Anti-microbial nano protein fiber and preparing method thereof

Abstract

A novel spinning technology is used for spinning zein and fibroin, the spinning technology is simple, an electric field does not need to be used, and the diameter of the prepared nano fiber is much smaller than the diameter of electrostatic spinning fiber and can reach 200-350 nm. Since a silane coupling agent is adopted for grafting of nano titania to a protein chain, aggregation of inorganic particles is avoided, and dispersibility of the inorganic particles is better improved; meanwhile, zinc sulfide and titanium oxide serve as anti-microbial materials, when the zinc sulfide and the titanium oxide are jointly used, the long anti-microbial effect is achieved, the anti-microbial performance can reach 99% or above, good anti-microbial performance is still achieved after washing is conducted 40 times, and the anti-microbial rate can still reach 90% or above.

Description

technical field [0001] The invention belongs to the field of nanofiber materials, in particular to an antibacterial nanoprotein fiber and a preparation method thereof. Background technique [0002] Zein is a plant protein extracted from corn flour or corn dregs with good biocompatibility, degradability, hydrophobicity and antioxidant activity. Nano-scale Zein fibers have potential applications in the field of biomedicine value. Silk protein materials have good biocompatibility and have good application prospects in the field of biomedical materials. In the prior art, the electrospinning method is commonly used in the preparation of nanofibers, but a large electric field needs to be constructed, which requires high equipment, which limits the application of this method, and in the prior art, the above two proteins do not exist. Method for preparing nanofibers by blending. [0003] In addition, antibacterial nanofibers are widely used in the medical and health field. At pre...

AI Technical Summary

Problems solved by technology

In the prior art, the electrospinning method is commonly used in the preparation of nanofibers, but a large electric field needs to be constructed, which requires high equipment, which limits the application of this method, and in the prior art, the above two proteins do not exist. Method for preparing nanofibers by blending

[0003] In addition, antibacterial nanofibers are widely used in the medical and health field. At present, the preparation of antibacterial nanofibers is mainly carried out in the following ways: (1) Antibacterial finishing of fibers, such as using dipping method or padding method, attaching a layer antibacterial finishing agent, but this method has the problem of poor durability; (2) adding the antibacterial agent to the polymer for spinning, there is the problem that the antibacterial agent is easy to agglomerate and poor in dispersibility, which affects the mechanical properties of the fiber, and obtains Larger fiber diameter

Images