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Tetraphenylethylene-Based Nanogels by Physical Encapsulation Technology: An AIEgen Transparent Film Thermometers

  • Yingjun Yang
    Yingjun Yang
    Materials Institute of Atomic and Molecular Science, Shaanxi University of Science and Technology, Xi’an 710021, China
    More by Yingjun Yang
  • Xiaoqiang Hou
    Xiaoqiang Hou
    Materials Institute of Atomic and Molecular Science, Shaanxi University of Science and Technology, Xi’an 710021, China
    School of Materials Science & Engineering, Shaanxi University of Science and Technology, Xi’an 710021, China
  • Shufang Ma
    Shufang Ma
    Materials Institute of Atomic and Molecular Science, Shaanxi University of Science and Technology, Xi’an 710021, China
    More by Shufang Ma
  • Siyuan Huang
    Siyuan Huang
    Materials Institute of Atomic and Molecular Science, Shaanxi University of Science and Technology, Xi’an 710021, China
    School of Materials Science & Engineering, Shaanxi University of Science and Technology, Xi’an 710021, China
    More by Siyuan Huang
  • Jingyi Chen
    Jingyi Chen
    Materials Institute of Atomic and Molecular Science, Shaanxi University of Science and Technology, Xi’an 710021, China
    School of Materials Science & Engineering, Shaanxi University of Science and Technology, Xi’an 710021, China
    More by Jingyi Chen
  • Zejian Fang
    Zejian Fang
    Materials Institute of Atomic and Molecular Science, Shaanxi University of Science and Technology, Xi’an 710021, China
    School of Materials Science & Engineering, Shaanxi University of Science and Technology, Xi’an 710021, China
    More by Zejian Fang
  • Guanjian Nie
    Guanjian Nie
    Materials Institute of Atomic and Molecular Science, Shaanxi University of Science and Technology, Xi’an 710021, China
    School of Materials Science & Engineering, Shaanxi University of Science and Technology, Xi’an 710021, China
    More by Guanjian Nie
  • Bingshe Xu
    Bingshe Xu
    Materials Institute of Atomic and Molecular Science, Shaanxi University of Science and Technology, Xi’an 710021, China
    Key Laboratory of Interface Science and Engineering in Advanced Materials of Ministry of Education, Taiyuan University of Technology, Taiyuan 030024, China
    More by Bingshe Xu
  • Christophe A. Serra
    Christophe A. Serra
    ICS UPR 22, CNRS, Université de Strasbourg, Strasbourg F-67000, France
  • , and 
  • Shukai Ding*
    Shukai Ding
    Materials Institute of Atomic and Molecular Science, Shaanxi University of Science and Technology, Xi’an 710021, China
    *Email: [email protected]
    More by Shukai Ding
Cite this: ACS Appl. Polym. Mater. 2022, 4, 3, 1974–1982
Publication Date (Web):February 20, 2022
https://doi.org/10.1021/acsapm.1c01826
Copyright © 2022 American Chemical Society

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    Abstract

    Abstract Image

    AIEgens have attracted intensive interest because of the unusual fluorescence feature. Although AIEgen-based materials have been developed for responding to the diverse ex-stimuli, such as mechano-, electro-, and thermal-stimuli, the practical application of AIEgen-based thermoluminescence is hampered for the following reasons: (1) high cost attributed to the complicated chemical modification, (2) low contrast and responsiveness resulting from the chromophoric property of the thermal functional group. In this contribution, a facile encapsulation technology-based strategy without any chemical modifications is developed to form the encapsulated TPE nanogels for the preparation of the AIEgen-based thermoluminescence. Thanks to the coexistence of the liquid and solid phases, the nanogel-based AIEgens can not only attain the transparent feature but also a reversible transformation between the single-molecule and aggregated state by ex-thermal stimuli. In the nanogel, the two aggregated states of TPE molecules are observed that result from being tangled by poly-TPGDA and from being self-assembled, respectively. Furthermore, the nanogels prepared at different temperatures demonstrate the controllable fluorescence intensity. The higher preparation temperature results in more aggregated TPE and higher fluorescence intensity. Finally, the nanogels are easily formed into the transparent film thermometers because of their flowability, which shows a switchable and stable fluorescence by ex-thermal stimuli. The transparent film thermometer demonstrates high potential in anticounterfeiting technology and biological imaging.

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    Supporting Information

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    The Supporting Information is available free of charge at https://pubs.acs.org/doi/10.1021/acsapm.1c01826.

    • UV absorbance, fluorescence spectra, and photographs of nanogels without TPE; quantum efficiency and cycling performance (PDF)

    • Video S1, showing the cycles of the nanogel prepared at 40 °C in the solid state (MP4)

    • Video S2, showing the cycles of the nanogel prepared at 50 °C in the solid state (MP4)

    • Video S3, showing the cycles of the nanogel prepared at 60 °C in the solid state (MP4)

    • Video S4, showing the cycles of the nanogel prepared at 70 °C in the solid state (MP4)

    • Video S5, showing the cycles of the nanogel prepared at 80 °C in the solid state (MP4)

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    Most electronic Supporting Information files are available without a subscription to ACS Web Editions. Such files may be downloaded by article for research use (if there is a public use license linked to the relevant article, that license may permit other uses). Permission may be obtained from ACS for other uses through requests via the RightsLink permission system: http://pubs.acs.org/page/copyright/permissions.html.

    Cited By

    This article is cited by 1 publications.

    1. Ujjawal Bairagi, Simran Kaur Rainu, Neetu Singh, Josemon Jacob. Polyzwitterionic Nanogels for Controlled and Sustained Release of Bicarbonate Anions for Treatment of Metabolic Acidosis. ACS Applied Polymer Materials 2023, 5 (5) , 3542-3553. https://doi.org/10.1021/acsapm.3c00221

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