Qhov sib txawv tseem ceeb ntawm hydrogel thiab silicone hydrogel yog qhov lo ntsiab muag ua los ntawm hydrogel yog qhov ntxeem tau tsawg, qhov lo ntsiab muag ua los ntawm silicone hydrogel yog hom porous ntau dua ntawm cov lo ntsiab muag muag.
Hydrogel yog ib qho crosslinked hydrophilic polymer uas tsis tuaj yeem yaj hauv dej. Silicone hydrogel, ntawm qhov tod tes, yog kev sib xyaw ntawm silicone roj hmab thiab cov pa hydrogel monomers. Ob qho khoom siv no tseem ceeb heev hauv kev tsim cov lo ntsiab muag vim lawv qhov ntxeem tau.
Y Hydrogel yog dab tsi?
Hydrogel yog ib qho crosslinked hydrophilic polymer uas tsis tuaj yeem yaj hauv dej. Txawm hais tias hydrogels yog absorbent heev, cov ntaub ntawv no kuj zoo li yuav tswj tau tus qauv zoo. Peb tuaj yeem npaj cov ntaub ntawv no siv cov polymers sib txawv, xws li ntuj lossis hluavtaws. Ntawm lawv, cov khoom siv ntuj tsim rau hydrogel suav nrog hyaluronic acid, chitosan, heparin, alginate, thiab fibrin, thaum cov khoom siv hluavtaws muaj xws li polyvinyl cawv, polyethylene glycol, sodium polyacrylate, acrylate polymers, thiab lawv cov copolymer.
Muaj ntau ntau yam kev siv hydrogel: kev tsim cov lo ntsiab muag, scaffolds hauv cov ntaub so ntswg engineering, kab lis kev cai ntawm tes, cov neeg nqa tshuaj, biosensors, tsim cov pawm pov tseg, dej gel explosives, mis cog, thiab lwm yam.
Hydrogel yog qhov tseem ceeb hauv kev tsim cov tshuaj tiv thaiv kab mob. Feem ntau, cov lo ntsiab muag no nyias nyias thiab haum rau pem hauv ntej ntawm lub qhov muag. Qhov no yog lub npe hu ua cornea. Qhov no tuaj yeem haum rau ntawm lub cornea yam tsis ua rau muaj kev tsis xis nyob ntau dhau. Ntxiv mus, hydrogel lo ntsiab muag tuaj yeem tso cua ntau dhau mus rau lub pob kws piv rau cov kev sib cuag li niaj zaus; yog li ntawd, nws thiaj li yuav txo tau qhov muag qhuav thiab liab.
Y Silicone Hydrogel yog dab tsi?
Silicone hydrogel yog cov tshuaj tiv thaiv uas yog kev sib xyaw ntawm silicone roj hmab thiab cov pa hydrogel monomers. Nws muaj cov khoom tseem ceeb, xws li nce cov pa permeability thiab kev kho mob ntawm cov lo ntsiab muag.
Cov tshuaj no muaj txiaj ntsig zoo hauv kev ua cov tshuaj silicone hydrogel lo ntsiab muag uas muaj cov matrix khov kho vim muaj kev sib koom ua ke ntawm silicone thiab muaj cov dej qis uas tuaj yeem ua rau lawv tawv dua li lwm hom lo ntsiab muag, xws li CH lo ntsiab muag. Cov lo ntsiab muag no tuaj yeem hnav li 30 hmo yam tsis muaj kev tshem tawm; Txawm li cas los xij, rau qee tus neeg siv, kev nplij siab tsis zoo tau ua rau lub sijhawm hnav tsawg. Qhov kev nplij siab yuav tsawg dua vim muaj kev sib txhuam ntawm sab xub ntiag thiab hauv qab ntawm daim tawv muag.
Nyob rau xyoo 1990, thawj ob lub silicone hydrogels tau pib. Cov no tau hu ua balafilcon A thiab lotrafilcon A lens. Ob qho no tau tso cai rau 30 hnub ntawm kev hnav tsis tu ncua. Silicone hydrogen yog ib qho tseem ceeb hauv kev tsim cov tshuaj tiv thaiv lo ntsiab muag, thiab cov kws kho qhov muag feem ntau pom zoo silicone hydrogel tshaj li niaj zaus hydrogel vim tias hom tshuaj tiv thaiv no tuaj yeem xa cov pa ntau ntxiv rau lub pob ntseg vim nws qhov porosity siab. Yog li ntawd, nws muaj txiaj ntsig zoo rau cov neeg mob uas xav tau sijhawm ntev hnav.
Qhov txawv ntawm Hydrogel thiab Silicone Hydrogel yog dab tsi?
Hydrogel thiab silicone hydrogel yog cov ntaub ntawv tseem ceeb hauv kev tsim cov lo ntsiab muag. Txawm li cas los xij, lawv muaj cov tshuaj lom neeg thiab lub cev sib txawv. Qhov sib txawv tseem ceeb ntawm hydrogel thiab silicone hydrogel yog tias cov lo ntsiab muag ua los ntawm hydrogel yog qhov ntxeem tau tsawg, qhov lo ntsiab muag ua los ntawm silicone hydrogel yog ib hom porous ntau ntawm cov lo ntsiab muag muag.
Cov hauv qab no qhia txog qhov sib txawv ntawm hydrogel thiab silicone hydrogel hauv daim ntawv tabular rau kev sib piv ntawm ib sab.
Summary – Hydrogel vs Silicone Hydrogel
Hydrogel yog crosslinked hydrophilic polymer uas tsis tuaj yeem yaj hauv dej, thaum silicone hydrogel yog kev sib xyaw ntawm silicone roj hmab thiab cov pa hydrogel monomers. Qhov sib txawv tseem ceeb ntawm hydrogel thiab silicone hydrogel yog tias cov lo ntsiab muag ua los ntawm hydrogel yog qhov ntxeem tau tsawg, qhov lo ntsiab muag ua los ntawm silicone hydrogel yog ib hom porous ntau ntawm cov lo ntsiab muag muag.
