基于介电润湿的微流控液滴定位与反馈系统研究Research on microfluidic dropletpositioning and feedback system based on dielectric wetting
罗智杰,罗健坤,路亚旭,赵稳稳,谢淑婷,周国富
摘要(Abstract):
基于介电润湿效应的数字微流控技术是近年来出现的一种能够在平面上操控体积为微升、纳升级别液滴的新技术。针对目前对微流控精准驱动与控制的迫切需求,从介电润湿驱动机理分析入手,开展微量液滴驱动理论研究,设计实现了一款低电压驱动微流控芯片。同时通过建立液滴模型与分析液滴连续运动的特性,提出一个改进的芯片-液滴等效电容系统模型。根据这个模型,设计一套高智能化和精确度的液滴运动定位反馈系统。液滴移动实验表明设计的液滴定位反馈系统能精确地定位液滴当前的运动位置与状态。实时地把定位信息准确地反馈到驱动系统,提高了液滴移动的连续性和液滴移动速度。
关键词(KeyWords): 介电润湿;微流控;等效电容系统;液滴驱动理论;液滴模型;液滴运动定位
基金项目(Foundation): 国家重点研发计划项目资助(2016YFB0401502);; 教育部“长江学者和创新团队发展计划”(IRT13064);; 广东省引进创新科研团队计划资助(2011D039);; 广东省科技计划项目资助(2014A030308013);广东省科技计划项目资助(2014B090914004);广东省科技计划项目资助(2016B090918083);; 广东省引进第四批领军人才专项资金项目资助(2014年);; 深圳市科技计划项目资助(201507213000077)~~
作者(Author): 罗智杰,罗健坤,路亚旭,赵稳稳,谢淑婷,周国富
DOI: 10.16652/j.issn.1004-373x.2018.08.005
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