Cov khoom siv tooj liab tshiab muaj cov kab mob bactericidal thiab tuaj yeem tua 97% ntawm Staphylococcus aureus hauv plaub teev
Cov khoom siv tooj liab tshiab tuaj yeem pab tiv thaiv kev hem thawj ntawm superbugs los ntawm kev tua cov kab mob sai dua thiab ua tau zoo dua li tus qauv tooj liab - ntau dua 100 npaug ntau dua.
tooj liab tau nthuav dav 2,000 zaug nyob rau hauv lub tshuab ntsuas hluav taws xob scanning, nthuav tawm nws cov qauv zoo li micro-comb.
Cov khoom siv tooj liab tshiab yog qhov tshwm sim los ntawm kev sib koom tes tshawb fawb ntawm RMIT University thiab Australia lub koom haum tshawb fawb hauv tebchaws CSIRO, cov txiaj ntsig uas nyuam qhuav luam tawm hauv Biomaterials.
Tooj liab tau ntev tau siv los tiv thaiv cov kab mob sib txawv, suav nrog cov kab mob Staphylococcus aureus, vim tias cov ions tso tawm los ntawm cov hlau nto yog tshuaj lom rau cov kab mob.
Tab sis raws li RMIT University Tus Kws Tshaj Lij Tshaj Lij Qian Ma piav qhia, cov txheej txheem qeeb thaum siv tus qauv tooj liab, thiab cov kws tshawb fawb thoob ntiaj teb tab tom ua haujlwm kom nrawm.
Tus qauv tooj liab yuav tua kwv yees li 97% ntawm Staphylococcus aureus hauv plaub teev.
Qhov tsis txaus ntseeg, thaum Staphylococcus aureus tau muab tso rau ntawm peb cov tooj liab tsim tshwj xeeb, nws rhuav tshem ntau dua 99.99% ntawm cov hlwb hauv ob feeb xwb. Tsis tsuas yog nws ua tau zoo dua, nws yog 120 lub sij hawm sai dua.
Cov txiaj ntsig no tau ua tiav yam tsis muaj kev pab ntawm cov tshuaj. Kev tsim tooj liab tau ua pov thawj nws tus kheej zoo heev rau cov khoom siv no.
Pab neeg no ntseeg tias cov khoom siv tshiab, ib zaug tsim kho ntxiv, tuaj yeem muaj ntau yam kev siv, suav nrog kev siv tshuaj tua kab mob hauv lub qhov rooj thiab lwm qhov chaw kov hauv tsev kawm ntawv, tsev kho mob, tsev thiab kev thauj mus los rau pej xeem, nrog rau cov tshuaj tua kab mob ua pa lossis lim hauv cov tshuab ua pa, thiab daim npog qhov ncauj.
Tam sim no pab neeg no tab tom tshawb xyuas qhov ua tau zoo ntawm kev txhim kho tooj liab tiv thaiv SARS-COV-2, suav nrog kev ntsuas 3D cov qauv luam tawm.
Lwm cov kev tshawb fawb tau pom tias tooj liab yuav muaj txiaj ntsig zoo tiv thaiv kab mob, ua rau US Environmental Protection Agency kom pom zoo cov tooj liab rau kev siv tshuaj tua kab mob ua ntej xyoo no.
Kev tshawb fawb tus kws sau ntawv Dr. Jackson Leigh-Smith tau hais tias tooj liab cov qauv ntxeem tau tshwj xeeb yog qhov tseem ceeb rau nws cov txiaj ntsig zoo li cov kab mob tua kab mob ceev.
Cov hlau yog tsim los siv cov txheej txheem tshwj xeeb tooj liab pwm casting uas npaj cov tooj liab thiab manganese atoms rau hauv ib qho qauv tshwj xeeb.
Tom qab ntawd cov manganese atoms raug tshem tawm los ntawm cov hlau uas siv cov txheej txheem tshuaj pheej yig thiab scalable hu ua "dealloying," tawm hauv qhov chaw ntawm cov tooj liab ntshiab uas muaj cov kab noj me me micron- thiab nanoscale kab noj hniav.
tooj liab yog tsim los ntawm comb-zoo li micropores nrog me me nanopores nyob rau hauv txhua tus hniav; nws muaj ib tug loj active nto cheeb tsam. Tus qauv kuj ua rau saum npoo superhydrophilic, los yog hydrophilic, yog li dej muaj nyob rau ntawm nws raws li ib tug ca zaj duab xis es tsis yog cov tee dej.
Cov nyhuv hydrophilic txhais tau hais tias cov kab mob hlwb muaj teeb meem tswj lawv cov duab thaum ncab los ntawm nanostructures nto, thaum tus qauv ntxeem tau tso cai sai dua ntawm tooj liab ions.
Cov kev sib xyaw ua ke no tsis yog tsuas yog ua rau cov kab mob ntawm cov kab mob degradation, ua rau lawv muaj kev cuam tshuam rau cov tshuaj lom tooj liab ions, tab sis kuj txhawb nqa cov tooj liab ions los ntawm cov kab mob. Nws yog qhov kev sib xyaw ua ke ntawm cov teebmeem uas ua kom nrawm nrawm ntawm kev tshem tawm cov kab mob.
Cov kws tshawb fawb thoob plaws ntiaj teb tab tom nrhiav los tsim cov ntaub ntawv kho mob tshiab thiab cov cuab yeej siv los pab txo qhov nce ntawm cov tshuaj tua kab mob-resistant superbugs los ntawm kev txo qhov xav tau tshuaj tua kab mob. Cov tshuaj tiv thaiv kab mob tau nce ntxiv, thiab tsis muaj cov tshuaj tua kab mob tshiab hauv khw, tsim cov khoom siv tshuaj tua kab mob tuaj yeem ua lub luag haujlwm tseem ceeb hauv kev pab daws qhov teeb meem no.
Cov khoom siv tooj liab tshiab no muaj cov kev xaiv pheej yig thiab pheej yig hauv kev tawm tsam superbugs thiab tsuas yog ib qho piv txwv ntawm yuav ua li cas CSIRO pab daws qhov kev pheej hmoo loj ntawm cov tshuaj tua kab mob.
Qhov kev tshawb fawb no tau pib los ntawm RMIT-CSIRO PhD Program thiab tom qab ntawd tau koom tes los ntawm CASS Foundation, Melbourne, Australia. Cov txheej txheem tshiab no yog tam sim no patented hauv Tebchaws Meskas, Tuam Tshoj thiab Australia.
