Dab tsi yog cov centrifuge uas ua rau tus kws tshawb fawb cais tawm
Centrifuges: Cais Cov Lus Zais Ntawm Kev Tshawb Fawb
Kev Taw Qhia:
Hauv lub ntiaj teb kev tshawb fawb txog kev tshawb fawb uas txaus nyiam heev, ib qho ntawm cov cuab yeej siv dav tshaj plaws yog lub centrifuge. Lub cuab yeej ntse no ua rau cov kws tshawb fawb muaj peev xwm cais ntau yam tshuaj thiab qhib cov lus zais uas zais hauv lawv. Txij li kev kuaj mob mus rau tshuaj thiab txhua yam nyob nruab nrab, centrifuges ua lub luag haujlwm tseem ceeb hauv ntau qhov chaw ntawm kev tshawb fawb. Hauv tsab xov xwm no, peb nkag mus rau hauv kev ua haujlwm ntawm centrifuges thiab tshawb nrhiav seb lawv ua rau cov kws tshawb fawb muaj peev xwm cais thiab kawm cov tshuaj ntawm theem me me.
I. Cov Txheej Txheem ntawm Lub Centrifuge:
Hauv nws lub hauv paus, lub centrifuge yog ib lub cuab yeej uas tig ntawm qhov ceev ceev, tsim lub zog centrifugal. Lub zog no tawm ntawm qhov chaw thiab tsav cov khoom hnyav dua mus rau ntug sab nraud ntawm lub thawv tig, cais lawv ntawm cov khoom sib dua. Nrog rau lub hauv paus ntsiab lus no, centrifuges muaj peev xwm cais cov khoom sib xyaw, cais cov cell, thiab ua ntau yam txheej txheem muaj txiaj ntsig hauv kev tshawb fawb.
II. Cov Txuj Ci Centrifugation:
Kev siv centrifugation muaj ntau hom sib txawv, txhua hom yog tsim los rau cov kev tshawb fawb tshwj xeeb. Cia peb tshawb nrhiav qee cov txheej txheem uas cov kws tshawb fawb siv feem ntau:
a) Kev Siv Lub Tshuab Centrifugation Txawv: Cov txheej txheem no suav nrog ntau qhov kev siv lub tshuab centrifugation ntawm qhov ceev zuj zus kom cais cov tshuaj raws li lawv qhov ceev. Los ntawm kev kho qhov chaw centrifuge rau txhua qhov kev siv, cov kws tshawb fawb tuaj yeem cais ntau yam khoom sib xyaw hauv cov khoom sib xyaw.
b) Kev Siv Gradient Centrifugation: Siv cov density gradients, cov txheej txheem no suav nrog kev txheej ib qho qauv hla ib qho gradient medium thiab centrifuging nws. Thaum cov khoom me me txav mus los ntawm qhov gradient, lawv sib cais raws li lawv cov buoyant densities, tsim cov kab sib txawv raws lub raj. Txoj kev no yog qhov tshwj xeeb tshaj yog rau kev sib cais cov molecules ntawm cov densities zoo sib xws.
c) Isopycnic Centrifugation: Hauv cov txheej txheem no, tseem hu ua buoyant density centrifugation, qhov ceev ntawm cov tshuaj sib xws nrog cov khoom me me uas tau kawm. Yog li ntawd, cov khoom me me tseem dai ntawm cov chaw tshwj xeeb hauv lub raj centrifuge, ua rau cov kws tshawb fawb cais lawv raws li kev hloov pauv ntawm buoyant densities.
III. Cov Kev Siv ntawm Centrifuges:
Cov centrifuges nrhiav tau daim ntawv thov thoob plaws ntau yam kev tshawb fawb. Nov yog ob peb qho piv txwv tseem ceeb:
a) Kev Tshawb Fawb Txog Kab Mob: Hauv kev tshawb fawb txog kab mob, cov tshuab centrifuges yog qhov tseem ceeb heev. Cov kws tshawb fawb siv lawv los cais thiab kawm txog ntau yam khoom ntawm lub cell, xws li mitochondria, nuclei, thiab organelles, pab kom nkag siab txog cov txheej txheem ntawm lub cell thiab cov txheej txheem kab mob.
b) Kev Kuaj Mob Hauv Tsev Kho Mob: Cov tshuab centrifuges ua lub luag haujlwm tseem ceeb hauv cov chaw kuaj mob, ua rau muaj peev xwm cais cov qauv ntshav ua ntau yam sib txawv. Los ntawm kev tig cov ntshav ntawm qhov ceev ceev, lawv pab txhawb kev cais cov qe ntshav liab thiab dawb, plasma, thiab platelets, pab hauv kev kuaj mob, ntaus cov ntshav, thiab cov txheej txheem kho mob.
c) Kev Tsim Tshuaj: Cov tshuab centrifuges yog qhov tseem ceeb hauv kev tshawb fawb thiab kev tsim tshuaj. Lawv pab txhawb kev rho tawm thiab kev ntxuav cov protein kho mob, kev sib cais cov tshuaj sib xyaw, thiab kev tswj xyuas zoo ntawm cov khoom lag luam tshuaj.
d) Kev Tshuaj Xyuas Ib Puag Ncig: Cov txheej txheem centrifugation kuj siv rau hauv kev tshuaj xyuas ib puag ncig los kawm txog cov dej, av, thiab huab cua. Los ntawm kev cais cov tshuaj sib txawv uas muaj nyob hauv cov qauv no, cov kws tshawb fawb tuaj yeem txheeb xyuas cov pa phem, kawm txog cov kab mob me me, thiab soj ntsuam kev noj qab haus huv ib puag ncig.
e) Kev Tshawb Fawb DNA: Cov tshuab centrifuges yog cov cuab yeej tseem ceeb hauv kev tshawb fawb DNA, uas tso cai rau cov kws tshawb fawb rho tawm thiab kawm txog cov DNA molecules. Los ntawm kev cais DNA ntawm lwm cov khoom hauv lub cell, cov kws tshawb fawb tuaj yeem tshuaj xyuas nws, ua kev kuaj noob caj noob ces, thiab daws cov lus zais zais hauv peb cov noob caj noob ces.
IV. Kev nce qib hauv thev naus laus zis Centrifuge:
Tau ntau xyoo los no, kev siv tshuab centrifuge tau muaj kev vam meej ntau heev, ua rau muaj kev ua tau zoo dua thiab raug dua hauv kev cais cov tshuaj. Cov yam ntxwv tshiab suav nrog:
a) Muaj Peev Xwm Ceev: Cov tshuab centrifuge niaj hnub no muaj peev xwm tig tau ceev txog li 100,000 revolutions ib feeb (RPM). Qhov no ua rau kev sib cais ua haujlwm tau zoo dua, txo lub sijhawm ua haujlwm, thiab txhim kho cov txiaj ntsig.
b) Cov Tshuab Txias: Qee lub tshuab centrifuges muaj cov tshuab txias uas ua rau hauv, ua rau cov qauv uas rhiab heev rau qhov kub thiab txias tuaj yeem ua tiav yam tsis muaj kev cuam tshuam rau lawv qhov zoo. Cov tshuab txias no tswj qhov kub qis thaum lub sijhawm centrifugation, tiv thaiv kev puas tsuaj thiab tswj cov qauv zoo.
c) Cov Qauv Rotor Siab Tshaj Plaws: Kev tsim qauv Rotor tau hloov zuj zus los pab txhawb ntau yam ntim thiab hom qauv. Txij li cov microcentrifuges tsim rau cov qauv me me mus rau cov centrifuges loj hauv pem teb, qhov kev hloov pauv tau los ntawm ntau yam qauv rotor tso cai rau cov kws tshawb fawb ua haujlwm nrog ntau yam qauv thiab ua kom zoo dua kev sib cais.
d) Kev Ua Haujlwm Tsis Siv Neeg thiab Kev Tsim Kho Kom Zoo: Ntau lub tshuab centrifuges niaj hnub no muaj cov kev xaiv ua haujlwm tsis siv neeg siab heev, suav nrog cov txheej txheem programmable thiab cov interfaces yooj yim rau cov neeg siv. Cov yam ntxwv no ua rau kev ua haujlwm yooj yim dua, ua rau muaj kev rov ua dua, thiab ua rau muaj kev ua tiav ntau yam qauv yam tsis muaj neeg saib xyuas.
Xaus lus:
Txij li thaum tshawb nrhiav cov lus zais ntawm cov txheej txheem cellular mus rau kev kuaj mob thiab nrhiav pom cov tshuaj tshiab, centrifuges ua rau cov kws tshawb fawb muaj peev xwm cais thiab kawm cov tshuaj nrog kev ua tib zoo. Nrog lawv ntau yam kev siv thiab kev nce qib ntawm thev naus laus zis tas mus li, cov khoom siv zoo kawg no ua lub luag haujlwm tseem ceeb hauv kev tshawb fawb. Thaum peb taug kev tob dua mus rau hauv qhov tsis paub meej ntawm kev tshawb fawb, centrifuges yuav txuas ntxiv mus rau pem hauv ntej, tshawb nrhiav qhov nyuaj ntawm peb lub ntiaj teb, ib qho kev sib cais ib zaug.
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