Spatial control of chemical processes on nanostructures through nano-localized water heating

Jack, C. et al. (2016) Spatial control of chemical processes on nanostructures through nano-localized water heating. Nature Communications, 7, 10946. (doi:10.1038/ncomms10946) (PMID:26961708) (PMCID:PMC4792951)

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Abstract

Optimal performance of nanophotonic devices, including sensors and solar cells, requires maximizing the interaction between light and matter. This efficiency is optimized when active moieties are localized in areas where electromagnetic (EM) fields are confined. Confinement of matter in these ‘hotspots’ has previously been accomplished through inefficient ‘top-down’ methods. Here we report a rapid ‘bottom-up’ approach to functionalize selective regions of plasmonic nanostructures that uses nano-localized heating of the surrounding water induced by pulsed laser irradiation. This localized heating is exploited in a chemical protection/deprotection strategy to allow selective regions of a nanostructure to be chemically modified. As an exemplar, we use the strategy to enhance the biosensing capabilities of a chiral plasmonic substrate. This novel spatially selective functionalization strategy provides new opportunities for efficient high-throughput control of chemistry on the nanoscale over macroscopic areas for device fabrication.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Lapthorn, Dr Adrian and Kadodwala, Professor Malcolm and Cooke, Professor Graeme and TULLIUS, Ryan and Karimullah, Dr Affar and Barron, Professor Laurence and Rodier, Ms Marion and Fitzpatrick, Dr Brian and Gadegaard, Professor Nikolaj
Authors: Jack, C., Karimullah, A. S., Tullius, R., Khorashad, L. K., Rodier, M., Fitzpatrick, B., Barron, L. D., Gadegaard, N., Lapthorn, A., Rotello, V. M., Cooke, G., Govorov, A. O., and Kadodwala, M.
College/School:College of Science and Engineering > School of Chemistry
College of Science and Engineering > School of Engineering > Biomedical Engineering
Journal Name:Nature Communications
Publisher:Nature Publishing Group
ISSN (Online):2041-1723
Published Online:10 March 2016
Copyright Holders:Copyright © 2016 Jack, C. et al.
First Published:First published in Nature Communications 7:10946
Publisher Policy:Reproduced under a Creative Commons licence

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
618701Plasmon-Enhanced Chiroptical SensorsMalcolm KadodwalaEngineering & Physical Sciences Research Council (EPSRC)EP/K034936/1CHEM - CHEMISTRY