Liquid Crystals with Interfacial Ordering that Enhances Responsiveness to Chemical Targets

Advanced Materials
Karthik NayaniNicholas L Abbott

Abstract

The development of stimuli-responsive materials suitable for use in wearable sensors is a key unresolved challenge. Liquid crystals (LCs) are particularly promising, as they do not require power, are light-weight, and can be tuned to respond to a range of targeted chemical stimuli. Here, an advance is reported in the design of LCs for chemical sensors with the discovery of LCs that assume parallel orientations at free surfaces and yet retain their chemoresponsiveness. The resulting LC-based sensors are more sensitive and exhibit faster responses than previous LC sensor designs.

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Citations

Jul 3, 2020·Advanced Optical Materials·Carina EstevesAna Cecília Afonso Roque
Mar 7, 2021·Materials·Huaizhe YuNicholas L Abbott
Apr 9, 2021·Science Advances·Inki KimJunsuk Rho
May 13, 2021·Soft Matter·Ziyihui WangTiegen Liu
Oct 28, 2019·Langmuir : the ACS Journal of Surfaces and Colloids·Xin WangNicholas L Abbott
Jun 9, 2020·ACS Applied Materials & Interfaces·Jake GoldManos Mavrikakis

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