Nyob rau hauv lub chaw muag tshuaj, sodium carboxymethylcelleculose (cmc) thiab hydmc) yog ob feem ntau siv tshuaj tshuaj thiab cov haujlwm.
Cov qauv tshuaj thiab cov khoom
CMC yog cov dej-soluble cellulose derivative tau los ntawm kev hloov pauv ib feem ntawm hydroxyl pawg ntawm cellulose rau hauv cov carboxymethyl pawg. Cov dej solubility thiab viscosity ntawm cms raws li ntawm nws cov qib ntawm qhov hnyav ntawm qhov hnyav, thiab feem ntau nws coj los ua cov neeg sawv cev zoo thiab txo qis.
HPMC tau txais los ntawm kev hloov ib feem ntawm cov pawg hydroxyl ntawm cellulose nrog methyl thiab hydroxypropropyl pawg. Piv nrog CMC, HPMC muaj qhov dav dav ua solubility, tuaj yeem yaj nyob rau hauv cov dej txias thiab dej kub, thiab ua pov thawj ruaj khov nyob rau ntawm pH qhov tseem ceeb. HPMC feem ntau siv los ua zaj duab xis yav tas los, nplaum, thickener thiab tswj tso tawm cov neeg sawv cev hauv chaw muag tshuaj.
Daim Ntawv Thov Teb
Ntsiav tshuaj
Hauv kev tsim cov ntsiav tshuaj ntau lawm, cmc yog tsuas yog siv los ua tus tsis muaj kev ua txhaum thiab nplaum. Raws li kev ua txhaum, CMC tuaj yeem nqus dej thiab swell, yog li txhawb cov ntsiav tshuaj thiab nce cov tshuaj tso tawm. Raws li cov phau ntawv, CMC tuaj yeem txhim kho cov kev kho tshuab lub zog ntawm cov ntsiav tshuaj.
HPMC yog tsuas yog siv los ua zaj duab xis yav tas los thiab tswj cov neeg sawv cev tso tawm hauv cov ntsiav tshuaj. Zaj duab xis tsim los ntawm HPMC muaj cov kev siv tshuab lub zog zoo thiab hnav tsis kam, uas tuaj yeem tiv thaiv cov tshuaj los ntawm qhov nruab nrab ntawm sab nraud. Nyob rau tib lub sijhawm, zaj duab xis tsim cov khoom ntawm HPMC kuj tseem siv tau los tswj cov tshuaj tso tawm. Los kho cov hom thiab noj ntawm HPMC, kev tso tawm los yog muab cov nyhuv tso tawm tuaj yeem ua tiav.
Tsoom qab
Nyob rau hauv capsule npaj, cmc yog tsawg dua siv, thaum HPMC yog siv dav siv, tshwj xeeb tshaj yog nyob rau hauv kev tsim cov neeg tsis noj nqaij capsules. Capsule plhaub feem ntau yog ua los ntawm gelatin, tab sis vim muaj teeb meem ntawm cov tsiaj txhu tsiaj, HPMC tau dhau los ua cov khoom xaiv zoo tagnrho. Cov tshuaj ntsiav hniav ua los ntawm HPMC tsis yog muaj cov biocompatibility zoo, tab sis kuj ua tau raws li cov neeg tuaj yeem.
Kua npaj
Vim nws cov khoom siv ua kom zoo tshaj plaws thiab cov khoom ncua tawm, CMC tau dav hauv kev npaj ua kua xws li cov kev daws teeb meem, qhov muag tso tawm thiab npaj cov ntsiab lus. CMC tuaj yeem nce viscosity ntawm cov kua tso, yog li txhim kho qhov kev ncua thiab kev ruaj khov ntawm cov tshuaj thiab tiv thaiv cov tshuaj tua yeeb.
Daim ntawv thov ntawm HPMC hauv kev npaj ua kua yog feem ntau xav hauv cov thickeners thiab emulsifiers. HPMC tuaj yeem nyob ruaj khov tshaj li ntau ntau hom thiab muaj peev xwm sib xws nrog ntau yam tshuaj tsis muaj kev cuam tshuam txog kev ua tau zoo ntawm cov tshuaj. Tsis tas li ntawd, kev ua yeeb yaj kiab zaj duab xis ntawm HPMC kuj tau siv nyob rau hauv kev npaj ua yeeb yam, xws li zaj duab xis-ua cov nyhuv tiv thaiv hauv kev poob qis.
Kev Tso Tawm Tso Tawm
Hauv kev muab kev tso tawm tso tawm, daim ntawv thov HPMC tshwj xeeb tshaj yog. HPMC muaj peev xwm tsim cov gel network, thiab tso tawm cov tshuaj tshaj ntawm cov tshuaj tuaj yeem tswj hwm los ntawm kev hloov kho cov kev xav thiab cov qauv ntawm HPMC. Cov cuab yeej no tau siv dav hauv cov ntsiav tshuaj uas tso tawm thiab kev cog hniav. Hauv kev sib piv, CMC tsawg dua siv nyob rau hauv kev tswj-tso tawm kev npaj, feem ntau yog vim tias cov qauv gel nws tsis ruaj khov li HPMC.
Kev ruaj khov thiab sib xyaw
CMC muaj cov tsis ruaj khov ntawm cov txiaj ntsig sib txawv thiab yog qhov cuam tshuam yooj yim los ntawm cov muaj kua qaub. Tsis tas li ntawd, CMC muaj kev sib raug zoo nrog qee cov khoom xyaw siv tshuaj, uas yuav ua rau cov tshuaj nag lossis tsis ua haujlwm.
HPMC qhia qhov ruaj ntseg zoo tshaj li ntau qhov ntau, tsis yooj yim cuam tshuam los ntawm kua qaub-puag, thiab muaj qhov sib txuam zoo. HPMC tuaj yeem sib haum nrog feem ntau cov khoom muaj tshuaj feem ntau yam tsis cuam tshuam nrog kev ruaj ntseg thiab kev ua tau zoo ntawm cov tshuaj.
Kev Nyab Xeeb thiab Kev Cai
Ob CMC thiab HPMC tau txiav txim siab muaj kev nyab xeeb tshuaj thiab tau pom zoo rau kev siv hauv Pharmgophoeias thiab cov koom haum tswj hwm hauv ntau lub tebchaws. Txawm li cas los xij, thaum siv, CMC yuav ua rau qee qhov kev tsis haum tshuaj lossis kev ua xua tsis haum, thaum HPMC tsis tshua ua rau muaj kev cuam tshuam tsis zoo.
CMC thiab HPMC muaj lawv tus kheej cov txiaj ntsig hauv cov ntawv thov tshuaj. CMC encepies Qhov tseem ceeb hauv kev npaj kua vim tias nws cov khoom siv qeeb heev, thaum HPMC tau siv dav hauv nws cov yeeb yaj kiab zoo heev thiab tswj-tso tawm cov khoom. Kev xaiv ntawm cov chaw npaj khoom yuav tsum yog nyob ntawm cov tshuaj tshwj xeeb thiab kev xav tau, kev nkag siab ntawm ob qho tib si, thiab xaiv cov kev tsim nyog tshaj plaws.
Lub Sijhawm Post: Jul-19-2024