Journal
CHEMICAL SCIENCE
Volume 9, Issue 44, Pages 8396-8401Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c8sc03623c
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Funding
- Overseas Study Program of Guangzhou Elite Project
- EPSRC [EP/P005241/1]
- ERC [PISA 320372]
- EPSRC Established Career Particle Technology Fellowship [EP/R003009/1]
- EPSRC [EP/P005241/1, EP/R003009/1, EP/K006290/1] Funding Source: UKRI
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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 (approximate to 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.
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