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  • Effect of Core Liquid Surface Tension on the Liquid Marble Shell

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    Singha451108-Accepted.pdf (1.512Mb)
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    Accepted Manuscript (AM)
    Author(s)
    Singha, Pradip
    Nguyen, Nhat‐Khuong
    Sreejith, Kamalalayam Rajan
    An, Hongjie
    Nguyen, Nam‐Trung
    Ooi, Chin Hong
    Griffith University Author(s)
    Ooi, Chin Hong
    Nguyen, Nam-Trung
    An, Hongjie
    Kamalalayam Rajan, Sreejith
    Year published
    2020
    Metadata
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    Abstract
    Liquid marble is a non‐wetting droplet coated with micro‐ or nanometer sized particles and exhibits great versatility as a standalone system. Unique features such as low evaporation rate, low friction, and a porous shell enable it to be a potential tool for gas sensing, cell culture, and drug delivery. With the growing number of interests in these fields, it is important to understand the structure of the liquid marble shell and how it behaves with the variation of the surface tension of the core liquid. This paper investigates the thickness and the mass of liquid marble shell at various surface tension values. Surfactant ...
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    Liquid marble is a non‐wetting droplet coated with micro‐ or nanometer sized particles and exhibits great versatility as a standalone system. Unique features such as low evaporation rate, low friction, and a porous shell enable it to be a potential tool for gas sensing, cell culture, and drug delivery. With the growing number of interests in these fields, it is important to understand the structure of the liquid marble shell and how it behaves with the variation of the surface tension of the core liquid. This paper investigates the thickness and the mass of liquid marble shell at various surface tension values. Surfactant mediated surface tension reduction allows the encapsulating particles to penetrate more into the core liquid and decreases the shell thickness. The shell thickness decreases significantly with the surface tension, whereas the mass remains almost constant. Interestingly, the trend reverses with further decrease of the surface tension. In this regime, both the thickness and the mass of the shell increase due to interfacial jamming. This work provides a new insight into understanding the contribution of the particle distribution at the shell for the stability and the measurement of the effective surface tension of a liquid marble.
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    Journal Title
    Advanced Materials Interfaces
    DOI
    https://doi.org/10.1002/admi.202001591
    Copyright Statement
    © 2020 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. This is the peer reviewed version of the following article: Effect of Core Liquid Surface Tension on the Liquid Marble Shell, Advanced Materials Interfaces, 2020, which has been published in final form at https://doi.org/10.1002/admi.202001591. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving (http://olabout.wiley.com/WileyCDA/Section/id-828039.html)
    Note
    This publication has been entered as an advanced online version in Griffith Research Online.
    Subject
    Physical chemistry
    Materials engineering
    Publication URI
    http://hdl.handle.net/10072/399928
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