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Smart Supramolecular Sensing with Cucurbit[n]urils: Probing Hydrogen Bonding with SERS

Abstract

Rigid gap nano-aggregates of Au nanoparticles formed using cucurbit[n]uril (CB[n]) molecules are used to investigate competitive binding of ethanol and methanol in an aqueous environment. We show it is possible to detect as little as 0.1% methanol in water and a ten times higher affinity to methanol over ethanol, making this a useful technology for quality control in alcohol production. We demonstrate strong interaction effects in the SERS peaks, which we demonstrate are likely from hydrogen bonding of water complexes in the vicinity of the CB[n]s.

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Publication details

The article was received on 26 Apr 2017, accepted on 29 Jun 2017 and first published on 14 Jul 2017


Article type: Paper
DOI: 10.1039/C7FD00147A
Citation: Faraday Discuss., 2017, Accepted Manuscript
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    Smart Supramolecular Sensing with Cucurbit[n]urils: Probing Hydrogen Bonding with SERS

    B. de Nijs, M. Kamp, I. Szabo, S. J. Barrow, F. Benz, G. Wu, C. Carnegie, R. Chikkaraddy, W. Wang, W. M. Deacon, E. Rosta, J. J. Baumberg and O. A. Scherman, Faraday Discuss., 2017, Accepted Manuscript , DOI: 10.1039/C7FD00147A

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