Ngaba ukukhanya kwe-UVC kuyasebenza kwiBacteria kunye neeVirus?

Iintsholongwane kunye neentsholongwane ziyi-microorganisms ezincinci ezinokubangela izifo ezahlukeneyo kunye

iimeko. Ukuthintela ukudluliselwa kwezifo kunye nezifo ezinjalo, ezi microorganisms kufuneka zisuswe kwiindawo kunye nomoya. Ukusebenzisa imitha ye-ultraviolet (UV) yenye yeendlela ezisebenzayo zokuphumeza oku. UVC ukukhanya ibonakaliswe njengeyona ndlela isebenzayo yokukhanya kwe-UV yokutshabalalisa ibhaktheriya kunye neentsholongwane. Eli nqaku liza kuchaza ngokweenkcukacha ukuba yintoni imitha yeultraviolet C (UVC), indlela esebenza ngayo, nendlela esebenza ngayo ekubulaleni iintsholongwane neentsholongwane.

Ukukhanya kwe-UVC kunobude obuphakathi kwe-200 kunye ne-280 nanometers (nm). Inobude obufutshane kunokukhanya okubonakalayo, kunye nemitha ye-UVA kunye ne-UVB evela elangeni esichaneke kuyo.Ikwabizwa ngokuba yi-UV ye-germicidal kuba inokuphelisa i-DNA yeemicroorganisms ezinjengeentsholongwane kunye neebhaktheriya.

Isebenza njani ukukhanya kweUVC?

Imisebenzi yemitha ye-UVC ngokubangela umonakalo we-DNA kwii-microorganisms ezifana neebhaktheriya kunye neentsholongwane. Enye yee-nucleotides ezine ezibandakanya i-DNA, i-thymine, yenza i-covalent bonds kunye ne-molecule ye-thymine ekufutshane xa ibonakaliswe kwimitha ye-UVC. Oku kubangela ukubunjwa kwe-thymine dimer, ephazamisa isakhiwo se-DNA helix kwaye inqanda ukuphindaphinda kwe-DNA. I-microorganism ayikwazi ukunyamezela kwaye ivelise kwakhona ngaphandle kokukwazi ukuphindaphinda.

Imitha ye-UVC kufuneka ibe nobude obufanelekileyo kunye nokuqina ukuze isebenze. UVC ukukhanya  ubunzulu bulinganiswa ngee-microwatts ngesentimitha yesikwere (W/cm2). Ubukhulu buyimfuneko ukuphelisa iibhaktheriya kunye neentsholongwane zixhomekeke kuhlobo lwe-microorganism, umgama phakathi komthombo wokukhanya kunye ne-microorganism, kunye nobude be-exposure.

I-UVC Radiation kunye neBacteria

Ukukhanya kwe-UVC kubonakaliswe ukuba kusebenza ngokuchasene neentlobo ezahlukeneyo zebhaktheriya. Kolunye uphononongo, UVC ukukhanya yanciphisa inani leebhaktheriya ze-Staphylococcus aureus kumphezulu nge-99.9% emva kwemizuzwana nje ye-5 yokuvezwa kwi-0.32 W / cm2 yokukhanya kwe-UVC. Umzuzu omnye wokuvezwa kokukhanya kwe-UVC kunye nokuqina kwe-1.8 W / cm2 kwakwanele ukuphelisa i-99.9% yebhaktheriya ye-Pseudomonas aeruginosa, ngokutsho kolunye uphando.

UVC ukukhanya kubonakaliswe ukutshabalalisa iibhaktheriya ezinganyangekiyo ngamachiza. Kwisifundo esinye, imizuzwana ye-10 yokuvezwa kokukhanya kwe-UVC kwinqanaba le-0.2 W / cm2 yanciphisa inani le-antidrug-resistant Acinetobacter baumannii bacteria ebusweni nge-99.9%. Imizuzwana emi-5 yokuvezwa kwi-0.5 W/cm2  UVC ukukhanya t yanciphisa inani le-multidrug-resistant Klebsiella pneumoniae bacteria kumphezulu nge-99.9%, ngokophononongo olwahlukileyo.

Imitha ye-UVC kunye neeNtsholongwane

Isibane seUVC sifunyaniswa sisebenza ngokuchasene neendidi ngeendidi zeentsholongwane. Kwimizuzu eyi-15, UVC ukukhanya  ngokuqina kwe-0.1 W/cm2 kunciphise ukosuleleka kwentsholongwane yomkhuhlane A ngama-99.99%, ngokutsho kolunye uphando. Kwesinye isifundo, imizuzu eyi-15 yokuvezwa UVC ukukhanya ngokuqina kwe-0.5 W/cm2 kunciphise ukosuleleka kwe-coronavirus yabantu OC43 ngama-99.9%.

Ikwabonakaliswe ukuba iyasebenza ngokuchasene ne-COVID-19 ebangela i-SARS-CoV-2 intsholongwane ngokusebenzisa a i di usulelo . Kwimizuzwana engama-25, UVC ukukhanya  ngokuqina kwe-0.1 W/cm2 yehlise ukosuleleka kwentsholongwane ye-SARS-CoV-2 ngama-99.9%, ngokutsho kolunye uphononongo. Kwesinye isifundo, ukuvezwa kwi UVC ukukhanya ngokuqina kwe-0.05 W/cm2 kunciphise ukosuleleka kwentsholongwane ye-SARS-CoV-2 ngama-99.9% ngomzuzu nje omnye.

Kubalulekile ukuqaphela ukuba ukusebenza kakuhle kwe   Ukutshabalalisa iintsholongwane kuxhomekeke kwizinto ezininzi, kuquka uhlobo lwentsholongwane, ubukhulu bokukhanya, kunye nobude bexesha lokuvezwa. Nangona kunjalo, uphando lubonise ukuba ukukhanya kwe-UVC kunokuba sisixhobo esiluncedo sokuthintela ukusasazeka kweentsholongwane ezinjengomkhuhlane, ii-coronavirus zabantu, kunye ne-SARS-CoV-2.

Ukuthintelwa kokukhanya kwe-UVC

Ukukhanya kwe-UVC kubonakaliswe ukuba kusebenza ngokubulala iintsholongwane kunye neentsholongwane, kodwa ukusetyenziswa kwayo kulinganiselwe.

●  Okokuqala, kuphela ii-microorganisms ezivezwe ngokuthe ngqo kuyo ezinokubulawa kubandakanywa Isifo samanzi e-UV . Ke ngoko, umphezulu kunye nezinto ezingadibani ngokuthe ngqo nemitha ye-UVC zisenokugcina ibhaktheriya kunye neentsholongwane.

●  Okwesibini, ukubonakaliswa ngokuthe ngqo kuyo ixesha elide kunokuba yingozi ebantwini.Ukugqithisa ngokugqithiseleyo kunokukhokelela ekucaphukeni kwesikhumba, ukulimala kwamehlo, kunye neminye imiba yezempilo. Ke ngoko, kubalulekile ukuthobela izikhokelo zokhuseleko lokukhanya kwe-UVC kwaye uqinisekise ukuba abantu abavezwa ngokuthe ngqo ekukhanyeni.

●  Okwesithathu, iyakwazi ukutshabalalisa ibhaktheriya kunye neentsholongwane kuphela ukuba isetyenziswe ngamandla kunye nobude obufanelekileyo. Isenokungasebenzi ekupheliseni iimicroorganisms ukuba ubunzulu okanye ixesha lokuvezwa alanelanga.

●  Okokugqibela, imitha ye-UVC ayinakusebenza kuzo zonke iibhaktheriya kunye neentsholongwane. Ezinye ii-microorganisms kunye neentsholongwane zinokumelana ngakumbi nokukhanya kwe-UVC kunezinye.

Ayizizo zonke izibane ze-UV ezifanayo!

Ayiyiyo yonke imitha ye-UV esebenza ngokulinganayo ekutshabalaliseni iintsholongwane kunye neentsholongwane. Kukho iintlobo ngeentlobo zokukhanya kwe-UV, nganye inobude obuhlukeneyo kunye neempawu. Ukuze uqonde umahluko phakathi kweentlobo zokukhanya kwe-UV, kuyimfuneko ukuhlola i-ultraviolet spectrum.

UV-A kunye ne-UV-B

I-UV-A kunye ne-UV-B zezona ntlobo zaziwayo zokukhanya kwe-ultraviolet, kwaye yimitha yelanga efikelela emhlabeni. Nangona kunjalo, ezinye iintlobo zokukhanya kwe-UV ziqhele ukusetyenziswa kwiimveliso ezibulala iintsholongwane emoyeni.

UV-C

I-UV-C, ekwaziwa ngokuba yi-Germicidal UV, iqulathe ubude bamaza phakathi kwe-200 kunye ne-280 nanometers. Olu lolona hlobo luqhelekileyo lwe-UV ebulala iintsholongwane oluye lwasetyenziswa zizazinzulu ngaphezu kwenkulungwane ukubulala iintsholongwane emanzini, emoyeni nangaphezulu. I-UV-C itshabalalisa kwaye ingasebenzi kakuhle zonke iintlobo ze-microorganisms, kubandakanya iintsholongwane, ibhaktheriya, ukungunda kunye nokungunda.

Ukude-UVC

I-Far-UVC yi-subset ye-UV-C, equka ubude be-wavelengths phakathi kwe-207 kunye ne-222 nanometers. IFar-UVC yahlukile kuba kukholelwa ukuba ayinabungozi ekuvezweni komntu. Lo mda wokukhanya unobubanzi obumxinwa kakhulu obuthintela ukuba ungangeni ngaphaya komgangatho ongaphandle we-epidermis yethu, kodwa usenokubulala iintsholongwane kunye neebhaktheriya. Kule minyaka ilishumi idlulileyo, izazinzulu zaqala ukugxila kwi-UVC ekude, ngoko ke uphando malunga neziphumo ezibi ezinokubakho lulinganiselwe kune-UV-C.

Kufuphi ne-UV

I-UV ekufutshane ibandakanya ubukhulu becala i-UV-A, esenayo iipropathi zokubulala iintsholongwane kodwa ayinakutshabalalisa iintsholongwane ezifana ne-UV-C. Kwiindawo zonyango kunye neendawo eziphezulu zokunyamekela, kufuphi nokukhanya kwe-ultraviolet kunokuncedisa ukunciphisa amazinga osulelo lwebhaktheriya. La maza amaza akufuphi kakhulu nokukhanya okubonakalayo kwaye kucingelwa ukuba akhuselekile ebantwini.

Ukuba wakho’kwakhona uthabathekile zizibane ze-UV kwaye ufuna ukuphonononga ngakumbi, jonga Tiuhani Electronic , Abavelisi be-UV LED diode !