نتایج جستجو برای: polyvinyl alcohol film

تعداد نتایج: 211236  

Journal: :Journal of Polymers and The Environment 2021

Pollution and destruction of the environment due to accumulation non-degradable plastics are some most important concerns in world. A significant amount this waste is related polymers used food packaging. Therefore, experts industry have been looking for suitable biodegradable alternatives synthetic polymers. Preparing biocompatible films based on starch a good choice. In study, various factors...

Journal: :Chemosphere 2004
Tomonori Ishigaki Wataru Sugano Akane Nakanishi Masafumi Tateda Michihiko Ike Masanori Fujita

Degradabilities of four kinds of commercial biodegradable plastics (BPs), polyhydroxybutyrate and hydroxyvalerate (PHBV) plastic, polycaprolactone plastic (PCL), blend of starch and polyvinyl alcohol (SPVA) plastic and cellulose acetate (CA) plastic were investigated in waste landfill model reactors that were operated as anaerobically and aerobically. The application of forced aeration to the l...

2016
Liang Tu Yanhui He Chunhui Shan Zhansheng Wu

Inoculation of the bacterial cells of microbial seed coating agents (SCAs) into the environment may result in limited survival and colonization. Therefore, the application efficacy of an encapsulated microbial seed coating agent (ESCA) was investigated on potted cotton plants; the agent was prepared with polyvinyl alcohol, sodium dodecyl sulfate, bentonite, and microencapsulated Bacillus subtil...

2012
Devasier Bennet Mohana Marimuthu Sanghyo Kim Jeongho An

Antioxidant (quercetin) and hypoglycemic (voglibose) drug-loaded poly-D,L-lactideco-glycolide nanoparticles were successfully synthesized using the solvent evaporation method. The dual drug-loaded nanoparticles were incorporated into a scaffold film using a solvent casting method, creating a controlled transdermal drug-delivery system. Key features of the film formulation were achieved utilizin...

Journal: :ASEAN Engineering Journal 2021

The film forming ability of chitin (CT) blended with polyvinyl alcohol (PVA) were prepared a seriesof nine different ratios CT:PVA, (10:90, 20:80, 30:70, 40:60, 50:50, 60:40, 70:30, 80:20, 90:10v/v),using 2% solution and 10% solution. All films have highlytransparent, smooth surface pale-yellow color. characterized by usingthe physical parameters, the physico-mechanical properties, degree swell...

Journal: :AJNR. American journal of neuroradiology 1995
G S Davidson K G Terbrugge

A large facial vascular malformation was embolized with polyvinyl alcohol particles twice in 8 years. Resected tissue enabled long-term examination of this material, confirming its chemical inertness and revealing minimal tissue reaction to it apart from calcification. No particle migration, fragmentation, or absorption occurred. There was some recanalization of occluded vessels. Most vessels c...

Journal: :AJNR. American journal of neuroradiology 1983
J A Horton G D Marano C W Kerber J J Jenkins S Davis

Gelfoam and polyvinyl alcohol foam particles each have advantages and disadvantages for therapeutic embolization. It was theorized and confirmed that a mixture of the two retains the advantages and eliminates the disadvantages of each. Two mixtures were prepared, tested in animals, and used successfully in 14 patients. It was found that the mixtures of Gelfoam and polyvinyl alcohol foam particl...

2010
S. Ravichandran K. Ramanathan Hiroshi Asai

Ultrasonic velocities and densities have been measured for the aqueous solution of manganese sulphate, nickel sulphate and copper sulphate in polyvinyl alcohol solution, in different concentration at 303K. Adiabatic compressibility, intermolecular free length, acoustic impedance, surface tension and other acoustical parameters have been calculated to assess the polymer-ion interaction. It is se...

2015
S. K. Patel D. R. Shah S. Tiwari

Fluconazole is a broad spectrum antifungal agent that has been extensively applied for the management of oral, pharyngeal and cutaneous candidiasis. Fluconazole has a high volume of distribution (0.55-0.65 l/kg) and has systemic toxicity due to high drug-drug interaction. The present study focuses on the formulation of bioadhesive film as a controlled release carrier for fluconazole. The formul...

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