Highly sensitive and selective liquid crystal optical sensor for detection of ammonia

作者：Xiaofang Niu, Yuanbo Zhong, Rui Chen, Fei Wang, Dan Luo · 发表于：Optics Express · 年份：2017 · DOI：10.1364/oe.25.013549 · 被引用次数：56 · 研究领域：Liquid Crystal Research Advancements、Photonic and Optical Devices、Advanced Fiber Optic Sensors

that decorated on glass substrate. We achieve a broad detection range of ammonia from 50 ppm to 1250 ppm, with a low detection limit of 16.6 ppm. This sensor is low-cost, simple, fast, and highly sensitive and selective for detection of ammonia. The proposal LC sensing method can be a sensitive detection platform for other molecule monitors such as proteins, DNAs and other heavy metal ions by modifying sensing molecules.