Title:
PHOTONIC CRYSTAL LABEL THAT UNDERGOES TEMPERATURE-CONTROLLED SELF-DESTRUCTION
Document Type and Number:
WIPO Patent Application WO/2023/216151
Kind Code:
A1
Abstract:
A photonic crystal label that undergoes temperature-controlled self-destruction, which is is prepared from a photonic crystal material having irreversible temperature responsiveness; the photonic crystal material is prepared from a liquid photonic crystal assembly having a regularly arranged structure and a second material that undergoes phase change when heated and destroys said regularly arranged structure; the liquid photonic crystal assembly having the regularly arranged structure is composed of monodisperse micro/nano-colloidal particles having a regularly arranged structure and a first material filled into gaps of the micro/nano-colloidal particles; and the phase change temperature for phase change is any one among a melting point, a crystal form transition temperature, a glass transition temperature, a softening point, a gel-sol transition temperature, and a lowest/highest critical temperature. The provided photonic crystal label is simple to prepare, has accurate and reliable detection results that are easily identifiable, a monitored temperature and a color change duration are adjustable, and the adjustment range is wide.
Inventors:
DU XUEMIN (CN)
HUANG CHAO (CN)
HUANG CHAO (CN)
Application Number:
PCT/CN2022/092248
Publication Date:
November 16, 2023
Filing Date:
May 11, 2022
Export Citation:
Assignee:
SHENZHEN INST ADV TECH (CN)
International Classes:
G01K11/12; G09F3/02
Foreign References:
| CN110908145A | 2020-03-24 | |||
| CN114353991A | 2022-04-15 | |||
| CN101665677A | 2010-03-10 | |||
| CN109377860A | 2019-02-22 | |||
| US20120044970A1 | 2012-02-23 | |||
| US20200191758A1 | 2020-06-18 |
Attorney, Agent or Firm:
BEIJING CHENGHUI LAW FIRM (CN)
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