226nm UVC LED Sterilization Rate thiab Kev Ntsuas Kev Nyab Xeeb

Lub tuam txhab Nyij Pooj Asahi Kasei koom tes nrog Nara Medical University, los kawm txog kev ua haujlwm tsis zoo ntawm 226nm UVC LED ntawm tus kabmob tshiab thiab nws cov teebmeem ntawm cov tsiaj tawv nqaij. Cov ntawv xeem tau tshaj tawm tsis ntev los no.

Cov txiaj ntsig kev tshawb fawb pom tau tias 226nm UVC LED tuaj yeem muaj sia nyob tus kabmob tshiab sai sai, thiab piv rau 270nm UVC LED, qhov cuam tshuam ntawm 226nm UVC LED ntawm cov tsiaj tawv nqaij yog me me.

Nws tau nkag siab tias Crystal IS, lub koom haum ntawm Asahi Kasei, twb tau siv Klaran UVC LED nrog lub wavelength ntawm 265nm. Klaran UVC LED tau siv rau UV Streamer cua purifier ntawm Daikin Kev Lag Luam.

Nyob rau theem no, Crystal IS txhawb nqa Asahi Kasei los ua kev tshawb fawb ntawm luv luv wavelengths UVC LED. Tsis ntev los no, raws li kev tshawb fawb thiab kev tsim kho, Asahi Kasei tau tsim cov khoom siv 226nm UVC LED qauv, thiab tau pib ntau qhov kev sim rau nws cov txiaj ntsig ua rau tus mob coronavirus tshiab thiab cuam tshuam rau cov tsiaj tawv nqaij.

Cov nyhuv sterilization ntawm 226nm Leds

Raws li pom hauv daim duab, 100pcs 226nm UVC LEDs tau muab tso rau ntawm lub vaj huam sib luag nrog 10 × 10 array, thiab 270nm UVC LED yog muab tso rau hauv cov khoom sib xws.

Txhua UVC LEDs siv nyob rau hauv txoj kev tshawb no yog raws li Crystal IS proprietary AlN substrate thiab AlGaN technology. Txhua qhov kev sim tshuaj lom neeg tau ua nyob rau hauv qib 3 cov chaw sim tshuaj lom neeg lom neeg ntawm Nara Medical University. Cov kws tshawb fawb tau txais ntau txoj hauv kev tsim nyog thiab nyab xeeb los tswj tus kab mob nquag.

Cov kws tshawb fawb tau txhaj cov tshuaj uas muaj tus kabmob tshiab tshiab rau hauv chav noj mov thiab tom qab ntawd qhuav nws. 226nm thiab 270nm UVC LED vaj huam sib luag arrays irradiated nrog tib cov zis (440 μw / cm2), ces sau tus kab mob no, thiab ntsuas tus nqi ntawm tus kab mob kis los ntawm plaques technology (txoj kev ntsuas tus kab mob ntim tom qab tus kab mob kis mus rau lub hlwb). Cov txiaj ntsig tau pom tias ob lub wavelength UVC LEDs tuaj yeem ua rau 99.9 feem pua ​​​​ntawm cov kab mob hauv li 6 vib nas this, raws li pom hauv daim duab 2.

226nm Leds kev kuaj kev nyab xeeb

Ntxiv rau qhov ua kom tsis muaj menyuam, Asahi Kasei thiab Nara Medical University kuj tau kuaj qhov cuam tshuam ntawm 226nm UVC LED ntawm nas cov tawv nqaij hlwb. Lub hom phiaj yog los kwv yees qhov teeb meem ntawm 226nm UVC LED piv rau 270nm UVC LED.

Cov kws tshawb fawb faib cov hlwb ntawm daim tawv nqaij rau hauv ob txheej, raug rau 226nm UVC LED lossis 270nm UVC LED teeb, thiab qhov ntau npaum li cas yog 100mj / cm2 thiab 500mj / cm2.

Tom qab irradiation, tshem tawm cov txheej txheem saum toj kawg nkaus, siv MTT reagent dye (tetrazole ntsev colorimetry) mus rau hauv lub hlwb, thiab tom qab ntawd sim nws cov absorbance los kwv yees qhov sib npaug ntawm cov cell hauv qab. Thiab dab tsi cov xim tsaus nti qhia tau yog cov seem ntawm cov cell nyob.

Cov txiaj ntsig kev sim qhia tau hais tias kev cuam tshuam ntawm 226nm UVC LED nrog cov koob tshuaj ultraviolet ntawm 100mJ / cm2 tuaj yeem tsis quav ntsej rau ntawm daim tawv nqaij hlwb ntawm nas, thiab lub zog ntawm 226nm UVC LED nrog ultraviolet koob tshuaj ntawm 500mj / cm2 yog qis dua piv rau 270nm UVC LED, raws li qhia hauv daim duab 4 thiab daim duab 5.

Cov txiaj ntsig ntawm kev tshawb fawb saum toj no qhia tau hais tias 226nm UVC LED tuaj yeem muaj sia nyob tus kab mob coronary tshiab. Piv nrog rau 270nm UVC LED uas twb muaj lawm, 226nm muaj qhov cuam tshuam qis dua rau cov tsiaj tawv nqaij. Qhov no piav qhia ntxiv tias nws yuav muaj kev nyab xeeb los siv 226nm UVC LEDs kom tsis muaj caj npab lossis khoom siv nrog cov neeg nyob ib puag ncig lawv.

Xaus

Nyob rau hauv ob xyoos dhau los, txhawm rau txhawb qhov nrov ntawm UVC LEDs, cov tuam txhab thoob ntiaj teb tau ua kom nrawm nrawm ntawm UVC LED thev naus laus zis, suav nrog kev tshawb fawb ntawm luv luv wavelength UVC LEDs, xws li 222nm UVC technology uas nrov xyoo tas los.

Txawm hais tias ntau cov kev tshawb fawb tau ua pov thawj tias qhov kev ua kom tsis muaj menyuam ntawm 222nm UVC thiab tsis muaj kev phom sij rau tib neeg lub cev, qhov tseeb, qhov tsis sib haum xeeb ntawm kev ua tau thiab kev ruaj ntseg ntawm 222nm UVC tseem muaj. Thiab, tam sim no, 222nm UVC feem ntau yog cov roj teeb excimer, kev tshawb fawb ntawm cov tswv yim LED tseem tab tom ua tiav.

Kuv ntseeg tias 226nm UVC LED kuj xav tau kev kuaj xyuas ntau dua, thiab lub sijhawm no Asahi Kasei thiab Nara Medical University tsis tau kuaj qhov cuam tshuam ntawm huab cua kis kab mob thiab nws cuam tshuam rau tib neeg lub cev. Yog li ntawd, xav tau kev tshawb fawb ntxiv txog kev nyab xeeb thiab ua tau. Thiab txhawm rau txhawm rau txhawb kev lag luam ntawm 226nm UVC LED thev naus laus zis, Asahi Kasei txuas ntxiv txhawb kev tshawb fawb thiab kev tsim kho kev ua haujlwm. Nws tau tshaj tawm tias Asahi Kasei UVC LED (Crystal Is) yog tsim nyob rau hauv AlN substrates, yog li nws cov khoom muaj qhov tsis xws ntawm lattice, uas yooj yim dua rau kev ua tiav.< 265nm wavelength="" and="" high optical="">

Txawm li cas los xij, qhov no yog lub ntiaj teb thawj kev tshawb fawb ntawm 226nm wavelength UVC LED. Nws yog ib qho xov xwm zoo rau UVC LED kev lag luam. Kev tshawb fawb thiab kev sim ntau ntxiv yuav raug ua yav tom ntej.