Ning, Y, Whitaker, DJ, Mable, CJ et al. (6 more authors) (2018) Anionic block copolymer vesicles act as Trojan horses to enable efficient occlusion of guest species into host calcite crystals. Chemical Science, 9 (44). pp. 8396-8401. ISSN 2041-6520
Abstract
We report a versatile ‘Trojan Horse’ strategy using highly anionic poly(methacrylic acid)-poly(benzyl methacrylate) vesicles to incorporate two types of model payloads, i.e. either silica nanoparticles or an organic dye (fluorescein), within CaCO3 (calcite). Uniform occlusion of silica-loaded vesicles was confirmed by scanning electron microscopy, while thermogravimetry studies indicated extents of vesicle occlusion of up to 9.4 % by mass (~33% by volume). Efficient dye-loaded vesicle occlusion produces highly fluorescent calcite crystals as judged by fluorescence microscopy. In control experiments, silica nanoparticles alone are barely occluded, while only very weakly fluorescent calcite crystals are obtained when using just the fluorescein dye. This new ‘Trojan Horse’ strategy opens up a generic route for the efficient occlusion of various nanoparticles and organic molecules within inorganic host crystals.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2018, The Royal Society of Chemistry. This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. To view a copy of this license, visit https://creativecommons.org/licenses/by/3.0/. |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Chemistry (Leeds) > Inorganic Chemistry (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 12 Sep 2018 10:49 |
Last Modified: | 21 Dec 2018 09:46 |
Status: | Published |
Publisher: | Royal Society of Chemistry |
Identification Number: | 10.1039/C8SC03623C |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:135563 |