Issue 23/2021 - Antibacterial and antiviral nanofibers successfully developed

Antibacterial and antiviral nanofibers were successfully developed

On November 22, Qingdao University announced that researchers from the Institute of Biomedical Materials and Engineering of the university have developed a new type of polytetrahydropyrimidine antibacterial and antiviral polymer, which can be prepared into nanofiber "textile" to the outer layer of the mask, which has a strong killing effect on pathogenic bacteria and has a good interception effect
on various particles in the air.

Guo Shuaibing, the main leader of the research team, said that the newly developed antibacterial and antiviral nanofiber is prepared
by mixing the new polytetrahydropyrimidine antibacterial and antiviral polymer designed and synthesized by the research team with polyacrylonitrile, a common material for making masks, through an electrospinning process.

A large number of experimental results of the research team show that the fiber not only shows high efficiency and long-lasting bacteriostatic effect (greater than 99.
999%) against common bacteria such as Escherichia coli and Staphylococcus aureus, but also shows excellent killing performance
against some viruses.
Moreover, this fiber has good thermal stability and biocompatibility, that is, the drug does not volatilize after heating, will not cause harm to the human body, and has good
safety.
In addition, the nanofiber mesh is very small, and the filtering effect of 0.
24 micron particles is as high as 97%, which improves the blocking effect
of masks on particles.