Molao-motheo le Tšebeliso ea Ts'ebetso ea UV Ultraviolet: Ho thibela likokoana-hloko ho na le histori e telele.Ka 1903, rasaense oa Denmark Niels Finsen o ile a etsa tlhahiso ea hore phototherapy ea sejoale-joale e ipapisitse le molao-motheo oa ho thibela likokoana-hloko 'me a fuoa Khau ea Nobel ho Physiology kapa Medicine.Lekholong le fetileng la lilemo, sterilization ea UV e phethile karolo ea bohlokoa ho thibeleng le kalafong ea mafu a tšoaetsanoang a matla ho batho, joalo ka ketsahalo ea "likokoanyana tse peli" Amerika Leboea ka bo-1990, SARS naheng ea China ka 2003, le MERS naheng ea Amerika. Haufinyane tjena, ka lebaka la ho phatloha ho hoholo ha coronavirus e ncha (2019-nCoV) Chaena, leseli la UV le lemohuoe ka matla a lona a phahameng a ho bolaea livaerase, e leng mokhoa oa bohlokoa oa ho laola ho ata ha seoa le ho netefatsa polokeho ea bophelo.
UV Sterilization Molao-motheo: Lebone la UV le arotsoe ka A-band (315-400 nm), B-band (280 ho 315 nm), C-band (200 ho 280 nm), le vacuum UV (100-200 nm) ho latela bophara ba eona ba wavelength.Ka kakaretso, mabone a C-band a UV a sebelisetsoa ho thibela likokoana-hloko.Kamora ho pepesetsoa khanya ea C-band ea UV, nucleic acid (RNA le DNA) e ka har'a likokoana-hloko e monya matla a li-photon tsa UV, e leng se etsang hore lipara tsa motheo li be polymerize le ho thibela protheine synthesis, e leng se etsang hore likokoana-hloko li se ke tsa ikatisa, ka hona li fihlele matla. sepheo sa ho phunya.
Melemo ea ho Sterilization ea UV:
1) Sterilization ea UV ha e hlahise lisebelisoa tse setseng kapa lihlahisoa tse chefo, ho qoba tšilafalo ea bobeli tikolohong le oxidation kapa ho bola ha lintho tse ntseng li hloekisoa.
2) Thepa ea sterilization ea UV e bonolo ho e kenya le ho e hlokomela, e na le ts'ebetso e tšepahalang, 'me e theko e tlase.Likokoana-hloko tsa khale tsa lik'hemik'hale tse kang chlorine, chlorine dioxide, ozone, le peracetic acid li chefo haholo, li ka cha, li ka qhoma, kapa li na le lintho tse senyang tse hlokang litlhoko tse thata le tse khethehileng tsa ho thibela likokoana-hloko bakeng sa tlhahiso, lipalangoang, polokelo le tšebeliso.
3) Sterilization ea UV e pharaletseng ebile e sebetsa hantle haholo, e khona ho bolaea likokoana-hloko tse ngata tsa pathogenic ho akarelletsa le protozoa, libaktheria, likokoana-hloko, joalo-joalo Lethal dose ea mahlaseli a 40 mJ / cm2 (hangata e ka finyelloa ha mabone a tlaase a khatello ea mercury a khantšitsoe hole le mitha e le 'ngoe ka motsotso o le mong) e ka bolaea 99.99% ea likokoana-hloko tsa pathogenic.
Sterilization ea UV e na le phello e pharalletseng le e sebetsang hantle ea bactericidal ho likokoana-hloko tse ngata tsa pathogenic, ho kenyeletsoa coronavirus e ncha (2019-nCoV).Ha ho bapisoa le li-sterilizers tsa khale tsa lik'hemik'hale, ho thibela mahlaseli a UV ho na le melemo ea ho se be le tšilafalo ea bobeli, ts'ebetso e ts'eptjoang, le ts'ebetso e phahameng ea ho bolaea likokoana-hloko, tse ka ba molemo haholo ho laola seoa sena.
Nako ea poso: Aug-01-2023