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Robust Microfluidic Encapsulation of Cholesteric Liquid Crystals Toward Photonic Ink Capsules
Author(s) -
Lee Sang Seok,
Kim Bomi,
Kim Su Kyung,
Won Jong Chan,
Kim Yun Ho,
Kim ShinHyun
Publication year - 2015
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201403271
Subject(s) - encapsulation (networking) , microfluidics , materials science , inkwell , nanotechnology , liquid crystal , photonics , photonic crystal , photonic bandgap , optoelectronics , computer science , computer network , composite material
Robust photonic microcapsules are created by microfluidic encapsulation of cholesteric liquid crystals with a hydrogel membrane. The membrane encloses the cholesteric core without leakage in water and the core exhibits pronounced structural colors. The photonic ink capsules, which have a precisely controlled bandgap position and size, provide new opportunities in colorimetric micro‐thermometers and optoelectric applications.