Method for preparing SERS active substrate based on grating structure of optical disc

A technology of grating structure and active substrate, applied in the field of preparation of SERS active substrate, can solve the problem of not being able to prepare a SERS active substrate with high sensitivity, uniformity, repeatability and stability, and achieve excellent SERS performance, uniformity guarantee, Satisfy the effect of rapid analysis

Inactive Publication Date: 2019-05-17
SHANGHAI NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The methods for preparing SERS active substrates in the prior art have the disadvantage of not being able to prepare highly sensitive, uniform, repeatable and stable SERS active substrates

Method used

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  • Method for preparing SERS active substrate based on grating structure of optical disc
  • Method for preparing SERS active substrate based on grating structure of optical disc
  • Method for preparing SERS active substrate based on grating structure of optical disc

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Embodiment Construction

[0040] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0041] In the invention, unless stated to the contrary, the orientation words used generally refer to the orientation shown with reference to the drawings.

[0042] At present, studies have shown that the periodic spiral data tracks of metals such as gold and silver are usually covered on the optical disc. In the prior art, researchers have used the grating structure of optical discs such as CD-R, BD-R or DVD as The SERS active substrate was prepared by magnetron sputtering, microcontact printing technology, and electrophoretic deposition of nanoparticles. Therefore, it is demonstrated that SERS active substrates can be prepared based on the optical grating str...

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Abstract

The invention relates to the field of preparation of SERS active substrates, and discloses a method for preparing an SERS active substrate based on a grating structure of an optical disc. The SERS active substrate is prepared by performing ink jet printing on the grating structure of the optical disc. The method of the invention has the beneficial effects that ink printing can be accurately carried out in a predefined area of the optical disc through an ink jet printing technology, the consumption of ink can be controlled, the ink waste can be reduced, and the SERS substrate with high repetition rate can also be produced.

Description

technical field [0001] The invention relates to the field of preparation of SERS active substrates, in particular to a method for preparing SERS active substrates based on optical disc grating structures. Background technique [0002] SERS is the English abbreviation of Surface-enhanced Raman Scattering, which refers to surface-enhanced Raman scattering. SERS is an advanced surface analysis technology at present. Raman spectroscopy is a kind of scattering spectrum, but the ordinary Raman scattering signal of the detected molecule is generally weak. This technology can greatly improve the adsorption of molecules on or near the metal surface. Raman scattering signal. Specifically, SERS technology means that when the molecules to be tested are adsorbed on the surface or sol of some specially prepared metal (such as gold, silver, etc.) nanostructures, their Raman signals can be greatly improved. Metal nanostructures that can enhance the Raman signal of the analyte are called S...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B5/18G01N21/65
Inventor 肖桂娜李玲段俊丽
Owner SHANGHAI NORMAL UNIVERSITY
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