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. 2014 Jun 5;9:2767–2778. doi: 10.2147/IJN.S60171

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© 2014 Liao et al. This work is published by Dove Medical Press Limited, and licensed under Creative Commons Attribution – Non Commercial (unported, v3.0) License

The full terms of the License are available at http://creativecommons.org/licenses/by-nc/3.0/. Non-commercial uses of the work are permitted without any further permission from Dove Medical Press Limited, provided the work is properly attributed.

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(a) Typical scanning electron microscopy image of mesoporous silica nanoparticles (MSNs) used in this study, with (a-1) spherical morphology and (a-2) bulk-like morphology. (b) A typical optical microscopy image of alginate microspheres. (c) Fluorescent images of a fluorescein isothiocyanate-MSN-encapsulated alginate microsphere: (c-1) DIC image, (c-2) green fluorescent image from fluorescein isothiocyanate-adsorbed MSNs, and (c-3) merged image.

Abbreviation: DIC, differential interference contrast microscopy.