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1. WO2007095723 - SEMICONDUCTOR NANOCRYSTALS FOR TIME DOMAIN OPTICAL IMAGING

Publication Number WO/2007/095723
Publication Date 30.08.2007
International Application No. PCT/CA2007/000233
International Filing Date 16.02.2007
IPC
C09K 11/00 2006.01
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
KMATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
11Luminescent, e.g. electroluminescent, chemiluminescent, materials
A61B 6/00 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
6Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
C09K 11/54 2006.01
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
KMATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
11Luminescent, e.g. electroluminescent, chemiluminescent, materials
08containing inorganic luminescent materials
54containing zinc or cadmium
C09K 11/88 2006.01
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
KMATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
11Luminescent, e.g. electroluminescent, chemiluminescent, materials
08containing inorganic luminescent materials
88containing selenium, tellurium or unspecified chalcogen elements
G01N 21/64 2006.01
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
64Fluorescence; Phosphorescence
CPC
A61K 49/0067
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
49Preparations for testing in vivo
001Preparation for luminescence or biological staining
0063characterised by a special physical or galenical form, e.g. emulsions, microspheres
0065the luminescent/fluorescent agent having itself a special physical form, e.g. gold nanoparticle
0067quantum dots, fluorescent nanocrystals
B82Y 5/00
BPERFORMING OPERATIONS; TRANSPORTING
82NANOTECHNOLOGY
YSPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
5Nanobiotechnology or nanomedicine, e.g. protein engineering or drug delivery
C09K 11/025
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
11Luminescent, e.g. electroluminescent, chemiluminescent materials
02Use of particular materials as binders, particle coatings or suspension media therefor
025non-luminescent particle coatings or suspension media
C09K 11/565
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
11Luminescent, e.g. electroluminescent, chemiluminescent materials
08containing inorganic luminescent materials
56containing sulfur
562Chalcogenides
565with zinc cadmium
C09K 11/883
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
11Luminescent, e.g. electroluminescent, chemiluminescent materials
08containing inorganic luminescent materials
88containing selenium, tellurium or unspecified chalcogen elements
881Chalcogenides
883with zinc or cadmium
G01N 21/6408
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 sub-millimetre waves, infrared, visible or ultraviolet 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
64Fluorescence; Phosphorescence
6408with measurement of decay time, time resolved fluorescence
Applicants
  • NATIONAL RESEARCH COUNCIL OF CANADA [CA]/[CA] (AllExceptUS)
  • YU, Kui [CA]/[CA] (UsOnly)
  • ABULROB, Abedelnasser [CA]/[CA] (UsOnly)
Inventors
  • YU, Kui
  • ABULROB, Abedelnasser
Agents
  • MITCHELL, Richard, J.
Priority Data
60/774,61521.02.2006US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) SEMICONDUCTOR NANOCRYSTALS FOR TIME DOMAIN OPTICAL IMAGING
(FR) NANOCRISTAUX SEMI-CONDUCTEURS POUR L'IMAGERIE OPTIQUE DU DOMAINE TEMPOREL
Abstract
(EN)
A method of performing high repetition rate laser time domain imaging employs as fluoroprobes semiconductor nanocrystals having a fluorescence lifetime less than the laser pulse separation, typically less than 5ns. The nanocrystals of the invention have a core/shell structure and may be surface treated to increase radiative decay. CdSe/Zns nanocrystals are particularly suitable.
(FR)
La présente invention concerne un procédé pour réaliser une imagerie du domaine temporel au laser à une fréquence de récurrence élevée, ce procédé mettant en oeuvre des nanocristaux semi-conducteurs de sondes fluorescentes ayant une durée de vie de fluorescence inférieure à la séparation des impulsions laser, généralement moins de 5 ns. Les nanocristaux de l'invention ont une structure à noyau/coquille et peuvent être traités en surface afin d'augmenter la désintégration radioactive. Des nanocristaux de CdSe/Zns sont particulièrement adaptés.
Also published as
Latest bibliographic data on file with the International Bureau