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Structural color material and preparation method thereof

A technology of structural color and base material, which is applied in the field of materials, can solve the problems of low stability and strength, complex process, and difficulty in producing structural color materials of various colors, and achieve good stability and wide application prospects.

Pending Publication Date: 2022-07-12
SHAANXI NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the surface of existing structural color materials is usually not stable and strong, and the production cost is high, and the process is complicated. It is also difficult to produce structural color materials of various colors using the same process.

Method used

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  • Structural color material and preparation method thereof
  • Structural color material and preparation method thereof
  • Structural color material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Embodiments of the present invention provide a structural color material.

[0032] The structural color material is prepared in the following manner:

[0033] Add 0.15mg glutathione to 10mL ultrapure water to dissolve to obtain 50mM glutathione aqueous solution, and adjust the pH to 10 with 5mol / L sodium hydroxide aqueous solution; add 100mg lysozyme to 10mL ultrapure water , dissolved to obtain a lysozyme aqueous solution with a concentration of 10 mg / mL;

[0034] Mix equal volumes of glutathione aqueous solution and lysozyme aqueous solution to obtain a mixed solution;

[0035] The surface of the silicon wafer is contacted with the mixed solution and incubated for at least 2 hours to obtain a structural color material.

[0036] The substrates for preparing structural color films can be silicon wafers, iron wafers, titanium wafers, copper wafers, platinum wafers, steel wafers, and quartz, mica, glass, teeth, ZrO after sputtering platinum or silicon layers. 2 , polym...

Embodiment 2

[0038] A mixed solution was prepared in the same manner as in Example 1.

[0039] Nine silicon wafers of the same size were contacted with the mixture and incubated at room temperature.

[0040] A piece of structural color material was taken out every 12h, and a high-concentration lysozyme solution was added to the reaction system every 24h to make the lysozyme concentration return to the initial concentration.

[0041] After 108 h, the last piece of structural color material was taken out, and the thickness of the protein film attached to the surface of each piece of structural color material was measured.

[0042] The result is as figure 1 shown.

[0043] Depend on figure 1 It can be seen that the regression curve equation of time and protein film thickness in this example is y=97.9*x^0.625, and the goodness of fit of each point is R 2 =0.9953. It can be seen that the method provided in this example can precisely adjust the thickness of the protein film on the surface o...

Embodiment 3

[0045] According to the technical scheme in Example 1, a glutathione aqueous solution with a concentration of 50 mM and a pH of 10 was prepared; and according to the technical scheme in Example 1, the concentrations of 2 mg / mL and 5 mg were respectively prepared by changing the amount of lysozyme added. / mL, 10mg / mL, 15mg / mL, 20mg / mL of lysozyme in water.

[0046] The aqueous solution of lysozyme of each concentration was uniformly mixed with the aqueous solution of glutathione in equal volumes to prepare five kinds of mixed solutions with different concentrations of lysozyme.

[0047] Multiple silicon wafers with the same specifications were contacted with the respective mixtures, incubated at room temperature, and taken out after 6, 12, 24, 36, and 45 hours of incubation to measure the thickness of the protein film on the surface of each substrate. The results are shown in Table 1. shown.

[0048] Table 1 Variation of protein nanofilm thickness with lysozyme concentration ...

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Abstract

The invention relates to a structural color material and a preparation method thereof, and the preparation method sequentially comprises the following steps: (1) mixing a glutathione solution with the pH value of 7-12 with a protein solution containing disulfide bonds to prepare a mixed solution; and (2) at room temperature, contacting the surface of the base material with the mixed solution, and incubating to obtain the product. According to the method, the thickness of the protein film is accurately controlled, films with different thicknesses are loaded on a substrate with relatively high reflectivity by utilizing a film interference principle, so that rich structural colors are presented, and meanwhile, the structural color material prepared by the preparation method has a certain response to humidity. Structural color materials can be obtained on different base materials, the stability is good, patterning treatment can be conducted on the structural color materials through a template, and the structural color materials have wide application prospects in the aspects of surface modification, food packaging, structural color sensors and the like.

Description

technical field [0001] The invention relates to the field of materials, in particular to a structural color material and a preparation method thereof. Background technique: [0002] In the past few decades, the field of protein assembly has experienced unexpectedly rapid development. Researchers have used ingeniously designed strategies to assemble proteins into protein assemblies with precise packing patterns comparable to those in nature, and are developing new protein assemblies. Significant progress has also been made in strategies and different assembly structures. With the rapid development of protein assembly technology, many protein nanoassemblies with well-defined structures can be easily functionalized and begin to find applications in various fields such as bio-nanomaterials, biocatalysis, disease diagnosis and treatment, and vaccine research and development. However, it is still a serious challenge to develop controllable artificially regulated protein assemblie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D189/00
CPCC09D189/00
Inventor 杨鹏张千慧
Owner SHAANXI NORMAL UNIV
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