微通道内的液晶微流控技术及其应用  

Liquid crystal microfluidic technology within microchannels and its applications

作　　者：李世隆 陈鹭剑 LI Shilong;CHEN Lujian(Department of Electronic Engineering,School of Electronic Science and Engineering,Xiamen University,Xiamen 361104,China;Fujian Key Laboratory of Ultrafast Laser Technology and Applications,Xiamen University,Xiamen 361104,China;Department of Electrical and Electronic Engineering,College of Engineering,Southern University of Science and Technology,Shenzhen 518055,China)

机构地区：[1]厦门大学电子科学与技术学院电子工程系,福建厦门361104 [2]厦门大学福建省超快激光技术及应用重点实验室,福建厦门361104 [3]南方科技大学工学院电子与电气工程系,广东深圳518055

出　　处：《液晶与显示》2025年第2期284-308,共25页Chinese Journal of Liquid Crystals and Displays

基　　金：国家自然科学基金(No.62075186,No.62175206);国家重点研发计划(No.2022YFA1203700)。

摘　　要：液晶与微流控技术的结合开辟了新的研究与应用领域,不仅提升了对液晶在微尺度下行为的精确控制,也促进了新型光学器件、传感技术等多领域的创新。液晶材料的独特分子排列和光学特性拓展了微流控技术的应用,展现出丰富的物理现象与复杂的流体行为。本文综述了液晶微流控技术的最新研究进展,重点介绍了几种常用液晶材料及其在微流控中的应用,分析了微通道表面功能化对液晶取向的影响以及液晶流动与分子取向的耦合作用。最后,本文总结了液晶微流控在光学元件、传感器和生物检测等领域的应用,并展望了未来的发展趋势和面临的挑战。The integration of liquid crystals and microfluidics has catalyzed the emergence of new research and application domains.This combination enhances the precise control of liquid crystal behavior at the microscale while driving innovation in optical devices,sensing technologies,and related fields.The distinctive molecular arrangement and optical properties of liquid crystals have broadened the scope of microfluidic applications,revealing diverse physical phenomena and complex fluid dynamics.This paper provides a comprehensive review of recent advancements in liquid crystal microfluidics,with a particular emphasis on commonly used liquid crystal materials and their applications within microfluidic systems.It also examines the impact of microchannel surface functionalization on liquid crystal orientation and explores the interplay between liquid crystal flow and molecular orientation.Finally,the paper discusses the applications of liquid crystal microfluidics in optical components,sensors and bio-detection,and anticipates future development trends and challenges in this field.

关 键 词：液晶 微流控 光学器件 传感 拓扑缺陷 

分 类 号：O753.2[理学—晶体学]