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Issue 29, 2017
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Fe3O4@Au@mSiO2 as an enhancing nanoplatform for Rose Bengal photodynamic activity

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Abstract

A novel nanoplatform composed of three types of materials with different functionalities, specifically core–shell Fe3O4@Au nanoparticles encapsulated near the outer surface of mesoporous silica (mSiO2) nanoparticles, has been successfully synthesised and used to enhance the efficiency of a photosensitiser, namely Rose Bengal, in singlet oxygen generation. Fe3O4 is responsible for the unusual location of the Fe3O4@Au nanoparticle, while the plasmonic shell acts as an optical antenna. In addition, the mesoporous silica matrix firmly encapsulates Rose Bengal by chemical bonding inside the pores, thus guaranteeing its photostability, and in turn making the nanosystem biocompatible. Moreover, the silica surface of the nanoplatform ensures further functionalisation on demand.

Graphical abstract: Fe3O4@Au@mSiO2 as an enhancing nanoplatform for Rose Bengal photodynamic activity

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Publication details

The article was received on 18 Jan 2017, accepted on 15 Jun 2017 and first published on 16 Jun 2017


Article type: Paper
DOI: 10.1039/C7NR00449D
Citation: Nanoscale, 2017,9, 10388-10396
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    Fe3O4@Au@mSiO2 as an enhancing nanoplatform for Rose Bengal photodynamic activity

    I. Rosa-Pardo, M. Roig-Pons, A. A. Heredia, J. V. Usagre, A. Ribera, R. E. Galian and J. Pérez-Prieto, Nanoscale, 2017, 9, 10388
    DOI: 10.1039/C7NR00449D

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