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Dynamic Inclusion Complexes of Metal Nanoparticles Inside Nanocups

Alarcón-Correa, M; Lee, T-C; Fischer, P; (2015) Dynamic Inclusion Complexes of Metal Nanoparticles Inside Nanocups. [Rapid communication]. Angewandte Chemie International Edition , 54 (23) pp. 6730-6734. 10.1002/anie.201500635. Green open access

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Abstract

Host–guest inclusion complexes are abundant in molecular systems and of fundamental importance in living organisms. Realizing a colloidal analogue of a molecular dynamic inclusion complex is challenging because inorganic nanoparticles (NPs) with a well-defined cavity and portal are difficult to synthesize in high yield and with good structural fidelity. Herein, a generic strategy towards the fabrication of dynamic 1:1 inclusion complexes of metal nanoparticles inside oxide nanocups with high yield (>70 %) and regiospecificity (>90 %) by means of a reactive double Janus nanoparticle intermediate is reported. Experimental evidence confirms that the inclusion complexes are formed by a kinetically controlled mechanism involving a delicate interplay between bipolar galvanic corrosion and alloying–dealloying oxidation. Release of the NP guest from the nanocups can be efficiently triggered by an external stimulus.

Type: Article
Title: Dynamic Inclusion Complexes of Metal Nanoparticles Inside Nanocups
Open access status: An open access version is available from UCL Discovery
DOI: 10.1002/anie.201500635
Publisher version: http://dx.doi.org/10.1002/anie.201500635
Language: English
Additional information: This is the peer reviewed version of the following article: Alarcón-Correa, M; Lee, T-C; Fischer, P; (2015) Dynamic Inclusion Complexes of Metal Nanoparticles Inside Nanocups. [Rapid communication]. Angewandte Chemie International Edition , 54 (23) pp. 6730-6734, which has been published in final form at http://dx.doi.org/10.1002/anie.201500635. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > MAPS Faculty Office
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > MAPS Faculty Office > Institute for Materials Discovery
URI: https://discovery.ucl.ac.uk/id/eprint/1474022
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