Cov neeg hais txog cellulose tau siv dav hauv kev lag luam kws tshuaj, thiab tshuaj lom neeg ua rau lawv tseem ceeb ntawm ntau yam kev npaj tshuaj.
1. Kev tswj hwm thiab txhawb nqa kev tso tawm
Cellulose muaj kev hais ua neeg muaj kev pab hais tias, xws li hydroxyprropylulose (HPMC) thiab sodium carboxymethyl cellulose (feem ntau siv los tswj cov tshuaj tso tawm. Lawv tuaj yeem tsim cov txheej gel kom txuas ntxiv cov tshuaj tso tawm los ntawm kev tswj hwm lub diffulation tus nqi thiab cov tshuaj tsawg kawg. Los ntawm kev siv cellulose muaj kev muaj kev hais nrog kev sib txawv thiab cov tshuaj sib txawv, yog kev txhim kho tshuaj muaj txiaj ntsig thiab txo qhov ntau zaus ntawm kev noj tshuaj.
2. Ua cov tsiav tshuaj thiab cov ntsiav tshuaj
Cellulose hais ua neeg ua si lub luag haujlwm tseem ceeb hauv kev tsim cov txheej txheem ntawm cov ntsiav tshuaj thiab cov ntsiav tshuaj ua cov neeg sawv cev thiab cov neeg sawv cev. HPMC thiab CMC-NA feem ntau siv los ua cov hlua khi rau cov ntsiav tshuaj raws nraim vim lawv cov kua zoo thiab kev hloov kho kom haum. Lawv tuaj yeem nce lub hardness thiab tawv ntawm cov ntsiav tshuaj, txhim kho cov ntsiav tshuaj, txhim kho cov tshuab ua hluav taws xob, thiab ua kom cov ntsiav tshuaj kom zoo ntawm cov ntsiav tshuaj.
3. Thickeners thiab stabilizers
Cov neeg muaj kev hais ua neeg raug siv tau siv ua cov thickeners thiab stabilizers hauv kev npaj kua. Lawv tuaj yeem nce viscosity ntawm kev daws teeb meem thiab txhim kho kev ncua ntawv thiab kev ruaj khov ntawm cov tshuaj. Piv txwv li, CMC-NA feem ntau siv nyob rau hauv kev ncua kev ncua thiab cov tshuaj pleev cov tshuaj pleev kom tiv thaiv cov tshuaj yeeb yaj kiab thiab stratification ntawm cov khoom xyaw thiab kev ruaj khov ntawm kev npaj.
4. Enteric Txheej Ntawv
Qee cov cellulose muaj kev hais ua neeg muaj kev pab, xws li Ethylulose (EC), feem ntau siv hauv cov khoom siv txheej enteric vim lawv lub siab ntev rau acidic ib puag ncig. Cov txheej txheem nkag mus tuaj yeem tiv thaiv cov tshuaj los ntawm kev rhuav tshem hauv plab hnyuv thiab tso cov tshuaj hauv txoj hnyuv. Qhov no tuaj yeem tiv thaiv cov tshuaj los ntawm kev puas tsuaj hauv lub plab thiab txhim kho cov xyoob ntoo ntawm cov tshuaj.
5. Cov ntaub ntawv bio
Cellulose muaj kev hais ua ke muaj peev xwm ua raws li cov tshuaj lom neeg muaj peev xwm ua rau lawv tseem ceeb hauv kev npaj ntawm biollhesive npaj. Kev npaj ua kom muaj cov tshuaj lom neeg rau lub sijhawm ntev ntawm cov tshuaj ntawm qhov chaw thiab nce cov tshuaj hauv zos, yog li txhim kho cov tshuaj. Piv txwv li, HPMC feem ntau siv nyob rau hauv ophthalmic npaj thiab qhov ncauj mucosal npaj, uas tuaj yeem nce lub sijhawm nyob ntawm cov tshuaj nyob rau hauv ovular nto thiab qhov ncauj mucosa.
6. Txheej ntaub ntawv
Cov neeg hais txog cellulose feem ntau siv ua txheej txheej txheej los tswj cov yam ntxwv tso tawm thiab txhim kho cov tshuaj ruaj khov. Cellulose ethers tsho tiv thaiv cov tshuaj ntawm ib puag ncig sab nraud, xws li noo noo thiab oxygen, thiab txuas rau lub neej txee ntawm cov tshuaj. Tsis tas li ntawd, los ntawm kev kho cov txheej txheej txheej thiab cov qauv, cov tshuaj tuaj yeem tso tawm ntawm lub sijhawm ruaj khov thiab hauv hom phiaj.
7. Txhim Kho thiab Cov Neeg Sawv Cev Ncauj Lus
Hauv qee qhov kev npaj tshuaj txuj ci, cov tshuaj uas muaj kev hais txog cellulose tuaj yeem siv los ua cov khoom siv ua kom zoo dua thiab cov neeg sawv cev kom ua tau zoo los txhim kho cov kev ua tau zoo thiab kev ruaj khov ntawm cov tshuaj. Piv txwv li, hauv cov tshuaj txhaj thiab cov kev tsis muaj peev xwm ntawm cellulose tuaj yeem tiv thaiv kev ua yeeb yaj kiab thiab txhim kho kev sib xyaw thiab kev ruaj ntseg ntawm cov tshuaj tov tshuaj.
8. Kev Ua Haujlwm Zoo
Cov cellulose muaj kev hais kom siv los npaj cov tshuaj ua kom zoo, xws li cov ntsiav tshuaj nrawm thiab cov ntsiav tshuaj kom raug tshem tawm. Cov kev zam no tuaj yeem hloov kho cov tshuaj thiab tso tawm cov yam ntxwv ntawm cov tshuaj, txhim kho cov tshuaj thiab tus neeg mob ua tsaug. Piv txwv li, HPMC tau siv dav los npaj cov ntsiav tshuaj sai-dissolving, uas tuaj yeem sai sai tom qab sib cuag nrog dej, ua rau nws mob yooj yim.
9. biocompatibility thiab kev nyab xeeb
Cellulose ether muaj zoo biocompatibility thiab kev nyab xeeb, thiab tuaj yeem yog cov tshuaj tsis zoo hauv lub cev, txo cov kev mob tshwm sim rau tib neeg lub cev. Yog li ntawd, cellulose ether yog siv dav hauv kev lag luam kev lag luam thiab tau dhau los ua kev zam zoo rau ntau yam tshuaj npaj.
Daim ntawv thov ntawm cellulose ether hauv cov tshuaj lag luam uas tswj tau pom kev, cov ntaub ntawv tso tawm, cov ntaub ntawv sau cia, cov khoom siv roj biollhes Nws cov khoom siv lub cev tshwj xeeb thiab tshuaj lom neeg ua rau nws muaj kev tsis taus thiab tseem ceeb hauv kev txhim kho kev tsim kho cov tshuaj siv tshuaj thiab kev txhim kho kev ua tau tshuaj.
Lub Sijhawm Post: Feb-17-2025