A multi-segment barcode nanorod and its preparation method

A nano-rod and barcode technology, applied in the field of nano-coding materials, can solve problems such as limiting coding capacity, and achieve the effects of increasing coding capacity, low cost, and large coding capacity

Active Publication Date: 2021-08-17
JIAXING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current construction of barcoded nanorods mainly relies on the alumina template method, which can only deposit specific metals, which greatly limits its coding capacity.

Method used

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  • A multi-segment barcode nanorod and its preparation method
  • A multi-segment barcode nanorod and its preparation method
  • A multi-segment barcode nanorod and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Multi-segment barcode nanorods, the preparation process of which is:

[0032] (1) The colloidal crystal etching method is used to construct multi-segment nanorod arrays. The construction flow chart is as follows figure 1 As shown, the details are as follows: firstly, different polymer solutions are sequentially deposited to form films on the surface of the same substrate (the substrate is a silicon substrate) by spin coating, and then silicon dioxide microspheres are assembled on the surface of the five-layer polymer film, and then the compact The stacked silica microspheres were etched into a non-close packed array by plasma etching technology, and finally the etched silica microspheres were used as a mask to etch the underlying five-layer polymer film to produce multi-segment nanometers. rod array; wherein, the average diameter of silica microspheres is 800nm, and different polymer solutions are: polystyrene (solvent is toluene), protonated poly(4-vinylpyridine) (solv...

Embodiment 2

[0037] Multi-segment barcode nanorods, the preparation process of which is:

[0038] (1) Colloidal crystal etching method was used to construct multi-segment nanorod arrays: firstly, different polymer solutions were sequentially deposited on the surface of the same substrate (the substrate was a silicon substrate) to form films by the drop coating method, and then deposited on the surface of the three-layer polymer film Assemble polystyrene microspheres, and finally use polystyrene microspheres as a mask to etch the lower three-layer polymer film to make multi-segment nanorod arrays; wherein, the average diameter of polystyrene microspheres is 300nm, and different polymers The solution is as follows: polyacrylic acid solution (solvent is ethanol), polystyrene (solvent is toluene) and polymethacrylic acid N,N-dimethylaminoethyl ester solution (solvent is chloroform) for each layer of polymer film deposited , the control base is tilted at a certain angle relative to the horizont...

Embodiment 3

[0043] Multi-segment barcode nanorods, the preparation process of which is:

[0044] (1) Colloidal crystal etching method is used to construct multi-segment nanorod arrays: firstly, different polymer solutions are sequentially deposited on the surface of the same substrate (the substrate is a silicon substrate) to form films by spin coating, and then deposited on the surface of the three-layer polymer film Assemble polystyrene microspheres, and finally use polystyrene microspheres as a mask to etch the underlying three-layer polymer film to make multi-segment nanorod arrays; wherein, the average diameter of polystyrene microspheres is 1 μm, and different polymers The product solution is followed by: thiol cross-linked polyamino acid solution (solvent is water), polymethacrylate N,N-dimethylaminoethyl ester solution (solvent is chloroform) and photoresist solution (product model is AZ4620 ); each time a polymer film is deposited, the substrate is controlled to incline at a cert...

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Abstract

The invention relates to a multi-segment barcode nanorod and a preparation method thereof. The preparation method is as follows: sequentially immerse a multi-segment nanorod with a segment number s≥3 and wherein n segments have A on the surface, and sequentially immerse m kinds of nanoparticles with B on the surface. In the solution, n≥2, 2≤m≤n, A and B can form an adsorption force. By controlling the types of A and B, m kinds of nanoparticles can be combined with different segments through the adsorption force to make multi-segment barcode nanorods ; The prepared multi-segment barcode nanorods are mainly composed of multi-segment nano-rods and nanoparticles adsorbed on it by adsorption force. The multi-segment nano-rods include more than three segments, and the types of nanoparticles are more than two, different types The nanoparticles are located on different segments of the multi-segmented nanorods. The preparation method of the multi-segment barcode nano-rod of the present invention is simple, easy to implement, low in cost, and can be prepared in batches; the prepared multi-segment barcode nano-rod has a lot of coding information and a large coding capacity.

Description

technical field [0001] The invention belongs to the technical field of nano-coded materials, and relates to a multi-segment barcode nanorod and a preparation method thereof. Background technique [0002] Due to their large amount of pattern-distinguishing information, nano-encoded materials have important applications from product tracking to biological detection, and thus have attracted widespread attention. Unlike the black and white product identification codes that are visible to the naked eye in supermarkets, the nanocoded material is invisible to the naked eye, making it possible to code valuable commodities or important materials. The wide application of nano-coding materials requires high coding capacity, low consumption, high particle yield and suitable and accurate detection system. Facing these requirements, many technologies for designing coding materials have developed rapidly. Among them, nanorods have received extensive attention due to their advantages of lo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J7/06C08L25/06C08L39/06C08L79/02C08L33/02C08L33/14C08L77/02C08L77/04C08L5/08C08L29/10C08L83/04C08K9/10C08K9/00C08K3/08C08K3/30C08K3/36G06K19/06
CPCC08J7/06C08J2305/08C08J2325/06C08J2329/10C08J2333/02C08J2333/14C08J2339/06C08J2377/02C08J2377/04C08J2379/02C08J2383/04C08K3/36C08K9/00C08K9/04C08K9/10C08K2003/0806C08K2003/0831C08K2003/3027C08K2201/011G06K19/06037G06K19/06084G06K19/06093
Inventor 陈洪旭李海东程凤梅
Owner JIAXING UNIV
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