Cellulose, yog ib qho ntawm cov organic compounds uas muaj ntau tshaj plaws hauv ntiaj teb, pom muaj ntau daim ntawv thov hauv ntau yam lag luam vim nws cov yam ntxwv tshwj xeeb. Hauv kev lag luam tshuaj, cellulose thiab nws cov derivatives ua lub luag haujlwm tseem ceeb hauv cov txheej txheem xa tshuaj, cov tshuaj ntsiav, cov ntaub qhwv qhov txhab, thiab ntau ntxiv.
1. Cov khoom siv sib txuas hauv cov qauv ntsiav tshuaj:
Cov cellulose derivatives xws li microcrystalline cellulose (MCC) thiab hmoov cellulose ua haujlwm ua cov khoom khi zoo hauv cov qauv tshuaj. Lawv txhim kho qhov sib koom ua ke thiab lub zog ntawm cov tshuaj, ua kom ntseeg tau tias cov tshuaj faib tawm sib npaug thiab cov qauv tso tawm sib xws.
2. Ua kom tawg ua tej daim me me:
Cov cellulose derivatives xws li croscarmellose sodium thiab sodium carboxymethyl cellulose (NaCMC) ua haujlwm ua cov khoom tawg hauv cov ntsiav tshuaj, ua rau cov ntsiav tshuaj tawg sai sai thaum kov cov kua dej. Cov yam ntxwv no ua rau cov tshuaj yaj thiab bioavailability zoo dua.
3. Cov Txheej Txheem Tswj Xyuas Kev Xa Tshuaj:
Cov cellulose derivatives yog cov khoom tseem ceeb hauv cov tshuaj tswj kev tso tawm. Los ntawm kev hloov kho cov qauv tshuaj lossis qhov loj ntawm cov cellulose, cov qauv tso tawm tshuaj uas kav ntev, ntev dua, lossis tsom mus rau qhov twg tuaj yeem ua tiav. Qhov no tso cai rau kev xa tshuaj zoo tshaj plaws, txo qhov zaus ntawm kev noj tshuaj, thiab txhim kho kev ua raws li tus neeg mob.
4. Cov Khoom Siv Txheej:
Cov tshuaj cellulose derivatives xws li ethyl cellulose thiab hydroxypropyl methylcellulose (HPMC) feem ntau yog siv ua zaj duab xis rau cov ntsiav tshuaj thiab cov granules. Lawv muab ib qho kev tiv thaiv, npog cov saj tsis zoo, tswj cov tshuaj tso tawm, thiab txhim kho kev ruaj khov.
5. Tus Neeg Sawv Cev Ua Kom Tuab Thiab Ruaj Kho:
Cov cellulose ethers xws li HPMC thiab sodium carboxymethyl cellulose raug siv ua cov neeg sawv cev thickening thiab stabilizing hauv cov kua tshuaj xws li suspensions, emulsions, thiab syrups. Lawv txhim kho viscosity, tiv thaiv kev sedimentation, thiab xyuas kom meej tias cov tshuaj faib tawm sib npaug.
6. Cov khoom xyaw hauv cov tshuaj pleev rau sab nraud:
Hauv cov tshuaj pleev ib ce xws li tshuaj pleev, tshuaj pleev, thiab tshuaj gels, cov cellulose derivatives ua haujlwm ua cov viscosity modifiers, emulsifiers, thiab stabilizers. Lawv muab cov khoom rheological xav tau, txhim kho kev nthuav dav, thiab txhawb kev lo rau ntawm daim tawv nqaij lossis cov ntaub so ntswg.
7. Cov ntaub qhwv qhov txhab:
Cov ntaub ntawv uas muaj cellulose ua, suav nrog oxidized cellulose thiab carboxymethyl cellulose, yog siv rau hauv cov ntaub qhwv qhov txhab vim lawv cov yam ntxwv hemostatic, nqus tau dej, thiab tua kab mob. Cov ntaub qhwv no pab txhawb kev kho qhov txhab, tiv thaiv kev kis kab mob, thiab tswj kom qhov txhab noo noo.
8. Scaffold hauv Tissue Engineering:
Cov cellulose scaffolds muab cov khoom siv biocompatible thiab biodegradable rau cov ntaub ntawv siv engineering. Los ntawm kev siv cov neeg sawv cev bioactive lossis cov cell, cov cellulose-based scaffolds tuaj yeem txhawb nqa kev tsim kho dua tshiab thiab kho cov ntaub ntawv hauv ntau yam mob.
9. Cov qauv tshuaj ntsiav:
Cov cellulose derivatives xws li hypromellose thiab hydroxypropyl cellulose yog siv ua cov khoom siv los tsim cov tshuaj ntsiav, muab lwm txoj hauv kev rau cov tshuaj ntsiav gelatin. Cov tshuaj ntsiav uas muaj cellulose yog qhov tsim nyog rau ob qho tib si cov tshuaj uas tso tawm tam sim ntawd thiab cov tshuaj uas tau hloov kho thiab nyiam siv rau cov neeg tsis noj nqaij lossis cov neeg ntseeg uas txwv tsis pub noj zaub mov.
10. Tus neeg nqa khoom hauv cov khoom siv tawg ua tej daim me me:
Cov cellulose nanoparticles tau txais kev saib xyuas ua cov khoom nqa cov tshuaj uas tsis yaj hauv dej hauv cov khoom khov. Lawv qhov chaw siab, porosity, thiab biocompatibility ua rau cov tshuaj yaj thiab bioavailability zoo dua.
11. Cov Ntawv Thov Tiv Thaiv Kev Ua Phem:
Cov ntaub ntawv uas muaj cellulose siv tau rau hauv cov ntim tshuaj ua cov kev ntsuas tiv thaiv kev cuav. Cov ntawv cim lossis cov ntawv lo uas muaj cellulose nrog cov yam ntxwv kev ruaj ntseg uas muaj nyob hauv yuav pab txheeb xyuas cov khoom tshuaj thiab tiv thaiv cov neeg cuav.
12. Kev Xa Tshuaj Rau Hauv Paus:
Cov cellulose derivatives xws li microcrystalline cellulose thiab lactose yog siv ua cov khoom nqa rau cov hmoov qhuav nqus pa. Cov khoom nqa no ua kom cov tshuaj sib xyaw ua ke thiab pab txhawb kev xa mus rau txoj hlab pa zoo.
cellulose thiab nws cov khoom siv ua cov khoom siv thiab cov khoom siv ntau yam hauv kev lag luam tshuaj, pab txhawb rau kev tsim cov tshuaj muaj kev nyab xeeb, zoo, thiab tus neeg mob zoo. Lawv cov yam ntxwv tshwj xeeb ua rau muaj ntau yam kev siv, txij li cov tshuaj ntsiav mus rau kev kho qhov txhab thiab kev tsim cov ntaub so ntswg, ua rau cellulose yog ib qho tseem ceeb hauv cov tshuaj niaj hnub thiab cov khoom siv kho mob.
Lub sijhawm tshaj tawm: Plaub Hlis-18-2024