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1. WO2022008859 - NEW AND IMPROVED SUBSTRATES FOR RAMAN SPECTROSCOPY

Publication Number WO/2022/008859
Publication Date 13.01.2022
International Application No. PCT/GB2021/000076
International Filing Date 30.06.2021
IPC
G01J 3/44 2006.1
GPHYSICS
01MEASURING; TESTING
JMEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
3Spectrometry; Spectrophotometry; Monochromators; Measuring colours
28Investigating the spectrum
44Raman spectrometry; Scattering spectrometry
G01N 21/65 2006.1
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible or ultra-violet light
62Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
63optically excited
65Raman scattering
Applicants
  • THE SECRETARY OF STATE FOR DEFENCE [GB]/[GB]
Inventors
  • NIXON, Clare Michelle
  • STONE, Corrine, Amy
  • SHAND, Neil, Charles
  • CLARK, Terry
Agents
  • FARNSWORTH, Alastair Graham
Priority Data
2010387.507.07.2020GB
2102465.822.02.2021GB
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) NEW AND IMPROVED SUBSTRATES FOR RAMAN SPECTROSCOPY
(FR) NOUVEAUX SUBSTRATS AMÉLIORÉS DE SPECTROSCOPIE RAMAN
Abstract
(EN) New and improved substrates and methods for Raman Spectroscopy are provided, capable of enabling detection of materials that are generally difficult to detect through use of surface enhanced Raman spectroscopy (SERS). A Raman substrate is provided having a surface comprising a fluorocarbon polymer, wherein the fluorocarbon polymer comprises, or is assembled from, perfluoroalkyl acrylate monomer units. The fluorocarbon polymer may be generated on a substrate via plasma polymerisation of the monomer CH2=CR1C(O)O(CH2)x(CF2)yCF3 Such Raman substrates provide a means for detecting materials that are not strongly SERS active, such as explosives RDX and PETN.
(FR) L'invention concerne de nouveaux substrats et procédés améliorés de spectroscopie Raman, permettant une détection de matériaux qui sont généralement difficiles à détecter par l'utilisation d'une spectroscopie Raman exaltée de surface (SERS). L'invention concerne donc un substrat Raman comportant une surface comprenant un polymère de fluorocarbone, le polymère de fluorocarbone comprenant des unités monomères d'acrylate de perfluoroalkyle, ou étant assemblé à partir de ces dernières. Le polymère de fluorocarbone peut être généré sur un substrat par le biais d'une polymérisation par plasma du monomère CH2=CR1C(O)O(CH2)x(CF2)yCF3 . Ces substrats Raman constituent un moyen de détection de matériaux qui ne sont pas fortement actifs du point de vue SERS, tels que les explosifs à base de RDX et de PETN.
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