Single-cell bio-based highly hydrophobic micron powder material and preparation method thereof

A single-cell, bio-based technology, applied in chemical instruments and methods, nanotechnology for materials and surface science, nanotechnology, etc., can solve the problems of complicated and cumbersome processes, low product strength, and limited application of highly hydrophobic materials. Achieve the effect of simple preparation steps and low surface energy

Inactive Publication Date: 2020-05-05
CHANGAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Most of these preparation methods are complex and tedious, high cost, and the controllability and uniformity of the surface microstructure of the obtained material are poor, the product strength is low, and the stability is not high. These problems and shortcomings greatly limit the industrialization of highly hydrophobic materials. application in

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  • Single-cell bio-based highly hydrophobic micron powder material and preparation method thereof
  • Single-cell bio-based highly hydrophobic micron powder material and preparation method thereof
  • Single-cell bio-based highly hydrophobic micron powder material and preparation method thereof

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preparation example Construction

[0031] The invention provides a simple and efficient preparation method of single-cell bio-based highly hydrophobic micro-powder material. After the single-cell biological cells are repeatedly washed with a dispersant, the single-cell biological cells are activated with an activator to obtain activated Unicellular biological cells; at the same time, Fe can be prepared by a certain method 3 o 4 The nanoparticles are cleaned and modified to realize the combination of the nanoscale particles and the lectin molecules, and obtain the nanoparticles after the biomodification of the lectin molecules. Then, the biomodified nanoparticles of lectin molecules are combined with activated unicellular biological cells, and the Fc 3 o 4 The immobilization of nanoparticles on the surface of single-cell organisms realizes the construction of rough micro-nano structures on the surface of single-cell organisms, and then uses dopamine to modify the surface of the product with octadecylamine to f...

Embodiment 1

[0036] Weigh 1 g of yeast and wash it with deionized water, put the washed yeast into 0.1 mol / L phosphate buffer solution, stir and mix, let stand for 5 hours, activate the yeast cells by absorbing water, and obtain activated yeast cells.

[0037] 5g Fe will be prepared 3 o 4 Put the nanoparticles into a mixture containing 26% ammonia water, 30% hydrogen peroxide and distilled water (V:V:V=1:1:10) for ultrasonic cleaning, centrifugation and drying to achieve to Fe 3 o 4 Surface cleaning of nanoparticles.

[0038] The cleaned Fe 3 o 4 Put the nanoparticles into a beaker with a mass concentration of 2.5% glutaraldehyde solution and stir, mix well, let stand at room temperature for 20h, and then wash with phosphate buffer, distilled water and ethanol to obtain aldehyde-modified Fe 3 o 4 Nanoparticles.

[0039] Add 10mg Con A to 10ml containing 0.1mol / L KCl, 0.1mmol / L CaCl 2 , 0.1mmol / L MnCl 2 , and pH=7 in 0.1 mol / L phosphate buffer solution, mixed, stirred and activate...

Embodiment 2

[0045] Weigh 1 g of yeast and wash it with deionized water, put the washed yeast into 0.1 mol / L phosphate buffer solution, stir and mix, let stand for 4 hours, activate the yeast cells by absorbing water, and obtain activated yeast cells.

[0046] 2g of Fe will be prepared 3 o 4 Put the nanoparticles into a mixture containing 26% ammonia water, 30% hydrogen peroxide and distilled water (V:V:V=1:1:10) for ultrasonic cleaning, centrifugation and drying to achieve to Fe 3 o 4 Surface cleaning of nanoparticles.

[0047] The cleaned Fe 3 o 4 Put the nanoparticles into a beaker with a glutaraldehyde solution with a mass concentration of 2.5%, stir, mix well, let stand at room temperature for 16h, and then wash with phosphate buffer, distilled water and ethanol to obtain aldehyde-modified Fe 3 o 4 Nanoparticles.

[0048] Add 10mg Con A to 10ml containing 0.1mol / L KCl, 0.1mmol / L CaCl 2 , 0.1mmol / L MnCl 2 , and pH=7 in 0.1 mol / L phosphate buffer solution, mixed, stirred and a...

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Abstract

The invention discloses an unicellular organism-based high-hydrophobicity micrometer powder material, and a preparation method thereof. According to the preparation method, unicellular organism cells are washed repeatedly, an activation agent is used for activation of the unicellular organism cells so as to obtain surface activated unicellular organism cells; at the same time, Fe3O4 nanoparticles are subjected to washing and modification so as to realize combination of the nanoparticles with agglutinin molecules, and obtain agglutinin molecule-modified nanoparticles; the agglutinin molecule-modified nanoparticles are combined with the surface-activated unicellular organism cells; construction of unicellular organism surface rough micro-nano structures is realized via immobilizing of the nanoparticles on the surface of the unicellular organism cells; and the surface of an obtained product is subjected to octadecylamine modification so as to reduce particle surface energy further, and obtain the unicellular organism-based high-hydrophobicity micrometer powder material.

Description

technical field [0001] The invention belongs to the field of highly hydrophobic materials, and relates to a single-cell bio-based highly hydrophobic micron powder material and a preparation method thereof. Background technique [0002] Highly hydrophobic materials have important properties such as waterproof, anti-fog, anti-oxidation, and self-cleaning. In nature, the surface of many organisms has excellent natural hydrophobicity and related properties, such as: the surface of cicada wings and the legs of water turtles have superhydrophobicity, the compound eyes of mosquitoes have anti-fog properties, and the surface of lotus leaves has self-cleaning properties. According to the principle of bionics, scientific researchers have constructed rough structures on the surface of material substrates by various means, and then modified them with low surface energy groups to prepare various highly hydrophobic and superhydrophobic materials. [0003] At present, the vast majority of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12N1/16C01G49/08C09K3/18B82Y30/00B82Y40/00
CPCB82Y30/00B82Y40/00C01G49/08C01P2004/03C09K3/18C12N1/16
Inventor 杨莉沈韵张黎王柯李旭许月明周星王浩宁李润泽汪子孺演嘉辉
Owner CHANGAN UNIV
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