基于微流控芯片的SAW分选技术研究现状  

Research Status on the SAW Sorting Technology Based on Microfluidic Chips

作　　者：刘国君[1] 何芳 马祥 王记波 李新波[2] 刘建芳[1] Liu Guojun;He Fang;Ma Xiang;Wang Jibo;Li Xinbo;Liu Jianfang(College of Mechanical Science and Engineering;College of Communication Engineering,Jilin University,Changchun 130025,China)

机构地区：[1]吉林大学机械科学与工程学院,长春130025 [2]吉林大学通信工程学院,长春130025

出　　处：《微纳电子技术》2018年第9期642-651,共10页Micronanoelectronic Technology

基　　金：国家自然科学基金资助项目(51375207);吉林省自然科学基金-学科布局项目(20170101136JC)

摘　　要：声表面波（SAW）分选技术因其无接触性、生物相容性好等特点,在生物医学、诊断学等领域有着广阔的应用前景。概述了声表面波分选芯片的基本结构组成、叉指换能器（IDT）的基本结构及工作原理,分析了行波声表面波（TSAW）和驻波声表面波（SSAW）进入流体后产生的复杂的声流效应。根据声表面波分选技术的分选机理不同,将声表面波分选技术分为驻波声表面波分选技术和行波声表面波分选技术。分别讨论了声表面波分选技术的分选原理和研究现状,指出了声表面波分选技术相对于其他分选技术的优势,并综合国内外研究现状分析了研究过程中存在的问题,提出了声表面波分选技术今后的研究方向。Due to the surface acoustic wave（SAW）sorting technology with non-contact,good biocompatibility and other characteristics,it has broad application prospects in biomedicine,diagnostics and other fields.The basic structure of the SAW sorting chip,the basic structure and working principle of the interdigital transducer（IDT）are overviewed,and the complicated acoustic flow effect caused by travelling surface acoustic wave（TSAW）and standing surface acoustic wave（SSAW）entering fluid is analyzed.According to the different sorting mechanisms of the SAW sorting technology,the SAW sorting technology is divided into SSAW sorting technology and TSAW sorting technology.The sorting principle and research status of the SAW sorting technology are discussed,the advantages of SAW sorting technology over other sorting technologies are pointed out.The existing problems in the research process are analyzed by integrating the research status at home and abroad,and the research direction of the SAW sorting technology in the future is presented.

关 键 词：声表面波(SAW) 分选技术 微流控芯片 叉指换能器(IDT) 驻波声表面波(SSAW) 行波声表面波(TSAW) 

分 类 号：TH703[机械工程—仪器科学与技术]