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A method for electroless metal deposition based on lysozyme two-dimensional nano film

A two-dimensional nano-electroless deposition technology, applied in metal material coating process, liquid chemical plating, coating and other directions, can solve the problems of poor repeatability, low transparency, and cumbersome operation process of micro-contact printing, and achieve simplified patterns. The process of chemical transformation, simple operation, good adhesion effect

Active Publication Date: 2017-08-25
SHAANXI NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these methods have their own shortcomings. Microcontact printing has poor repeatability and is not conducive to large-area preparation. Inkjet printing requires special printing equipment and ink
At present, there are reports about the use of dopamine to polymerize on the surface of the substrate to treat the surface and then use photolithography to pattern the deposited metal, but the use of photoresist will bring cumbersome operations and is not conducive to environmental protection. Modified surfaces tend to be less transparent, which undoubtedly reduces the transparency of the material after the metal is deposited

Method used

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  • A method for electroless metal deposition based on lysozyme two-dimensional nano film
  • A method for electroless metal deposition based on lysozyme two-dimensional nano film
  • A method for electroless metal deposition based on lysozyme two-dimensional nano film

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Effect test

Embodiment 1

[0027] 1. Preparation of lysozyme two-dimensional nano film

[0028] Add 0.1433g of tris(2-carboxyethyl)phosphine into 10mL of 10mmol / L 4-hydroxyethylpiperazineethanesulfonic acid buffer solution with a pH value of 7.4 to prepare 50mmol / L tris(2-carboxyethyl)phosphine 4-Hydroxyethylpiperazineethanesulfonic acid buffer solution, then adjust its pH value to 6.0 with NaOH, and record it as solution 1; add 20mg of lysozyme to 10mL10mmol / L 4-Hydroxyethylpiperazineethanesulfonic acid with a pH value of 7.4 In the acid buffer solution, prepare 4-hydroxyethylpiperazineethanesulfonic acid buffer solution of 2 mg / mL lysozyme, and record it as solution 2; mix 150 μL solution 1 and 150 μL solution 2 evenly, and then immerse a 4 cm long wool into the obtained In the mixed solution, let it stand at room temperature for 30 minutes, take out the wool, rinse it with ultrapure water, and then vacuum-dry it to form a two-dimensional nano-film of lysozyme on the surface of the wool.

[0029] 2. ...

Embodiment 2

[0034] 1. Preparation of lysozyme two-dimensional nano film

[0035] Add 0.1433g of tris(2-carboxyethyl)phosphine hydrochloride into 10mL of 10mmol / L 4-hydroxyethylpiperazineethanesulfonic acid buffer solution with a pH value of 7.4 to prepare 50mmol / L tris(2-carboxyethyl)phosphine 4-hydroxyethylpiperazineethanesulfonic acid buffer solution, and then adjust its pH value to 6.0 with NaOH, which is recorded as solution 1; In the sulfonic acid buffer solution, prepare 4-hydroxyethylpiperazineethanesulfonic acid buffer solution of 2mg / mL lysozyme, and record it as solution 2; The sheet was covered on the surface of the obtained mixed solution, and allowed to stand at room temperature for 30 minutes. The silicon sheet was taken out, rinsed with ultrapure water, and then dried with nitrogen to form a two-dimensional nano-film of lysozyme on the surface of the silicon sheet.

[0036] 2. Adsorption catalyst

[0037] Cover a photomask on the silicon wafer with lysozyme two-dimensiona...

Embodiment 3

[0041] In embodiment 2, the used silicon chip is replaced with the PET flake of 1cm * 2cm, and other steps are identical with embodiment 2, and deposited on the PET surface patterning (see Figure 4 ).

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Abstract

The invention discloses a method for electroless metal deposition based on a two-dimensional nano-film of lysozyme. The method first forms a two-dimensional nano-film of lysozyme on the surface of a substrate through the phase transition of lysozyme, and then utilizes a two-dimensional nano-film of lysozyme The nano film adsorbs the catalyst, and then the substrate on which the surface adsorbs the catalyst is immersed in the metal electroless deposition solution to deposit metal on the surface of the substrate. The invention performs electroless metal deposition based on the two-dimensional nano-film of lysozyme, which not only expands the selectivity of the substrate, but also the two-dimensional nano-film of lysozyme itself is positively charged, and can directly adsorb the negatively charged palladium salt catalyst, without the need for the base material Any other complex polymerization and grafting reactions can be carried out on the surface of the material, which is simple and environmentally friendly. At the same time, the two-dimensional nano-film of lysozyme is more sensitive to ultraviolet light and electron beam, so the surface pattern can be realized after exposure to ultraviolet light and electron beam. simplifies the patterning process.

Description

technical field [0001] The invention belongs to the technical field of electroless deposition of metals, and in particular relates to a method for electroless deposition of metals based on a lysozyme two-dimensional nano film. Background technique [0002] Electroless deposition (ELD) is of great significance in metal thin film and pattern preparation, microelectronic circuit plate manufacturing and flat panel display technology, etc., especially selective electroless deposition technology has attracted extensive attention in recent years. Compared with traditional plasma vapor deposition (PCD), chemical vapor deposition (CVD), electroplating and other technologies to prepare metal thin films by electroless deposition technology, it has the advantages of no special equipment, simple process and low cost, and can be used in Non-conductive surfaces such as ceramics and polymer flexible substrates can even achieve uniform deposition on some complex three-dimensional structure s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C18/54
Inventor 杨鹏李倩王德辉哈媛
Owner SHAANXI NORMAL UNIV