Segment thickness coded bar code nanorod and preparation method thereof

A nanorod and barcode technology, applied in the field of nano-coded materials, can solve the problems of limited coding capacity and achieve the effects of increased coding capacity, uneven thickness, and simple preparation methods

Active Publication Date: 2020-04-07
JIAXING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the current construction of barcode 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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  • Segment thickness coded bar code nanorod and preparation method thereof
  • Segment thickness coded bar code nanorod and preparation method thereof
  • Segment thickness coded bar code nanorod and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The preparation method of barcode nanorods with segment thickness coding, in the process of constructing multi-segment nanorods, when depositing a layer of polymer film, the substrate is controlled to incline at a certain angle relative to the horizontal plane, and the angle of inclination of the substrate is not all 0°;

[0028] Multi-segment nanorods are constructed by colloidal crystal etching method, and the schematic diagram of the construction is shown in figure 1 As shown, the specific process is as follows: firstly, the solution of polymer b 3 and the solution of polymer a 2 are alternately deposited on the surface of the same substrate 4 (the substrate is a silicon substrate) to form a film by spin coating method, and then assembled on the surface of the six-layer polymer film Silica microspheres 1, then the closely packed silica microspheres are etched into non-close packed arrays by plasma etching technology, and finally the etched silica microspheres (average...

Embodiment 2

[0031] The preparation method of barcode nanorods with segment thickness coding, in the process of constructing multi-segment nanorods, when depositing a layer of polymer film, the substrate is controlled to incline at a certain angle relative to the horizontal plane, and the angle of inclination of the substrate is not all 0°;

[0032] Multi-segment nanorods are constructed by colloidal crystal etching method. The construction process is as follows: 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. , control the substrate to tilt at a certain angle relative to the horizontal plane, then assemble silica microspheres (average diameter of 500nm) on the surface of the three-layer polymer film, and then etch the closely packed silica microspheres using plasma etching technology into a non-tightly packed array, and finally use the etched silica microspheres as a m...

Embodiment 3

[0035] In the preparation method of barcode nanorods with segmental thickness coding, in the process of constructing multi-segmented nanorods, when depositing a layer of polymer film, the substrate is controlled to incline at a certain angle relative to the horizontal plane, and the angle of inclination of the substrate is not all 0°;

[0036]The multi-segment nanorods are constructed by colloidal crystal etching method. The construction process is as follows: firstly, different polymer solutions are sequentially deposited on the surface of the same substrate (the substrate is a silica substrate) to form films by spin coating, and each layer of polymer deposited When the film is formed, the substrate is tilted at a certain angle relative to the horizontal plane, and then silica microspheres are assembled on the surface of the three-layer polymer film, and then the closely packed silica microspheres are etched into a non-close packing by plasma etching technology. Finally, use t...

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Abstract

The invention relates to a segment thickness coded bar code nanorod and a preparation method thereof. The preparation method includes: in the process of constructing a multi-segment nanorod, when eachlayer of polymer film is deposited, controlling the inclination angle of a substrate relative to a horizontal plane to a certain degree and not 0 completely; the prepared segment thickness coded barcode nanorod is a multi-segment nanorod which comprises two or more segments and has at least one segment with non-uniform in thickness, and the non-uniformity means gradual change along the directionperpendicular to the length direction of the multi-segment nanorod. The preparation method of the segment thickness coded bar code nanorod is simple and practicable and low in cost, and can achieve batch preparation. According to the segment thickness coded bar code nanorod, at least one segment is uneven in thickness, and the encoding capacity of the bar code nanorod is greatly increased by introducing morphological factors into a nanorod array.

Description

technical field [0001] The invention belongs to the technical field of nano-coded materials, and relates to a barcode nano-rod with section thickness coding 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 nano-coded material is invisible to the naked eye, making it possible to code valuable commodities or important materials. The wide application of nano-coded materials requires high coding capacity, low consumption, high particle yield and suitable and accurate detection system. Facing these requirements, many technologies for designing coded materials have developed rapidly. Among them, nanorods have received extensive attention due to their ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J7/06C08J7/04C08J7/00G06K19/06C08L33/14C08L25/06C08L29/04C08L65/00C08L27/18C08L27/16C08L33/02C08L33/12C08L39/08C08L79/02C08L5/08C08L5/04C08L89/00C08L77/04C08L69/00C08L1/28
CPCC08J7/00C08J7/06C08J2301/28C08J2305/04C08J2305/08C08J2325/06C08J2327/16C08J2327/18C08J2329/04C08J2333/02C08J2333/12C08J2333/14C08J2339/08C08J2365/00C08J2369/00C08J2377/04C08J2379/02C08J2389/00C08J2401/28C08J2405/04C08J2405/08C08J2425/06C08J2427/16C08J2427/18C08J2429/04C08J2433/02C08J2433/12C08J2433/14C08J2439/08C08J2465/00C08J2469/00C08J2477/04C08J2479/02C08J2489/00G06K19/06037G06K19/06084G06K19/06093
Inventor 陈洪旭李海东程凤梅陈超
Owner JIAXING UNIV
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