Lub teeb ultraviolet tuaj yeem siv los tua cov zaub mov
Ultraviolet rays tuaj yeem tua cov kab mob thiab muaj peev xwm ua kom muaj carcinogenic. Yog li, cov zaub mov kho nrog lub teeb ultraviolet puas tuaj yeem noj tau?
Ultraviolet lub teebtxhais tau tias yog hluav taws xob electromagnetic nrog wavelengths ntawm 10 thiab 400 nanometers. Txawm li cas los xij, hauv kev siv tswv yim, lub wavelength siv feem ntau yog ntau tshaj 100 nanometers. UVA wavelengths nruab nrab ntawm 315 thiab 409 nanometers feem ntau tan ntawm daim tawv nqaij, UVB wavelengths ntawm 280 thiab 315 nanometers tuaj yeem hlawv daim tawv nqaij thiab ua rau muaj kev pheej hmoo ntawm mob qog noj ntshav, UVC wavelengths ntawm 200 thiab 280 nanometers muaj txiaj ntsig tua kab mob thiab kab mob, thiab UV yoj wavelengths. 100 thiab 200 nanometers yog absorbed los ntawm oxygen nyob rau hauv cov huab cua. Yog li ntawd, nws tsuas tuaj yeem ua haujlwm hauv lub tshuab nqus tsev lossis tsawg kawg ib qho chaw tsis muaj pa oxygen, uas tsis haum rau kev ua kom tsis muaj menyuam. Ib txwm siv ultraviolet sterilization siv lub wavelength ntawm 254 nanometers. Kev siv tshuaj tua kab mob ultraviolet, feem ntau yog siv qhov tsim nyog wavelength ntawm ultraviolet lub teeb los rhuav tshem DNA molecular qauv nyob rau hauv lub hlwb ntawm lub microbial lub cev, ua rau tuag ntawm kev loj hlob hlwb los yog regenerative hlwb, kom ua tiav cov nyhuv ntawm sterilization, nyob rau hauv cov txheej txheem no yuav tsis tshwm sim teeb meem. tshuaj, cov khoom noj uas tsis muaj menyuam tuaj yeem noj tau ib txwm.
Los ntawm sab laug mus rau sab xis yog X-rays thiab ultraviolet lub teeb. Lub teeb pom kev, lub teeb infrared, lub wavelength ntawm lub teeb nce nyob rau hauv lem. Feem ntau siv sterilization wavelength ntawm 6254 nm yog nyob rau hauv qhov deb ultraviolet (UVC) band ntawm ultraviolet lub teeb.
Thaum UV rays absorbed los ntawm cov kab mob los yog cov kab mob, lawv puas DNA, ua rau lawv tsis muaj peev xwm ntawm multiply. Hais txog kev ua kom tsis muaj menyuam, nws yog tib yam li cua sov lossis kho nrog tshuaj. Txawm li cas los xij, lub teeb ultraviolet tsis kub, thiab nws tsis rhuav tshem cov as-ham - vim DNA tsis yog cov khoom noj khoom haus, thiab cov tshuaj uas lub cev xav tau tsis raug rhuav tshem. Tsis tas li ntawd, nws yuav tsis rhuav tshem lub ntuj tsw ntawm cov zaub mov. Tshuaj fungicides los yog preservatives, tom qab tag nrho, qhia cov tshuaj tshiab, thiab qee zaum coj ib co "odors." Cov DNA molecules raug rhuav tshem los ntawm lub teeb ultraviolet nkag mus rau tib neeg lub cev thiab yuav tawg, thiab yuav tsis tsim cov tshuaj phem. Yog li ntawd, txawm hais tias lub teeb ultraviolet muaj peev xwm ua rau mob qog noj ntshav, cov zaub mov kho nrog lub teeb ultraviolet tsis muaj kev nyab xeeb.
Txhua txoj kev ua zaub mov yuav muaj qee qhov "kev puas tsuaj" ntawm cov zaub mov. Kev kho uv yog qhov kev puas tsuaj tsawg dua li cov cua sov tshaj plaws. Rau qee cov khoom noj uas xav nyob hauv lawv "natural state," xws li txiv hmab txiv ntoo, nws muaj txiaj ntsig zoo.
Lub peev xwm ntawm UV tua cov kab mob tsis yog tsuas yog cuam tshuam nrog lub wavelength, tab sis kuj nyob ntawm lub zog uas yog tawg rau cov zaub mov. Ntawm qhov xaiv wavelength ntawm 254 nm, cov kab mob bactericidal thiab lub zog siv zog qhia tau tias stretched S-puab. Hauv lwm lo lus, ntawm lub zog qis, cov nyhuv bactericidal tsis zoo, vim tias cov kab mob lossis cov kab mob, zoo li tib neeg lub cev, muaj peev xwm kho DNA puas. Thaum lub zog irradiation tsawg, cov DNA puas raug kho nyob rau lub sijhawm, thiab cov kab mob thiab cov kab mob tuaj yeem txuas ntxiv mus ntxiv. Thaum lub zog siab mus rau qee qhov, DNA kho qhov system yog tibneeg hu tauj coob, thiab DNA puas tsuaj nce ntxiv, uas tau pom nyob rau hauv macro uas cov kab mob los yog kab mob "tua". Tshaj li qhov kev siv zog no, nrog rau txhua qhov nce ntxiv, lub peev xwm ua kom tsis muaj menyuam yuav tau nce ntxiv. Txawm li cas los xij, thaum nws nce mus rau ib qho twg, nws nkag mus rau lub platform thib ob - thiab txuas ntxiv ua kom lub zog, thiab cov nyhuv bactericidal nce me ntsis. Qhov "tail" hauv kev ua kom tsis muaj menyuam tuaj yeem yog vim qhov tseeb tias qee cov kab mob tiv thaiv UV tawm tsam, lossis nws yuav yog vim qhov tseeb tias qee cov qauv kho tsis tuaj yeem raug irradiated.
Vim hais tias ntawm lub hav zoov ntawm no "tus Tsov tus tw", ultraviolet sterilization yog ib qho nyuaj rau ua tiav ib tug tua raws li cua sov los yog tshuaj fungicides. Nws feem ntau yog siv los txo tus nqi ntawm 4 khub raws li "tus qauv ua kom tsis muaj menyuam", uas yog, ib qho ntawm 10, 000 kab mob muaj sia nyob. Pasteurization ntawm cov mis nyuj tshiab - kho ntawm 72 degrees Celsius rau 15 vib nas this ib pawg - feem ntau yog txo los ntawm tsib khub, uas yog, feem ntau ntawm ib ntawm 100, 000 cov kab mob muaj sia nyob. Yog hais tias nws yog ultra-siab kub sterilization ntawm cov mis nyuj kub ib txwm, qhov txo tus khub tus nqi yog ntau tshaj 12, yuav luag tsis muaj kab mob muaj sia nyob.
Cov kab mob sib txawv muaj qhov sib txawv rau lub teeb ci ultraviolet, thiab qee qhov yuav raug tua ntau ntawm qhov qis zog siv, thaum lwm tus xav tau lub zog siab dua. Los ntawm kev txo qis tus nqi ntawm plaub khub, qee cov kab mob uas tau sim hauv txoj kev tshawb no tsuas yog ob peb kaum joules ib square meter ntawm lub zog, thaum lwm tus xav tau ntau tshaj 300 joules ib square meter. Peb tsis paub tias cov kab mob twg muaj nyob rau hauv cov zaub mov tiag tiag, thiab muaj pes tsawg tus ntawm lawv muaj, yog li peb ib txwm tsom qhov nyuaj tshaj plaws thiab tua lwm tus. Yog li ntawd, lub zog siv nyob rau hauv ultraviolet sterilization yuav tsum siab tshaj 400 joules ib square meter.
Cov nyhuv sterilization ntawm ntau yam kev ua kom tsis muaj menyuam yuav raug cuam tshuam los ntawm lub cev thiab tshuaj lom neeg ntawm cov khoom noj. Piv txwv li, cua sov los yog autoclaving, kub, pH thiab siab tag nrho muaj kev cuam tshuam loj. Nyob rau hauv ultraviolet sterilization, cov yam tseem ceeb no tsis tshua tseem ceeb. Tus yuam sij rau UV sterilization yog tias UV rays tuaj yeem ncav cuag cov kab mob, yog li kev nkag mus yog qhov tseem ceeb. Cov yam ntxwv xws li cov khoom noj muaj pes tsawg leeg, cov ntsiab lus ntawm cov khoom, xim thiab lwm yam yuav cuam tshuam rau kev nqus ntawm ultraviolet lub teeb, yog li cuam tshuam rau lub thickness ntawm nws nkag mus, uas muaj kev cuam tshuam zoo rau cov kab mob bactericidal. Yog tias cov zaub mov tsis sib xws thiab pob tshab, qhov nkag mus ntawm lub teeb ultraviolet yog qhov zoo, cov nyhuv sterilization yuav zoo; Ntawm qhov tsis sib xws, yog tias cov zaub mov muaj huab, ces lub teeb ci ultraviolet yuav tawg, lub zog yuav raug txo qis hauv qhov nkag mus, thiab cov nyhuv ua kom tsis muaj menyuam yuav tsis zoo.
Nws yuav tsum raug sau tseg tias kev nkag mus ntawm lub teeb ci ultraviolet yog qhov tsis muaj zog, lub thickness ntawm cov ntawv luam ntawv tsis tuaj yeem nkag mus, thiab nws tsuas tuaj yeem tua cov kab mob, kab mob thiab cov kab mob ntawm cov khoom noj rau cov zaub mov tua kab mob, thiab tsis tuaj yeem ua kom tsis muaj kab mob. cov khoom noj sib sib zog nqus. Nws tseem yog ib qho nyuaj kom tau txais cov khoom noj kom tau txais UV hluav taws xob sib npaug hauv txheej nyias. Qhov no congenital defect heev txwv nws qhov kev thov.
Qhov laj thawj yog vim li cas kuv xav siv tshuaj tua kab mob ultraviolet yog tias nws tuaj yeem ua tiav cov txiaj ntsig ntawm cov tshuaj tua kab mob cua sov, thiab yuav tsis rhuav tshem cov as-ham thiab ntuj tsw ntawm cov zaub mov, thiab tam sim no qee cov khw noj mov yuav yuav cov teeb ci ultraviolet los tua cov phaj, tais. , chopsticks thiab lwm yam, cov nyhuv zoo heev.
Tam sim no, muaj peb lub ntsiab kev siv ntawm ultraviolet sterilization hauv kev lag luam khoom noj
Thawj yog cov tshuaj tua kab mob ntawm cov khoom siv ua zaub mov. Rau cov khoom siv, cov kab mob ib txwm nyob tsuas yog nyob rau saum npoo, thiab qhov tsis muaj zog ntawm kev nkag mus rau ultraviolet tsis yog qhov xav tau sai, thiab qhov zoo ntawm kev tsis muaj cua sov thiab tsis qhia lwm yam khoom (xws li dej) tau ua si tag nrho.
Qhov thib ob yog pretreatment ntawm cov zaub mov ua dej. Txhawm rau txo cov kab mob uas tuaj yeem nkag rau hauv cov txheej txheem tsim khoom, sterilization pretreatment ntawm kev ua dej yog ib qho kev ntsuas uas tau txais ob zaug qhov tshwm sim nrog ib nrab ntawm kev siv zog. Piv nrog rau "tshwj xeeb txhais tau tias" ntawm kev ntxiv cov tshuaj chlorine los yog chloride, ultraviolet sterilization yam tsis muaj kev qhia txog cov tshuaj muaj peev xwm zam kom tsis txhob muaj kev pheej hmoo ntawm kev ua kom tsis muaj menyuam thiab zam cov ntxhiab tsw los ntawm fungicides.
Thib peb, tam sim no, kev siv ultraviolet sterilization hauv cov khoom noj ncaj qha feem ntau yog kua txiv hmab txiv ntoo. Lub tsw ntawm cov kua txiv hmab txiv ntoo yog hloov tau yooj yim los ntawm tshav kub, yog li "kev ua haujlwm tsis zoo" yog qhov txaus nyiam hauv cov kua txiv hmab txiv ntoo. Lub npe ntawm cov tshuaj tua kab mob ib leeg tsis ua rau cov neeg siv khoom nyiam, yog li kev siv tshuaj tua kab mob ultraviolet tsis hloov qhov tsw thiab tsis qhia "tshuaj lom neeg muaj pes tsawg leeg" muaj kev siv zoo.
