Imveliso yobungcali yokwahlulahlula i-centrifuge kunye nomenzi woomatshini bamayeza - iZonelink

i-centrifuge isetyenziselwa ukwahlula i-DNA kwi-DNA

2023-08-04

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I-Centrifuge: Isixhobo Esiguqukayo Sokwahlulwa kwe-DNA

Intshayelelo

Kuphando lwanamhlanje lwebhayoloji nolwezonyango, ukukhutshwa kwe-DNA kudlala indima ebalulekileyo. Izazinzulu zifuna i-DNA ecocekileyo nengonakalanga ukuze zifunde iimpawu zemfuza, ziphuhlise amayeza okunyanga, kwaye ziqonde izifo ezahlukeneyo. Esinye isixhobo esibalulekileyo kule nkqubo yi-centrifuge. Esi sixhobo sisebenzisa amandla e-centrifugal ukwahlula i-DNA kwezinye izinto zeseli, okwenza abaphandi bafumane izinto zemfuza ezicocekileyo. Kweli nqaku, siza kuphonononga ihlabathi elinomdla le-centrifuge kwaye sihlolisise indlela ezinegalelo ngayo ekuqhubekeni kophando lwe-DNA.

Ukuqonda i-Centrifugation

I-Centrifugation yindlela esetyenziswa kakhulu kwi-biology nakwi-biotechnology ukwahlula imixube ngokusekelwe kumahluko kubuninzi bee-particle. I-centrifuge ifumana ukwahlukana ngokusebenzisa amandla amakhulu omxhuzulane kumxube, nto leyo ebangela ukuba ii-particles ezixineneyo zibe yi-sediment okanye zintante. Le nkqubo ifana nomdaniso we-whirlwind apho amandla asebenza khona kumxube, eqhuba ii-particles zobunzima obahlukeneyo kwiindawo ezahlukeneyo.

Ukusebenzisa iCentrifugation yoKwahlula iDNA

I-DNA, enemicu yayo emide nedibeneyo, ifuna ukuphathwa ngononophelo ngexesha lokuzahlula. I-Centrifugation ibonelela ngendawo elawulwayo yale nkqubo yokwahlukanisa. Ngoluhlu lwemijikelezo echanekileyo, i-centrifuge yahlula iimolekyuli ze-DNA kwezinye izinto zeseli ezifana neeproteni, ii-lipids, kunye ne-RNA, ivumela abaphandi ukuba bafunde iimpawu zayo ezikhethekileyo.

Ukubaluleka koKwahlulwa kweDNA

I-DNA, isicwangciso sobomi, iphethe isitshixo sokuqhubela phambili isayensi okungenakubalwa. Nokuba kuhlolisiswa iimpucuko zamandulo ngokusebenzisa izisele zezinto zakudala okanye kuphuhliswa amayeza obuqu, ubunyulu kunye nomgangatho we-DNA ekhutshiweyo zibalulekile. I-Centrifugation idlala indima ebalulekileyo ekufumaneni le sampuli ye-DNA ecocekileyo, ngaloo ndlela ivumela abaphandi ukuba bangene nzulu kwiimfihlo zeseli.

Iintlobo zeeCentrifuges

IiCentrifuge ziza ngeentlobo ezahlukeneyo, nganye yenzelwe iinjongo ezithile zophando. Ezi zixhobo zihlelwe ngokubanzi njenge-ultracentrifuges, i-microcentrifuges, kunye ne-preparative centrifuges, zihlangabezana neemfuno ezahlukeneyo zophando lwesayensi.

Ii-Ultracentrifuges

Ii-Ultracentrifuges, njengoko igama lisitsho, zisebenza ngesantya esiphezulu kakhulu, zivumela ukwahlukana kwamasuntswana amancinci kune-micrometer. Zikwazi ukufikelela kumandla angaphezu kwama-500,000 amandla omxhuzulane, ii-ultracentrifuges zibalulekile ekufundeni izakhiwo ze-subcellular kunye nokwahlulahlula iisampulu ze-DNA ezibuthathaka.

Ii-Microcentrifuges

Ii-Microcentrifuge, ezinomlinganiselo omncinci, zezona zisebenzayo kwiilabhoratri ezininzi zophando. Ezi centrifuge ziyakwazi ukufikelela kumandla afikelela kwi-20,000 yamandla omxhuzulane, nto leyo ezenza zilungele ukutsalwa kwe-DNA rhoqo apho iisampulu ezincinci zanele khona.

IiCentrifuge zokulungiselela

Yenzelwe iivolumu ezinkulu, ii-centrifuge zokulungiselela ziyasetyenziswa xa kuthathwa ubungakanani obukhulu be-DNA. Olu hlobo lwe-centrifuge luvumela ukucutshungulwa kweevolumu ezinkulu zesampulu, nto leyo eyenza ukuba ifaneleke kwizicelo zoshishino ezifuna ukukhutshwa kwe-DNA eninzi, njengokulandelelana kwe-DNA okanye uhlalutyo lwe-forensic.

Inkqubo yoKwahlulwa kweDNA

Ukufumana i-DNA ecocekileyo nge-centrifugation kubandakanya amanyathelo aliqela abalulekileyo:

1. Ukulungiselela iSampulu: Inyathelo lokuqala libandakanya ukwahlulwa kwezinto eziphilayo eziphethe i-DNA enomdla. Oku kungaba ligazi, izicwili, okanye nawuphi na omnye umthombo weseli oqulethe izinto zemfuza ekujoliswe kuzo.

2. I-Lysis yeeSeli: Ukuze kukhutshwe i-DNA, iiseli ziyaphazamiseka kwaye ii-membrane zazo zaphuke, okuvumela ukuba i-DNA ikhutshwe ibe sisisombululo. Le nkqubo ibandakanya ukusetyenziswa kwezisombululo ezithile ze-buffer ezikhusela i-DNA ekuwohlokeni.

3. Ukucoca nge-Centrifuge: Isampuli elungisiweyo ifakwa kwityhubhu ye-centrifuge, kwaye emva kokulungisa iiparameter ezifanelekileyo, i-centrifuge iqalisa ukusebenza. Ukujikeleza kudala amandla amakhulu okutsala, okubangela ukuba amasuntswana ahlukane ngokusekelwe kubuninzi bawo. Ekuhambeni kwexesha, amasuntswana e-DNA axineneyo anyibilika aye ezantsi kwityhubhu, eshiya ezinye izinto ezingaphezulu.

4. Ukuqokelelwa kwe-DNA: Nje ukuba inkqubo ye-centrifugation igqityiwe, ulwelo olungaphezulu kwe-DNA pellet lususwa ngononophelo, kushiyeke kuphela ii-sediments ze-DNA ezixabisekileyo. Emva koko i-DNA ixhonywa kwi-buffer efanelekileyo, ukuqinisekisa uzinzo lwayo kunye nokufaneleka kwayo kuhlalutyo olulandelayo.

Isiphelo

Amandla amangalisayo e-centrifuge okwahlula i-DNA kwezinye izinto zeseli atshintshe uphando lwezakhi zofuzo. Ngokusebenzisa i-centrifugation, izazinzulu zifumana ukufikelela kwisampulu ye-DNA ecocekileyo, ebalulekileyo ekuqondeni iimpawu zezakhi zofuzo, ekuphuhliseni iindlela zonyango, nasekufundeni izifo ezahlukeneyo. Njengoko ubuchwepheshe buqhubela phambili, i-centrifuge iyaqhubeka nokukhula, iphucula ukusebenza kakuhle kunye nesantya sokwahlulwa kwe-DNA. Ngokuphumelela ngakunye, sisondela ekuvuleni iimfihlakalo ezifihliweyo kwimicu ye-DNA kwaye siguqule ukuqonda kwethu ubomi ngokwabo.