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Green light induction controlled hydrophilic/hydrophobic intelligent surface material and preparation method and application thereof

A surface material and hydrophilic technology, applied in the field of photosensitive materials, can solve the problems of photosensitive molecular bleaching on the surface of materials, restricting materials, etc., and achieve the effect of expanding the potential of applications

Active Publication Date: 2019-11-05
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a hydrophilic / hydrophobic smart surface induced and controlled by green light in order to solve the problem that the use of ultraviolet light in the prior art limits the application of materials in the biological field and causes the bleaching of light-sensitive molecules on the surface of materials Materials and their preparation methods and applications

Method used

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  • Green light induction controlled hydrophilic/hydrophobic intelligent surface material and preparation method and application thereof
  • Green light induction controlled hydrophilic/hydrophobic intelligent surface material and preparation method and application thereof
  • Green light induction controlled hydrophilic/hydrophobic intelligent surface material and preparation method and application thereof

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Embodiment 1

[0038] A preferred embodiment of the present invention provides a method for preparing a hydrophilic / hydrophobic smart surface material induced and controlled by green light. The specific preparation steps are as follows:

[0039]Using N-methylpyrrolidone as the solvent and polycaprolactone with a concentration of 10wt% as the substrate, the nanofiber substrate was prepared by electrospinning. The electrospinning voltage was 15kV, the receiving plate distance was 16cm, and the injection speed was is 15mL / h; the dopamine is polymerized and coated on the surface of the nanofiber substrate, and a dopamine solution is first prepared, using tris buffer (tris buffer, pH=8.5) as a solvent, and the dopamine concentration is 5mg / mL, and then In turn, add copper sulfate pentahydrate at a concentration of 0.5 mg / mL and hydrogen peroxide at a concentration of 0.5 mg / mL to the dopamine solution at a mass ratio of 1:1. The mass ratio of dopamine to copper sulfate pentahydrate is 10:1. The c...

Embodiment 2

[0042] A preferred embodiment of the present invention provides a method for preparing a hydrophilic / hydrophobic smart surface material induced and controlled by green light. The specific preparation steps are as follows:

[0043] Using N-methylpyrrolidone as the solvent and polycaprolactone with a concentration of 12wt% as the substrate, the nanofiber substrate was prepared by electrospinning. The electrospinning voltage was 15kV, the receiving plate distance was 16cm, and the injection speed was is 15mL / h; the dopamine is polymerized and coated on the surface of the nanofiber substrate, and a dopamine solution is first prepared, using tris buffer (tris buffer, pH=8.5) as a solvent, and the dopamine concentration is 5mg / mL, and then In turn, add copper sulfate pentahydrate at a concentration of 0.5 mg / mL and hydrogen peroxide at a concentration of 0.5 mg / mL to the dopamine solution at a mass ratio of 1:1. The mass ratio of dopamine to copper sulfate pentahydrate is 10:1. The ...

Embodiment 3

[0046] A preferred embodiment of the present invention provides a method for preparing a hydrophilic / hydrophobic smart surface material induced and controlled by green light. The specific preparation steps are as follows:

[0047] Using N-methylpyrrolidone as the solvent and polycaprolactone with a concentration of 14wt% as the substrate, the nanofiber substrate was prepared by electrospinning. The electrospinning voltage was 15kV, the receiving plate distance was 16cm, and the injection speed was is 15mL / h; the dopamine is polymerized and coated on the surface of the nanofiber substrate, and a dopamine solution is first prepared, using tris buffer (tris buffer, pH=8.5) as a solvent, and the dopamine concentration is 5mg / mL, and then In turn, add copper sulfate pentahydrate at a concentration of 0.5 mg / mL and hydrogen peroxide at a concentration of 0.5 mg / mL to the dopamine solution at a mass ratio of 1:1. The mass ratio of dopamine to copper sulfate pentahydrate is 10:1. The ...

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Abstract

The invention discloses a green light induction controlled hydrophilic / hydrophobic intelligent surface material and a preparation method and application thereof. Due to the static electrospinning technology, polycaprolactone is adopted for preparing nano-fiber, and the material with the large specific surface area is prepared; then, under the effect of hydrogen peroxide / copper sulfate, dopamine ispolymerized to coat the surface of the nano-fiber; finally, due to a one-step chemical reaction, a donor-receptor Steinhaus adduct structure is prepared on the surface of the nano-fiber to form a green light sensitive intelligent surface. The intelligent surface material sensitive to light with the large wavelength is prepared, the hydrophilicity / hydrophobicity of the material surface can be controlled by the light with the large wavelength, the limit that a traditional intelligent surface material can only be controlled by ultraviolet light is released, and the application potential of the photosensitive intelligent surface in the biologic field is expanded.

Description

technical field [0001] The invention belongs to the technical field of light-sensitive materials, and in particular relates to a hydrophilic / hydrophobic intelligent surface material induced and controlled by green light, a preparation method and application thereof. Background technique [0002] As a non-contact external stimulus, light is widely used to control chemical processes and material properties. Light-sensitive materials are composed of light-sensitive molecules, whose key properties can be precisely, efficiently and cleanly controlled by external stimuli, and are an important part of smart materials. Light-sensitive molecules are the basis of light-sensitive materials. However, most of the photosensitive molecules that exist at present, such as azobenzene, spiropyran, diarylene, etc., only respond to ultraviolet light, which greatly limits the application range of photosensitive materials, especially in biological application field. The two disadvantages of ult...

Claims

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Application Information

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IPC IPC(8): D06M15/61D06M13/355D06M13/175D01D5/00D06M101/32
CPCD01D5/003D01D5/0061D01D5/0092D06M13/175D06M13/355D06M15/61D06M2101/32D06M2200/12
Inventor 王东升古良鸿董树敏费雪郑永豪
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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