Smart Supramolecular Sensing with Cucurbit[n]urils: Probing Hydrogen Bonding with SERS
de Nijs, Bart
Royal Society of Chemistry
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de Nijs, B., Kamp, M., Szabo, I., Barrow, S., Benz, F., Wu, G., Carnegie, C., et al. (2017). Smart Supramolecular Sensing with Cucurbit[n]urils: Probing Hydrogen Bonding with SERS. Faraday Discussions https://doi.org/10.1039/C7FD00147A
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.
We acknowledge financial support from the UK’s Engineering and Physical Sciences Research Council (grants EP/L027151/1, EP/K028510/1, EP/L015978/1, EP/N020669/1) and the European Research Council (grants LINASS 320503, MSCA-IF-2015-EF SPARCLEs 7020005 and MSCA-IF-2014-EF NANOSPHERE, 658360). RC acknowledges support from the Dr. Manmohan Singh scholarship from St. John’s College. FB acknowledges support from the Winton Programme for the Physics of Sustainability. CC acknowledges support from the UK National Physical Laboratories. GW thanks the Leverhulme Trust (Natural material innovation for sustainable living) for the support.
European Commission (658360)
European Commission Horizon 2020 (H2020) Marie Sk?odowska-Curie actions (702005)
European Research Council (320503)
Leverhulme Trust (RP2013-SL-008)
External DOI: https://doi.org/10.1039/C7FD00147A
This record's URL: https://www.repository.cam.ac.uk/handle/1810/265657
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