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1. (WO2017139797) LANTHANIDE-DOPED NANOPARTICLE COMPOSITIONS FOR DETECTING MICROORGANISMS
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2017/139797 International Application No.: PCT/US2017/017728
Publication Date: 17.08.2017 International Filing Date: 13.02.2017
IPC:
G01N 21/63 (2006.01) ,G01N 21/94 (2006.01) ,C12Q 1/00 (2006.01)
G PHYSICS
01
MEASURING; TESTING
N
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21
Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible, or ultra-violet light
62
Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
63
optically excited
G PHYSICS
01
MEASURING; TESTING
N
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21
Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible, or ultra-violet light
84
Systems specially adapted for particular applications
88
Investigating the presence of flaws, defects or contamination
94
Investigating contamination, e.g. dust
C CHEMISTRY; METALLURGY
12
BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
Q
MEASURING OR TESTING PROCESSES INVOLVING ENZYMES OR MICRO-ORGANISMS; COMPOSITIONS OR TEST PAPERS THEREFOR; PROCESSES OF PREPARING SUCH COMPOSITIONS; CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL OR ENZYMOLOGICAL PROCESSES
1
Measuring or testing processes involving enzymes or micro-organisms; Compositions therefor; Processes of preparing such compositions
Applicants:
BACTRAC TECHNOLOGIES LLC [US/US]; 15808 Highview Dr. Apple Valley, Minnesota 55124, US
Inventors:
HSIAO, Vivian; US
MAR, Vincent; US
Agent:
YU, Steven; US
Priority Data:
62/295,05313.02.2016US
Title (EN) LANTHANIDE-DOPED NANOPARTICLE COMPOSITIONS FOR DETECTING MICROORGANISMS
(FR) COMPOSITIONS DE NANOPARTICULES DOPÉES AUX LANTHANIDES POUR DÉTECTER DES MICRO-ORGANISMES
Abstract:
(EN) A particulate lanthanide-doped material comprising an inorganic host phosphor and a lanthanide ion dopant. With the lanthanide-doped material being in an oxidized state, photoluminescence is suppressed. Photoluminescence of the material can be activated by the presence of a reducing substance that reduces the lanthanide-doped material in a redox interaction. The lanthanide-doped material can be used for biodetection (e.g. detecting the presence of microorganisms in a sample). This could have numerous applications, such as detecting the presence of contaminating microorganisms in a sample (e.g. in a food or cosmetic product).
(FR) L'invention concerne un matériau particulaire dopé aux lanthanides comprenant un phosphore hôte inorganique et un dopant de type ion lanthanide. Quand le matériau dopé aux lanthanides est dans un état oxydé, la photoluminescence disparaît. La photoluminescence peut être activée par la présence d'une substance réductrice qui réduit le matériau dopé aux lanthanides lors d'une interaction rédox. Le matériau dopé aux lanthanides peut être utilisé en biodétection (p. ex., détection de la présence de micro-organismes dans un échantillon). Les applications pourraient être nombreuses, notamment la détection de la présence de microorganismes contaminants dans un échantillon (p. ex., dans un produit alimentaire ou cosmétique).
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
CN107850541