Ukuthuthukiswa Kwe-UV Leds Ngaphansi Komqedazwe

Izifo ezihlobene nezempilo nezibangelwa amanzi zibiza umhlaba ngezigidigidi zamaRandi ngonyaka kanye nezimpilo eziyizinkulungwane minyaka yonke. Isinyathelo esisodwa esibalulekile sokuvimbela ukuvala inzalo, okungafezwa kusetshenziswa izindlela ezihlukahlukene, kuhlanganise nemisebe yokukhanya ye-ultraviolet (UV). Njengoba izinqubo ezifanele zokuvala inzalo zingamisa ukusakazeka kwezifo ezithathelwanayo, le mfuneko isiphuthuma kakhulu ngenxa yobhubhane lomhlaba wonke lwe-coronavirus.

Uma kuqhathaniswa nemithombo yokukhanya ye-semiconductor, imithombo yamanje njengama-mercury bulb inkulu, iyingozi, futhi inezinketho ezimbalwa zohlelo lokusebenza.

Yini Ingabe i-UV LEDs ?

Ama-UV-LED ama-LED akhiqiza imisebe ye-UV enobude obungamaza obungama-400 nm noma ngaphansi. Ahlukaniswe abe ama-LED ajulile e-ultraviolet (DUV-LEDs), anobude beza begagasi obungaba ngu-200-3 2 0 nm, kanye ne-ultraviolet light-emitting diodes (NUV-LEDs), anomthamo wamaza okukhipha cishe 3 2 0-400 nm.

Ama-UV-LED athembisa abantu abazongenela izicelo eziningi, okuhlanganisa ukushintshwa kwezibani ze-UV, imithombo yokukhanya ekhanyayo ye-fluorescence yezibonisi nokukhanyisa, imithombo yokukhanya emihle yezibonakhulu kanye nemishini yokuchayeka,
imithombo yokukhanya yokuvusa amakhemikhali 4 esetshenziswa ku-biotechnology, imithi, kanye nokwelapha inhlaka, imithombo yokukhanya evusa amadlingozi ye-spectroscopy esetshenziswa ekuhlonzeni amanothi emali, ama-DNA chips, nokuqapha indawo ezungezile, nemithombo yokukhanya yenhlanzeko yokubulala amagciwane nokuvala inzalo.

Ukudalwa kwe-Uv Leds

Ngisho nakulolu bhubhane oluqhubekayo, ama-fomite okubulala amagciwane kuwumkhuba obalulekile wezempilo womphakathi ekumiseni ukusakazeka kwezifo eziningi ezithathelwanayo. Akungabazeki ukuthi kunentshisekelo ekudaleni ubuchwepheshe obuzovumela ukubulawa kwamagciwane okujwayelekile, okuphezulu, ikakhulukazi ezindaweni ezivakashelwa kakhulu zomphakathi, uma kubhekwa ulwazi lwakamuva lweqhaza elisondelene kanye nokudlala kwabantu abaningi endlini ekudluliselweni kwegciwane.

Ngaphandle kokusebenza kwawo ngempumelelo, amakhemikhali asebenzayo kwizibulala-magciwane zendabuko zamakhemikhali ezindaweni zomtholampilo nezaselabhorethri abeka ubungozi besimo sezulu, impilo yomphakathi kanye nengqalasizinda eyenza ukusabalalisa kwawo kube nzima. Ukwengeza, ukusebenza kahle kwezibulala-magciwane ngamakhemikhali kungahluka kuye ngokuthi umsebenzisi nokuthi uzilandela kanjani ngokucophelela izinqubo zokuhlanza eziphindaphindekayo. Njengenye indlela, imisebe ye-ultraviolet (UV) iye yasetshenziswa kabanzi ukuze yenze amagciwane amaningi angasebenzi, kuhlanganise namagciwane. Ukukhanya kwe-Ultraviolet kungenziwa ngokuzenzakalelayo ukukhiqiza umthamo ophindaphindwayo wokubulala amagciwane.

Ukwethulwa kwe Uv ehola i-diode inikeza izinga elifanayo mpela lokususa ukungcola njengezibani zemercury zendabuko, kodwa ngezinzuzo ezimbalwa, okuhlanganisa ubulula be-retrofit emithonjeni yokukhanya engaphezulu evamile ehlukahlukene, enamandla okubulala amagciwane athuthukisiwe.

Ukusebenza kwe-UV ekuhlanzeni kuboniswa indlela yayo eqondile yokusebenza. Ngenkathi izisekelo ze-thymine ezingomakhelwane (noma izisekelo ze-uracil esimweni se-RNA) zihlupheka ngenxa ye-dimerization, ephazamisa ukwakheka kokulandelana kwe-nucleotide futhi idale "izithiyo zomgwaqo" ekuphindaphindeni kwe-genome, izisekelo ze-nucleotide eziseduze ku-DNA ne-RNA zimunca ama-UV photon ngendlela ehlukile.

Abacwaningi babonise ukusebenza kwe-antiviral ye-a Imodeli ye-uv ngokwenza amagciwane amabili angasebenzi: i-coronavirus yomuntu yesizini 229E (hCoV-229E) kanye nohlobo 1 lwe-immunodeficiency virus (HIV-1). Abacwaningi babonisa ukuncipha okukhulu kokuphindaphindeka kwegciwane phakathi nemizuzwana ngemva kokuchayeka kwe-UV-LED ngokulingisa izimo zemvelo ezivamile zokusakazeka kwamagciwane (isb., ukuthimula, ukukhwehlela, amaconsi egazi) besebenzisa izindlela zokusabalalisa amaconsi.

Ucwaningo lwethu lunikela emgudwini wolwazi ngokusebenzisa ama-UV-LED ukuze kuhlanzeke izindawo zomphakathi zokuxhumana kakhulu. Ama-UV-LED amelela ungqimba olwengeziwe, olusebenza kahle kakhulu lokuzivikela ekusakazekeni kwe-pathogen ngenxa yokuthi awabizi futhi alula ukukufaka kuhlu lwezinto ezikhona zokukhanya, ikakhulukazi phakathi nobhadane oluqhubekayo lwezifo zokuphefumula.

Izidingo zama-UV-LEDs

Ama-LED ayisishiyagalolunye angu-275 nm ku-3 3 array kanye nama-LED angamashumi amabili angu-380 nm endaweni engu-4 5 ahlanganisa amasethi amabili ama-UV-LED anikeziwe. Ibanga phakathi kwama-LED nesampula eveziwe lalicishe libe ngu-5 cm, futhi ukuphuma kokukhanya kwe-UV kusuka kumalungu afanayo ngakunye kwakusukela ku-0.4 kuya ku-0.6 mW/cm2.

Ubude besikhathi obuphakeme kakhulu bemisebe kwaba amasekhondi angu-30, futhi izinhlu ezihlanganisiwe zinikeze umthamo ophelele kumasampula emisebe asukela ku-8 mJ/cm2 ukuya ku-20 mJ/cm2. Yonke indawo ekhanyisiwe yedivayisi ibicishe ibe ngu-10 cm ngo-20 cm, noma u-200 cm2, inkulu kakhulu kunesampula eshisiwe, futhi ithole umthamo ophelele we-aquifer ongu-1.6 J kuya ku-4 J.

Imiphumela Ocwaningweni Lokuthuthukiswa Kwe-UV LED Ngaphansi Kwe-Epidemic

Imodeli ye-uv   kuboniswe kulezi zifundo ukuthi zisebenza ngempumelelo ekuvimbeni amagciwane amelana ne-UV, i-HIV-1, kanye ne-Coronavirus 229E yomuntu. Endabeni ye-coronavirus yomuntu, sibone ukuncipha kokuphindaphindeka kwegciwane kuze kufike ku-5.8-Log. Njengoba ukulimala kwe-RNA kuyindlela ethile yokususa imisebe ye-UV nokuthi kanjani-229E iyigciwane le-RNA, abacwaningi babikezela ukuncipha okufanayo kokutheleleka ngemva kokuchayeka ku-UV.

Kodwa-ke, abazange bahlole ngokuqondile ukuthi ingabe lokhu kuncipha kokuphindaphinda kwe-hCoV-229E kuhambisana nokwehliswa okufanayo kokutheleleka. Abacwaningi baxwayisa ngokuthi imiphumela yethu ingasetshenziswa ngokuqondile ukuhlola ukusebenza kahle ekuhlanzeni amagciwane angamboziwe ngoba ngokuvamile ayakwazi ukumelana ne-UV kunamagciwane amboziwe.

Kulolu cwaningo, uphenyo lubonisa ukuthi imiklamo yethu yamagciwane ekhethiwe wonke bekungamagciwane amboziwe, akhethelwe ukuhlola noma yimuphi umehluko ongaba khona ekwamukelweni kwe-UV ngenxa yobude be-viral genome.

Ukungasebenzi kwe-B. Izinhlamvu ze-pumilus, ezidume ngokuba nezinga eliphezulu lokukwazi ukumelana ne-UV, kuboniswe ezivivinyweni zethu. Abacwaningi bathi lokhu kungase kube ubufakazi bokuqala bokuthi amagciwane angavalwanga angavinjwa ukukhanya kwe-UV. Kuye kwaphakanyiswa ukuthi kusetshenziswe i-B. i-pumilus spores njengendlela yokuma yokuhlola ukwenziwa kusebenze kwe-rotavirus yomuntu engamboziwe ngemisebe ye-UV.

https://www.tianhui-led.com/uv-led-diode.html  

Ungathenga kuphi i-UV LED yakho?

Ngokusebenza okuphelele kokukhiqiza, ikhwalithi engaguquki nokwethembeka, nezindleko ezithengekayo, I-Tianhui Electronics   ubesebenza ku Isixazululo se-UV LED   Imakethe. UV   L abakhiqizi be-ed   iza ngama-UVA, UVB, namaza wamaza e-UVC. Ngokusekelwe ekusetshenzisweni okuhlukahlukene kwe-UV, izinhlobo eziningi ze Uv ehola i-diode   ayatholakala, njenge UV LED   izicupho zomiyane, UV LED   amabhodlela okubulala inzalo, futhi afakwe emotweni UV LED   abahlanza umoya.

Namuhla Isixazululo se-UV LED   isetshenziselwa ukuqeda i-pathogen emoyeni kanye nokuhlanzwa kwe-photocatalytic ezimotweni UV LED   abahlanza umoya.

Ngobuchwepheshe bokuvala inzalo be-UVC be-LED obusezingeni eliphezulu, obungenabo ubuthi futhi obungenawo i-mercury, obungenayo imisebe noma iphunga, izinga lokuvala inzalo le-UV lenkomishi yokubulala amagciwane ye-UVC nge-thermal lingafinyelela phezulu lifike ku-99%.

Lapho isetshenziswa ku-a UV LED   isicupho somiyane, Ama-UV ama-LED nge okukhipha esiphezulu optical kungase ngempumelelo ukuheha omiyane phezu endaweni enkulu. Baphinde bakhiqize i-CO2 ngokusabela kwe-photocatalytic nge-TiO2 eboshwe ohlangothini lwangaphakathi lophahla oluphezulu.