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A high-sensitivity sensing film and surface plasmon resonance sensing detection system

A detection system and high-sensitivity technology, applied in the field of sensors, can solve the problem of insufficient sensitivity, and achieve the effects of improving sensitivity, simple structure and easy implementation.

Inactive Publication Date: 2018-07-06
SHENZHEN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

These structures have greatly improved the performance of biosensors by introducing graphene, but they still have a shortcoming, that is, the sensitivity is not high enough, so it is necessary to further improve their sensitivity

Method used

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  • A high-sensitivity sensing film and surface plasmon resonance sensing detection system
  • A high-sensitivity sensing film and surface plasmon resonance sensing detection system
  • A high-sensitivity sensing film and surface plasmon resonance sensing detection system

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Embodiment Construction

[0029] In view of the shortcomings of surface plasmon resonance biosensors in the prior art that cannot simultaneously ensure high sensitivity, high oxidation resistance of the metal layer, and low cost, the purpose of the present invention is to provide a high-sensitivity sensing film and surface plasmon resonance The sensing and detecting system can greatly improve the sensitivity of the surface plasmon resonance sensing and detecting system, and has a simple structure and is easy to implement without using traditional precious metal gold, thereby reducing production costs.

[0030] In order to make the object, technical solution and effect of the present invention more clear and definite, the present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0031] see ...

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Abstract

The invention discloses a high-sensitivity sensing film and a surface plasmon resonance sensing detection system. The sensing film comprises a one-dimensional metallic photonic crystal layer and a graphene layer, wherein the one-dimensional metallic photonic crystal layer covers the graphene layer, and the graphene layer covers a part of a sample layer. According to the invention, since the high-sensitivity sensing film including the one-dimensional metallic photonic crystal layer and the graphene layer is used to replace conventional precious metals as a sensing film used for generating surface plasmon polaritons, the sensitivity of the surface plasmon resonance sensing system is greatly improved; and the surface plasmon resonance sensing system has the advantages of simple structure, easiness in implementation, no need for usage of traditional precious metals and reduction in production cost.

Description

technical field [0001] The invention relates to the technical field of sensors, in particular to a high-sensitivity sensing film and a surface plasmon resonance sensing and detecting system. Background technique [0002] Surface plasmon resonance (Surface Plasmon Resonance, SPR) is a charge density vibration effect that exists on the interface between metal and dielectric excited by electromagnetic waves. It is very sensitive to changes in the refractive index of the environmental medium. It is an optical sensing technology. No sample labeling is required, and the interaction between biomolecules can be monitored in real time, which has become a favorable tool for biomolecular monitoring in recent years. [0003] Such as figure 1 As shown, the traditional surface plasmon resonance biosensors use the noble metal gold as the metal layer to generate surface plasmons. Compared with other metals (such as silver, aluminum, copper, etc.), the biggest advantage of gold is its anti-...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B9/00B32B9/04B32B15/04G01N21/55
CPCB32B9/007B32B9/04B32B9/041B32B15/04B32B2250/42B32B2307/416B32B2311/08B32B2311/12B32B2311/24B32B2313/04B32B2457/00G01N21/553
Inventor 项元江吴雷明蒋乐勇徐海林郭郡伍计鹏
Owner SHENZHEN UNIV
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