I-Nanotechnology ku-Pharmacy
I-nanotechnology ishintshe imikhakha ehlukahlukene yesayensi, okuhlanganisa nemithi. Njengoba izinhlayiya zincane kakhulu kunezinwele zomuntu, i-nanotechnology ivula umnyango wezinto ezintsha ezazingacatshangwa ngaphambili. Emkhakheni wemithi, i-nanotechnology inamandla amakhulu okuthuthukisa ukusebenza kahle kokwelapha, ukunciphisa imiphumela emibi, kanye nokunikeza izixazululo ezinseleleni zezokwelapha eziyinkimbinkimbi. Lesi sihloko sizohlola izici ezahlukahlukene zokusetshenziswa kwe-nanotechnology kwemithi, kusukela ekuthuthukisweni kwemithi kuya ekuxilongweni kwezokwelapha.
Ukuthuthukiswa Kwezidakamizwa Nge-Nanotechnology
Enye yezindlela eziyinhloko zokusebenzisa ubuchwepheshe be-nanotechnology kwezemithi ukuthuthukiswa kwemithi esekelwe ku-nanoparticle. Ama-nanoparticles angathonya izakhiwo ze-pharmacokinetic kanye ne-pharmacodynamic zemithi, njengokumunca, ukusatshalaliswa, i-metabolism, kanye nokukhishwa kwayo, ngaleyo ndlela kwandise ukusebenza kahle kokwelapha. Isibonelo, imithi yomdlavuza efakwe ku-nanoparticles ingaqondiswa ngqo, ikhulule isithako esisebenzayo ngqo kumaseli omdlavuza futhi inciphise umonakalo ezicutshini ezinempilo.
Ezinye izinhlobo zama-nanoparticles ezivame ukusetshenziswa ekuthuthukisweni kwemithi zifaka phakathi ama-liposomes, ama-dendrimers, kanye nama-polymeric nanoparticles. Ama-liposomes, izakhiwo ze-vesicular ezakhiwe nge-lipid bilayer, angavikela izithako ezisebenzayo ekuwohlokeni ngaphambi kokuba afinyelele ekuhlosweni kwawo. Ama-dendrimers, afana nezihlahla ezinamagatsha amaningi, anikeza umthamo omkhulu wokulayisha kanye nekhono lokuguqulwa ngamakhemikhali. Ama-polymeric nanoparticles, okwamanje, angakhiwa futhi aguqulwe ngokukhethekile ukuze ahlangabezane nezidingo ezithile.
Ukulethwa Kwezidakamizwa Okuhlosiwe
Ikhono lokuletha imithi ngqo ezindaweni eziqondiwe lingenye yezinzuzo ezibalulekile ze-nanotechnology kwezokwelapha. Ngokusebenzisa ama-nanoparticles, imithi ingaklanywa ukuze igweme amasosha omzimba futhi ithuthukise ukungena kwamaseli aqondiwe. Le ndlela, eyaziwa ngokuthi "ukulethwa kwemithi okuqondiwe," inamandla amakhulu ekwelapheni izifo ezingamahlalakhona ezifana nomdlavuza, i-HIV, kanye nezifo eziwohlokayo.
Ama-nanoparticles angasetshenziswa ngama-ligand akhethekile kuma-receptor ebusweni bamaseli aqondiwe. Isibonelo, ukusebenzisa ama-antibodies njengama-ligand kuvumela ama-nanoparticles ukuthi aqaphele futhi abophe amangqamuzana athile omdlavuza. Ngenxa yalokho, umuthi ohlanganisiwe ungakhishwa ngqo kumaseli omdlavuza, kuncishiswe ukulimala kwamangqamuzana anempilo futhi kuncishiswe imiphumela emibi.
Ukuxilonga kanye nokuthwebula izithombe
Ngaphezu kwendima yayo njengethuluzi lokulethwa kwezidakamizwa, ubuchwepheshe be-nano budlala indima ebalulekile ekuthuthukisweni kwamathuluzi okuxilonga nawokuthwebula izithombe. Ama-nanoparticles asebenzayo angasetshenziswa ukuthola ama-molecule e-biomarker yesifo esiteji sokuqala, ukuthuthukisa ukunemba kokuxilonga nokunciphisa isidingo sezinqubo zokuhlasela.
Isibonelo esisodwa sokusetshenziswa kwama-nanoparticles ekufomeni izithombe ukusetshenziswa kwama-quantum dots, ama-semiconductor nanoparticles akhipha ukukhanya ngamandla ahlukahlukene lapho ekhanyiswa. Ama-quantum dots angashintshwa ukuze aqaphele ama-biomarker molecule athile, njengeprotheni ekhiqizwa amangqamuzana omdlavuza, okuvumela ukutholakala kusenesikhathi kanye nokuqapha ukuqhubeka komdlavuza.
Ama-nanoparticles e-Ferrite, aqukethe i-iron oxide, nawo avame ukusetshenziswa ekucabangeni kwe-magnetic resonance (MRI). Ngokusebenzisa amasimu kazibuthe, lawa ma-nanoparticles angakhiqiza ukungafani kwesithombe okuthuthukisiwe, okusiza odokotela ukuthi babone futhi bathole amathumba ngokunemba okukhulu.
I-Nanotechnology ekwelashweni kwezakhi zofuzo
Ukwelashwa ngezakhi zofuzo kuyindlela entsha yokwelapha ehlose ukulungisa noma ukufaka esikhundleni izakhi zofuzo ezinephutha. I-nanotechnology inikeza izinhlelo zokulethwa ezisebenzayo zezinto zofuzo, njenge-DNA, i-RNA, noma i-CRISPR-Cas9. Isibonelo, ama-nanoparticles e-lipid angasetshenziswa ukuhlanganisa izinto zofuzo, azivikele ekuwohlokeni futhi enze kube lula ukungena kwazo kumaseli aqondiwe.
Enye intuthuko ebalulekile kulo mkhakha ukuthuthukiswa kwama-nanoparticles asekelwe ku-liposome, asetshenziswe ekwelashweni kwezakhi zofuzo okusekelwe ku-RNA encane ephazamisayo (i-siRNA) ekwelapheni izimo ezahlukahlukene zezakhi zofuzo. I-nanotechnology ivumela i-siRNA ukuthi ihanjiswe ngqo kumaseli aqondiwe, icindezela ukubonakaliswa kwezakhi zofuzo ezithile ezihlobene nezifo futhi inciphise ingozi yemiphumela emibi.
Umthethonqubo Nokuphepha
Naphezu kwamandla amakhulu e-nanotechnology kwezemithi, kusenezinselele zokuphepha kanye nokulawula. Ama-nanoparticles asetshenziswa emithini nasekuxilongweni kumele ahlolwe ngokucophelela ukuqinisekisa ukuthi awabangeli imiphumela enobuthi emzimbeni womuntu. Kudingeka imithetho eqinile ukuqinisekisa ukuthi imikhiqizo ye-nanotechnology ihlangabezana nezindinganiso zokuphepha kanye nokusebenza kahle ngaphambi kokungena emakethe.
Izikhungo ezilawulayo ezifana ne-Food and Drug Administration (FDA) kanye ne-European Medicines Agency (EMA) zithuthukise iziqondiso ezithile zokuhlola imikhiqizo esekelwe ku-nanotechnology. Lokhu kufaka phakathi ukuhlola izingozi zobuthi, ukuhambisana kwezinto eziphilayo, kanye nokuqina komkhiqizo. Izivivinyo zemitholampilo kumele futhi zifake ukuhlaziywa kwesikhathi eside ukuqinisekisa ukuthi ukusetshenziswa kwe-nanoparticle akubangeli imiphumela emibi empilweni.
Ukusungula Izinto Ezintsha kanye Nekusasa Le-Nanotechnology Yezemithi
Intuthuko ye-nanotechnology kwezemithi iyaqhubeka nokusheshisa. Ucwaningo kanye nokusungula izinto ezintsha kulo mkhakha kuyaqhubeka nokufuna izindlela zokuthuthukisa ikhwalithi yokuphila kweziguli. Isibonelo, ama-bio-nanosensors athuthukiswa ukuze kuqashwe impilo ngesikhathi sangempela, okwenza kube lula ukuthola izinguquko ze-pathophysiological emzimbeni kusenesikhathi futhi kuhlinzekwe ngezimpendulo zokwelapha ezisheshayo nezinembile.
Emkhakheni wezokwelapha ezenzelwe umuntu ngamunye, i-nanotechnology ivumela ukuthuthukiswa kwezindlela zokwelapha ezenzelwe iphrofayili yezakhi zofuzo zomuntu ngamunye. Lokhu kungenza ngcono ukusebenza kahle kokwelashwa futhi kunciphise ingozi yemiphumela emibi. Ekugcineni, umbono wesikhathi esizayo we-nanotechnology yezokwelapha ukudala izixazululo zokwelapha eziphephile, ezisebenza kahle, nezisebenza kahle kakhulu ngendlela ehlanganisiwe neyomuntu siqu.
Isiphetho
I-nanotechnology ivule amathuba amasha emhlabeni wezokwelapha, iletha izinto ezintsha ezivumela ukuthuthukiswa kwemithi esebenza kahle kakhulu, izindlela zokulethwa kwemithi eziqondiswe kakhulu, kanye namathuluzi okuxilonga anembe kakhudlwana. Ngokusebenzisa i-nanotechnology, izinselele zezokwelapha eziyinkimbinkimbi azisabonakali zingenakwenzeka ukuzinqoba. Kodwa-ke, izici zokuphepha nezokulawula zihlala zibalulekile ukuqinisekisa ukuthi imikhiqizo ye-nanotechnology iphephile futhi isebenza kahle ekusetshenzisweni kwabantu. Ikusasa le-nanotechnology kwezokwelapha liyathembisa kakhulu, ngocwaningo oluqhubekayo kanye nokusungula izinto ezintsha okuhloswe ngalo ukuvula amathuba okwelashwa okungcono nokwenziwe ngokwezifiso.
