Abstract
Yolk/shell capsules containing a volume/hydrophobicity transformable core and an ultra-thin silica shell have been prepared. When an external magnetic field induced the temperature, the cores exhibit a significant triggering size shrinkage and the diameter decreases more than 10 times, causing solid shells destruction and physical collapse, leading to drug burst release.
MeSH terms
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Coated Materials, Biocompatible / administration & dosage
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Coated Materials, Biocompatible / analysis*
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Coated Materials, Biocompatible / chemistry
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Electromagnetic Phenomena*
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Ferric Compounds / chemistry
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Hydrophobic and Hydrophilic Interactions
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Microscopy, Electron, Scanning
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Microscopy, Electron, Transmission
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Nanocapsules / administration & dosage
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Nanocapsules / analysis*
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Nanocapsules / chemistry
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Nanoparticles / chemistry
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Silicon Dioxide / chemistry*
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Temperature
Substances
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Coated Materials, Biocompatible
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Ferric Compounds
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Nanocapsules
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ferric oxide
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Silicon Dioxide