{"title":"集成微电极阵列的介电泳膜过滤过程","authors":"Shahnawaz Molla, S. Bhattacharjee, J. Masliyah","doi":"10.1109/ICMENS.2004.54","DOIUrl":null,"url":null,"abstract":"A coupled AC dielectrophoretic membrane filtration technique is proposed in this paper.This technique utilizes ACdielectrophoresis and preferential transport through a semi-permeable membrane. Simultaneous application of ACdielectrophoresis and membrane filtration can be used for separation of trace amounts of a target species from an emulsion. This can be achieved by embedding inter-digitated microelectrode arrays on a membrane surface used in a cross flow filtration system. The electrode array, when actuated by an AC signal, will create a dielectrophoretic force field to capture the target species onto the membrane surface from the flowing emulsion during cross flow filtration. This paper explains the theoretical principles underlying such a process, and describes a simple mathematical framework based on trajectory analysis for assessing the separation efficiency of the technique. Simulation results indicate that preferential transport of the emulsified water through themembrane in a cross flow filtration device can be significantly enhanced by incorporating an AC dielectrophoretic field in the process. The novel technique proposed here can lead to a highly efficient continuous separation process for dilute emulsions.","PeriodicalId":344661,"journal":{"name":"2004 International Conference on MEMS, NANO and Smart Systems (ICMENS'04)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2004-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Dielectrophoretic Membrane Filtration Process by Integrating Microelectrode Array\",\"authors\":\"Shahnawaz Molla, S. Bhattacharjee, J. Masliyah\",\"doi\":\"10.1109/ICMENS.2004.54\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"A coupled AC dielectrophoretic membrane filtration technique is proposed in this paper.This technique utilizes ACdielectrophoresis and preferential transport through a semi-permeable membrane. Simultaneous application of ACdielectrophoresis and membrane filtration can be used for separation of trace amounts of a target species from an emulsion. This can be achieved by embedding inter-digitated microelectrode arrays on a membrane surface used in a cross flow filtration system. The electrode array, when actuated by an AC signal, will create a dielectrophoretic force field to capture the target species onto the membrane surface from the flowing emulsion during cross flow filtration. This paper explains the theoretical principles underlying such a process, and describes a simple mathematical framework based on trajectory analysis for assessing the separation efficiency of the technique. Simulation results indicate that preferential transport of the emulsified water through themembrane in a cross flow filtration device can be significantly enhanced by incorporating an AC dielectrophoretic field in the process. The novel technique proposed here can lead to a highly efficient continuous separation process for dilute emulsions.\",\"PeriodicalId\":344661,\"journal\":{\"name\":\"2004 International Conference on MEMS, NANO and Smart Systems (ICMENS'04)\",\"volume\":\"6 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2004-08-25\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2004 International Conference on MEMS, NANO and Smart Systems (ICMENS'04)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ICMENS.2004.54\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2004 International Conference on MEMS, NANO and Smart Systems (ICMENS'04)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICMENS.2004.54","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Dielectrophoretic Membrane Filtration Process by Integrating Microelectrode Array
A coupled AC dielectrophoretic membrane filtration technique is proposed in this paper.This technique utilizes ACdielectrophoresis and preferential transport through a semi-permeable membrane. Simultaneous application of ACdielectrophoresis and membrane filtration can be used for separation of trace amounts of a target species from an emulsion. This can be achieved by embedding inter-digitated microelectrode arrays on a membrane surface used in a cross flow filtration system. The electrode array, when actuated by an AC signal, will create a dielectrophoretic force field to capture the target species onto the membrane surface from the flowing emulsion during cross flow filtration. This paper explains the theoretical principles underlying such a process, and describes a simple mathematical framework based on trajectory analysis for assessing the separation efficiency of the technique. Simulation results indicate that preferential transport of the emulsified water through themembrane in a cross flow filtration device can be significantly enhanced by incorporating an AC dielectrophoretic field in the process. The novel technique proposed here can lead to a highly efficient continuous separation process for dilute emulsions.