A kind of biosensor of graphene/copper particle hybrid structure and preparation method

A biosensor, hybrid structure technology, applied in instruments, scientific instruments, measuring devices, etc., can solve the problems of difficult detection of mixed biomolecules, cumbersome preparation process, low sensitivity, etc., achieve high chemical adsorption and physical enhancement mechanism, reduce process Process, the effect of high crystal quality

Active Publication Date: 2018-05-04
SHANDONG NORMAL UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the current biosensors used in SERS have the disadvantages of low sensitivity, cumbersome preparation process, high cost, and difficulty in detecting mixed biomolecules.

Method used

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  • A kind of biosensor of graphene/copper particle hybrid structure and preparation method
  • A kind of biosensor of graphene/copper particle hybrid structure and preparation method
  • A kind of biosensor of graphene/copper particle hybrid structure and preparation method

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Experimental program
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Embodiment 1

[0072] The preparation method of the biosensor of graphene / copper nanoparticle, such as Figure 4 shown.

[0073] 1. Use scissors to cut a 5cm×15cm blank glass fiber paper, and cut a certain quality of copper sheet.

[0074] 2. Turn on the evaporating and splashing instrument, put a certain mass of copper into the evaporating boat, then put the glass fiber into the evaporating instrument, turn off the evaporating and splashing instrument, and check whether the airtightness is good.

[0075] 3. Turn on the working switch of the instrument, turn on the mechanical pump, bypass valve, and molecular pump in turn, and vacuum the evaporation instrument to 3×10 -3 Torr.

[0076] 4. After vacuuming, turn on the evaporation button, slowly increase the evaporation current to 135A, continue evaporation for one minute, and then turn off the evaporation button. After waiting for ten minutes, turn off the suction pump, open the evaporation apparatus and take out the glass fiber material. ...

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Abstract

The invention discloses a biosensor of a graphene / copper particle mixing structure and a preparation method thereof. According to the biosensor, a layered structure formed by mixing two-dimensional graphene and copper nanoparticles is attached to the upper surface of glass fiber paper. The preparation method comprises the following steps: coating a copper film on the glass fiber paper by adopting a vacuum coating method, depositing the produced graphene on the copper film by adopting chemical vapor deposition, and treating the copper film into a copper nanoparticle layer, so that the copper film forms the layered structure formed by mixing the two-dimensional graphene and copper nanoparticles.

Description

technical field [0001] The invention belongs to the technical field of new materials, and relates to a biosensor capable of separating and mixing biomolecules and a preparation method thereof, in particular to a separable biomolecule with a glass fiber-based two-dimensional graphene / copper nanoparticle hybrid structure biosensor and its preparation method. Background technique [0002] For today's biosensors, high sensitivity, high stability, and high efficiency are crucial. The highly sensitive in situ SERS technology can detect environmental and agricultural product pollution and the canceration caused by it in real time and quickly, which plays an important role in pollution control and medical diagnosis and treatment. At present, the progress of related research is relatively slow, mainly because the preparation of high-sensitivity biosensor materials is relatively difficult. [0003] Molecular separation can realize the separation of molecules under mixed multimolecul...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N30/92G01N30/94B82Y40/00
CPCB82Y40/00G01N30/92G01N30/94
Inventor 杨诚刘子函李天明张萌潘萧萧徐媛媛满宝元
Owner SHANDONG NORMAL UNIV
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