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Dynamic wrinkling pattern exhibiting tunable fluorescence for anticounterfeiting applications

Nature communications, 2020-04, Vol.11 (1), p.1811-1811, Article 1811 [Peer Reviewed Journal]

The Author(s) 2020. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. ;The Author(s) 2020 ;ISSN: 2041-1723 ;EISSN: 2041-1723 ;DOI: 10.1038/s41467-020-15600-6 ;PMID: 32286298

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  • Title:
    Dynamic wrinkling pattern exhibiting tunable fluorescence for anticounterfeiting applications
  • Author: Ma, Tianjiao ; Li, Tiantian ; Zhou, Liangwei ; Ma, Xiaodong ; Yin, Jie ; Jiang, Xuesong
  • Subjects: Color ; Crosslinking ; Fluorescence ; Hydrogen bonding ; Irradiation ; Isomerization ; Morphology ; Protonation ; Pyridines ; Radiation ; Security ; Skin ; Wrinkling
  • Is Part Of: Nature communications, 2020-04, Vol.11 (1), p.1811-1811, Article 1811
  • Description: A dynamic surface pattern with a topography and fluorescence in response to environmental stimulus can enable information recording, hiding, and reading. Such patterns are therefore widely used in information security and anticounterfeiting. Here, we demonstrate a dynamic dual pattern using a supramolecular network comprising a copolymer containing pyridine (P4VP-nBA-S) and hydroxyl distyrylpyridine (DSP-OH) as the skin layer for bilayer wrinkling systems, in which both the wrinkle morphology and fluorescence color can be simultaneously regulated by visible light-triggered isomerization of DSP-OH, or acids. Acid-induced protonation of pyridines can dynamically regulate the cross-linking of the skin layer through hydrogen bonding, and the fluorescence of DSP-OH. On selective irradiation with 450 nm visible light or acid treatment, the resulting hierarchical patterned surface becomes smooth and wrinkled reversibly, and simultaneously its fluorescence changes dynamically from blue to orange-red. The smart surfaces with dynamic hierarchical wrinkles and fluorescence can find potential application in anticounterfeiting.
  • Publisher: England: Nature Publishing Group
  • Language: English
  • Identifier: ISSN: 2041-1723
    EISSN: 2041-1723
    DOI: 10.1038/s41467-020-15600-6
    PMID: 32286298
  • Source: PubMed Central (Open access)
    ProQuest Central
    DOAJ Directory of Open Access Journals
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