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Responsive Photonic Liquid Marbles

Anyfantakis, Manos; Jampani, Venkata S.R.; Kizhakidathazhath, Rijeesh; Binks, Bernard P.; Lagerwall, Jan P.F.


Manos Anyfantakis

Venkata S.R. Jampani

Rijeesh Kizhakidathazhath

Jan P.F. Lagerwall


Liquid marbles have potential to serve as mini-reactors for fabricating new materials, but this has been exploited little and mostly for conventional chemical reactions. Here, we uncover the unparalleled capability of liquid marbles to act as platforms for controlling the self-assembly of a bio-derived polymer, hydroxypropyl cellulose, into a cholesteric liquid crystalline phase showing structural coloration by Bragg reflection. By adjusting the cholesteric pitch via quantitative water extraction, we achieve liquid marbles that we can tailor for structural color anywhere in the visible range. Liquid marbles respond with color change that can be detected by eye, to changes in temperature, exposure to toxic chemicals and mechanical deformation. Our concept demonstrates the advantages of using liquid marbles as a miniature platform for controlling the liquid crystal self-assembly of bio-derived polymers, and their exploitation to fabricate sustainable, responsive soft photonic objects.


Anyfantakis, M., Jampani, V. S., Kizhakidathazhath, R., Binks, B. P., & Lagerwall, J. P. (2020). Responsive Photonic Liquid Marbles. Angewandte Chemie, 59(43), 19260-19267.

Journal Article Type Article
Acceptance Date Jul 19, 2020
Online Publication Date Jul 19, 2020
Publication Date Oct 19, 2020
Deposit Date Dec 2, 2020
Publicly Available Date Dec 7, 2020
Journal Angewandte Chemie - International Edition
Print ISSN 1433-7851
Electronic ISSN 1521-3773
Publisher Wiley
Peer Reviewed Peer Reviewed
Volume 59
Issue 43
Pages 19260-19267
Keywords Cholesteric liquid crystals; Hydroxypropyl cellulose; Liquid marble; Stimuli responsiveness; Structural color
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Copyright Statement
© 2020 The Authors. Published by Wiley-VCH GmbH. This is an open access article under the terms of the Creative CommonsAttribution Non-Commercial License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes

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