Hauv cov teb ntawm biology thiab tshuaj, kev tiv thaiv cov qauv kab mob yog qhov tseem ceeb tshaj plaws. Sib nrug ntawm kev "pw tsaug zog" hauv chaw soj nstuam thiab tsev kho mob, cov qauv no feem ntau xav tau kev thauj mus los. Txhawm rau khaws cia lossis thauj cov qauv kab mob muaj nqis no kom muaj kev nyab xeeb, kev siv cov thoob dej nitrogen ntawm qhov kub tob heev ntawm -196 degrees Celsius yog qhov tseem ceeb.
Cov thoob dej nitrogen ua kuaFeem ntau muab faib ua ob hom: cov thoob dej cia kua nitrogen thiab cov thoob dej thauj kua nitrogen. Cov thoob dej cia feem ntau yog siv rau kev khaws cia kua nitrogen hauv tsev, nrog rau lub peev xwm loj dua thiab ntim uas tsis haum rau kev thauj mus los ntev hauv cov xwm txheej ua haujlwm.
Qhov sib txawv, cov thoob dej thauj cov kua nitrogen yog qhov sib dua thiab tsim los ua kom tau raws li qhov yuav tsum tau thauj mus los. Txhawm rau kom ntseeg tau tias tsim nyog rau kev thauj mus los, cov thoob dej no tau dhau los ntawm kev tsim tshwj xeeb tiv thaiv kev co. Dhau li ntawm kev khaws cia zoo li qub, lawv tuaj yeem siv rau kev thauj mus los thaum puv nrog cov kua nitrogen, tab sis yuav tsum tau ceev faj kom tsis txhob muaj kev sib tsoo thiab kev co hnyav.
Piv txwv li, Haier Biomedical's Liquid Nitrogen Biobanking Series muaj peev xwm thauj cov qauv tshuaj lom neeg hauv qhov chaw kub thiab txias heev. Nws cov qauv tsim tau zoo tiv thaiv kev tso tawm ntawm cov kua nitrogen thaum lub sijhawm thauj mus los.
Thaum cov neeg ua haujlwm xav tau kev thauj mus los hauv huab cua luv luv, Biobanking Series ua pov thawj tias muaj nqis heev. Cov koob no muaj cov qauv txhuas ruaj khov nrog tsib qhov ntim tshwj xeeb rau xaiv, 3-xyoo lav lub tshuab nqus tsev, ua kom ntseeg tau tias muaj kev nyab xeeb ntev ntawm cov qauv. Cov thoob dej tuaj yeem khaws cov vials cryogenic lossis 2ml txheem khov raj, nruab nrog lub tshuab cais tshwj xeeb stainless-steel rau qhov chaw khaws cia thiab lub cev nqus dej nitrogen. Cov hau xauv tau xaiv tau ntxiv ib txheej ntxiv ntawm kev ruaj ntseg rau kev khaws cov qauv.
Txawm hais tias kev tsim cov thoob dej nitrogen ua rau kev thauj mus los yooj yim, yuav tsum tau ua raws li ntau yam kev ceev faj txog kev nyab xeeb thoob plaws hauv kev thauj mus los. Ua ntej, nws yog ib qho tseem ceeb kom ntseeg tau tias txhua lub qhov hloov pauv ntawm lub thoob dej nitrogen ua haujlwm zoo ib yam li thaum khaws cia. Tsis tas li ntawd, lub thoob dej yuav tsum tau muab tso rau hauv lub thav ntoo nrog lub ncoo kom zoo, thiab yog tias tsim nyog, khi rau lub tsheb thauj khoom siv hlua kom tiv thaiv kev txav mus los thaum thauj mus los.
Tsis tas li ntawd xwb, kev siv cov khoom ntim ntawm cov thoob dej yog qhov tseem ceeb heev kom tiv thaiv kev sib tsoo thiab kev cuam tshuam thaum thauj mus los, yog li ntawd thiaj li tsis txhob muaj xwm txheej. Thaum thauj thiab tshem cov thoob dej nitrogen, yuav tsum tau ua tib zoo saib xyuas kom tsis txhob muaj kev sib tsoo. Tsis txhob rub lawv mus rau hauv av, vim nws yuav ua rau lub neej ntawm cov thoob dej nitrogen luv dua.
Lub sijhawm tshaj tawm: Lub Ib Hlis-04-2024
