Prof. Hadas Mamane, tus thawj coj ntawm Environmental Engineering Program ntawm Tel Aviv University' hais tias "Peb pom tias nws yooj yim heev los tua tus kabmob coronavirus." coj txoj kev tshawb fawb nrog Prof. Yoram Gerchman thiab Dr. Michal Mandelboim.
Nws hais tias UV-LED qhov muag teev xav tau tsawg dua ib nrab feeb los rhuav tshem ntau dua 99.9% ntawm tus mob coronaviruses.
Txoj kev tshawb no yog thawj zaug ntawm nws lub ntiaj teb. Ib tsab xov xwm hais txog nws tau luam tawm ua ntej lub hlis no hauv Phau Ntawv Xov Xwm ntawm Photochemistry thiab Photobiology B: Biology.
Yeluxalees Posthas tau sau txog Mamane ntau zaus. Cov neeg sawv cev no suav nrog lub koom haum Boris Mints 2020 Kev Tshawb Fawb Kev Sib Tham ntawm nws kev koom tes hauv kev tsim kho 30-meter&"phab ntsa ntsuab &"; ntawm lub tsev kawm ntawv, uas yog lub hom phiaj los tsim kom muaj kev nyab xeeb nyob thoob ntiaj teb rau kev pov tseg, lub zog thiab dej.Qhov phab ntsa tseem tau txhais los ua lub chaw kuaj ntshav nyob txhawm rau tshuaj xyuas kev siv cov dej greywater (cov dej ua kua tsim los ntawm cov dab dej, da dej, da dej, thiab tshuab ntxhua khaub ncaws) hauv kev nqus cov pa roj carbon dioxide, ntxiv rau cuam tshuam rau kev hloov pauv cua sov thiab tsim hluav taws xob hauv cov tsev qub uas muaj nyob hauv cov nroog loj. tsim cov tshuaj ethanol-thiab yog li cov tshuaj ntxuav tes-raws li cawv-los ntawm cov nroj tsuag pov tseg, xws li kev lis kev cai hauv nroog thiab kev ua liaj ua teb, cov quav thiab cov ntawv uas seem. Mamane.
UV-A muaj qhov ntev ntawm 315 nanometers (nm) txog 400 nm. UV-B, tseem hu ua lub teeb yoj nruab nrab, muaj lub nthwv dej ntawm 280-315 nm; UV-C muaj wavelength ntawm 200-280 nm.
UV-A tau tawm los ntawm lub hnub (thiab cov khoom siv zoo li lub txaj tanning) thiab tsis muaj zog dua li UV-B thiab C. qee kis, mob qog noj ntshav.
UV-B thiab C hluav taws xob yeej tsis mus txog tib neeg ib txwm vim cov duab no tau nqus los ntawm lub ntiaj teb txheej txheej ozone.
Cov kab mob ultraviolet no, uas yog Tel Aviv cov kws tshawb fawb tau tshuaj xyuas, tshwj xeeb tshaj yog siv tshuaj tua kab mob siv UV-LED qhov muag teev.
"Peb paub, piv txwv li, cov neeg ua haujlwm kho mob tsis muaj sijhawm los tua tus kheej, hais tias, khoos phis tawj keyboard thiab lwm qhov chaw hauv tsev kho mob - thiab qhov tshwm sim yog kis mob thiab cais tawm," Mamane hais. "Cov kab mob tua kab mob raws li qhov muag teev ntawm LED, txawm li cas los xij, tuaj yeem teeb tsa hauv qhov cua thiab cua txias, piv txwv li, thiab ua kom tsis huv cov pa nqus hauv thiab tom qab ntawd tso rau hauv chav."
Nws hais ntxiv tias," Peb tseem tab tom txhim kho, ua ke nrog kws tshawb fawb hauv North Western University cov txheej pob tshab uas tuaj yeem dipped lossis txau rau ntawm qhov chaw thiab tuaj yeem tua cov kab mob siv cov teeb pom kev zoo uas tsis txaus ntshai thiab siv txhua qhov chaw, muab lwm daim ntawv thov rau LEDs li niaj zaus."
Hauv nws pab pawg tshawb fawb, lawv tau tua tus kab mob siv tus nqi pheej yig dua thiab npaj tau ntau dua qhov muag teeb LED - 285 nm piv rau 265 nm qhov muag teev - uas siv lub zog me me thiab tsis muaj mercury zoo li niaj hnub teeb UV.
Nws hais tias raws li kev tshawb fawb txhim kho, kev lag luam yuav tuaj yeem hloov kho qhov tsim nyog thiab teeb tsa qhov muag teev rau hauv cov tshuab neeg hlau, lossis cua txias, lub tshuab nqus tsev thiab dej, thiab yog li tuaj yeem ua kom tua tau qhov chaw loj thiab qhov chaw zoo.
"Peb kev tshawb fawb muaj kev cuam tshuam rau kev lag luam thiab hauv zej zog," Mamane hais.
Nws hais ntxiv tias nws pab neeg tau ua haujlwm ntawm UV-LEDs tau ntev ua ntej tus kabmob coronavirus. Tab sis thaum COVID-19 tshwm sim, lawv tau sim saib seb lawv puas tuaj yeem hloov lawv lub dag zog los kho tib neeg tus kabmob coronavirus, kawm txog kev siv LEDs rau tua corona ntawm ntau zaus.
Nws hais tias 285 nm LED yog 15% mus rau 30% tsis kim thiab xav tau sijhawm me ntsis ntxiv thiaj li ua tau zoo.
Nws hais tias "Txhua yam uas tuaj yeem txo tus nqi tuaj yeem pab ua kom tiav," nws hais.
Nws hais ntxiv tias UV LEDs muaj qhov zoo dua vim tias lawv tuaj yeem qhib thiab tua tau sai.
Mamane ntseeg tias cov thev naus laus zis no yog yav tom ntej, ntxiv tias nws cia siab tias los ntawm 2025, nws yuav raug nqi txaus los ua lub ntsiab lus tseem ceeb.
"UV LEDs muaj lub neej yav tom ntej loj," nws hais ntxiv. "Tau kawg, zoo li ib txwm muaj, thaum nws los txog rau hluav taws xob ultraviolet, nws yog ib qho tseem ceeb kom ua kom pom tseeb rau tib neeg tias nws yog qhov txaus ntshai sim siv txoj hauv kev no los tua cov nplaim hauv tsev. Koj yuav tsum paub tsim cov txheej txheem no thiab yuav ua haujlwm nrog lawv li cas kom koj tsis txhob cuam tshuam ncaj qha rau lub teeb. "
