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Biomimetic material as well as preparation method and application thereof

A biomimetic material and reaction technology, used in analytical materials, material inspection products, biological testing, etc., can solve problems such as performance that is difficult to meet application requirements, and achieve a wide range of uses, good thermal stability and toughness, and good bioaffinity. and the effect of conductivity

Active Publication Date: 2018-09-28
CHINA UNIV OF PETROLEUM (BEIJING)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although there are gecko setae biomimetic materials, these biomimetic materials are generally isotropic materials synthesized by photolithography, and their performance is difficult to meet the application requirements

Method used

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  • Biomimetic material as well as preparation method and application thereof
  • Biomimetic material as well as preparation method and application thereof
  • Biomimetic material as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0069] This embodiment provides a microarray and a preparation method thereof, the preparation method comprising the following steps:

[0070] Add 1.5g of curing agent (dimethylsiloxane) and 3mL of chloroauric acid solution (6% mass concentration) to 8g of polydimethylsiloxane (PDMS), and treat it ultrasonically for 15 minutes. For the reaction schematic diagram, please refer to figure 1 ;

[0071] Subsequently, the biomimetic material doped with nano-gold was poured on a silicon engraved template, dried in an oven at 60°C for 8 hours, and dried at 30°C for 2 days to obtain the microarray, which has a substrate, and on the substrate It has units uniformly arranged in an array, and the material of the unit is a biomimetic material doped with nano-gold; in the biomimetic material doped with nano-gold obtained in this embodiment, nano-gold is embedded in the interior and surface of the biomimetic material;

[0072] In this embodiment, silicon engraved templates with different as...

Embodiment 2

[0074] This embodiment provides a microarray and a preparation method thereof, the preparation method comprising the following steps:

[0075] Add 1.0g of curing agent (dimethylsiloxane) and 3mL of chloroauric acid solution (mass concentration is 4%) to 8g of polydimethylsiloxane (PDMS), ultrasonic treatment for 15min; The biomimetic material of nano-gold is poured on the silicon engraved template (cylindrical template), dried in an oven at 60°C for 8 hours, and dried at 30°C for 2 days to obtain the microarray, which has a substrate, and on the substrate It has units uniformly arranged in an array, and the material of the unit is a biomimetic material doped with nano-gold; in the biomimetic material doped with nano-gold obtained in this embodiment, nano-gold is embedded in the interior and surface of the biomimetic material;

[0076] In this embodiment, a cylindrical template is used to prepare a microarray with an aspect ratio of 2:1 unit (the unit is a columnar structure, a...

Embodiment 3

[0078] This embodiment provides a microarray and a preparation method thereof, the preparation method comprising the following steps:

[0079] Add 2.0g of curing agent (dimethylsiloxane) and 10mL of chloroauric acid solution (6% mass concentration) to 8g of polydimethylsiloxane (PDMS), and ultrasonicate for 15 minutes;

[0080]Subsequently, the obtained biomimetic material doped with nano-gold is poured on a silicon engraved template (semi-cylindrical template), dried in an oven at 60°C for 8 hours, and dried at 30°C for 2 days to obtain the microarray, which has a substrate , and there are units uniformly arranged in an array on the substrate, and the material of the unit is a biomimetic material doped with gold nanoparticles; in the biomimetic material doped with gold nanoparticles obtained in this embodiment, gold nanoparticles are embedded in the bionic the interior and surface of the material;

[0081] In this embodiment, a microarray with an aspect ratio of 2:1 unit (th...

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Abstract

The invention provides a biomimetic material as well as a preparation method and application thereof. The biomimetic material is prepared by the following method with the steps that high-molecular polymers are sufficiently mixed with excessive reductive curing agents; then, a noble metal salt water solution is added, so that noble metal salts and the excessive reductive curing agents react to obtain nanometer form noble metal; then, drying curing is performed to obtain the biomimetic material. The biomimetic material has various good properties, such as high viscosity, repeated use performanceand high conductivity, and can be applied to various technical fields such as the technical fields of microfluidics.

Description

technical field [0001] The invention relates to a bionic material, a preparation method and application thereof. Background technique [0002] The prior art shows that gecko feet have strong adhesion and can be debonded quickly. This is mainly due to the bristle structure of gecko feet. These bristle structures make gecko feet not only have the above-mentioned properties, but also repeatedly adhere and detach. After sticking, the adhesion will not weaken. In addition, the bristles also have a self-cleaning effect on pollutants such as microparticles. Specifically, as the biomimetic surface comes into contact with the substrate, the microparticles stuck to the biomimetic surface will fall off. This performance is mainly achieved by the columnar structure of the material; The shedding rate of the material without the columnar structure is about 20-30%, and the shedding rate of the columnar structure is 40-50%. Although there are gecko setae biomimetic materials, these biomim...

Claims

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Application Information

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IPC IPC(8): C08L83/04C08K3/08G01N33/535G01N33/543G01N33/68
CPCC08K3/08C08K2003/0806C08K2201/001C08K2201/011C08L2201/04C08L2201/08G01N33/535G01N33/54346G01N33/68C08L83/04
Inventor 徐泉李明李维军杨晨张壮壮
Owner CHINA UNIV OF PETROLEUM (BEIJING)
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