Surface Raman enhanced optical fiber probe and preparation method thereof

A surface Raman-enhanced, fiber-optic probe technology is used in Raman scattering, material analysis by optical means, measurement devices, etc. The effect of high scattering enhancement factor and high detection sensitivity

Pending Publication Date: 2021-06-18
杭州苏铂科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] From an application point of view, standard Raman detection instruments are relatively large and not easy to carry
Hand-held detection instruments solve the problem of portability, but they have limitatio

Method used

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  • Surface Raman enhanced optical fiber probe and preparation method thereof
  • Surface Raman enhanced optical fiber probe and preparation method thereof
  • Surface Raman enhanced optical fiber probe and preparation method thereof

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Embodiment Construction

[0022] In the following description, the present invention is described with reference to various examples. One skilled in the art will recognize, however, that the various embodiments may be practiced without one or more of the specific details, or with other alternative and / or additional methods, materials, or components. In other instances, well-known structures, materials, or operations are not shown or described in detail so as not to obscure aspects of the various embodiments of the invention. Similarly, for purposes of explanation, specific quantities, materials and configurations are set forth in order to provide a thorough understanding of embodiments of the invention. However, the invention may be practiced without these specific details. Furthermore, it should be understood that the various embodiments shown in the drawings are illustrative representations and are not necessarily drawn to scale.

[0023] In this specification, reference to "one embodiment" or "the...

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Abstract

The invention discloses a preparation method of a surface Raman enhanced optical fiber probe. The preparation method comprises the following steps: preparing a seed solution; adding the seed solution into a HAuCl4 solution to prepare a gold nanostar solution; processing the end surface of the optical fiber; and covering the gold nanostars on the surface of the end face of the processed optical fiber.

Description

technical field [0001] The invention relates to the technical field of nano-biological material preparation. Specifically, the present invention relates to a surface Raman enhanced optical fiber probe and a preparation method thereof. Background technique [0002] Surface Raman enhanced (SERS) applications are mainly concentrated in the fields of medicine, biology, homeland security, environmental pollution and food contamination, especially for the detection of food additives, drugs, pesticides and some pollutants with detection limits as low as single molecules. It has high sensitivity and excellent molecular specificity for molecular detection in biological cells and detection of hazardous explosives. The key to successful detection using SERS is the formation of high interstitial densities, also known as hot spots, less than 10 nm. When analytes attach to these hotspots, the Raman scattering signal is greatly enhanced. [0003] From an application point of view, stand...

Claims

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Application Information

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IPC IPC(8): G01N21/65
CPCG01N21/658
Inventor 周宇徐建华
Owner 杭州苏铂科技有限公司
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