Mliri wa covid-19 wadziwitsa anthu za kupha tizilombo toyambitsa matenda ku UV, zomwe zikuwonekeranso pakuchulukirachulukira kwa zinthu zopangidwa ndi LED pamsika. Kuwala kwa Ultraviolet kumatha kugwiritsidwa ntchito kupha mpweya, madzi ndi malo azinthu zosiyanasiyana. Bungwe la International ultraviolet Association (iuva) limati lingathandize kuchepetsa chiopsezo chofalitsa kachilombo ka covid-19. Kuunikira kwa Ultraviolet kugawidwa m'magulu angapo (Chithunzi 1). UV-A kapena kuwala kwakuda kumachokera ku 315 mpaka 400 nm ndipo amagwiritsidwa ntchito ngati kuyesa kukhazikika kwa kuwala, kuchiritsa, phototherapy, zothamangitsira tizilombo ndi mabedi otenthetsera khungu. Kuwonekera kwa UV-A kwa nthawi yayitali kungayambitse kutenthedwa kwa khungu ndi kukalamba msanga. Chithunzi 1 kuwala kwa ultraviolet kumagawidwa m'magulu angapo.

UV-B mumtundu wa wavelength wa 280 ~ 315 nm ndiyowopsa. Chifukwa kuwonetseredwa kwa nthawi yayitali kwa UV-B kumagwirizana ndi zochitika za khansa yapakhungu, kukalamba kwa khungu ndi ng'ala, ntchito zamalonda zimaphatikizapo kukonza ndi phototherapy mu mankhwala. Gulu la UV limeneli silimakhudzana ndi khansa yapakhungu chifukwa ma photon samalowa kwambiri pakhungu, koma malinga ndi kafukufuku wa iuva, kukhudzana ndi UV-C kungayambitse khungu monga kutentha kwambiri komanso kuwononga retina ya maso. Ma photon a UV-C amathanso kuyanjana ndi ma RNA ndi mamolekyu a DNA mu tizilombo toyambitsa matenda kuti tiwononge bwino. Nyali za Mercury zomwe zimatha kutulutsa UV-C zakhala zikugwiritsidwa ntchito popha tizilombo kwazaka zambiri. Komabe, monga mitundu ina yowunikira, asintha kupita kuzinthu pogwiritsa ntchito magwero a kuwala kwa LED.

Akatswiri azaumoyo amakhulupirira kuti njira yayikulu yopatsira covid-19 ndikukhudzana ndi madontho opumira mumlengalenga kapena pamwamba pa zinthu. Pakali pano zotsalira za LED zochokera ndi mankhwala ophera tizilombo amagwiritsidwa ntchito kwambiri popha tizilombo. Ndikukula kwa misika yazidazi, njira zotsogola zophera tizilombo toyambitsa matenda zitha kuyambitsidwa. Zogulitsa zomwe zilipo zili ndi ubwino wokhala oyenera mitundu ina ya kuunikira kwa LED: kukula kochepa, kusakanikirana kosavuta ndi zipangizo zina monga masensa okhalapo, ndi zofunikira zochepa zogwiritsira ntchito mphamvu. Komabe, mankhwalawa nthawi zambiri amakhala okwera mtengo, ndipo padzakhala zoletsa zambiri pamitundu yambiri yamtunda yomwe imatha kukonzedwa munthawi yeniyeni.

Cholinga choyambirira cha kusintha kwa ma LED chinali kuchepetsa kwakukulu kwa moyo wa LED poyerekeza ndi nyali za mercury vapor. Komabe, nkhawayi idachokera pakuwunika momwe kagwiritsidwira ntchito kachitidwe kachitidwe kakale monga machitidwe oyeretsera osindikizidwa, ndipo samaganizira kuti mankhwala ophera mabakiteriya amatha (ndipo nthawi zina ayenera) kugwiritsidwa ntchito pafupipafupi. Monga ma LED onse, ma LED a UV-C amatha kuzungulira pafupifupi kosatha popanda kuwononga kutulutsa kwa kuwala; Kuphatikiza apo, nyali ya mercury vapor imafuna mphindi zingapo zotenthetsera nthawi kuti ifike pakutulutsa kowala kwambiri, ndipo zida za LED zimatha pafupifupi kufika pamlingo wathunthu nthawi yomweyo. Kuphatikiza apo, mosiyana ndi nyali za mercury vapor, zotsogola zotsogozedwa zimatha kupereka kutalika kofunikira kuti pakhale zotsatira zabwino popanda kuwononga mphamvu mu mawonekedwe a mafunde osavomerezeka.

Nthawi zambiri, vuto lina lazinthu zowunikira zowunikira ndikutsimikizira chitetezo chazinthu ndi zofunikira pakuchita. Malinga ndi a Carl Bloomfield, wamkulu wapadziko lonse lapansi wazinthu zamabizinesi mubizinesi yamagetsi ya EUROLAB, kuwunika kwawo kwazinthu kumangoyang'ana magawo owala, kutsimikizira mawu oletsa kuletsa, kutsata chitetezo, ndi EMC yoyenera. Mabungwe otukula Miyezo ayamba kuyesa miyezo, koma miyezo palibe, chifukwa chake EUROLAB imadalira makampani ake ndi ukadaulo wake kupanga ma protocol owunikira pazinthu zinazake ndi zomwe akufuna. Kutsatira chitetezo kumatha kukhala kovuta kwambiri chifukwa zimatengera zomwe zimagwiritsidwa ntchito ndi zomwe akufuna, kuphatikiza moto, kugwedezeka kwamagetsi, chiwopsezo cha makina, zoopsa zamaso, kutulutsa kwa UV ndi mpweya wa ozoni.

Kuphatikiza pa mankhwala ophera tizilombo toyambitsa matenda a UV, pali mndandanda wazinthu zatsopano zotchedwa "visible light disinfection (VLD)". Zogulitsazi zimagwiritsa ntchito mafunde a indigo (buluu wofiirira) omwe amapangidwa ndi ma LED, omwe ndi otetezeka kuti thupi la munthu liwonekere kwa nthawi yayitali, kuti athetseretu mabakiteriya omwe amakhudzidwa ndi mafundewa. kuwunikira kokhazikika, ndipo nthawi zina amagwiritsidwa ntchito limodzi ndi magwero a kuwala koyera pakuwunikira wamba. Ndizofunikira kudziwa kuti kupha tizilombo toyambitsa matenda kwa VLD sikothandiza kwa mabakiteriya onse ndipo sikuthandiza ma virus.