li cas centrifugation cais cov ntshav
Ib qho ntawm cov txheej txheem tseem ceeb hauv kev tshawb fawb kho mob thiab kev kuaj mob hauv tsev kho mob yog centrifugation. Cov txheej txheem no suav nrog kev tig cov qauv ntawm qhov ceev ceev kom cais cov khoom sib txawv raws li lawv qhov sib txawv. Centrifugation yog qhov tseem ceeb tshwj xeeb thaum nws los txog rau kev cais cov khoom tshwj xeeb ntawm cov ntshav. Hauv tsab xov xwm no, peb yuav tshawb nrhiav seb cov txheej txheem centrifugation siv li cas los cais cov ntshav ua nws cov khoom sib txawv, xws li plasma, platelets, thiab cov qe ntshav liab thiab dawb. Peb yuav nkag mus rau hauv cov ntsiab cai tom qab centrifugation, cov hom centrifuges siv, thiab kev siv cov txheej txheem no hauv kev kho mob thiab kev tshawb fawb.
I. Kev Taw Qhia
Ntshav yog ib feem tseem ceeb ntawm tib neeg lub cev ua cov haujlwm tseem ceeb xws li kev thauj cov pa oxygen, kev tiv thaiv kab mob, thiab kev tshem tawm cov khib nyiab. Nws muaj ntau yam khoom, suav nrog cov plasma, cov qe ntshav liab (RBCs), cov qe ntshav dawb (WBCs), thiab cov platelets. Rau ntau yam kev kuaj mob thiab kev tshawb fawb, nws yog qhov tsim nyog los cais cov khoom no kom kawm lawv ib leeg, tshuaj xyuas lawv cov khoom, lossis siv lawv rau kev kho mob tshwj xeeb.
II. Cov Ntsiab Cai ntawm Centrifugation
Kev siv lub tshuab centrifugation siv cov ntsiab cai ntawm kev tso dej thiab qhov ceev kom sib cais cov khoom sib txawv ntawm cov ntshav. Thaum ib qho qauv raug tig ntawm qhov ceev ceev hauv lub tshuab centrifuge, cov khoom me me txav mus rau sab nraud, thaum cov khoom me me tsis sib sau ua ke mus rau hauv nruab nrab ntawm cov qauv. Qhov cuam tshuam ntawm lub zog centrifugal ua rau muaj kev sib cais ntawm cov khoom ntshav raws li lawv qhov ceev, nrog rau cov khoom loj dua txav mus rau hauv qab lossis tsim cov pellet.
III. Hom Centrifuges
Muaj ntau hom centrifuges siv rau kev cais cov ntshav. Cov no suav nrog tabletop centrifuges, microcentrifuges, ultracentrifuges, thiab refrigerated centrifuges. Txhua hom muaj nws cov yam ntxwv tshwj xeeb, qhov ceev, thiab lub peev xwm. Tabletop centrifuges feem ntau siv hauv cov chaw kuaj mob vim lawv muab qhov sib npaug ntawm qhov muaj peev xwm ceev ceev thiab qhov muaj peev xwm ntim cov qauv.
IV. Kev npaj cov qauv ntshav
Ua ntej siv lub tshuab centrifuge, nws yog ib qho tseem ceeb heev uas yuav tsum npaj cov ntshav kom raug kom paub tseeb tias cov khoom sib cais raug. Feem ntau cov ntshav raug sau los ntawm kev siv cov tshuaj anticoagulants kom tiv thaiv kev txhaws. Tom qab ntawd cov ntshav raug sib xyaw kom zoo thiab xa mus rau cov raj centrifuge uas tsim nyog, ceev faj kom tsis txhob muaj cov pa npuas. Cov raj centrifuge raug kaw kom ruaj ntseg kom tsis txhob xau thiab raug muab tso rau hauv lub rotor centrifuge hauv cov qauv sib npaug.
V. Kev Sib Cais Cov Cheebtsam Plasma thiab Cellular
Thaum lub sijhawm centrifugation, cov ntshav sib cais ua ntau txheej sib txawv hauv cov raj centrifuge. Plasma, uas yog cov kua daj ntawm cov ntshav, nce mus rau sab saud vim nws yog cov khoom uas tsis ntom tshaj plaws. Cov txheej no raug rho tawm zoo siv lub pipette lossis cov khoom siv sib cais plasma tshwj xeeb. Cov khoom seem ntawm tes, suav nrog RBCs, WBCs, thiab platelets, tsim cov pellet nyob hauv qab ntawm lub raj.
VI. Kev Cais Cov Qog Ntshav Liab thiab Qog Ntshav Dawb
Tom qab cais cov plasma, cov pellet uas muaj RBCs, WBCs, thiab platelets yuav tsum tau ua kom tiav ntxiv kom cais cov khoom sib cais. Cov pellet raug maj mam rov ua dua hauv cov tshuaj uas tsim nyog hu ua cov tshuaj ntxuav. Cov kauj ruam no suav nrog kev ntxiv ib lub buffer thiab maj mam sib tov kom cov pellet dais kom sib npaug. Tom qab ntawd cov qauv raug centrifugation tom qab kom cais cov RBCs thiab WBCs.
VII. Siv Centrifugation los cais cov Platelets
Cov platelets, tseem ceeb rau kev txhaws thiab kho qhov txhab, tuaj yeem tau txais los ntawm cov txheej txheem hu ua platelet-rich plasma (PRP) npaj. Los ntawm kev siv cov txheej txheem centrifugation tshwj xeeb, PRP tuaj yeem raug rho tawm thiab sau los ntawm cov txheej plasma. PRP siv dav hauv ntau yam kev kho mob, suav nrog kev kho mob orthopedic, kho qhov txhab, thiab dermatology.
VIII. Cov Kev Siv Centrifugation Hauv Kev Kho Mob thiab Kev Tshawb Fawb
Kev siv centrifugation ua lub luag haujlwm tseem ceeb hauv cov chaw kuaj mob thiab kev tshawb fawb. Ntxiv rau kev sib cais cov ntshav, nws siv dav hauv kev cais cov organelles hauv qab cellular, ntxuav cov protein, thiab kawm txog kev sib cuam tshuam ntawm cov cellular. Kev siv centrifugation kuj pom cov ntawv thov hauv kev ntxuav cov kab mob thiab cov nanoparticles, kev ntsuam xyuas cellular, thiab kev tshawb fawb txog tshuaj.
Xaus lus, centrifugation yog ib txoj kev tseem ceeb rau kev cais cov ntshav thiab kawm lawv ib tus zuj zus. Los ntawm kev siv cov ntsiab cai ntawm kev tso dej thiab qhov ceev gradient, cov khoom sib txawv xws li plasma, RBCs, WBCs, thiab platelets tuaj yeem raug cais tawm tau zoo. Kev tshwm sim ntawm ntau hom centrifuges tau pab txhawb rau kev nce qib hauv kev kuaj mob thiab kev tshawb fawb. Nrog nws cov ntawv thov dav dav, centrifugation txuas ntxiv pab txhawb kev tshawb pom tshiab hauv thaj chaw ntawm biomedical sciences.
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