Hussain A, Pina A S, Roque A C A
REQUIMTE/CQFB, Centro de Química Fina e Biotecnologia, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal.
Biosens Bioelectron. 2009 Sep 15;25(1):1-8. doi: 10.1016/j.bios.2009.04.038. Epub 2009 May 3.
Liquid crystals (LCs) are used extensively by the electronics industry as display devices. Advances in the understanding of the liquid crystalline phase and the chemistry therein lead to the development of LC exhibiting faster switching speed with greater twist angle. This in turn lead to the emergence of liquid crystal displays, rendering dial-and-needle based displays (such as those used in various meters) and cathode ray tubes obsolete. In this article, we review the history of LC and their emergence as an invaluable material for display devices and the more recent discovery of their use as sensing elements in biosensors. This new application of LC as tools in the development of fast and simple biosensors is envisaged to gain more importance in the foreseeable future.
液晶（LCs）被电子行业广泛用作显示设备。对液晶相及其内部化学的理解取得进展，促使开发出具有更快切换速度和更大扭曲角的液晶。这进而导致液晶显示器的出现，使基于表盘和指针的显示器（如各种仪表中使用的那些）以及阴极射线管过时。在本文中，我们回顾了液晶的历史以及它们作为显示设备的宝贵材料的出现，以及最近发现它们在生物传感器中用作传感元件。液晶作为快速简单生物传感器开发工具的这一新应用预计在可预见的未来会变得更加重要。
