Amazi yoroheje ya selile yahinduwe yahinduwe nubushyuhe. Muri rusange, abatanga seliki benshi barashonje mumazi ahantu hato. Iyo ubushyuhe buzamutse, abakemuke babo buhoro buhoro bahinduka abakene buhoro buhoro kandi amaherezo bakaba bamerewe nabi. Ubushyuhe buke bwo gukemura (LCST: Hafi yubushyuhe bwimisoro) ni parameter yingenzi kugirango iranga ubushyuhe bworoshye bwa selile, ni ukuvuga hejuru yubushyuhe bwo hasi, ether ether ihujwe mumazi.
Gushyushya ibisubizo bya methylcellseliulose byizwe na Mechanism yimpinduka mubikesha. Nkuko byavuzwe haruguru, iyo igisubizo cya methylcellse kiri ku bushyuhe buke, Macronolecule zikikijwe na molekile y'amazi kugirango ikore imiterere ya cage. Ubushyuhe bukoreshwa nubushyuhe buzasenya isuku hagati ya molekile y'amazi na molekile ya mc, mugihe cya methquile izabamburwa, kandi methyl izerekurwa muri molegen Byashobokaga gutegura no kwiga ishyirahamwe rya hydrophobike rya hydroxyproppopyl methylcellseliulose nyaba nyamabuye yashizwemo hydrogel. Niba amatsinda ya methyl kumurongo umwe wa molecular ni hydrophome ihujwe, iyi mikoranire yo kuvuza izatuma molekile yose igaragara. Ariko, ubwiyongere bwubushyuhe buzatera urujijo igice cy'umunyururu, imikoranire ya hydrophobic muri molekile izaba idahindagurika, kandi urunigi rwa molekile ruzahinduka kuva mu ntara yahagaritswe. Muri iki gihe, imikoranire ya hydrophobike hagati ya molekile itangira kuganza. Iyo ubushyuhe burazamutse buhoro buhoro, abantu benshi kandi benshi baravunitse, kandi byinshi bya selile ether molekile batandukanijwe binyuze mumiterere ya cage, kandi Macronolecules yegereje mumiterere ya stylephobike kugirango ikore hydrophobic. Hamwe no kwiyongera ubushyuhe, amaherezo iminyururu yose yaravunitse, kandi ishyirahamwe ryayo ryamazi ryamazi rigera ku ntarengwa, kongera umubare nubunini bwa hydrophobic. Muri iki gikorwa, methycellse ihinduka buhoro buhoro kandi amaherezo ihushwa rwose mumazi. Iyo ubushyuhe buzamutse kugeza aho imiterere yimiyoboro itatu ikozwe hagati ya macromolecules, bigaragara ko ikora macroskopi.
Jun Gao na George Haidar et Al yize ingaruka z'ubushyuhe bwa hydroxyPropyl. Ku bushyuhe buri munsi ya 30c, urunigi rumwe rwa molekile rwa hydroxypropyl ni muburyo bwa sydrody of radiyo butemewe, kandi hagamijwe gukwirakwiza Ralekile ku bushake, kandi nta mugezi uri hagati ya Macronolecules. Iyo ubushyuhe bwiyongereye kuri 390c, imikoranire ya hydrophobike hagati yiminyururu irakomeye, Maäronolecules ituza, kandi amazi yo kukecuruzwa kwa polymer aba umukene. Ariko, kuri ubu bushyuhe, igice gito cya hydroxyPropyl molekile ya selile igira iminyururu mike gusa, mugihe molekile nyinshi ziracyari mubinyururu. Iyo ubushyuhe bugera kuri 400c, benshi Macronolecules bagize uruhare mu gushyiraho igiteranyo, kandi abadakira biba babi kandi bikaba bibi, ariko muri iki gihe, molekile zimwe ziracyari muburyo bwinyungu imwe. Iyo ubushyuhe buri murwego rwa 410c-440c, kubera ingaruka zikomeye za hydrophobic ku bushyuhe bwinshi, molekile nyinshi ziteranya kugirango zibe rinini kandi denser nanoparticles nini cyane. Inzozi ziba nini kandi zidasanzwe. Imiterere ya ABOGGFhobic iganisha ku gushyiraho uturere tw'ibice byo hejuru kandi bike bya Polymer mu gisubizo, igiciro cyicyiciro cya microscopique gitandukanya icyiciro cya microscopique.
Bikwiye kwerekanwa ko agngrticle ya Nanoparticle iri muburyo buhamye bwa kinetique, ntabwo ari intara zihamye. Ibi ni ukubera ko nubwo imiterere ya cage yambere yarasenyutse, haracyari hydrogène ikomeye hagati yitsinda rya hydrofilique itsinda hamwe na molekile y'amazi na hydroxypropyl kuva kumurongo. Amergoricle aggrerticle yageze kuri dinamic iringaniye na leta ihamye iyobowe ningaruka zombi.
Byongeye kandi, ubushakashatsi bwasanze kandi igipimo cyo gushyushya nacyo kigira ingaruka kumushinga wibice biterabwoba. Ku gipimo cyihuse cyo gushyushya, guteranya iminyururu ya molekile irihuta, kandi ingano ya nanoparticles ni nto; Kandi iyo igipimo cyo gushyushya kitinda, Macronolecules ifite amahirwe menshi yo gukora Nanoparticle nini ya Nanoparticle nini.
Igihe cya nyuma: APR-17-2023