Surface-enhanced Raman scattering patch and attachable sensor using the same
The present invention relates to a surface-enhanced Raman scattering patch and an attachable sensor using same. More particularly, the present invention relates to a surface-enhanced Raman scattering patch which allows continuous monitoring of drug administration and harmful substance detection to be accurately and easily performed, an attachable sensor using same, and a method for manufacturing same.
1. A surface-enhanced Raman scattering patch configured to be being attached to a test subject comprising:
a protein film configured to absorb detection-target molecules directly from the test subject, and allow penetration of the detection-target molecules;
a metal-containing nanostructure coating layer directly disposed on the film such that the absorbed detection-target molecules penetrate to the metal-containing nanostructure layer; and
a flexible protective layer formed on the metal-containing nanostructure layer, the protective layer configured to prevent an entry of outside substances, and
an adhesion layer,
wherein the protein film comprises at least one selected from silk, collagen, elastin, keratin, and reflectin,
wherein the protective layer and the adhesion layer are transparent to analyze detection-target molecules T with a Raman Spectroscopy analyzer, and
wherein the metal containing nanostructure layer comprises nanowires and the nanowires are stacked in irregular directions to form multiple cross points.
2. The surface-enhanced Raman scattering patch of claim 1 , wherein the film has a thickness of 1 nm˜1 μm.
3. The surface-enhanced Raman scattering patch of claim 1 , wherein the metal containing nanostructure layer has a thickness of 1 nm˜1 μm.
4. The surface-enhanced Raman scattering patch of claim 1 , wherein the metal containing nanostructure layer further comprises nanoparticles.
5. The surface-enhanced Raman scattering patch of claim 4 , wherein the metal containing nanostructure layer comprises a nanowire having a length of 1˜30 μm.
6. The surface-enhanced Raman scattering patch of claim 4 , wherein the metal containing nanostructure layer comprises one or more types selected from a group consisting of nanoparticles and nanowires having diameters of 5˜100 nm.
7. The surface-enhanced Raman scattering patch of claim 1 , wherein the metal containing nanostructure layer comprises a metal selected from a group consisting of Ag, Au, Al, Co, Cu, Fe, Li, Ni, Pd, Pt, Rh, and Ru or an alloy thereof.
8. The surface-enhanced Raman scattering patch of claim 1 , wherein the protective layer prevents penetration of the detection-target molecules.
9. The surface-enhanced Raman scattering patch of claim 1 , wherein the protective layer allows a penetration of a Raman laser.
10. The surface-enhanced Raman scattering patch of claim 1 , wherein the protective layer and the adhesion layer allow a penetration of a Raman laser.
11. The surface-enhanced Raman scattering patch of claim 1 , wherein the protective layer is waterproof.
12. An attachable surface-enhanced Raman scattering sensor comprising the surface enhanced Raman scattering patch of claim 1 .
13. The attachable surface-enhanced Raman scattering sensor of claim 12 , wherein the attachable surface-enhanced Raman scattering sensor is used attached to an animal, a plant, a food packaging, or a medicine packaging.
14. A method for manufacturing an attachable surface-enhanced Raman scattering sensor of claim 12 , the method comprising:
forming a protein film by coating a protein solution;
forming a metal-containing nanostructure layer by coating a metal-containing nanostructure solution over the protein film; and
forming a protective layer over the metal-containing nanostructure layer after drying.
15. The method for manufacturing an attachable surface-enhanced Raman scattering sensor according to claim 14 , wherein the protein solution is coated over a substrate having a hydrophobic surface.
16. The method for manufacturing an attachable surface-enhanced Raman scattering sensor according to claim 14 , wherein the forming of the metal-containing nanostructure layer comprises hardening the protein film after coating the metal-containing nanostructure solution.
17. The method for manufacturing an attachable surface-enhanced Raman scattering sensor according to claim 14 , wherein the forming of the protective layer comprises contacting the metal-containing nanostructure layer onto an adhesive surface of the protective layer to transfer the protein film and the metal-containing nanostructure layer onto the protective layer.