The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 29, 2020
Filed:
Jul. 28, 2016
Ecole Polytechnique, Palaiseau, FR;
Centre National DE LA Recherche Scientifique, Paris, FR;
Cédric Bouzigues, Paris, FR;
Mouna Abdesselem, Bourg la Reine, FR;
Antigoni Alexandrou, Palaiseau, FR;
Thierry Gacoin, Bures sur Yvette, FR;
Jean-Pierre Boilot, Meudon, FR;
ECOLE POLYTECHNIQUE, Palaiseau, FR;
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, Paris, FR;
Abstract
A method which can be used to analyse oxidising species in a sample, including: placing the sample in contact with a first photoluminescent agent, and a second optically active agent, at least the first photoluminescent agent including nanoparticles doped with rare earth elements and being oxidisable, the luminescence of the first photoluminescent agent varying, at least at one first wavelength, with the amount of oxidising species, and the signal emitted by the second optically active agent being constant or varying, at least at one second wavelength other than the first wavelength, with the amount of oxidising species in a direction opposite to the luminescence of the first photoluminescent agent; energising the first and second agents in the sample; measuring the light intensity of the sample at least at the first and second wavelengths; and assessing the presence and/or the amount of oxidising species by interpreting the measured light intensities.