Method and system for the analysis of saliva using a sensor array
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
G01N-021/00
G01N-033/00
G01N-021/64
C12M-001/34
C12M-003/00
G01N-033/566
G01N-033/543
G01N-033/545
G01N-021/76
G01N-033/92
G01N-033/44
출원번호
UP-0010816
(2004-12-13)
등록번호
US-7651868
(2010-02-24)
발명자
/ 주소
McDevitt, John T.
Anslyn, Eric V.
Shear, Jason B.
Neikirk, Dean P.
Christodoulides, Nick J.
출원인 / 주소
The Board of Regents of The University of Texas System
대리인 / 주소
Fulbright & Jaworski L.L.P.
인용정보
피인용 횟수 :
30인용 특허 :
154
초록▼
A system for the rapid characterization of analytes in saliva. In one embodiment, a system for detecting analytes includes a light source, a sensor array, and a detector. The sensor array is formed from a supporting member, in which a plurality of cavities may be formed. A series of chemically sensi
A system for the rapid characterization of analytes in saliva. In one embodiment, a system for detecting analytes includes a light source, a sensor array, and a detector. The sensor array is formed from a supporting member, in which a plurality of cavities may be formed. A series of chemically sensitive particles, in one embodiment, are positioned within the cavities. The particles may produce a signal when a receptor, coupled to the particle, interacts with the cardiovascular risk factor analyte and the particle-analyte complex is visualized using a visualization reagent. Using pattern recognition techniques, the analytes within a multi-analyte fluid may be characterized. In an embodiment, each cavity of the plurality of cavities is designed to capture and contain a specific size particle. Flexible projections may be positioned over each of the cavities to provide retention of the particles in the cavities.
대표청구항▼
What is claimed is: 1. A method for detecting one or more cardiovascular risk factor analytes in saliva comprising: passing saliva over a sensor array, the sensor array comprising: a supporting member comprising a plurality of cavities formed within the supporting member; a plurality of particles,
What is claimed is: 1. A method for detecting one or more cardiovascular risk factor analytes in saliva comprising: passing saliva over a sensor array, the sensor array comprising: a supporting member comprising a plurality of cavities formed within the supporting member; a plurality of particles, at least one of the particles positioned in at least one of the cavities, wherein at least one of the particles is configured to produce a signal in the presence of at least one of the cardiovascular risk factor analytes during use, wherein at least one of the particles is configured to (a) produce a signal in the presence of C-reactive protein and (b) exhibit a sensitivity sufficient for detecting C-reactive protein levels in saliva of less than 1.9 ng/ml; and monitoring a spectroscopic change of at least one of the particles as the saliva is passed over the sensor array. 2. The method of claim 1, wherein the sensor array further comprises a bottom layer and a cover, wherein the bottom layer is coupled to a bottom surface of the supporting member, and wherein the cover is coupled to a top surface of the supporting member; and wherein both the bottom layer and the cover are coupled to the supporting member such that at least one of the particles is substantially contained in at least one of the cavities by the bottom layer and the cover, and wherein the bottom layer and the cover are substantially transparent to light produced by a light source. 3. The method of claim 1, wherein the sensor array further comprises a cover, the cover being coupled to the supporting member such that at least one of the particles is substantially contained in at least one of the cavities by the cover, and wherein the cover is configured to allow the saliva to pass through the cover to at least one of the particles, and wherein the supporting member and the cover are substantially transparent to light produced by a light source. 4. The method of claim 1, wherein the sensor array further comprises a cover positioned at a distance above the upper surface of the supporting member such that an opening is formed between the supporting member and the cover to allow the saliva to enter at least one of the cavities via the opening, and wherein the cover inhibits dislodgment of at least one of the particles from at least one of the cavities during use. 5. The method of claim 1, wherein at least one of the cavities is configured such that the saliva entering the cavity passes through the supporting member during use. 6. The method of claim 1, wherein at least one of the cavities is substantially tapered such that the width of the cavity narrows in a direction from a top surface of the supporting member toward a bottom surface of the supporting member, and wherein a minimum width of the cavity is substantially less than a width of at least one of the particles. 7. The method of claim 1, wherein at least one of the particles comprises a receptor molecule coupled to a polymeric resin. 8. The method of claim 1, wherein at least one of the particles comprises a receptor molecule coupled to a polymeric resin, and wherein the receptor molecule comprises a peptide. 9. The method of claim 1, wherein at least one of the particles comprises a receptor molecule coupled to a polymeric resin, and wherein the receptor molecule comprises a synthetic receptor. 10. The method of claim 1, wherein at least one of the particles comprises a receptor molecule coupled to a polymeric resin, and wherein the receptor molecule comprises an antibody. 11. The method of claim 1, wherein at least a portion of the particle comprises a receptor molecule coupled to a polymeric resin, and wherein the receptor molecule comprises an antigen. 12. The method of claim 1, wherein at least one of the cardiovascular risk factor analytes is interleukin-6. 13. The method of claim 1, wherein at least one of the cardiovascular risk factor analytes is high density lipoprotein, low density lipoprotein, very low density lipoprotein, cholesterol, interleukin-6, intercellular adhesion molecule-1, fibrinogen, homocysteine, folate, calcium, lipoprotein a, apolipoprotein A-1, apolipoprotein B, Helicobacter pylon, chlamydia pneumoniae, Herpes virus hominis, or cytomegalovirus. 14. The method of claim 1, further comprising simultaneously detecting the presence of two or more cardiovascular risk factor analytes in saliva. 15. The method of claim 1, further comprising simultaneously detecting the presence of two or more cardiovascular risk factor analytes in saliva, wherein one of the cardiovascular risk factor analytes is high density lipoprotein, low density lipoprotein, very low density lipoprotein, cholesterol, interleukin-6, intercellular adhesion molecule-1, fibrinogen, homocysteine, folate, calcium, lipoprotein a, apolipoprotein A-1, apolipoprotein B, Helicobacter pylon, chlamydia pneumoniae, Herpes virus hominis, or cytomegalovirus. 16. The method of claim 1, wherein two or more of the particles are configured to produce a detectable signal in the presence of one or more cardiac risk factor analytes. 17. The method of claim 1, wherein the supporting member comprises silicon. 18. The method of claim 1, wherein the sensor array further comprises channels in the supporting member, wherein the channels are configured to allow the saliva to flow through the channels into and away from at least one of the cavities. 19. The method of claim 1, wherein the sensor array further comprises a pump coupled to the supporting member, wherein the pump is configured to direct the saliva towards at least one of the cavities, and wherein a channel is formed in the supporting member, the channel coupling the pump to at least one of the cavities such that the saliva flows through the channel to at least one of the cavities during use. 20. A method for detecting two or more cardiovascular risk factor analytes in saliva comprising: passing saliva over a sensor array, the sensor array comprising: a supporting member comprising two or more cavities formed within the supporting member; and two or more particles, at least a first one of the particles positioned in a first one of the cavities and a second one of the particles positioned in a second one of the cavities, wherein at least the first one of the particles is configured to (a) produce a signal in the presence of C-reactive protein during use and (b) exhibit a sensitivity sufficient for detecting C-reactive protein levels in saliva of less than 1.9 ng/ml, and wherein at least the second one of the particles is configured to produce a signal in the presence of a cardiovascular risk factor analyte different than C-reactive protein during use; and monitoring a spectroscopic change of at least one of the particles as the saliva is passed over the sensor array.
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