Fluorescent sensors for marijuana breath test
AssigneesUniversity of Utah Research Foundation, Gentex Corporation
InventorsLing Zang, Yanke Che, Jiangfan Shi
Life of this patent
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Abstract
A molecular sensor for detecting marijuana, includes a compound having a structure of Y-[D]n-A-Z, D is an electron donor group according to Formula (I): A is an electron acceptor group according to Formula (II): Y is R3, R3-A, or R3-D-A, wherein Z is R3 or [D]m-R3, n is an integer between 1 to 5, m is an integer between 1 to 3, R1 and R2 are each an alkyl chain, R3 is an alkoxyphenyl end group.
Claims20
A molecular sensor for detecting marijuana, comprising:
- a compound having a structure of Y-[D]n-A-Z, wherein D is an electron donor group according to Formula (I):
- wherein A is an electron acceptor group according to Formula (II):
- wherein Y is R3, R3-A, or R3-D-A, wherein Z is R3 or [D]m-R3, wherein n is an integer between 1 to 5, wherein m is an integer between 1 to 3, wherein R1 and R2 are each an alkyl chain, wherein R3 is an alkoxyphenyl end group.
A fluorescent sensor for detecting tetrahydrocannabinol (THC) or cannabidiol (CBD) comprising:
- a porous film, wherein the porous film comprises an oligomer including fluorescent electron donor-acceptor molecules in a conjugation structure;
- a housing;
- an inlet and an outlet, wherein the porous film is positioned between the inlet and the outlet;
- a light excitation source;
- and
- a fluorescence detector.
A method for detecting tetrahydrocannabinol (THC) or cannabidiol (CBD) in a gaseous sample, the method comprising:
- measuring a first fluorescence response of a porous film to establish a threshold, wherein the porous film comprises an oligomer with a general structure of Y-[D]n-A-Z, wherein D is an electron donor group according to Formula (I):
- wherein A is an electron acceptor group according to Formula (II):
- wherein Y is R3, R3-A, or R3-D-A, wherein Z is R3 or [D]m-R3, wherein n is an integer between 1 to 5, wherein m is an integer between 1 to 3, wherein R1 and R2 are each an alkyl chain, wherein R3 is an alkoxyphenyl end group;
- exposing said gaseous sample to the porous film;
- measuring a second fluorescence response of the porous film, wherein the first fluorescence response is larger than the second fluorescence response when said gaseous sample comprises THC or CBD;
- and
- outputting a response if said gaseous sample contains THC or CBD.
Dependencies are inferred from the claim text.