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Preparation method of bionic-based super-hydrophobic integrated chip, SERS (Surface Enhanced Raman Scattering) platform and application

An integrated chip, super-hydrophobic technology, applied in the field of preparation of super-hydrophobic integrated chips, can solve the problems of hindering the application of graphene, complex preparation process, low detection sensitivity, etc., achieving strong repeatability and controllability, and simple manufacturing method. , the effect of strong signal uniformity

Pending Publication Date: 2022-04-12
SHANDONG UNIV
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  • Application Information

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Problems solved by technology

However, the preparation process of most graphene SERS substrates is complicated, the detection period is long, the detection sensitivity is low, and the stability is poor, which hinders the application of graphene in the preparation of SERS substrates.

Method used

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  • Preparation method of bionic-based super-hydrophobic integrated chip, SERS (Surface Enhanced Raman Scattering) platform and application
  • Preparation method of bionic-based super-hydrophobic integrated chip, SERS (Surface Enhanced Raman Scattering) platform and application
  • Preparation method of bionic-based super-hydrophobic integrated chip, SERS (Surface Enhanced Raman Scattering) platform and application

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Embodiment Construction

[0042] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention.

[0043] The invention provides a method for preparing a bionic-based superhydrophobic integrated chip, such as figure 1 shown, including the following steps:

[0044](1) Place polyimide film 2 on PDMS substrate 3, use laser engraving machine 1 to prepare laser-induced graphene 4 on the surface of polyimide film 2, and obtain a superhydrophobic chip with rose petal effect, named RPE (rose -pedal effect superhydrophobic chip) 5;

[0045] (2) Coating organic solvent ethanol 8 on the surface of laser-induced graphene to obtain a superhydrophobic chip with lotus-leaf effect, named LLE (lotus-leaf effect superhydrophobic chip) 6, the adhesion performance of the lotus-leaf effect area is low Adhesion properties on the rose petal effect area;

[0046] (3) By adjusting the position a...

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Abstract

The invention relates to the field of analyte concentration and detection, and particularly discloses a preparation method of a bionic-based super-hydrophobic integrated chip, an SERS (Surface Enhanced Raman Scattering) platform and application, the preparation method comprises the following steps: preparing laser-induced graphene on the surface of a polyimide film by adopting a laser engraving machine to obtain a super-hydrophobic chip with a rose petal effect; part of the surface of the laser-induced graphene is coated with an organic solvent, the super-hydrophobic chip with the lotus leaf effect is obtained, and the adhesion performance of a lotus leaf effect area is lower than that of a rose petal effect area; seamless assembly of the lotus leaf effect region and the rose petal effect region is realized by regulating and controlling the coating position and area of the organic solvent, so that the super-hydrophobic integrated chip with the lotus leaf effect-rose petal effect is formed. The preparation process is simple, the prepared chip is excellent in super-hydrophobic property, and ultra-low-concentration, ultra-high-sensitivity and high-speed detection of analytes can be realized through a built SERS (Surface Enhanced Raman Scattering) platform.

Description

technical field [0001] The invention relates to the field of analyte concentration detection, in particular to a preparation method of a bionic-based superhydrophobic integrated chip, a SERS platform and its application. Background technique [0002] Surface-enhanced Raman scattering (SERS) technology is widely used in many fields such as chemical industry analysis, environmental monitoring, biological analysis and medical detection due to its high sensitivity, low fluorescence background, and non-destructive to detection samples. In terms of single-molecule detection applications, SERS technology has ultra-high resolution and can detect molecules in ultra-low concentration solutions. [0003] Studies have shown that noble metal nanostructure substrates and scattered metal nanoparticles can provide a strong local electromagnetic field - hot spot (Hot Spot). When analyte molecules are adsorbed in a strong electromagnetic field, the Raman scattering signal of the molecule is s...

Claims

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Application Information

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IPC IPC(8): G01N21/65
CPCY02A90/10
Inventor 韩琳韩云蕊张宇韩应宽
Owner SHANDONG UNIV
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