{"title":"一种基于超声空化气泡的微流体驱动方法","authors":"Fangyi Wang, Liang Wang, Jiamei Jin","doi":"10.1109/SPAWDA48812.2019.9019300","DOIUrl":null,"url":null,"abstract":"The applications of traditional thermal bubble microfluidic driving methods are limited by high local heat. To overcome this problem, a novel microfluidic driving method based on ultrasonic cavitation bubbles is proposed in this paper. A piezoelectric transducer is employed instead of thermal method, to generate ultrasonic cavitation bubbles, in this case, the flow rate can be extremely low but continuous, without heat problems. A prototype based on this principle has been designed, fabricated and tested, showing a minimal flow rate of 0.1873 nL/min with 80Vpp applied voltage, and a maximal valid flow rate of 17.741 nL/min with 130Vpp applied voltage at the frequency of 23.78kHz.","PeriodicalId":208819,"journal":{"name":"2019 14th Symposium on Piezoelectrcity, Acoustic Waves and Device Applications (SPAWDA)","volume":"108 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"A Microfluidic Driving Method based on Ultrasonic Cavitation Bubbles\",\"authors\":\"Fangyi Wang, Liang Wang, Jiamei Jin\",\"doi\":\"10.1109/SPAWDA48812.2019.9019300\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The applications of traditional thermal bubble microfluidic driving methods are limited by high local heat. To overcome this problem, a novel microfluidic driving method based on ultrasonic cavitation bubbles is proposed in this paper. A piezoelectric transducer is employed instead of thermal method, to generate ultrasonic cavitation bubbles, in this case, the flow rate can be extremely low but continuous, without heat problems. A prototype based on this principle has been designed, fabricated and tested, showing a minimal flow rate of 0.1873 nL/min with 80Vpp applied voltage, and a maximal valid flow rate of 17.741 nL/min with 130Vpp applied voltage at the frequency of 23.78kHz.\",\"PeriodicalId\":208819,\"journal\":{\"name\":\"2019 14th Symposium on Piezoelectrcity, Acoustic Waves and Device Applications (SPAWDA)\",\"volume\":\"108 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2019-11-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2019 14th Symposium on Piezoelectrcity, Acoustic Waves and Device Applications (SPAWDA)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/SPAWDA48812.2019.9019300\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2019 14th Symposium on Piezoelectrcity, Acoustic Waves and Device Applications (SPAWDA)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/SPAWDA48812.2019.9019300","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A Microfluidic Driving Method based on Ultrasonic Cavitation Bubbles
The applications of traditional thermal bubble microfluidic driving methods are limited by high local heat. To overcome this problem, a novel microfluidic driving method based on ultrasonic cavitation bubbles is proposed in this paper. A piezoelectric transducer is employed instead of thermal method, to generate ultrasonic cavitation bubbles, in this case, the flow rate can be extremely low but continuous, without heat problems. A prototype based on this principle has been designed, fabricated and tested, showing a minimal flow rate of 0.1873 nL/min with 80Vpp applied voltage, and a maximal valid flow rate of 17.741 nL/min with 130Vpp applied voltage at the frequency of 23.78kHz.
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