Zaj duab xis txheej thev naus laus zis yog dav siv hauv kev lag luam kws tshuaj, tshwj xeeb yog nyob rau hauv kev tsim cov tshuaj ntawm cov tshuaj. Zaj duab xis txheej tsis tuaj yeem txhim kho cov tshuaj muaj zog, tab sis kuj tseem txhim kho tus nqi tsis hnov tsw, npog cov tshuaj tsw qab lossis kev iab liam, thiab txhim kho kev ua raws li kev ua raws. Ntawm lawv, hydroxypropyl methylcellueculose (HPMC), raws li ib qho khoom siv txheej tseem ceeb hauv zaj duab xis vim nws cov kev ua tau zoo thiab kev ua tau zoo.
1. Cov khoom yooj yim ntawm HPMC
HPMC yog cov polymer compound tau los ntawm kev hloov tshuaj lom neeg ntawm cov cellulose ntuj. Nws yog feem ntau tau los ntawm cellulose tom qab kev kho mob metylropyl thiab methylation kev kho mob, thiab muaj dej ua kom zoo thiab biocompatibility. Lub solubility thiab viscosity ntawm HPMC hauv dej tuaj yeem tswj hwm los ntawm kev kho nws cov qauv molecular, kom nws tuaj yeem hloov kho cov qauv sib txawv. Tsis tas li ntawd, HPMC muaj zoo thermal stability, tshuaj stability thiab biodegradability, thiab tsis muaj kuab lom thiab tsis muaj mob, ua kom muaj kev nyab xeeb ntawm cov tshuaj.
2. Qhov zoo ntawm HPMC ua zaj duab xis txheej
2.1 Zaj Duab Xis Zoo Tshaj Plaws-Ua Tau
HPMC muaj kev ua yeeb yaj kiab zoo-ua cov cuab yeej. Tom qab kev sib nrauj, HPMC tuaj yeem ua cov yeeb yaj kiab zoo sai sai ntawm cov npoo ntawm cov ntsiav tshuaj, thiab lub zog zaj duab xis, smanness thiab pob tshab yog txhua yam zoo tagnrho. Qhov no tso cai rau nws kom ntseeg tau cov tshuaj zoo li ntawm cov tshuaj thaum siv los ua cov khoom lag luam txheej, thiab tseem txhim kho txoj kev sib cuam tshuam ntawm cov tshuaj hauv lub cev.
2.2 Tshuaj Tso Tawm Yooj Yim
HPMC muaj cov yam ntxwv ntawm kev tswj cov tshuaj tso tawm, thiab yog siv dav hauv kev tswj hwm kev npaj. Thaum HPMC yog siv los ua ib feem ntawm zaj duab xis txheej, nws tuaj yeem tswj tau cov tshuaj tso tawm ntawm cov tshuaj los ntawm kev haus dej ntawm zaj duab xis. Tshwj xeeb tshaj yog nyob rau hauv qhov ncauj cov khoom npaj, txheej txheej txheej ntawm cov txheej txheem ntawm cov tshuaj, yog li ua tiav cov tshuaj tso tawm los yog tso tawm cov tshuaj tso tawm hauv cov pa taws. Piv txwv li, HPMC tuaj yeem maj mam tso cov tshuaj los ntawm kev tso tawm cov tshuaj, tsis tas li kev hloov pauv ntawm lub sijhawm luv luv, yog li kev txhim kho cov nyhuv kho thiab txo cov kev mob tshwm sim.
2.3 Muaj txiaj ntsig rau cov tshuaj muaj kev ruaj ntseg
HPMC txheej tuaj yeem tiv thaiv cov tshuaj muaj pov thaiv thiab tiv thaiv lawv los ntawm kev tsis taus lossis oxidation nyob rau sab nraud, tshwj xeeb rau cov tshuaj uas muaj kev ya raws, lub teeb lossis huab cua. Cov teeb meem txheej txheem tsim los ntawm txheej yeeb yaj kiab tuaj yeem tiv thaiv cov tshuaj los ntawm kev tiv toj rau sab nraud ib puag ncig thiab txo qis qhov tsis muaj peev xwm ntawm cov tshuaj sab nraud. Piv txwv li, HPMC tuaj yeem tiv thaiv cov dej noo thiab huab cua ntawm cov tshuaj, yog li kev txhim kho cov khoom muaj zog ntawm cov tshuaj.
2.4 Txhim kho cov tsos thiab saj ntawm cov tshuaj
HPMC muaj qhov zoo transparency, uas tuaj yeem ua rau cov tshuaj du thiab ci, nce kev zoo nkauj ntawm cov tshuaj, thiab txhim kho tus neeg mob txoj kev lees txais. Tsis tas li ntawd, HPMC kuj tseem tuaj yeem them cov paj uas tsis muaj ntxhiab tsw qab los yog kev sib luag thiab txhim kho cov tshuaj saj. Tshwj xeeb tshaj yog rau qee cov tshuaj nrog cov tshuaj phem, xws li tshuaj tua kab mob, tshwj xeeb tshaj yog cov neeg mob HPMC tuaj yeem txhim kho tus neeg mob kev noj tshuaj muaj zog, tshwj xeeb hauv cov menyuam yaus thiab cov neeg laus, thiab txhim kho tus neeg mob ua raws.
2.5 biocompatibility thiab kev nyab xeeb
HPMC yog muab tau los ntawm cov xov tooj hauv ntuj, muaj qhov zoo biocompatibility thiab biodegradity, thiab tsis ua rau pom kev lom zem heev hauv tib neeg lub cev. Yog li, HPMC tuaj yeem siv nyab xeeb siv rau hauv kev tsim cov tshuaj ntawm cov tshuaj ua ib zaj duab xis txheej tsis muaj kev cuam tshuam tsis zoo rau tib neeg lub cev. Nws muaj tsawg dua kev voos rau lub plab zom mov rau kev tawm tsam thiab yuav tsis ua rau lub nra hnyav rau tib neeg lub cev tom qab siv.
2.6 Ntau yam kev siv
HPMC ua cov khoom siv ua yeeb yaj kiab yog tsim nyog rau kev tsim cov tshuaj uas npaj, HPMC tuaj yeem hloov kho nws cov kev xav tau. Qhov no ua rau HPMC tsis tshua muaj zog yoog thiab hloov tau yooj yim, thiab tuaj yeem ua kom tau raws li cov kev xav tau ntawm cov tshuaj sib txawv. Seb nws yog cov khoom siv, ntsiav tshuaj, lossis tsiav tshuaj, HPMC tuaj yeem siv rau txheej.
3. Cov ntawv thov piv txwv ntawm HPMC zaj duab xis txheej
Hauv kev siv cov tswv yim, HPMC tau dav siv raws li zaj duab xis txheej cov khoom siv nyob rau ntau yam ntawm kev npaj tshuaj. Piv txwv li, nyob rau hauv kev npaj ntawm qee yam tshuaj tsis yog-steroiden thiab acetaminophen, aceteprofeny thiab tshuaj txo cov tshuaj rau txoj hnyuv. Tsis tas li ntawd, rau kev tsom xam cov tshuaj, HPMC kuj tau siv nyob rau hauv kev nthuav dav tshuaj, xws li ncua kev tshuaj noj thiab ua kom muaj kev ua tau zoo tshuaj yeeb.
Raws li zaj duab xis txheej cov khoom, HPMC muaj cov txiaj ntsig zoo hauv kev npaj tshuaj. Nws tsis yog tsuas yog muab cov duab zoo nkauj heev-tsim thiab ruaj khov, tab sis kuj tswj cov tshuaj tso tawm, txhim kho cov tshuaj thiab cov tsos ntawm cov tshuaj, thiab txhim kho tus neeg mob ua raws. HPMC's Biocompatibility, tsis muaj txiaj ntsig, thiab kev yoog tau zoo ua nws tseem ceeb ntawm cov tshuaj yeeb yaj kiab niaj hnub ua thev naus laus zis. Nyob rau yav tom ntej kev tshawb tshuaj ua kom zoo nkauj, HPMC yuav tsis ntseeg txuas ntxiv mus ua si nws lub luag haujlwm tshwj xeeb thiab tau raws li cov kev xav tau ntau dua thiab ntau dua ntawm cov tshuaj.
Lub sijhawm Post: Feb-15-2025