Rapid detection of synthetic cannabinoids via fluorescence spectral fingerprints

R. Kumar, Gyles E. Cozier, Rachael C. Andrews, Christopher R. Pudney

Research output: Chapter or section in a book/report/conference proceedingChapter in a published conference proceeding

Abstract

Synthetic Cannabinoids (SCs), also known as "Spice", are a category of Schedule 1 drugs consisting of over 200 chemically diverse compounds. They are prevalent in UK prisons and homeless groups often sold on a range of matrices (herbal, paper and fabric) and at unknown concentrations. To reduce the harm these drugs cause, rapid and accurate detection is required. Due to their chemical diversity, detection can be challenging. Their identification can be achieved using spectroscopic approaches such as LCQTOF-MS, LC-MS-MS, GC-MS, NMR, and ATR-IR. However, these are time-consuming and laboratory-intensive, requiring advanced training. Recently, we provided evidence that excitationemission matrices can be used to 'fingerprint the presence of SCs' which we call a fluorescence spectral fingerprint (FSF). Here we demonstrate a portable device, based-on an array of LEDs as excitation sources, that can produce FSFs that are of sufficiently high resolution to discriminate FSFs of individual SCs.

Original languageEnglish
Title of host publicationUV and Higher Energy Photonics
Subtitle of host publicationFrom Materials to Applications 2023
EditorsGilles Lerondel, Yong-Hoon Cho, Atsushi Taguchi, Satoshi Kawata
Place of PublicationU. S. A.
PublisherSPIE
ISBN (Electronic)9781510665187
DOIs
Publication statusPublished - 5 Oct 2023
EventUV and Higher Energy Photonics: From Materials to Applications 2023 - San Diego, USA United States
Duration: 20 Aug 202321 Aug 2023

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume12652
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceUV and Higher Energy Photonics: From Materials to Applications 2023
Country/TerritoryUSA United States
CitySan Diego
Period20/08/2321/08/23

Bibliographical note

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Funding

The authors acknowledge the UKRI for funding (EP/V026917/1) the current project. Material in the manuscript is relevant to U.K. patent application number 2219561.4.

Keywords

  • Fluorescence spectral fingerprint (FSF)
  • Forensic Science
  • Novel Psychoactive Substances (NPS)
  • Synthetic cannabinoids (SCs)

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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