indlela ukuhlukaniswa kwe-centrifugation okusebenza ngayo

Ukuhlukaniswa kwe-Centrifugation: Ukuvula Izimfihlakalo Zokunemba Nokusebenza Kahle

Isingeniso:

Ukuhlukaniswa kwe-centrifugation kuyinqubo emangalisayo eshintshe ucwaningo lwesayensi kanye nezicelo ezahlukahlukene zezimboni. Kuhilela ukusebenzisa amandla e-centrifugal ukuhlukanisa izinhlayiya ngokusekelwe kubukhulu bazo, ubuningi, kanye nesivinini sokungcola. Le ndlela enamandla isetshenziswa kakhulu emikhakheni ehlukahlukene, kusukela ku-biochemistry kanye nemithi kuya kwisayensi yezemvelo kanye nokwelashwa kwamanzi angcolile. Kulesi sihloko, sihlola ukusebenza kwangaphakathi kokuhlukaniswa kwe-centrifugation, ukusetshenziswa kwayo, izinhlobo ezahlukene ze-centrifuge, kanye nezindlela zokusebenza kwazo.

I. Isimiso Sokuhlukaniswa Kwe-Centrifugal:

Ukuhlukaniswa kwe-centrifugation kuncike esimisweni sokuthi izinhlayiya ezisindayo zivame ukushelela ngokushesha kunezilula uma zingaphansi kwamandla e-centrifugal. Ngokuphotha ingxube ngesivinini esikhulu, izinhlayiya ezinobukhulu obuhlukene kanye nobukhulu zingahlukaniswa ngempumelelo. Amandla e-centrifugal adalwe ukunyakaza kokuphotha asunduza izinhlayiya ziye ezindongeni ze-centrifuge, okuholela ezingqimbeni ezihlukile zezinto ezihlukene.

II. Izinhlobo zama-Centrifuge:

A. I-Centrifugation Ehlukile:

I-differential centrifugation ingenye yezindlela ezisetshenziswa kakhulu ukuhlukanisa izingxenye zamaseli. Ihilela imijikelezo eminingi ye-centrifugation ngesivinini nobude obuhlukene, okuvumela ukuhlukaniswa kwezinhlayiya ezihlukile ngokusekelwe emazingeni azo okuthuthwa. Le ndlela isetshenziswa kakhulu emkhakheni webhayoloji yamaseli ukuhlukanisa ama-organelle nokuhlanza izingxenye zamaseli.

B. I-Centrifugation ye-Density Gradient:

I-centrifugation ye-density gradient centrifugation ihilela ukusebenzisa i-density gradient medium, njenge-sucrose noma i-cesium chloride, ukudala izendlalelo zobuningi ezihlukene. Isampula ibekwe phezu kwe-gradient futhi ibhekene namandla e-centrifugal. Njengoba izinhlayiya ziphuma nge-gradient, ziyahlukana zibe amabhande ahlukene ngokusekelwe ekubuneni kwazo. Le ndlela iwusizo kakhulu ekuhlukaniseni izakhiwo ezingaphansi kwamangqamuzana, njenge-ribosomes kanye namagciwane.

C. I-Ultracentrifugation:

I-Ultracentrifugation ibhekisela ekusetshenzisweni kwama-centrifuge anesivinini esikhulu angafinyelela isivinini esisukela ku-60,000 kuya ku-100,000 ngomzuzu (rpm). Ama-ultracentrifuge akhiqiza amandla amakhulu kakhulu e-centrifugal, okuvumela ukuhlukaniswa kwezinhlayiya ezincane kakhulu. Le ndlela ithola ukusetshenziswa emikhakheni efana ne-biochemistry, lapho isetshenziswa khona ukutadisha ama-molecule afana namaprotheni nama-nucleic acid.

III. Ukuhlukaniswa kwe-Centrifugation Ngokusebenzayo:

A. Imboni Yezemithi:

Ukuhlukaniswa kwe-centrifugation kudlala indima ebalulekile embonini yezemithi. Kusetshenziselwa ukuhlanza imithi, ukususa ukungcola, ukuhlukanisa amakhemikhali, nokuhlukanisa izithako ezisebenzayo. Ngokulawula ngokunembile amandla nesikhathi se-centrifugal, izinkampani zezemithi zingahlukanisa futhi zikhiphe izinto ezibalulekile ngempumelelo ezingxubeni eziyinkimbinkimbi.

B. Isayensi Yezemvelo:

Ukuhlukaniswa kwe-centrifugation kusetshenziswa kabanzi ezifundweni zemvelo kanye nokulawula ukungcola. Kusiza ososayensi ukuhlaziya amasampula enhlabathi, ukuhlukanisa ukungcola emanzini angcolile, kanye nokuhlukanisa izinhlayiya ezisemoyeni. Ngokunquma ukusatshalaliswa nokwakheka kwezinhlayiya ezahlukene, abacwaningi bathola ukuqonda ngemithombo yokungcola, ukunciphisa imiphumela emibi emvelweni.

C. Ukuhlaziywa Kwegazi:

Ukuhlolwa kwegazi okuphakathi kudlala indima ebalulekile emalabhorethri emitholampilo ukuze kuhlolwe igazi elihlukahlukene. Amasampula egazi avame ukufakwa e-centrifugation ukuze kuhlukaniswe i-plasma, i-serum, namaseli egazi ahlukene. Le nqubo ibalulekile ekuxilongeni izifo ezahlukahlukene nasekuqapheni impilo yeziguli.

IV. Izindlela Ezilandela Ukuhlukaniswa Kwe-Centrifugal:

A. Isivinini Sokuthuthwa Kwendle:

Ijubane lokuthuthwa kwezinhlayiya ku-centrifuge lithonywa kakhulu usayizi wazo kanye nobuningi bazo. Izinhlayiya ezinkulu neziqinile zithuthwa ngokushesha, zakha izendlalelo ezihlukile. Ngokulungisa amandla nesikhathi se-centrifugal, abacwaningi bangakhetha ukuhlukanisa izinhlayiya ezithile ngokusekelwe ezicini zazo zokuthuthwa.

B. Ukusheshisa Kwe-Centripetal:

Ukusheshisa kwe-centripetal kungamandla agcina izinhlayiya zihamba ngendlela eyindilinga ngaphakathi kwe-centrifuge. Kuhambisana ngqo nesikwele sejubane lokujikeleza kanye nebanga lezinhlayiya ukusuka ku-axis yokujikeleza. Ukuqonda ubudlelwano phakathi kokusheshisa kwe-centripetal kanye nejubane lokusatshalaliswa kubalulekile ekulawuleni inqubo yokuhlukanisa ngempumelelo.

C. Umklamo we-Rotor:

I-rotor ye-centrifuge idlala indima ebalulekile ekuhlukaniseni izinhlayiya kahle. Imiklamo ye-rotor ingahluka ngokuya ngokusetshenziswa, ivumela amavolumu ahlukene, osayizi bamashubhu, kanye nezidingo zesampula. Izici ezifana nokuma kwe-rotor, i-engeli, kanye nokuhambisana kwesivinini kuthonya kakhulu ukusebenza kahle kokuhlukaniswa kwe-centrifugation.

Isiphetho:

Ukuhlukaniswa kwe-centrifugation kuyindlela enamandla eye yaguqula izindawo ezahlukene zesayensi nezimboni. Ngokusebenzisa amandla amandla e-centrifugal, abacwaningi bangahlukanisa ngempumelelo izinhlayiya ezinobukhulu nobukhulu obuhlukene. Kusukela kwezokwelapha kuya kwisayensi yezemvelo kanye nokuxilongwa kwezokwelapha, ukuhlukaniswa kwe-centrifugation kuyaqhubeka nokufaka isandla ekuthuthukisweni kocwaningo kanye nobuchwepheshe. Njengoba ososayensi behlola ngokujulile ekuqondeni izindlela ezicashile ezisekela le ndlela, singalindela ukusetshenziswa okusha kakhulu kanye nokusebenza kahle okuthuthukisiwe esikhathini esizayo.