Tsis ntev los no, pab neeg tshawb fawb ntawm lub koom haum ntawm biomedical cov ntaub ntawv thiab engineering ntawm Qingdao tsev kawm ntawv tsim thiab tsim ib tug tshiab polytetrahydropyrimidine antibacterial thiab antiviral polymer (PTHP). Los ntawm cov txheej txheem electrospinning, nws tau tov nrog polyacrylonitrile (ib qho khoom siv ua lub ntsej muag) los npaj nanofibers nrog lub zog tensile zoo. Qhov kev ua tiav no tau luam tawm nyob rau hauv Phau Tsom Faj ntawm cov khoom siv phom sij tsis ntev los no.
Nrog rau qhov tshwm sim ntawm COVID-19, lub qhov ncauj qhov ntswg thiab lwm yam khoom tiv thaiv tau dhau los ua qhov tsim nyog ntawm tib neeg' lub neej niaj hnub. Feem ntau ntawm cov qhov ncauj qhov ntswg siv nyob rau hauv lub neej niaj hnub cia siab rau electrostatic adsorption los cuam tshuam cov kab mob, nrog kev cuam tshuam tsis zoo, thiab siv lub ntsej muag yuav tsum tau kho tshwj xeeb vim lawv yog" npog nrog" kab mob. Peb puas tuaj yeem tig" cuam tshuam" rau hauv"inhibition" thiab" tua"?
Cov tshuaj tua kab mob thiab tshuaj tua kab mob nanofibers tshiab tsim los ntawm pab pawg tshawb fawb tuaj yeem yog" woven" mus rau hauv ib txheej nanofiber thiab npog rau txheej txheej ntawm lub npog ntsej muag, kom lub npog ntsej muag muaj" tus kheej tu" cov nyhuv inhibiting cov kab mob thiab muaj kev tiv thaiv zoo dua li lub npog ntsej muag uas twb muaj lawm.
Tus thawj coj hauv pab pawg Guo shuaibing tau qhia tias ntau qhov kev sim tau pom tias cov nanofibers tsis tsuas yog pom muaj txiaj ntsig zoo thiab kav ntev inhibition (> 99.999%) ntawm cov kab mob xws li Escherichia coli thiab Staphylococcus aureus, tab sis kuj pom tias muaj kev tua zoo heev. ntawm qee tus kab mob. Ntxiv mus, cov fiber ntau muaj thermal stability zoo thiab biocompatibility, uas yog, tom qab cua sov, cov tshuaj tsis yog-volatile, yuav tsis ua mob rau tib neeg lub cev, thiab muaj kev ruaj ntseg zoo. Tsis tas li ntawd, cov nanofiber mesh yog me me, thiab cov nyhuv pom ntawm 0.24 micron hais yog siab li 97%, uas zoo heev txhim kho cov nyhuv cuam tshuam ntawm lub ntsej muag ntawm cov khoom.
Nws yog to taub hais tias raws li ib tug pathogen tua txheej, no nanofiber yuav siv tau tsis tau tsuas yog nyob rau hauv lub qhov ncauj qhov ntswg, tab sis kuj nyob rau hauv lwm yam kev kho mob textiles. Cov txiaj ntsig kev tshawb fawb cuam tshuam tau thov rau lub teb chaws invention patents.