Tsom ntsoov rau Cellulose ethers

Dab tsi yog cov kev siv tshwj xeeb ntawm cellulose ethers hauv kev lag luam kws tshuaj?

Sustained-tso thiab tswj-tso npaj: Cellulose ethers xws li HPMC (hydroxypropyl methylcellulose) feem ntau yog siv los ua hydrogel skeleton cov ntaub ntawv nyob rau hauv sustained-tso npaj. Nws tuaj yeem tswj tau qhov tso tawm ntawm cov tshuaj hauv tib neeg lub cev kom ua tiav cov txiaj ntsig kho mob. Tsawg-viscosity qib HPMC tuaj yeem siv los ua cov nplaum nplaum, thickener thiab tshem tawm tus neeg sawv cev, thaum qib high-viscosity HPMC yog siv los npaj cov khoom sib xyaw pob txha pob txha-tso cov ntsiav tshuaj, sustained-tso capsules, thiab hydrophilic gel skeleton sustained-tso ntsiav tshuaj.

Txheej zaj duab xis-forming tus neeg sawv cev: HPMC muaj cov yeeb yaj kiab zoo, thiab cov yeeb yaj kiab tsim tau zoo ib yam, pob tshab, tawv, thiab tsis yooj yim rau kev ua raws. Nws tuaj yeem txhim kho kev ruaj ntseg ntawm cov tshuaj thiab tiv thaiv kom tsis txhob muaj xim. Qhov feem ntau concentration ntawm HPMC yog 2% mus rau 10%.

Pharmaceutical excipients: Cellulose ethers ua lub luag haujlwm tseem ceeb hauv kev npaj molding raws li cov tshuaj excipients, xws li sustained-tso pellets, skeleton sustained-release npaj, coated sustained-release npaj, sustained-tso capsules, sustained-tso tshuaj films, resin tshuaj. tso tawm npaj thiab kua sustained-tso tawm kev npaj.

Microcrystalline Cellulose (MCC): MCC yog ib hom cellulose uas tau siv dav hauv kev lag luam tshuaj, tshwj xeeb tshaj yog nyob rau hauv cov txheej txheem compression thiab qhuav granulation xws li cov menyuam compaction los npaj compressed ntsiav tshuaj lossis granules.

Bioadhesives: Cellulose ethers, tshwj xeeb tshaj yog cov nonionic thiab anionic ether derivatives xws li EC (ethylcellulose), HEC (hydroxyethylcellulose), HPC (hydroxypropylcellulose), MC (methylcellulose), CMC (carboxymethylcellulose) los yog HPMC (hydroxy biopropylmethylcellulose) siv dav hauv cov cellulose. Cov polymers no tuaj yeem siv rau hauv qhov ncauj, qhov muag, qhov chaw mos thiab transdermal bioadhesives, ib leeg lossis ua ke nrog lwm cov polymers.

Thickeners thiab Stabilizers: Cellulose derivatives yog dav siv los thicken tshuaj daws thiab dispersion systems xws li emulsions thiab suspensions. Cov polymers no tuaj yeem ua kom cov viscosity ntawm cov tshuaj uas tsis yog aqueous xws li cov organic-raws li txheej txheej. Ua kom cov viscosity ntawm cov tshuaj daws teeb meem tuaj yeem txhim kho bioavailability ntawm tshuaj pleev thiab mucosal npaj.

Fillers: Cellulose thiab nws cov derivatives feem ntau yog siv los ua cov khoom ntim hauv cov ntawv ntim khoom xws li ntsiav tshuaj thiab tshuaj ntsiav. Lawv tau sib xws nrog feem ntau lwm cov excipients, pharmacologically inert, thiab tsis zom los ntawm tib neeg plab hnyuv enzymes.

Binders: Cellulose ethers yog siv los ua binders thaum lub sij hawm granulation txheej txheem los pab cov granules tsim thiab tswj lawv kev ncaj ncees.

Cog capsules: Cellulose ethers kuj tau siv los ua cov tshuaj ntsiav, ib qho kev phooj ywg zoo ib puag ncig rau cov tsiaj los ntawm cov tshuaj ntsiav.

Cov tshuab xa tshuaj: Cellulose ethers tuaj yeem siv los tsim ntau yam kev xa tshuaj, suav nrog kev tswj-tso thiab ncua-tso tawm, nrog rau cov tshuab rau qhov chaw tshwj xeeb lossis lub sijhawm tso tshuaj.

Daim ntawv thov ntawm cellulose ethers hauv kev lag luam kws tshuaj txuas ntxiv nthuav dav, thiab nrog rau kev tsim cov ntaub ntawv tshiab thiab cov khoom ntxiv tshiab, qhov ntsuas ntawm nws cov lag luam xav tau yuav nthuav dav ntxiv.


Post lub sij hawm: Oct-31-2024
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