Japanese researchers develop a snout that solves the problem of 'breathing' while wearing it

The Corona virus epidemic has raised the public awareness of the importance of using masks for personal protection, but the problem has remained in the fact that materials with small pores are enough to keep viruses – which are usually about 100 Nm – that limit the airflow, but the users of users now have a solution to this Dilemma. In a study published in the magazine “Mateials AdvanaS”, researchers from the Institute of Industrial Sciences (IIS) at the University of Tokyo developed a candidate who can capture nano particles such as viruses without a large airflow, and this was achieved by the exact design of the pore structure in the filter. The candidate consists of nano particles consisting of a arranged network of porphyrins, which are flat -shaped loop particles with a central hole. Small holes in porphyrin molecules are designed with a suitable size that easily enables the passage of small gas molecules in the air, while the movement of the largest particles such as viruses is darkened, after which the nanotherapy is supported on a modified fiber containing pores of several hundred nanometers to form the filter. The lead author of the study, Kazwii Ishi, said that the construction of the Porphyrin -based Nano plates is made by facial reactions powered by the movement of interactive materials due to the gradual tension in the air and solvent interface, known as the “Marangon effect”, and the nanoscopic -Fsel. The team tested their filter using the standard procedure used to test the N95 maintenance. The results of the particle filtration test revealed that the candidate was actively kept by small particles of viruses. The candidate achieved the effectiveness of particle nomination by 96%, exceeding the requirements of the N95 CSSSSS of 95%. “The candidate of our porphyrin could collect nanoparts with a small diameter of 100 Nm. The most important thing is that the candidate also showed a slight decrease in the pressure difference in gas flow measurements. This indicates that he can hold small particles like viruses, with a little limiting of the airflow.”