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Substrate system used for surface enhanced Raman scattering, and production method thereof

A surface-enhanced Raman and substrate technology, applied in the direction of Raman scattering, nanotechnology for materials and surface science, nanotechnology, etc., can solve the problem that the enhancement effect of Raman intensity is not obvious, affects the spectrum of adsorbed molecules, and stabilizes issues such as uncontrollable sex

Active Publication Date: 2017-07-04
WUYI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the surface roughness, regularity, and stability of particle surface chemical properties provided by these self-assembled active substrates are difficult to control, which affects the stability, uniformity, and repeatability of the spectra of adsorbed molecules, and the enhancement effect on Raman intensity is not It is clear

Method used

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  • Substrate system used for surface enhanced Raman scattering, and production method thereof
  • Substrate system used for surface enhanced Raman scattering, and production method thereof
  • Substrate system used for surface enhanced Raman scattering, and production method thereof

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Embodiment approach

[0044] According to a preferred embodiment of the present invention, the active material 2 is a nanoscale noble metal.

[0045] In a further preferred embodiment, the active material 2 is nano-gold, nano-silver or nano-copper.

[0046] In a further preferred embodiment, the active material 2 is nano silver.

[0047] Among them, when the nano-noble metal is used as the substrate to load the sample, it is easy to generate surface adsorption with the sample, so that the electrons on the metal surface and the adsorbed molecules have a coupling effect to achieve resonance, thereby increasing the Raman scattering area. The Mann signal will be greatly enhanced, enabling the detection of monolayers adsorbed on the surface of noble metals, giving structural information on the surface molecules.

[0048] In the present invention, the nano-noble metal is arranged on the electret 1, and the electrons on the electret 1 will migrate to the nano-noble metal, so that the nano-noble metal is ...

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Abstract

The invention discloses a substrate system used for surface enhanced Raman scattering, and a production method thereof. The substrate system comprises an electret 1 and an active substance 1, the electret 1 is provided with an active area 11 provided with a groove, and the active substance 2 is loaded in the groove; and the electret 1 is cylindrical in shape, and adjusting rods 12 are inserted to the electret 1, and are used for adjusting the deformation of the electret 1. The substrate system is used in the surface enhanced Raman scattering to obtain a strong Raman signal, and the intensity of the Raman signal is regulated through controlling the deformation of the electret.

Description

technical field [0001] The invention belongs to the field of substrates, in particular to a substrate system for detection, in particular to a substrate system for surface-enhanced Raman scattering and a preparation method thereof. Background technique [0002] Surface-enhanced Raman Scattering (SERS) refers to the determination of samples adsorbed on the surface of colloidal metal particles such as silver, gold, or copper, or adsorbed on the rough surface of these metal sheets by the usual Raman spectroscopy. samples, this technique is also known as SERS spectroscopy. Among them, SERS spectroscopy overcomes the shortcomings of conventional Raman spectroscopy, such as low detection sensitivity and susceptibility to fluorescence interference, and the intensity of its Raman spectroscopy can be increased by 10 3 ~10 6 times, and the concentration detection of liquid samples can also reach 10 -14 mol / L or less. [0003] The principle of this technology is that the electrons ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/65C23C24/00B82Y30/00
CPCB82Y30/00C23C24/00G01N21/658
Inventor 范海陆何鑫赵燕
Owner WUYI UNIV