Umfanekiso webhena: Ukukhanya kwe-ultraviolet kwisibane sekrypton chloride excimer siqhutywa ziimolekyuli ezihamba phakathi kwamazwe ahlukeneyo amandla. (Umthombo: Linden Research Group)
Uphando olutsha oluvela kwiDyunivesithi yaseColorado Boulder lufumanise ukuba ukukhanya okuthile kwe-ultraviolet (UV) akusebenzi nje kuphela ngokubulala intsholongwane ebangela i-COVID-19, kodwa zikwakhuselekile ukusetyenziswa kwiindawo zikawonke-wonke.
Uphononongo, olupapashwe kule nyanga kwijenali ye-Applied kunye ne-Environmental Microbiology, luhlalutyo lokuqala olubanzi lweziphumo zamaza ahlukeneyo okukhanya kwe-ultraviolet kwi-SARS-CoV-2 kunye nezinye iintsholongwane zokuphefumla, kubandakanya neyokuphela kwayo ekhuselekileyo kwizinto eziphilayo kunye. ayifuni amaza oqhagamshelwano. Khusela.
Ababhali babiza ezi zinto zifunyanisiweyo “njengomguquli womdlalo” wokusetyenziswa kokukhanya kwe-UV okunokukhokelela kwiinkqubo ezifikelelekayo, ezikhuselekileyo nezisebenzayo zokunciphisa ukusasazeka kweentsholongwane kwiindawo ezixineneyo zikawonke-wonke ezifana nezikhululo zeenqwelo moya kunye neendawo zekonsathi.
Phantse kuzo zonke iintsholongwane esizifundileyo, le ntsholongwane yenye yezona zinto zilula ukuzibulala ngokukhanya kwe-ultraviolet,” utshilo umbhali ophezulu uCarl Linden, unjingalwazi wezobunjineli bemekobume. “Ifuna iidosi eziphantsi kakhulu. Oku kubonisa ukuba itekhnoloji ye-UV inokuba sisisombululo esihle kakhulu sokukhusela iindawo zoluntu. ”
Imitha ye-Ultraviolet ikhutshwa ngokwendalo lilanga, kwaye uninzi lweendlela ziyingozi kwizinto eziphilayo kunye ne-microorganisms efana neentsholongwane. Oku kukhanya kunokufunxwa yigenome yento ephilayo, kuqhinwe amaqhina kuyo kuze kuthintele ukuba ingaphinde ivelise ezinye. Nangona kunjalo, la maza ayingozi avela eLangeni ahluzwa ngaphandle kwe-ozone layer ngaphambi kokuba afikelele kumhlaba womhlaba.
Ezinye iimveliso eziqhelekileyo, ezifana nezibane ze-fluorescent, zisebenzisa imisebe ye-ergonomic ye-UV, kodwa ibe ne-coating yangaphakathi ye-phosphorus emhlophe ekhusela kwimitha ye-UV.
"Xa sisusa i-coating, sinokukhupha i-wavelengths enokuthi ibe yingozi kwesikhumba kunye namehlo ethu, kodwa inokubulala i-pathogens," kusho uLinden.
Izibhedlele sele zisebenzisa itekhnoloji ye-UV yokubulala iintsholongwane kwiindawo ezingahlali bantu kwaye zisebenzisa iirobhothi ukusebenzisa ukukhanya kwe-UV phakathi kwamagumbi otyando kunye namagumbi ezigulane.
Iigajethi ezininzi kwimarike namhlanje zinokusebenzisa ukukhanya kwe-UV ukucoca yonke into ukusuka kwiiselfowuni ukuya kwiibhotile zamanzi. Kodwa i-FDA kunye ne-EPA zisaphuhlisa imigaqo yokhuseleko. ULinden ulumkisa ngokuchasene nokusebenzisa nasiphi na isixhobo sobuqu okanye “sokubulala iintsholongwane” esibeka abantu esichengeni sokukhanya kwe-ultraviolet.
Uthe iziphumo ezitsha zahlukile kuba zibonisa umhlaba ophakathi phakathi kokukhanya kwe-ultraviolet, ekhuselekileyo ebantwini kwaye iyingozi kwiintsholongwane, ngakumbi intsholongwane ebangela i-COVID-19.
Kolu phononongo, uLinden kunye neqela lakhe bathelekisa ubude obuhlukeneyo bokukhanya kwe-UV besebenzisa iindlela ezisemgangathweni eziphuhliswe kwishishini le-UV.
“Sicinga ukuba masidibane senze iinkcazo ezicacileyo malunga nesixa sokuvezwa kwe-UV efunekayo ukubulala i-SARS-CoV-2,” utshilo uLinden. "Sifuna ukuqiniseka ukuba usebenzisa isibane se-UV ukulwa nesifo, uya kuphumelela". Idosi yokukhusela impilo yabantu kunye nolusu lomntu kunye nokubulala ezi ntsholongwane. ”
Amathuba okwenza lo msebenzi anqabile njengoko ukusebenza ne-SARS-CoV-2 kufuna imigangatho engqongqo yokhuseleko. Ke uLinden kunye noBen Ma, ugxa wasemva kobugqirha kwiqela likaLinden, badibane nogqirha wentsholongwane uCharles Gerba weDyunivesithi yaseArizona kwilebhu enikwe ilayisenisi yokufunda intsholongwane kunye nokwahluka kwayo.
Abaphandi bafumanise ukuba ngelixa iintsholongwane zichaphazeleka kakhulu kukukhanya kwe-ultraviolet, i-wavelength ethile ekude ye-ultraviolet (222 nanometers) isebenza ngakumbi. Le wavelength yenziwa zizibane zekrypton chloride excimer, ezinikwa amandla ziimolekyuli ezihamba phakathi kwamazwe ahlukeneyo amandla kwaye zinamandla aphezulu kakhulu. Ngaloo ndlela, iyakwazi ukwenza umonakalo omkhulu kwiiprotheyini zentsholongwane kunye ne-nucleic acid kunezinye izixhobo ze-UV-C kwaye ivalwe lulwaleko olungaphandle lolusu lomntu kunye namehlo, okuthetha ukuba ayinayo nayiphi na imiphumo eyingozi yempilo. iyayibulala intsholongwane.
Imitha ye-UV yobude obahlukeneyo (elinganiswa apha kwiinanometers) inokungena kwiileya ezahlukeneyo zolusu. Okukhona la maza amaza engena esikhumbeni, kokukhona abangela umonakalo. (Umthombo womfanekiso: "I-UV ekude: Imeko yangoku yoLwazi" epapashwe yi-International Ultraviolet Radiation Association ngo-2021)
Ukususela ekuqaleni kwenkulungwane yama-20, kuye kwasetyenziswa ngokubanzi iintlobo ezahlukeneyo zemitha yeUV ukuze kubulawe iintsholongwane emanzini, emoyeni nangaphezulu. Kwangoo-1940, yayisetyenziselwa ukunciphisa ukusasazeka kwesifo sephepha kwizibhedlele nakwiiklasi ngokukhanyisa isilingi ukuze kubulawe iintsholongwane emoyeni ojikeleza kwigumbi. Namhlanje ayisetyenziswa ezibhedlele kuphela, kodwa nakwezinye izindlu zangasese zikawonke-wonke nakwiinqwelomoya xa kungekho mntu.
Kwiphepha elimhlophe elisanda kupapashwa yi-International Ultraviolet Society, i-Far-UV Radiation: Imeko yangoku yoLwazi (kunye nophando olutsha), uLinden kunye nababhali-bambisene nabo baphikisa ukuba le mitha ye-UV ekhuselekileyo ingasetyenziselwa kunye nokuphucula umoya, ukunxiba. iimaski kunye nogonyo ngamanyathelo aphambili okunciphisa iziphumo zendyikityha yangoku neyexesha elizayo.
Iinkqubo zeLinden Imagine zinokuvulwa kwaye zicinywe kwiindawo ezivaliweyo ukuze zicoceke rhoqo umoya kunye nomgangatho, okanye zenze imiqobo engabonakaliyo esisigxina phakathi kwefakhalthi nabafundi, iindwendwe kunye nabasebenzi bezolondolozo, kunye nabantu abakwizithuba apho kungagcinwa khona umgama woluntu.
Ukubulala iintsholongwane kwi-UV kunokukhuphisana neziphumo ezilungileyo zokuphuculwa kokungena komoya wangaphakathi, njengoko kunokubonelela ngokhuseleko olufanayo njengokwandisa inani lokutshintsha komoya ngeyure kwigumbi. Ukufakela izibane ze-UV nako kubiza kancinci kunokuphucula inkqubo yakho yonke ye-HVAC.
“Kukho ithuba apha lokonga imali namandla ngelixa ukhusela impilo yoluntu. Inika umdla ngokwenene,” utshilo uLinden.
Abanye ababhali kolu papasho baquka: Ben Ma, University of Colorado, Boulder; UPatricia Gandy noCharles Gerba, kwiYunivesithi yaseArizona; kunye noMark Sobsey, iYunivesithi yaseNorth Carolina, iChapel Hill).
IFakhalthi kunye nabasebenzi i-imeyile egcina uVimba wee-imeyile kuVimba we-imeyile ka-Alumni we-imeyile uVimba omtsha we-imeyile UVimba we-imeyile weSikolo samaBanga aPhakamileyo uVimba we-imeyile kuVimba we-imeyile we-COVID-19 uVimba osisiShwankathelo
IYunivesithi yaseColorado eBoulder © IYunivesithi yaseColorado Regents Bucala • Ezomthetho kunye neempawu zorhwebo • Imephu yekhampasi
Ixesha lokuposa: Nov-03-2023