The present study aimed to investigate the effects of glycerol on the physical properties and release of an insulin-loaded polyvinyl alcohol (PVA) hydrogel film. The insulin-loaded hydrogel composite film was produced using the freeze-thawing method, after which the in vitro swelling ratio, transmittance and insulin release, and the in vivo pharmacodynamics, of hydrogels containing various volu...

A simple method with low cost of encapsulation for organic light emitting diode (OLED) devices mounted at laboratory was proposed to obtain considerable increase the lifetime. In this study, it used a capsule formed by: glass slide as substrate, layer polyvinyl acetate glue diluted in methyl alcohol, calcium oxide secant and epoxy placed edges capsule. The performance analyzed using thin film p...

BACKGROUND The intraocular pressures and biomechanical parameters measured by the ocular response analyzer make the analyzer a useful tool for the diagnosis and management of anterior segment disease. This observational study was designed to investigate the effect of topical anesthesia on the parameters measured by the ocular response analyzer: corneal hysteresis, corneal resistance factor, Gol...

In this investigation, we report facile synthesis of cadmium(II)-thioacetamide nanocomposites in the presence and absence of polyvinyl alcohol under ultrasonic irradiations, using cadmium acetate dihydrate (Cd(CH3COO)2.2H2O), potassium iodide (KI), thioacetamide (TAA, CH3CSNH2), and polyvinyl alcohol (PVA) as the starting materials. Results show that in the presence of polyvinyl alcohol size...

In this research, polyvinyl alcohol (PVA)-chitosan composite films were produced using nanocellulose from coconut fibers (Cocos nucifera) in an Indonesian plantation order to enhance mechanical properties and biodegradability. The process began by separating lignin hemicellulose delignification, bleaching, then cellulose hydrolysis produce nanocellulose. PVA was mixed with chitosan specific com...

This paper presents an experimental study of addition cellulose nanofibers (CNF) extracted by the chemical-ultrasonication process from agave cantala leaf plants in matrix polyvinyl alcohol (PVA). Combining these materials produce nanocomposite film with a thickness 30 μm. The characteristic was investigated CNF (0, 2, 5, 8, and 10 wt%) PVA suspension (3 wt.%). PVA/CNF films were prepared casti...

In this study, thin-film composite (TFC) polyvinylidene fluoride (PVDF) membranes were synthesized by coating with titanium dioxide (TiO2)/polyvinyl alcohol (PVA) solution a dip method and cross-linked glutaraldehyde. Glutaraldehyde (GA) acted as cross-linking agent to improve the thermal chemical stability of thin film coating. The incorporation TiO2 in enhanced hydrophilicity membrane rejecti...