منابع مشابه
A Novel Cross-linked Poly(vinyl alcohol) (PVA) for Vascular Grafts
Poly(vinyl alcohol) (PVA) is a water-soluble synthetic polymer with excellent film-forming, emulsifying, and adhesive properties. The aim of this study is to design a simple process for PVA cross-linking with sodium trimetaphosphate to form membrane devices suitable for biomedical applications. This procedure requires no organic solvent, nor melting process to obtain films with high mechanical ...
متن کاملSurface-charged polyacrylonitrile/poly(vinyl alcohol) (PAN/PVA) colloids used to prepare proton conducting materials
Proton exchang e membranes e xhibiting a well-org anized structure were successfully prepared by a novel self-assembling technique using surface-charged latex nanoparticles as building blocks. The nanoparticles were synthesized in water by free-radical copolymerization. Free-standing membranes were obtained by casting the poly mer e mulsions followed by a cross-linking reaction. The acquired me...
متن کاملPartial Resurfacing of the Distal Femoral Cartilage Defect with Stem Cell- Seeded Poly-Vinyl-Alcohol (PVA) Scaffold
Objective- To evaluate the biological compatibility of differentiated stem cells embedded in poly-vinyl-alcohol (PVA) scaffolds for repair of distal femoral cartilage defect. Design- Experimental in vivo study. Animals- Twelve adult male New Zealand white rabbits were used which were divided into two groups (I, II) six rabbits each. Procedures- Mesenchymal stem cells were isolated from h...
متن کاملEvaluation of morphology and cell behaviour of a novel synthesized electrospun poly(vinyl pyrrolidone)/poly(vinyl alcohol)/hydroxyapatite nanofibers
Objective(s): Three-dimensional structures such as nanofibrous scaffolds are being used in biomedical engineering as well as provide a site for cells to attach and proliferate leading to tissue formation. In the present study, poly(vinyl pyrrolidone) (PVP)/ poly(vinyl alcohol)(PVA) hybrid nanofibrous scaffold was synthesized by electrospinning. Materials and Methods: The effect of adding nano h...
متن کاملSynthesis of pH Sensitive Hydrogels Based on Poly Vinyl Alcohol and Poly Acrylic Acid
In this research, hydrogels based on poly vinyl alcohol and poly acrylic acid blend were prepared which were cross-linked by applied thermal conditions. Afterward, effects of time and heating on water uptake were investigated. The highest water uptake value exhibited by the sample that was heated for 20 min. at 110 ºC was about 2129% after 4 days at equilibrium state. Hydrogels exhibited p...
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ژورنال
عنوان ژورنال: Kobunshi
سال: 1998
ISSN: 0454-1138,2185-9825
DOI: 10.1295/kobunshi.47.38