Microwave trigger metal-enhanced chemiluminescence (MT MEC) and spatial and temporal control of same
The present invention relates to a method of imaging structures and features using plasmonic emissions from metallic surfaces caused by chemiluminescence based chemical and biological reactions wherein imaging of the reactions is enhanced by the use of microwave energy and further enhanced by using metallic geometric structures for spatially and temporally controlling the biological and chemical reactions.
1. A method for measuring a target molecule in a test sample, the method comprising:
immobilizing metallic structures on a surface substrate, wherein the metallic structures are in a patterned shape and the patterned shape is a triangle with an apex and wherein the apexes of two triangles are arranged in alignment and adjacent to a reactive zone formed between the apexes, wherein the reactive zone has a diameter from about 1 mm to about 5 mm;
positioning a capture molecule having affinity for the target molecule on the metallic structures or adjacent to the metallic structures;
contacting the capture molecule with the test sample suspected of comprising the target molecules, wherein the target molecule will bind to the capture molecule to form a complex;
contacting the complex with a detector molecule having affinity for the target molecule, wherein the detector molecule comprises a chemiluminescent label;
exposing the chemiluminescent label to a trigger molecule that will chemically react with the chemiluminescent label to induce a chemical reaction that produces a chemically electronically excited state; and
exposing the chemical reaction to microwave energy in an amount to enhance emissions; and
measuring the intensity of emissions.
2. The method of claim 1 , wherein the target molecule is nucleic acids, aromatic carbon ring structures, NADH, FAD, amino acids, carbohydrates, steroids, flavins, proteins, DNA, RNA, oligonucleotides, peptide nucleic acids, fatty acids, glucose, vitamins, purines, pyrimidines, formycin, lipids, phytochrome, phytofluor, or antibodies.
3. The method of claim 1 , wherein the metallic structure is fabricated from silver, gold, copper, platinum, aluminum or combinations thereof.
4. The method of claim 1 , wherein the chemiluminescent label is positioned about 5 nm to about 200 nm from the metallic structure.
5. The method of claim 1 , wherein the chemiluminescent label is positioned is positioned about 5 nm to about 30 nm from the metallic structure.
6. The method of claim 1 , wherein the microwave energy has a power from about 50 to 300 watts.
7. The method of claim 1 wherein measuring the intensity of the radiation includes emitted chemiluminescence energy in polarized or unpolarized form.
8. The method of claim 1 , wherein the microwave energy has a frequency from about 1 GHz to about 5 GHz.
9. The method of claim 8 , wherein the microwave energy is delivered in a continuous or pulsed mode.
10. The method of claim 1 , wherein the surface substrate is glass, polymeric, paper, or combination thereof.
11. The method of claim 1 , wherein the target molecule is a pathogen and the immobilized capture molecule is a nucleic acid sequence probe complementary to a known nucleic acid sequence of the target pathogen.
12. The method of claim 11 , wherein the chemiluminescent label is attached to the target pathogen.
13. The method of claim 1 , wherein the surface substrate is a polymeric material including multiple wells for including the capture molecule.
14. A method for measuring a target molecule in a test sample, the method comprising:
immobilizing metallic structures on a surface substrate, wherein the surface substrate is a polymeric material including multiple wells, wherein each well has at least two triangle metallic structures adjacent thereto and wherein an apex of each triangle is aligned with each other and positioned opposite to each other thereby providing a reactive zone therebetween, wherein the reactive zone has a diameter from about 1 mm to about 5 mm;
positioning a capture molecule having affinity for the target molecule on the metallic structures or adjacent to the metallic structures;
contacting the capture molecule with the test sample suspected of comprising the target molecules, wherein the target molecule will bind to the capture molecule to form a complex;
contacting the complex with a detector molecule having affinity for the target molecule, wherein the detector molecule comprises a chemiluminescent label;
exposing the chemiluminescent label to a trigger molecule that will chemically react with the chemiluminescent label to induce a chemical reaction that produces a chemically electronically excited state; and
exposing the chemical reaction to microwave energy in an amount to enhance emissions; and measuring the intensity of emissions.
15. A system for measuring chemiluminescence, the system comprising:
a substrate surface comprising metallic structures, wherein the metallic structures are in a patterned shape and the patterned shape is a triangle with an apex and wherein the apexes of two triangles are arranged in alignment and adjacent to a reactive zone formed between the apexes, wherein the reactive zone has a diameter of about 1 mm to about 5 mm;
a capture molecule attached to the metallized substrates or positioned adjacent thereto for capture of a target molecule in a testing sample;
a detector molecule having an affinity for the target molecule, wherein the detector molecule comprises a chemiluminescence label;
a triggering agent that chemically reacts with the chemiluminescence label to generate a chemically induced electronically exited state;
a source of microwave energy; and
a measuring device to measure electromagnetic emissions from the metallized substrates.
16. The system of claim 15 , wherein the system is an assay wherein the target molecule is nucleic acids, aromatic carbon ring structures, NADH, FAD, amino acids, carbohydrates, steroids, flavins, proteins, DNA, RNA, oligonucleotides, peptide nucleic acids, fatty acids, glucose, vitamins, purines, pyrimidines, formycin, lipids, phytochrome, phytofluor, or antibodies.
17. The system of claim 15 , wherein the metallic structures are fabricated from silver, gold, copper, platinum, aluminum or combinations thereof.
18. The system of claim 15 , wherein the chemiluminescent label is positioned is positioned about 5 nm to about 30 nm from the metallic structures.
19. The system of claim 15 , wherein the microwave energy has a power from about 50 to 300 watts.
20. The system of claim 15 , wherein multiple metallic structures are arranged to include a reactive zone.
21. The system of claim 15 wherein measuring the intensity of the radiation includes emitted chemiluminescence energy in polarized or unpolarized form.
22. The system of claim 15 , wherein the microwave energy has a frequency from about 1 GHz to about 5 GHz.
23. The system of claim 22 , wherein the microwave energy is delivered in a continuous or pulsed mode.
24. The system of claim 15 , wherein the surface substrate is glass, polymeric, paper, or combination thereof.
25. The system of claim 15 , wherein the target molecule is a pathogen and the immobilized capture molecule is a nucleic acid sequence probe complementary to a known nucleic acid sequence of the target pathogen.
26. The system of claim 25 , wherein the chemiluminescent label is attached to the target pathogen.
27. The system of claim 15 , wherein the surface substrate is a polymeric material including multiple wells for including the capture molecule.
28. A system for measuring chemiluminescence, the system comprising:
a substrate surface comprising metallic structures, wherein the surface substrate is a polymeric material including multiple wells, wherein each well has at least two triangle metallic structures adjacent thereto and wherein an apex of each triangle is aligned with each other and positioned opposite to each other thereby providing a reactive zone therebetween, wherein the reactive zone has a diameter from about 1 mm to about 5 mm;
a capture molecule attached to the metallized substrates or positioned adjacent thereto for capture of a target molecule in a testing sample;
a detector molecule having an affinity for the target molecule, wherein the detector molecule comprises a chemiluminescence label;
a triggering agent that chemically reacts with the chemiluminescence label to generate a chemically induced electronically exited state;
a source of microwave energy; and
a measuring device to measure electromagnetic emissions from the metallized substrates.
29. An assay kit comprising:
a substrate surface comprising at least two metallized structures, wherein each of the metallic structures are shaped as a triangle with an apex and wherein the apexes of the two triangles are arranged in alignment and adjacent to a reactive zone formed between the apexes, wherein the reactive zone has a diameter of about 1 mm to about 5 mm;
a capture molecule positioned on the metallized substrate or adjacent thereto wherein the capture molecule has affinity for a target molecule to be determined;
a detector molecule having an affinity for the target molecule, wherein the detector molecule comprises a chemiluminescence label;
a triggering component that chemically reacts with the chemiluminescence label to generate a chemically induced electronically exited state that can be detected to determine target molecule.
30. The system of claim 29 , wherein the substrate is a polymeric material including multiple wells for including the capture molecule.
31. The system of claim 30 , wherein each well has at least two triangle metallic structures adjacent thereto or in the bottom of the well and wherein an apex of each triangle is aligned with each other and positioned opposite to each other thereby providing the reactive zone therebetween.
32. The reactive zone system of claim 30 , wherein the two immobilized metallic structures are positioned in an assay well.