Firefly-inspired bipolar information indication system actuated by white light

Hanwen Huang, Jiamiao Yin, Qianwen Zhou, Huateng Li, Junying Yang, Yaoben Wang, Ming Xu () and Changchun Wang ()
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Hanwen Huang: Laboratory of Advanced Materials, Fudan University
Jiamiao Yin: Fudan University
Qianwen Zhou: Shenzhen University
Huateng Li: Laboratory of Advanced Materials, Fudan University
Junying Yang: Laboratory of Advanced Materials, Fudan University
Yaoben Wang: Laboratory of Advanced Materials, Fudan University
Ming Xu: Fudan University
Changchun Wang: Laboratory of Advanced Materials, Fudan University

Nature Communications, 2024, vol. 15, issue 1, 1-10

Abstract: Abstract The indication of information in materials is widely used in our daily life, and optical encoding materials are ideal for information loading due to their easily readable nature and adjustable optical properties. However, most of them could only indicate one type of information, either changing or unchanging due to the mutual interference. Inspired by firefly, we present a non-interfering bipolar information indication system capable of indicating both changing and unchanging information. A photochemical afterglow material is incorporated into the photonic crystal matrix through a high-throughput technique called shear-induced ordering technique, which can efficiently produce large-area photonic crystal films. The indication of changing and unchanging information is enabled by two different utilizations of white light by the afterglow material and photonic crystals, respectively, which overcome the limitations of mutual interference. As a proof of concept, this system is used to indicate the changing photodegradation level of mecobalamin (a photosensitive medicine) and unchanging intrinsic drug information with anti-counterfeiting functionality, which is a promising alternative to instantly ascertain the efficacy of medicine at home where conventional assays are impractical.

Date: 2024
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DOI: 10.1038/s41467-024-48473-0

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