Biological protein two-dimensional nano film prepared by lysozyme and preparation method thereof

A two-dimensional nanotechnology, protein technology, applied in nanotechnology and other directions, can solve the problems of difficult realization of macroscopic structure and complex synthesis route, and achieve the effect of small surface roughness, high transparency and simple preparation method
CN105153443BActive Publication Date: 2018-01-12SHAANXI NORMAL UNIV
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
SHAANXI NORMAL UNIV
Publication Date
2018-01-12

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Abstract

The invention discloses a method for preparing a two-dimensional nano-film of biological protein by using lysozyme. The method utilizes the phase transition reaction of lysozyme molecules and tris(2-carboxyethyl)phosphine hydrochloride to produce nanoparticles at the gas-liquid interface. A layer of biological protein two-dimensional nano film is formed by surface interface induced self-assembly, or the substrate is directly contacted with the surface of the solution during the preparation of the film, so that the nanoparticles generated by the phase transition of lysozyme are directly on the liquid-solid surface through surface interface induction Self-assembly forms a two-dimensional nano-film, that is, grows in situ on the surface of the substrate. The preparation method of the present invention is simple and environment-friendly, the thickness of the prepared biological protein two-dimensional nano-film is about 30-80nm, the surface roughness is small, the transparency is high, and it has good adhesion, and can be used for substrate surface Make modifications.
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Description

technical field

[0001] The invention belongs to the technical field of preparation of biological protein two-dimensional nano film, and in particular relates to a biological protein two-dimensional nano film prepared by using lysozyme and a preparation method thereof. Background technique

[0002] Among the various physiological functions in nature, the self-assembly of protein aggregates is particularly common. For example: amelogenin can self-assemble to form nanospheres, and these nanosphere systems assemble to form a ribbon structure. This self-assembled structure plays a key template role by controlling the growth of hydroxyapatite crystals to achieve Biomineralization of tooth enamel. Nowadays, protein two-dimensional nanofilms formed by self-assembly have attracted extensive attention from the scientific community. Especially during the phase transition, supramolecular aggregates are formed by the spontaneous aggregation of hydrophobic particles, thereby forming a t...

Claims

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