uhlobo luni lwezingxube ezingahlukaniswa nge-centrifugation

1. Isingeniso ku-Centrifugation kanye nezicelo zayo

2. Ukuhlukanisa Izingxube Ezifanayo Ukusebenzisa I-Centrifugation

3. Amasu Okushintshanisa I-Centrifugation Yezingxube Ezingafani

4. Ukufakwa kwe-Centrifugation Ezindaweni Zezimboni: Kusukela Kwezemithi Kuya Ekucubungulweni Kokudla

5. Intuthuko kubuchwepheshe be-Centrifugation

Isingeniso ku-Centrifugation kanye nezicelo zayo

I-Centrifugation iyindlela esetshenziswa kabanzi emkhakheni wesayensi kanye nemboni yokuhlukanisa izingxenye ezahlukene zezingxube ngokusekelwe ekubuneni kwazo. Ngokujikelezisa isampula ngokushesha ngesivinini esikhulu, i-centrifugation isebenzisa izimiso zamandla adonsela phansi kanye namandla e-centripetal ukuhlukanisa izingxube zibe yizingxenyana ezihlukile. Kusukela ekuhlanzweni kwamasampula ezinto eziphilayo kuya ekuhlukanisweni kwemikhiqizo ehlukahlukene yezimboni, i-centrifugation ibonakale iyithuluzi elibalulekile emikhakheni eminingi.

Ukuhlukanisa Izingxube Ezifanayo Ukusebenzisa I-Centrifugation

Izingxube ezifanayo, lapho izingxenye zisakazwa khona ngokulinganayo, zidinga amasu athile okuhlukanisa ukuze kuhlukaniswe. Enye indlela evame ukusetshenziswa i-differential centrifugation, esebenzisa izinyathelo eziningi zokuhlukanisa ngesivinini esihlukahlukene ukuze kuhlukaniswe izinhlayiya ngokusekelwe kubukhulu bazo kanye nobuningi bazo. Ngokwandisa ijubane kancane kancane, izinhlayiya ezincane ziyathunqa kuqala, kushiye izinhlayiya ezinkulu phezulu. Le ndlela ivame ukusetshenziswa ocwaningweni lwe-biochemical ukuhlukanisa ama-organelle kumaseli noma izingxenye ezihlukene zamaseli.

Ngakolunye uhlangothi, i-centrifugation ye-density gradient ihlukanisa izinhlayiya ngokusekelwe ekubuthweni kwazo. Ngokudala i-concentration gradient kusetshenziswa isisombululo esiqinile (njenge-sucrose) ngaphansi kwezinhlayiya ezikhanyayo, isampula ibekwa ngaphezulu kwayo. Uma i-centrifuged, izinhlayiya zihamba nge-gradient zize zifinyelele ukulingana endaweni enqunywe yi-density yazo. Le ndlela ivumela ukuhlukaniswa kwama-nucleic acid, amaprotheni, nezinye izingxenye ezikhona kumasampula ebhayoloji.

Amasu Okushintshanisa I-Centrifugation Yezingxube Ezingafani

Izingxube ezingafani, eziqukethe izingxenye ezihlukile ezibonakalayo, zingahlukaniswa kusetshenziswa amasu ahlukene okuhlanganisa i-centrifugation. I-centrifugation yokuhlanganisa i-sedimentation ivame ukusetshenziswa kulezi zingxube. Njengoba igama lisikisela, le ndlela ihilela ukuthulula izinhlayiya ngokusekelwe ekubuneni kwazo. Izinhlayiya ezisindayo zihlala phansi kwepayipi le-centrifuge kuyilapho izingxenye ezilula zihlala ku-supernatant.

Kwezinye izimo, izingxube ezingafani zingahlukaniswa kusetshenziswa inqubo ebizwa ngokuthi i-filtration centrifugation noma i-screen centrifugation. Le ndlela isebenzisa indlela yokuhlunga, njengesihlungi, ukugcina izinhlayiya ezinkulu ngenkathi ivumela izinhlayiya ezincane ukuthi zidlule. Ngokusebenzisa umehluko wobukhulu bezinhlayiya, i-filtration centrifugation ihlukanisa ngempumelelo izingxenye ngokusekelwe kubukhulu bazo. Le ndlela ithole ukusetshenziswa ekwelashweni kwamanzi amdaka, ekukhiqizweni kwemithi, nakwezinye izimboni ezahlukahlukene.

Ukufakwa kwe-Centrifugation Ezindaweni Zezimboni: Kusukela Kwezemithi Kuya Ekucubungulweni Kokudla

Ukuxuba i-centrifugation kudlala indima ebalulekile ezimbonini ezahlukene, okuhlanganisa nemithi, ubuchwepheshe be-bio, kanye nokucubungula ukudla. Emkhakheni wemithi, ukusebenzisa i-centrifugation kuvame ukusetshenziswa ekutholakaleni kwemithi, ekukhiqizweni kwemithi yokugoma, kanye nasekuhlukaniseni izithako ezisebenzayo. Kusiza ekuhlanzeni amakhemikhali nokususa ukungcola, okuqinisekisa ukukhiqizwa kwemithi ephephile nesebenzayo.

Emkhakheni we-biotechnology, i-centrifugation ibalulekile ekulandeleni i-DNA, ukuhlanzwa kwamaprotheni, kanye nokusetshenziswa kwamasiko amaseli. Ngokuhlukanisa izingxenye ezahlukene zamaseli, i-centrifugation ivumela abacwaningi ukuthi batadishe futhi bahlaziye ama-biomolecule athile, okusiza ezindaweni ezifana nocwaningo lwezakhi zofuzo kanye nokuthuthukiswa kwemithi.

Embonini yokucubungula ukudla, i-centrifugation isetshenziselwa ukucacisa, ukuhlanza, kanye nokugxilisa uketshezi. Isetshenziswa kakhulu ekukhiqizeni amajusi ezithelo, amafutha adliwayo, imikhiqizo yobisi, kanye nophuzo oludakayo. Ama-centrifuge asiza ukususa izinhlayiya ezingafuneki, ahlukanise uketshezi ezintweni eziqinile, futhi athuthukise ikhwalithi iyonke yomkhiqizo wokugcina.

Intuthuko kubuchwepheshe be-Centrifugation

Eminyakeni edlule, ubuchwepheshe bokusebenzisa i-centrifugation buthuthuke kakhulu, okuholele emiphumeleni yokuhlukanisa esebenza kahle futhi enembile. Ukwethulwa kwama-centrifuge asheshayo, anamandla aphezulu kushintshe kakhulu insimu, okwenza abacwaningi bakwazi ukucubungula inani elikhulu lamasampula ngezikhathi ezimfushane.

Ngaphezu kwalokho, intuthuko ekuklanyweni kwe-centrifuge iholele ekuthuthukisweni kwezinhlelo ezikhethekile zezinhlelo ezithile. Isibonelo, ama-microcentrifuge aklanyelwe amasampula amancane, kuyilapho ama-ultracentrifuge ekwazi ukufinyelela isivinini esiphezulu kakhulu, okwenza kube lula ukuhlukaniswa kwezingxenye ezingaphansi kweseli kanye nama-macromolecule.

I-Centrifugation nayo izuze ekuthuthukisweni kwezinhlelo zokwenza izinto ngokuzenzakalelayo kanye nokulawula, okuvumela ukunemba okuthuthukisiwe kanye nokuphindaphindeka. Ama-centrifuge esimanje afakwe izixhumi ezisebenziseka kalula, izilungiselelo ezihlelekayo, kanye nezici zokuphepha, okwenza zifinyeleleke kubasebenzisi abaningi emikhakheni eyahlukahlukene.

Ekuphetheni, i-centrifugation iyindlela eguquguqukayo yokuhlukanisa izingxube ngokusekelwe ekubuneni kwazo. Kusukela ekuhlukaniseni izingxube ezifanayo kusetshenziswa i-differential kanye ne-density gradient centrifugation kuya ekuhlukaniseni izingxube ezahlukene kusetshenziswa i-sedimentation kanye ne-filtration centrifugation, le ndlela ithole ukusetshenziswa kabanzi emikhakheni yesayensi neyezimboni. Ngokuthuthuka okuqhubekayo ekwakhiweni nasekubuchwephesheni kwe-centrifuge, ikusasa le-centrifugation linamandla amakhulu okuthuthukisa amakhono okuhlukanisa kanye nokukhiqiza okuthuthukisiwe.