Tšebeliso ea pharmaceutical grade hydroxypropyl methylcellulose (HPMC)

Hydroxypropyl methylcellulose (HPMC) ke polymer ea maiketsetso ea semi-synthetic e sebelisoang haholo liindastering tse ngata, haholo lefapheng la meriana. HPMC e se e le motlatsi oa bohlokoa ka ho fetisisa litokisetsong tsa meriana ka lebaka la biocompatibility ea eona, e seng chefo le thepa e babatsehang ea 'mele le lik'hemik'hale.

(1) Litšobotsi tsa mantlha tsa sehlopha sa meriana HPMC
HPMC ke non-ionic cellulose ether e lokisitsoeng ke karabelo ea selulose ka propylene oxide le methyl chloride tlas'a maemo a alkaline. Sebopeho sa eona se ikhethang sa lik'hemik'hale se fa HPMC ho qhibiliha ho hoholo, ho tenya, ho etsa lifilimi le thepa ea emulsifying. Tse latelang ke tse ling tsa litšobotsi tsa bohlokoa tsa HPMC:

Ho qhibiliha ha metsi le ho itšetleha ka pH: HPMC e qhibiliha ka metsing a batang ebe e etsa tharollo e hlakileng ea viscous. The viscosity ea tharollo ea eona e amana le mahloriso le boima ba limolek'hule, 'me e na le botsitso bo matla ho pH' me e ka lula e tsitsitse libakeng tse peli tsa acidic le alkaline.

Thermogel thepa: HPMC e bonts'a thepa e ikhethang ea thermogel ha e futhumala. E ka etsa gel ha e futhumetse mocheso o itseng ebe e khutlela boemong ba mokelikeli ka mor'a ho pholile. Thepa ena e bohlokoa haholo litokisetsong tsa tokollo ea nako e telele ea lithethefatsi.
Biocompatibility le non-toxicity: Kaha HPMC ke derivative ea selulose 'me ha e na tefo ebile e ke ke ea itšoara ka metsoako e meng, e na le biocompatibility e babatsehang' me e ke ke ea kenngoa 'meleng. Ke motsoako o se nang chefo.

(2) Tšebeliso ea HPMC meriana
HPMC e sebelisoa haholo indastering ea meriana, e sebetsanang le mafapha a mangata joalo ka meriana ea molomo, ea lihlooho le e nang le ente. Litaelo tsa mantlha tsa ts'ebeliso ea eona ke tse latelang:

1. Lintho tse entsoeng ka filimi matlapeng
HPMC e sebelisoa haholo ts'ebetsong ea ho roala matlapa e le thepa ea ho etsa filimi. Ho roala letlapa ho ke ke ha sireletsa lithethefatsi feela tšusumetsong ea tikoloho e ka ntle, e kang mongobo le leseli, empa hape ho koahela monko o mobe le tatso ea lithethefatsi, ka tsela eo ho ntlafatsa ho latela mamello. Filimi e entsoeng ke HPMC e na le ho hanyetsa metsi hantle le matla, e ka khonang ho lelefatsa nako ea nako ea lithethefatsi.

Ka nako e ts'oanang, HPMC e ka boela ea sebelisoa e le karolo e ka sehloohong ea li-membrane tse laoloang-ho lokolloa bakeng sa tlhahiso ea matlapa a tsoelang pele a lokolloa le a laoloang. Lintho tsa eona tsa gel tse futhumatsang li lumella lithethefatsi hore li lokolloe 'meleng ka lebelo le reriloeng esale pele, ka hona ho fihlela phello ea kalafo ea nako e telele ea lithethefatsi. Sena se bohlokoa ka ho khetheha kalafong ea mafu a sa foleng, joalo ka litlhoko tsa nako e telele tsa meriana ea bakuli ba nang le lefu la tsoekere le khatello ea mali.

2. E le moemeli oa tokollo e tsitsitseng
HPMC e sebelisoa haholo e le moemeli oa tokollo e tsitsitseng litokisetsong tsa lithethefatsi tsa molomo. Hobane e ka etsa gel ka metsing 'me lesela la gel le qhibiliha butle-butle ha moriana o lokolloa, o ka laola ka katleho sekhahla sa ho lokolloa ha moriana. Kopo ena e bohlokoa haholo ho lithethefatsi tse hlokang ho lokolloa ha lithethefatsi tse nkang nako e telele, joalo ka insulin, li-antidepressants, jj.

Sebakeng sa gastrointestinal, lera la gel la HPMC le ka laola sekhahla sa ho lokolloa ha moriana, ho qoba ho lokolloa ha moriana ka potlako ka nako e khutšoanyane, kahoo ho fokotsa litla-morao le ho lelefatsa katleho. Thepa ena ea nako e telele e lokolotsoe ka ho khetheha bakeng sa phekolo ea lithethefatsi tse hlokang ho tsitsisa ha lithethefatsi tsa mali, tse kang lithibela-mafu, lithethefatsi tse thibelang lefu la sethoathoa, joalo-joalo.

3. E le se tlamang
HPMC hangata e sebelisoa joalo ka setlamo ts'ebetsong ea tlhahiso ea letlapa. Ka ho eketsa HPMC ho likaroloana tsa lithethefatsi kapa li-powders, metsi a eona le ho khomarela li ka ntlafatsoa, ​​ka tsela eo ho ntlafatsa phello ea khatello le matla a letlapa. Ho se chefo le botsitso ba HPMC ho e etsa setlamo se loketseng matlapeng, li-granules le li-capsules.

4. E le motenya le stabilizer
Litokisetsong tsa mokelikeli, HPMC e sebelisoa haholo e le setenya le se tsitsitseng ka lino tse fapaneng tsa molomo, marotholi a mahlo le litlolo tsa lihlooho. Thepa ea eona e teteaneng e ka eketsa viscosity ea lithethefatsi tse metsi, ho qoba stratification ea lithethefatsi kapa pula, le ho netefatsa kabo e tšoanang ea metsoako ea lithethefatsi. Ka nako e ts'oanang, thepa ea lubricity le moisturizing ea HPMC e etsa hore e khone ho fokotsa ka katleho ho se utloise bohloko ha mahlo marotholi a mahlo le ho sireletsa mahlo ho tsoa ho teneha ka ntle.

5. E sebelisoa ka capsules
Joaloka selulose e nkiloeng ke semela, HPMC e na le biocompatibility e ntle, e etsang hore e be thepa ea bohlokoa bakeng sa ho etsa li-capsules tsa semela. Ha ho bapisoa le li-capsules tsa gelatin tsa liphoofolo tse tloaelehileng, li-capsules tsa HPMC li na le botsitso bo betere, haholo-holo mocheso o phahameng le maemo a mongobo o phahameng, 'me ha ho bonolo ho holofala kapa ho qhibiliha. Ntle le moo, li-capsules tsa HPMC li loketse batho ba jang meroho le bakuli ba alejiki ho gelatin, ho eketsa boholo ba tšebeliso ea lithethefatsi tsa capsule.

(3) Lisebelisoa tse ling tsa lithethefatsi tsa HPMC
Ntle le lits'ebetso tse tloaelehileng tsa lithethefatsi tse kaholimo, HPMC e ka sebelisoa le mafapheng a mang a itseng a lithethefatsi. Ka mohlala, ka mor'a ophthalmic ophthalmic, HPMC e sebelisoa ka marotholi a mahlo e le setlolo ho fokotsa ho ferekana holim'a leihlo le ho khothalletsa ho hlaphoheloa. Ho feta moo, HPMC e ka boela ea sebelisoa litlolo le li-gel ho khothaletsa ho monya lithethefatsi le ho ntlafatsa ts'ebetso ea litlhare tsa lehae.

Pharmaceutical grade HPMC e phetha karolo ea bohlokoa litokisetsong tsa lithethefatsi ka lebaka la thepa ea eona e babatsehang ea 'mele le lik'hemik'hale. E le multifunctional pharmaceutical excipient, HPMC e ke ke ea ntlafatsa botsitso ba lithethefatsi feela le ho laola ho lokolloa ha lithethefatsi, empa hape e ntlafatsa phihlelo ea ho noa meriana le ho eketsa ho latela mokuli. Ka tsoelopele e tsoelang pele ea thekenoloji ea meriana, sebaka sa ts'ebeliso ea HPMC se tla ba se pharaletseng le ho bapala karolo ea bohlokoa ho nts'etsopele ea lithethefatsi nakong e tlang.


Nako ea poso: Sep-19-2024