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An apparatus and an application for fabricating a nanoparticle self-assembly structure

A nanoparticle self-assembly technology, applied in the field of nanomaterials, can solve the problem of inability to accurately control the self-assembly direction and position of nanoparticles, and achieve the effect of precise control

Pending Publication Date: 2019-01-18
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although the solvent evaporation method is easy to implement, the direct solvent evaporation on the substrate cannot accurately control the orientation and position of the self-assembly of nanoparticles.

Method used

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  • An apparatus and an application for fabricating a nanoparticle self-assembly structure
  • An apparatus and an application for fabricating a nanoparticle self-assembly structure
  • An apparatus and an application for fabricating a nanoparticle self-assembly structure

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Embodiment 1

[0042] Such as figure 1 , 2 As shown, the present invention provides a kind of device for making nanoparticle self-assembly structure, comprising:

[0043] A planar substrate 110; wherein, the planar substrate is: ordinary planar glass sheet, quartz planar glass, transparent conductive planar glass, coated planar glass or planar silicon material. Therefore, the substrate is not limited to the above planar substrate, and planar structures of any other materials are within the protection scope of the present application.

[0044] A flexible template 120; the bottom of the flexible template is attached to the upper surface of the planar substrate; and the bottom of the flexible template attached to the planar substrate is provided with a nanoparticle solution 130 that communicates with the outside world and is used to make the outside world Inflow microchannel 121 . Wherein, the microchannel at the bottom of the flexible template is obtained by soft etching. The bottom of the...

Embodiment 2

[0051] The present application also provides a method for making a nanoparticle self-assembly structure. Based on the device for making a nanoparticle self-assembly structure in Example 1, the present invention provides a method for making a nanoparticle self-assembly structure, including:

[0052] S401, drop the nanoparticle solution onto the end of the microchannel (wherein the shape and size of the microchannel can be changed as required), so that the nanoparticle solution is subjected to the capillary force of the microchannel of the flexible template Under the action of , it flows into the microchannel, and self-assembles in the microchannel to form a regular three-dimensional supercrystal structure.

[0053] S402, by controlling the temperature and humidity of the environment, to obtain a uniform assembly effect (to make the arrangement of the gold nanorods more regular, instead of generating random scattered structures).

[0054] S403, after a specified period of time, ...

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Abstract

The embodiment of the invention discloses a device and an application for fabricating a nanoparticle self-assembly structure. The device comprises a planar substrate and a flexible template. The bottom of the flexible template is adhered to and arranged on the upper surface of the planar base, and the bottom of the flexible template which is in contact with the glass substrate is provided with a microchannel which is communicated with the outside and is used for allowing the nanoparticle solution of the outside to flow in. From the above, the present application can achieve precise control ofthe self-assembly position of the nanoparticles, and is simple and easy to operate.

Description

technical field [0001] The invention relates to the field of nanomaterials, in particular to a device and application for making a nanoparticle self-assembly structure. Background technique [0002] Nanoparticles (such as gold nanorods) are very sensitive to the adsorption of the surrounding medium, and the substances adsorbed on their interfaces will cause changes in their surface plasmon resonance frequencies, which are specifically manifested as changes in optical signals such as light absorption and surface-enhanced Raman spectroscopy. Using nanoparticles as a sensing element to construct sensors can realize label-free and highly sensitive detection of molecules. At present, it has been possible to use nanoparticles to detect molecules without labeling, but this kind of detection is mostly carried out in a solution environment, and in a solution state, nanoparticles are easily affected by the concentration of external ions and cause aggregation, which cannot be widely us...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B81B3/00B81C1/00B82Y40/00
CPCB81B3/0064B81C1/00015B82Y40/00B81B2201/0292B81B2201/0278
Inventor 王艳艳王爽
Owner TIANJIN UNIV
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