Development of a Multi-Stage Electroosmotic Flow Pump Using Liquid Metal Electrodes
Injection of liquid metal into a polydimethylsiloxane (PDMS) channel can provide a simple, cheap, and fast method to fabricate a noncontact electrode for micro electroosmotic flow (EOF) pumps. In this study, a multi-stage EOF pump using liquid metal noncontact electrodes was proposed and demonstrate...
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| Format: | Article |
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MDPI AG
2016-09-01
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| Series: | Micromachines |
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| Online Access: | http://www.mdpi.com/2072-666X/7/9/165 |
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| author | Meng Gao Lin Gui |
| author_facet | Meng Gao Lin Gui |
| author_sort | Meng Gao |
| collection | DOAJ |
| description | Injection of liquid metal into a polydimethylsiloxane (PDMS) channel can provide a simple, cheap, and fast method to fabricate a noncontact electrode for micro electroosmotic flow (EOF) pumps. In this study, a multi-stage EOF pump using liquid metal noncontact electrodes was proposed and demonstrated for high-flow-velocity applications. To test the pumping performance of this EOF pump and measure the flow velocity, fluorescent particles were added into deionized (DI) water to trace the flow. According to the experimental results, the pump with a five-stage design can drive a water flow of 5.57 μm/s at 10 V, while the PDMS gap between the electrode and the pumping channel is 20 μm. To provide the guidance for the pump design, parametric studies were performed and fully discussed, such as the PDMS gap, pumping channel dimension, and stage number. This multi-stage EOF pump shows potential for many high-flow-velocity microfluidic applications. |
| first_indexed | 2024-12-10T08:28:13Z |
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| id | doaj.art-c126311665814f4886b44c3f62c83d0e |
| institution | Directory Open Access Journal |
| issn | 2072-666X |
| language | English |
| last_indexed | 2024-12-10T08:28:13Z |
| publishDate | 2016-09-01 |
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| spelling | doaj.art-c126311665814f4886b44c3f62c83d0e2022-12-22T01:56:11ZengMDPI AGMicromachines2072-666X2016-09-017916510.3390/mi7090165mi7090165Development of a Multi-Stage Electroosmotic Flow Pump Using Liquid Metal ElectrodesMeng Gao0Lin Gui1Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, 29 Zhongguancun East Road, Haidian District, Beijing 100190, ChinaKey Laboratory of Cryogenics, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, 29 Zhongguancun East Road, Haidian District, Beijing 100190, ChinaInjection of liquid metal into a polydimethylsiloxane (PDMS) channel can provide a simple, cheap, and fast method to fabricate a noncontact electrode for micro electroosmotic flow (EOF) pumps. In this study, a multi-stage EOF pump using liquid metal noncontact electrodes was proposed and demonstrated for high-flow-velocity applications. To test the pumping performance of this EOF pump and measure the flow velocity, fluorescent particles were added into deionized (DI) water to trace the flow. According to the experimental results, the pump with a five-stage design can drive a water flow of 5.57 μm/s at 10 V, while the PDMS gap between the electrode and the pumping channel is 20 μm. To provide the guidance for the pump design, parametric studies were performed and fully discussed, such as the PDMS gap, pumping channel dimension, and stage number. This multi-stage EOF pump shows potential for many high-flow-velocity microfluidic applications.http://www.mdpi.com/2072-666X/7/9/165electroosmotic flow pumpliquid metal electrodesmicrofluidics |
| spellingShingle | Meng Gao Lin Gui Development of a Multi-Stage Electroosmotic Flow Pump Using Liquid Metal Electrodes Micromachines electroosmotic flow pump liquid metal electrodes microfluidics |
| title | Development of a Multi-Stage Electroosmotic Flow Pump Using Liquid Metal Electrodes |
| title_full | Development of a Multi-Stage Electroosmotic Flow Pump Using Liquid Metal Electrodes |
| title_fullStr | Development of a Multi-Stage Electroosmotic Flow Pump Using Liquid Metal Electrodes |
| title_full_unstemmed | Development of a Multi-Stage Electroosmotic Flow Pump Using Liquid Metal Electrodes |
| title_short | Development of a Multi-Stage Electroosmotic Flow Pump Using Liquid Metal Electrodes |
| title_sort | development of a multi stage electroosmotic flow pump using liquid metal electrodes |
| topic | electroosmotic flow pump liquid metal electrodes microfluidics |
| url | http://www.mdpi.com/2072-666X/7/9/165 |
| work_keys_str_mv | AT menggao developmentofamultistageelectroosmoticflowpumpusingliquidmetalelectrodes AT lingui developmentofamultistageelectroosmoticflowpumpusingliquidmetalelectrodes |