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SERS biosensors based on cucurbituril-mediated nanoaggregates for wastewater-based epidemiology

Chio, W-IK; Xie, H; Zhang, Y; Lan, Y; Lee, T-C; (2021) SERS biosensors based on cucurbituril-mediated nanoaggregates for wastewater-based epidemiology. TrAC Trends in Analytical Chemistry , Article 116485. 10.1016/j.trac.2021.116485. (In press). Green open access

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Abstract

Hierarchical self-assembly of nanoparticles (NPs) mediated by macrocyclic molecules, cucurbiturils (CBs), provides a facile method to fabricate surface-enhanced Raman spectroscopy (SERS) sensors for potential applications in biosensing and environmental monitoring. In contrast to conventional techniques for wastewater-based epidemiology (WBE), CB-NP SERS sensors offer great opportunities for on-site quantification of trace chemical and biological markers due to its high sensitivity, selectivity, reproducibility, multiplexing capability and tolerance against contamination. The working principles of the CB-Au NP nanocomposites including fabrication, sensing mechanisms and structure-property relationships are explained while the design guidelines and selected examples of CB-Au NP SERS sensors are discussed. The review concludes by highlighting recent advances in this area and exploring opportunities in the context of WBE.

Type: Article
Title: SERS biosensors based on cucurbituril-mediated nanoaggregates for wastewater-based epidemiology
Open access status: An open access version is available from UCL Discovery
DOI: 10.1016/j.trac.2021.116485
Publisher version: https://doi.org/10.1016/j.trac.2021.116485
Language: English
Additional information: © 2021 The Authors. This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/)
Keywords: Wastewater-based epidemiology; surface-enhanced Raman spectroscopy; biosensing; environmental monitoring; cucurbituril; gold nanoparticles; self-assembly; host-guest complexation; nanocomposites
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Chemical Engineering
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/10138925
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