Misa kupararira kwemhepo kwekorona itsva! Masayendisiti anogadzira nanofilter kubata ingangoita zana muzana yekoronavirus aerosols

Vese World Health Organisation neUS Centers for Disease Control vanobvuma kuti aerosols ndiyo nzira yekutanga yekupararira kwehutachiona hweCOVID-19. Aerosols zvimedu zvidiki zvemvura kana zvimwe zvinhu zvinogona kuramba zvakaturikwa mumhepo kwenguva yakareba, zvidiki zvekupinda mukati mekufema.

Vanhu vanoburitsa aerosol pavanofema, kukosora, kutaura, kupopota kana kuimba. Aya maaerosols anogona zvakare kuve nehutachiona kana akabatwa neCCIDID-19. Kufemba huwandu hwakakwana hwekoronavirus aerosols kunogona kurwarisa munhu. Nekuda kuti vanhu vapfeke masiki, kuvandudza kufefetedza kwemukati uye mafirita emhepo, kudzikisira kuratidzwa kwevanhu uye kudzikisa huwandu hwese hwema aerosols munharaunda ndizvo zvekutanga kudzikamisa kupararira kweCOVID-19 aerosols.

Tsvagiridzo yehutachiona hutsva hunotapukira ine njodzi, uye haiwanzo kuwanikwa mumarabhoritari ane mazinga epamusoro ekuchengetedza zvipenyu. Zvidzidzo zvese kusvika parizvino pamasiki kana kusefa zvakanaka panguva yedenda zvakashandisa zvimwe zvinhu zvinofungidzirwa kutevedzera saizi uye maitiro eSARS-CoV-2 aerosols. Chidzidzo chitsva ichi chinonatsiridza pane izvo, kuyedza aerosolized saline mhinduro uye aerosols ine coronavirus kubva kumhuri imwechete sehutachiona hunokonzera COVID-19 asi hunongobata mbeva.

Yun Shen and George Washington University colleague Danmeng Shuai created a nanofiber filter that delivers a high voltage through a drop of polyvinylidene fluoride liquid to a spinning thread about 300 nanometers in diameter—about 167 times thinner than a human hair . This process created pores just a few micrometers in diameter on the nanofibers’ surface, helping them capture 99.9 percent of coronavirus aerosols.

Iyo nzira yekugadzira, inozivikanwa se electrospinning, inodhura-inoshanda uye inogona kushandiswa kuburitsa-nanofiber mafirita emidziyo yekudzivirira uye mafirita emhepo. Electrospinning inosiyawo electrostatic charge pane nanofibers, iyo inosimudzira kugona kwavo kubata aerosols, uye yakakwirira porosity inoita kuti zvive nyore kufema paunenge wakapfeka electrospun nanofiber sefa.

“Electrospinning technology can facilitate the design and manufacture of masks and air filters,” said Prof. Yun Shen. “Using electrospinning technology to develop new types of masks and air filters has good filtration performance, economic feasibility and scalability. Being able to meet the demand for masks and air filters in the field is very promising.”