Hydroxypropylcellulose (HPC) ni ingirabuzimafatizo ya selile ikoreshwa cyane mu buhanga mu bya farumasi, ibiryo ndetse no kwisiga. Gukoresha muburyo bwo guhagarikwa biragaragara cyane cyane binyuze mubyimbye, gutuza no gukemura ibibazo kugirango byongere ihagarikwa ryibihagarikwa.
Ibintu shingiro bya hydroxypropylcellulose
Hydroxypropyl selulose ni selile ya nonionic selile yabonetse na hydroxypropylation ya selile naturel. Itsinda rya hydrophilique hydroxypropyl ryinjijwe muburyo bwa shimi, ritanga imbaraga nziza kandi ryiyongera mumazi. HPC ifite ibintu bikurikira:
Gukemura neza: HPC irashobora gushonga mumazi akonje kandi ashyushye, bigatanga igisubizo kiboneye kandi cyiza.
Biocompatibilité yo hejuru: HPC ifite biocompatibilité nziza nuburozi buke, bityo ikoreshwa cyane mubikorwa bya farumasi nibiribwa.
Ubushyuhe bukomeye bwumuriro: HPC ifite ubushyuhe buhanitse kandi irashobora kugumana umubyimba wacyo no gutuza mubushyuhe runaka.
Ingaruka
Imwe mumikorere yingenzi ya HPC muguhagarika ni kwiyongera. Mugushyiramo urugero rukwiye rwa HPC muguhagarikwa, ubwiza bwamazi burashobora kwiyongera cyane, bityo bikagabanya umuvuduko wo gutuza kwingingo zikomeye. Dukurikije amategeko ya Stokes, umuvuduko wo gutuza uduce duto ugereranije nubukonje bwamazi. Kubwibyo, mu kongera ubwiza bwihagarikwa, gutuza ibice bishobora gutinda neza kandi ihagarikwa ryihagarikwa rikiyongera.
Ingaruka yibyibushye ya HPC ituruka ahanini kuburemere bwayo bukabije hamwe ningaruka zo guhuza iminyururu. Iyo HPC yashongeshejwe mumazi, molekile ndende-ndende irakingura kandi igafatana hamwe mugisubizo, ikora imiterere y'urusobekerane. Uru rusobe rushobora kongera cyane ubwiza bwigisubizo, bigatuma bigora uduce duto cyane kwimuka mumazi, bityo bikazamura ituze ryihagarikwa.
Ingaruka ihamye
Urundi ruhare rukomeye rwa HPC ni ugutezimbere ihagarikwa ryihagarikwa. Usibye kuba umubyimba wacyo, HPC ifite kandi ibikorwa byiza byimikorere nubushobozi bwo gukora urwego rukingira. Molekile ya HPC irashobora kwamamazwa hejuru yibice bikomeye kugirango ikore urwego rukingira kole kugirango irinde guterana no gutuza.
Uru rupapuro rurinda ibintu rushobora guhagarika ihagarikwa binyuze mu kwanga electrostatike n'ingaruka zikomeye. Ubwa mbere, itsinda rya hydroxypropyl muri molekile ya HPC rishobora gukora imigozi ya hydrogène hamwe na molekile zamazi, bikongerera hydrophilique yubuso bwibice kandi bikazamura ikwirakwizwa ryibice mumazi. Icya kabiri, kuba iminyururu ya HPC ya molekile izakora inzitizi yumubiri hejuru yubutaka, irinde guhuza bitaziguye hagati yibi bice, bityo bigabanye kwegeranya no kugabanuka.
Solubilisation
Ingaruka ya solubilizing ya HPC muguhagarika ntishobora kwirengagizwa. Ku miti imwe n'imwe idashonga neza cyangwa ibikoresho bikora, HPC irashobora kongera imbaraga zayo mumazi ikora ingirabuzimafatizo cyangwa micelles. Itsinda rya hydroxypropyl muri molekile ya HPC rishobora gukora imikoranire idakomeye (nk'imigozi ya hydrogène cyangwa imbaraga za van der Waals) hamwe na molekile yibintu idashonga, bityo igateza imbere amazi.
Binyuze muri iyi ngaruka ya solubilisation, HPC ntishobora kongera gusa gukemuka kwibintu bidashonga neza muguhagarika, ariko kandi inatezimbere ikwirakwizwa ryayo mumazi, bikarushaho kongera ituze ryihagarikwa.
Porogaramu
Mu nganda zimiti, HPC isanzwe ikoreshwa mubikorwa bitandukanye bya farumasi nko guhagarika umunwa, inshinge, hamwe nubuvuzi bwamaso. Kurugero, muguhagarika umunwa, HPC irashobora kunoza ihagarikwa ryumutekano n’ibiyobyabwenge, ikemeza ko ibiyobyabwenge bidatuza mugihe cyo kubika, bityo bikazamura imikorere n’umutekano w’ibiyobyabwenge. Mu gutera inshinge, HPC irashobora kongera bioavailable yibiyobyabwenge no kunoza imikorere yabyo binyuze muri solubilisation.
Mu nganda z’ibiribwa, HPC ikoreshwa cyane mubicuruzwa byahagaritswe nk umutobe, ibikomoka ku mata hamwe n’ibiryo. HPC irashobora kunoza ubwiza no guhagarara kwihagarikwa, ikarinda gutuza no gutondekanya ibice bikomeye, kandi ikemeza uburinganire nuburyohe bwibicuruzwa.
Hydroxypropylcellulose igira uruhare runini mukuzamura ihagarikwa ryimikorere. Binyuze mu kubyimba kwayo, gutuza no gushonga, HPC irashobora kongera cyane ubwiza bwihagarikwa, kugabanya umuvuduko wo gutuza kwingirangingo zikomeye, gukora urwego rukingira kole kugirango ikumire uduce duto, kandi yongere imbaraga zo gukemura ibintu bidashonga neza. Iyi mitungo ituma HPC ikoreshwa cyane mubijyanye na farumasi, ibiryo na cosmetike, bigahinduka ikintu cyingenzi kugirango iterambere ryihagarikwa.
Igihe cyo kohereza: Nyakanga-21-2024