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Tunable functionalization of silica coated iron oxide nanoparticles achieved through a silanol–alcohol condensation reaction

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Abstract

The surface properties of nanoparticles play an important role in their interactions with their surroundings. Silane reagents have been used for surface modifications to silica shells on iron oxide nanoparticles, but using these reagents presents some challenges. An alternative approach to modifying the surfaces of these silica shells was developed to impart different terminal functional groups, such as a thiol, alcohol, or carboxylic acid, through the use of alcohol-based reagents. This approach to surface functionalization of the core–shell particles was verified through chemical analyses and the attachment of gold nanoparticles. The use of the silanol–alcohol condensation reaction could be extended further to other surface functionalizations through the use of additional alcohol-based reagents.

Graphical abstract: Tunable functionalization of silica coated iron oxide nanoparticles achieved through a silanol–alcohol condensation reaction

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Publication details

The article was received on 23 May 2019, accepted on 06 Aug 2019 and first published on 06 Aug 2019


Article type: Communication
DOI: 10.1039/C9CC03969D
Chem. Commun., 2019, Advance Article

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    Tunable functionalization of silica coated iron oxide nanoparticles achieved through a silanol–alcohol condensation reaction

    H. J. H. Kang, R. F. Ali, M. T. Y. Paul, M. J. Radford, I. Andreu, A. W. H. Lee and B. D. Gates, Chem. Commun., 2019, Advance Article , DOI: 10.1039/C9CC03969D

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