Surface enhanced raman detection test paper and application thereof

A surface-enhanced Raman, detection test paper technology, applied in Raman scattering, nanotechnology for materials and surface science, liquid chemical plating, etc., can solve the problem of not preparing SERS detection test paper, etc.
CN102628809AInactive Publication Date: 2012-08-08JILIN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
JILIN UNIV
Publication Date
2012-08-08
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a piece of surface enhanced raman detection test paper and the application thereof, which belong to the technical field of ultra-sensitive test analysis, in particular to the piece of surface enhanced raman detection test paper and the application of the paper to detection of biological or chemical probe molecules with raman signals. The surface enhanced raman detection test paper is obtained by covering a precious metal layer on the surface of paper with a natural fiber micro nano multi-grade structure through the physical vapor deposition or chemical plating technology, the paper can be filter paper, parchment paper, napkin, newspaper or printing paper and the like, the precious metal film is gold or silver and the like, and the thickness of the precious metal film is 5 nanometers to 90 nanometers. Combined action of size, period and roughness enables incident light to generate a local electric field on the surface of a multi-stage structure and enables the electric field to be enhanced, and the detection limit can reach 10-10mol / L. The test paper has the advantages of being good in flexibility, low in cost, free of environment pollution, capable of being prepared in batch and the like, thereby being capable of being used in detection of probe molecules such as rhodamine 6G, p-aminothiophenol, riboflavin or ethanol and the like.
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Description

technical field

[0001] The invention belongs to the technical field of ultra-sensitive testing and analysis, and in particular relates to a surface-enhanced Raman detection test paper which can be prepared on a large scale, can be widely used, is highly efficient, and is environmentally friendly, and is used in detecting biological or chemical probes with Raman signals. Needle molecular applications. Background technique

[0002] Surface-enhanced Raman scattering (SERS) is an important technique in Raman spectroscopy. As an important trace analysis method, it has been widely studied and applied since its inception. SERS detection enables enhancement factors up to 10 14 ~10 15 , enabling single-molecule detection. The surface selection rule and the selectivity of resonance enhancement enable SERS to enhance only the target molecule or group in an extremely complex system and obtain simple and clear spectral information. In addition, SERS spectroscopy can be conveniently ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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