Magnetically Directed Assembly of Nanocrystals for Catalytic Control of a Three-Component Coupling Reaction

Alaa Munshi; Vipul Agarwal; Dominic Ho; Colin Raston; Martin Saunders; Nicole Smith; K Iyer

doi:10.1021/acs.cgd.6b00582

Magnetically Directed Assembly of Nanocrystals for Catalytic Control of a Three-Component Coupling Reaction

Alaa Munshi
, Vipul Agarwal
, Dominic Ho
, Colin Raston
, Martin Saunders
, Nicole Smith
, K Iyer

Research output: Contribution to journal › Article › peer-review

32 Citations (Scopus)

Abstract

Randomly distributed colloidal magnetic nanoparticles in solution are polarized in the presence of an external magnetic field, and the interparticle dipole-dipole attraction drives their assembly into linear chains. In this Communication, we report using a model A³-coupling reaction, that the field-directed self-assembly of gold-coated magnetite (Fe₃O₄@Au) nanoparticles can be used to remotely control the rate of reaction by manipulating their colloidal assembly of catalyst in situ.

Original language	English
Pages (from-to)	4773-4776
Number of pages	4
Journal	Crystal Growth and Design
Volume	16
Issue number	9
DOIs	https://doi.org/10.1021/acs.cgd.6b00582
Publication status	Published - 7 Sept 2016

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10.1021/acs.cgd.6b00582

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abstract = "Randomly distributed colloidal magnetic nanoparticles in solution are polarized in the presence of an external magnetic field, and the interparticle dipole-dipole attraction drives their assembly into linear chains. In this Communication, we report using a model A3-coupling reaction, that the field-directed self-assembly of gold-coated magnetite (Fe3O4@Au) nanoparticles can be used to remotely control the rate of reaction by manipulating their colloidal assembly of catalyst in situ.",

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AU - Ho, Dominic

AU - Raston, Colin

AU - Saunders, Martin

AU - Smith, Nicole

AU - Iyer, K

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AB - Randomly distributed colloidal magnetic nanoparticles in solution are polarized in the presence of an external magnetic field, and the interparticle dipole-dipole attraction drives their assembly into linear chains. In this Communication, we report using a model A3-coupling reaction, that the field-directed self-assembly of gold-coated magnetite (Fe3O4@Au) nanoparticles can be used to remotely control the rate of reaction by manipulating their colloidal assembly of catalyst in situ.

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Magnetically Directed Assembly of Nanocrystals for Catalytic Control of a Three-Component Coupling Reaction

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