Reversible Nontoxic Thermochromic Microcapsules.

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    Author
    Liu, B; Rasines Mazo, A; Gurr, PA; Qiao, GG
    Date
    2020-02-26
    Source Title
    ACS Applied Materials and Interfaces
    Publisher
    American Chemical Society
    University of Melbourne Author/s
    Qiao, Greg; Gurr, Paul; Liu, Bingxin; Rasines Mazo, Alicia
    Affiliation
    Chemical and Biomolecular Engineering
    Metadata
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    Document Type
    Journal Article
    Citations
    Liu, B., Rasines Mazo, A., Gurr, P. A. & Qiao, G. G. (2020). Reversible Nontoxic Thermochromic Microcapsules.. ACS Appl Mater Interfaces, 12 (8), pp.9782-9789. https://doi.org/10.1021/acsami.9b21330.
    Access Status
    This item is embargoed and will be available on 2021-02-26
    URI
    http://hdl.handle.net/11343/258689
    DOI
    10.1021/acsami.9b21330
    Abstract
    Thermochromic materials exhibit a color change in response to a change in temperature. Creating nontoxic microcapsules containing thermochromic materials for applications in ink and film materials is historically challenging. In this study, we develop a nontoxic chlorophenol red (CPR)-water thermochromic system and its microcapsules with silicone shells via a reaction between water and octadecyltrichlorosilane (OTS) at the interface of a w/o emulsion. The obtained microcapsules exhibit a clear color change with full reversibility and are successfully used as inks by screen printing and as additives in films. Nontoxicity of both microcapsules and films is demonstrated through cell cytotoxicity assays. These features make these novel materials applicable to the next generation of intelligent sensors, coating, and food packaging materials.

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