should be sufficiently high (more than 10 mm/s). In addition, to facilitate their practical application, such platforms should have a simple planar geometry and low manufacturing cost. We report here a new method for microdroplet manipulation based on the use of non-uniform electrostatic fields. Our platform uses an electrode array embedded in a dielectric planar superhydrophobic substrate (50 × 50 mm). When a voltage is applied to a certain sequence of electrodes, a non-uniform electrostatic field is produced, which acts to attract a droplet on the substrate to the electrodes. This achieves a stepwise movement of the droplet. We realized non-contact, selective and high speed (up to 80 mm/s) movement of the individual droplets along specified trajectories (like a chess game) and their selective coalescence. It allowed us to demonstrate several controllable chemical reactions including an analytical one. In our opinion, this approach has a huge potential for chemical technology applications, especially in advanced sensors.https://www.mdpi.com/2227-9040/11/2/120droplet manipulationelectrostaticssuperhydrophobic surfaces |
| spellingShingle | Georgii Pavliuk Alexey Zhizhchenko Oleg Vitrik Multifunctional Superhydrophobic Platform for Control of Water Microdroplets by Non-Uniform Electrostatic Field Chemosensors droplet manipulation electrostatics superhydrophobic surfaces |
| title | Multifunctional Superhydrophobic Platform for Control of Water Microdroplets by Non-Uniform Electrostatic Field |
| title_full | Multifunctional Superhydrophobic Platform for Control of Water Microdroplets by Non-Uniform Electrostatic Field |
| title_fullStr | Multifunctional Superhydrophobic Platform for Control of Water Microdroplets by Non-Uniform Electrostatic Field |
| title_full_unstemmed | Multifunctional Superhydrophobic Platform for Control of Water Microdroplets by Non-Uniform Electrostatic Field |
| title_short | Multifunctional Superhydrophobic Platform for Control of Water Microdroplets by Non-Uniform Electrostatic Field |
| title_sort | multifunctional superhydrophobic platform for control of water microdroplets by non uniform electrostatic field |
| topic | droplet manipulation electrostatics superhydrophobic surfaces |
| url | https://www.mdpi.com/2227-9040/11/2/120 |
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