Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Zein nano fiber porous film and preparation method

A nanofiber, zein technology, applied in medical science, prosthesis, etc., can solve the problems of expensive solvent and harmful environment, and achieve the effect of good biocompatibility, good permeability, and good clinical repair effect.

Inactive Publication Date: 2006-04-26
SOUTHEAST UNIV
View PDF0 Cites 20 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Since general solvents cannot dissolve proteins, formic acid or fluorine-containing solvents are usually used as solvents to prepare protein nanofiber membrane materials by electrospinning. The obtained fibers are very fine, and the solvents cause protein molecules to degrade, or the solvents are expensive and harmful to the environment.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Zein nano fiber porous film and preparation method
  • Zein nano fiber porous film and preparation method
  • Zein nano fiber porous film and preparation method

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0041] The preparation method of zein nanofiber porous membrane is to dissolve zein in a solvent to obtain an electrospinning solution, or dissolve additives in the above solution to obtain an electrospinning mixture, add it to a storage tank, and connect it to a or multiple injection heads, the injection head is connected to a DC high-voltage electric field, the voltage is positive or negative 3 kV-120 kV, the receiving device is grounded, and electrospinning is performed to obtain ribbon-shaped zein nanofibers, and the ribbon-shaped nanofibers are randomly stacked A zein nanofiber porous membrane is obtained, the transverse dimension of the nanofiber is 20 nanometers to 10 micrometers, and the pore size of the porous membrane is 100 nanometers to 100 micrometers. Alternatively, the obtained zein nanofiber porous membrane is soaked in a crosslinking agent solution, dried to obtain a crosslinked zein nanofiber porous membrane, and then soaked in an additive solution. The cross...

Embodiment 1

[0046] Dissolve 5 grams of zein in a mixed solvent of 10 ml of ethanol and water, the volume ratio of ethanol and water is 70:30, and make a 50% (w / v) polymer solution, then add it to the storage tank, and pass the syringe pump Connect the catheter to the nozzle, connect the nozzle to a high-voltage positive electric field, control the distance between the nozzle and the receiver at about 10cm, the solution flow rate is 6ml / h, and the voltage is 15kV, and electrospinning is performed to obtain nanofiber membrane materials. Electron microscope observation (see attached figure 1 ), the nanofiber is a ribbon structure, and the transverse dimension of the fiber is between 100 nanometers and 4 microns.

Embodiment 2

[0048] Dissolve 3 grams of zein in a mixed solvent of 10 ml of ethanol and water, the volume ratio of ethanol and water is 90:10, and make a 30% (w / v) polymer solution, then add it to the storage tank, and use the syringe pump Connect the catheter to the nozzle, connect the nozzle to a high-voltage positive electric field, control the distance between the nozzle and the receiver at about 10cm, the solution flow rate is 6ml / h, and the voltage is 10kV. Electrospinning is performed to obtain ribbon-shaped nanofibers, nano The fibers are randomly packed into a zein nanofiber film.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Horizontal sizeaaaaaaaaaa
Hole sizeaaaaaaaaaa
Horizontal sizeaaaaaaaaaa
Login to View More

Abstract

The nanometer fiber porous membrane of corn protein is a functional fiber material, comprising: superfine fiber which can adsorb the natural high polymer corn protein or additive, the nanometer fiber of corn protein is ribbon-like fiber, the transverse size of the nanometer fiber is 20 nm- 10 um, the nanometer fiber of corn protein accumulates irregularly to form the nanometer fiber porous membrane, the pore size of the porous membrane is 100 nm - 100 um. The method for preparing the material which can adsorb the superfine fiber membrane with corn protein is: adding the corn protein to the mixed solvent of ethanol and water and getting the electrically weaved mixture, and then weaving electrically to get the material.

Description

technical field [0001] The invention relates to a zein nanofiber porous membrane and a preparation method thereof, belonging to the technical field of functional fiber membrane materials and their preparation. Background technique [0002] Tissue engineering scaffolds are key materials for cell and tissue culture, and proteins or protein-containing blends are commonly used scaffold materials, such as collagen, gelatin, silk fibroin, etc. [0003] Skin repair materials usually include membrane materials, mesh materials, and hydrogels. Membrane material has poor air permeability, which often leads to subcutaneous tissue accumulation and prolongs the tissue healing period; mesh material has good air permeability, allows cells to grow in, and has high strength. Due to the large pore size, it has no barrier effect on bacteria. Ordinary mesh materials and tissue It is difficult to separate, which brings pain to patients; hydrogel is a kind of skin repair material that has been us...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): A61L27/22A61L27/60
Inventor 李新松姚琛浦跃朴李云晖宋唐英范凯红
Owner SOUTHEAST UNIV
Features
  • Generate Ideas
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com