nkhani

PolyvinylpyrrolidoneKapangidwe ka mankhwala (PVP) kali ndi mphete ya pyrrolidone, yomwe imapereka kusungunuka kwabwino kwa madzi, kuthekera kopanga filimu, kumamatira, komanso kugwirizana kwa zamoyo.

"K25″ mu PVP K25 imasonyeza kulemera kwake kwa mamolekyulu, komwe "K value" ndi chizindikiro chachikulu cha kulemera kwa mamolekyulu a PVP. K value yapamwamba imagwirizana ndi kulemera kwa mamolekyulu ndi kukhuthala kwakukulu. K25 imagwera mu mulingo wapakati-wotsika wa mamolekyulu, ndipo imasungunuka bwino kwambiri mu zosungunulira monga madzi, ethanol, ndi acetone.

Kugwiritsa Ntchito Kwambiri kwa PVP K25

Chifukwa cha kulemera kwake koyenera kwa mamolekyu, mphamvu zomatira, komanso kusungunuka,PVP K25imagwiritsidwa ntchito kwambiri m'mafakitale, zodzoladzola, ndi mafakitale:

Munda wa Mankhwala

Chida Chosungira Mapiritsi: Chikasungunuka m'madzi kapena mu ethanol, chimathandiza ufa wa mankhwala kumangirirana mu tinthu tating'onoting'ono, zomwe zimapangitsa kuti mapiritsi akhale olimba komanso osweka.

Solubilizer ndi Dispersant: Zimawonjezera kusungunuka kwa mankhwala osasungunuka bwino popanga ma complexes, motero zimawonjezera kupezeka kwa bioavailability.

Kapangidwe ka Filimu: Amagwiritsidwa ntchito m'njira zowongolera kutulutsa mankhwala kapena ma patches a transdermal kuti athetse kutulutsidwa kwa mankhwala.

Zodzoladzola ndi Chisamaliro Chaumwini

Kusamalira Khungu ndi Tsitsi: Kumagwira ntchito ngati chokhuthala, chokhazikika, kapena chopangira filimu, kukonza kapangidwe ka mankhwala ndikuwonetsetsa kuti zosakaniza zogwira ntchito zikufalikira mofanana.

Zopangira Masitayilo (monga ma gels a tsitsi, mascaras): Zimateteza tsitsi mosavuta chifukwa cha mawonekedwe ake opangidwa ndi filimu komanso kusungunuka m'madzi.

Mapulogalamu a Zamalonda

Zophimba ndi Inki: Zimathandiza ngati chosungunula ndi chokhuthala, chokhazikika cha utoto ndikuwonjezera kumatirira kwa utoto.

Makampani Opanga Nsalu: Amagwiritsidwa ntchito pochiza nsalu kuti awonjezere kusinthasintha komanso magwiridwe antchito oteteza kuzizira.

Zipangizo Zamagetsi: Zimagwira ntchito ngati chomangira kapena chotulutsira zinthu popanga batri kapena zigawo zake, kuonetsetsa kuti ma electrode amaphimbidwa mofanana.

Kugwira ntchito bwino kwa PVP K25 ndikwabwino kwambiri

Monga guluu wakale wa mankhwala, ubwino waukulu wa PVP K25 uli mu "kulinganiza" pakati pa mphamvu yake yomatira ndi kukhuthala kwa yankho:

Kumatirira kwambiri, kuonetsetsa kuti mapiritsi ndi olimba: Amatha kumangirira bwino ufa wa mankhwala ndi zinthu zina (monga zodzaza, zosungunuka), ndikupanga tinthu tokhazikika. Kuuma kwa mapiritsi osindikizidwa kumakwaniritsa muyezo ndipo samakhala ofooka, zomwe zimachepetsa mavuto monga mapiritsi osweka komanso omasuka panthawi yopanga. Ndi oyenera makamaka mapiritsi omwe ali ndi zofunikira kuti azimatirira mwamphamvu (monga mapiritsi a mankhwala okhala ndi mlingo waukulu ndi mapiritsi a ufa wovuta kupanga).

Kukhuthala kochepa kwa yankho, kosavuta kusungunula ndi kusamalira Poyerekeza ndi mitundu yapamwamba ya PVP (monga PVP K30, PVP K90), K25 ili ndi kulemera kochepa kwa mamolekyulu. Yankho lake lamadzi kapena yankho lachilengedwe (monga ethanol) lili ndi kukhuthala kochepa, limasungunuka mwachangu, ndipo silipanga "ziphuphu" panthawi ya granulation, zomwe zimapangitsa kuti kusakaniza kukhale kofanana. Nthawi yomweyo, imachepetsa zovuta zogwirira ntchito za zida (monga granulators, tableti presses) ndikuwonjezera magwiridwe antchito opangira.

Kodi PVP K25 ndi yotetezeka bwanji?

PVP K25ndi mankhwala ophera mankhwala omwe ali ndi chitetezo chotsimikizika mokwanira, akukwaniritsa miyezo ya pharmacopoeia ya mayiko ambiri padziko lonse lapansi. Deta ya poizoni imathandizira kuti ili ndi poizoni wochepa, yosasonkhanitsa, komanso yosakwiyitsa. Kachitidwe kake ka kagayidwe kachakudya m'thupi ndi komveka bwino komanso kosasokoneza. Kuphatikiza ndi zaka zambiri zogwiritsidwa ntchito kuchipatala, zitha kuganiziridwa kuti pamankhwala ochiritsira, chitetezo chake chimakhala chokwera kwambiri, zomwe zimapangitsa kuti chikhale chosankha chodalirika cha mankhwala m'munda wa mankhwala.

Tiyenera kudziwa kuti chitetezo cha zinthu zogwiritsidwa ntchito pochiza matenda chiyenera kufufuzidwa bwino pamodzi ndi njira yonse yogwiritsira ntchito mankhwala enaake (monga zinthu zina zogwiritsidwa ntchito pochiza matenda, zosakaniza zomwe zimagwiritsidwa ntchito pochiza matenda). Chitetezo cha chinthu chimodzi chogwiritsidwa ntchito pochiza matenda sichikutanthauza chitetezo chonse cha mankhwalawo. Pomaliza pake, kugwiritsa ntchito kuyenera kutsatira malangizo omwe ali pa chizindikiro cha mankhwalawo.

Zonse pamodzi,PVP K25ndi polima wolemera pang'ono wa molekyulu wokhala ndi zomatira zosiyanasiyana komanso zopanga filimu. Imagwira ntchito yofunika kwambiri pa mankhwala, zodzoladzola, ndi ntchito zamafakitale, makamaka ngati chomangira, chosungunula, komanso chosungunula munjira zopangira, zomwe zimapangitsa kuti ikhale chinthu chofunikira chothandizira pazinthu zogula ndi zamafakitale.