Hauv chav kuaj mob, cov kev txiav txim siab tsis tu ncua los txiav txim siab seb yuav ua li cas thiaj ua tau qhov kev sim thiab ntsuas qhov tseem ceeb. Sij hawm dhau mus, cov lus qhia pipette tau hloov kho kom haum rau cov chaw sim thoob plaws ntiaj teb thiab muab cov cuab yeej kom cov kws tshaj lij thiab cov kws tshawb fawb muaj peev xwm los ua cov kev tshawb fawb tseem ceeb. Qhov no muaj tseeb tshwj xeeb vim tias COVID-19 txuas ntxiv mus thoob plaws Tebchaws Meskas. Cov kws kho mob kis kab mob thiab cov kws kho mob virologist ua haujlwm ib puag ncig los kho tus kab mob. Cov lus qhia lim pipette ua los ntawm cov yas yog siv los kawm txog tus kab mob thiab ib zaug loj heev, iav pipettes tam sim no yog sleek thiab automated. Tag nrho ntawm 10 lub tswv yim yas pipette yog siv los ua ib qho kev sim COVID-19 tam sim no thiab feem ntau ntawm cov lus qhia uas tau siv tam sim no muaj cov lim dej hauv lawv uas yuav tsum thaiv tawm 100% ntawm cov aerosols thiab tiv thaiv kev sib kis kab mob thaum ua piv txwv. Tab sis ntau npaum li cas yog cov lus qhia tseem ceeb dua thiab tus nqi ib puag ncig muaj txiaj ntsig zoo rau cov chaw sim thoob plaws tebchaws? Cov chaw kuaj mob puas yuav txiav txim siab tso cov lim dej?
Nyob ntawm qhov kev sim lossis kev sim ntawm tes, cov chaw sim thiab cov chaw tshawb fawb yuav xaiv siv cov lus qhia tsis yog lim los yog lim dej pipette. Feem ntau cov chaw sim siv cov lus qhia lim vim lawv ntseeg tias cov lim dej yuav tiv thaiv txhua qhov aerosols los ntawm kev kis tus qauv. Cov lim dej feem ntau pom tau tias yog tus nqi-txuag txoj hauv kev kom tshem tawm tag nrho cov kab mob ntawm cov kab mob los ntawm cov qauv, tab sis hmoov tsis qhov no tsis yog li ntawd. Polyethylene pipette tip filters tsis tiv thaiv kev kis kab mob, tab sis tsuas yog ua kom qeeb ntawm kev sib kis.
Ib tsab xov xwm Biotix tsis ntev los no hais tias, "[ lo lus] thaiv yog me ntsis ntawm lub npe tsis zoo rau qee cov lus qhia no. Tsuas yog qee cov lus qhia high-end muab qhov tseeb sealing barrier. Cov lim dej feem ntau tsuas yog qeeb cov kua los ntawm kev nkag mus rau hauv pipette chim. " Cov kev tshawb fawb ywj pheej tau ua tiav saib lwm txoj hauv kev rau cov ntxaij lim dej thiab lawv cov txiaj ntsig piv nrog cov lus qhia tsis yog lim. Ib tsab xov xwm luam tawm nyob rau hauv Phau ntawv Journal of Applied Microbiology, London (1999) tau kawm txog kev ua tau zoo ntawm polyethylene lim cov lus qhia thaum muab tso rau hauv qhov kawg ntawm cov kav dej pipette taub hau qhib piv rau cov lus qhia tsis lim. Tawm ntawm 2620 qhov kev sim, 20% ntawm cov qauv qhia pom muaj cov kab mob sib kis ntawm lub qhov ntswg pipettor thaum tsis muaj lim siv, thiab 14% ntawm cov qauv tau hla cov kab mob thaum siv polyethylene (PE) lim tswv yim (Daim duab 2). Txoj kev tshawb no tseem pom tau tias thaum cov kua hluav taws xob los yog plasmid DNA tau muab tso rau hauv qhov tsis muaj lim, kev kis kab mob ntawm cov kav dej tau tshwm sim hauv 100 pipettings. Qhov no qhia tau hais tias txawm hais tias cov lus qhia lim tau txo qis cov kab mob sib kis los ntawm ib qho pipette mus rau lwm qhov, cov lim dej tsis txhob cuam tshuam tag nrho.
Post lub sij hawm: Aug-24-2020