Poly(vinyl alcohol)-Silver Nitrate Facilitated Transport Membranes for the Separation of Aromatic and Aliphatic Compounds

1999 ◽  
pp. 127-134 ◽  
Author(s):  
Carl A. Koval ◽  
Debra L. Bryant ◽  
Sarah L. Roberts ◽  
Richard D. Noble
Keyword(s):  
Silver Nitrate ◽  
Vinyl Alcohol ◽  
Facilitated Transport ◽  
Poly Vinyl Alcohol ◽  
Aliphatic Compounds

scholarly journals The Design, Characterization and Antibacterial Activity of Heat and Silver Crosslinked Poly(Vinyl Alcohol) Hydrogel Forming Dressings Containing Silver Nanoparticles

Nanomaterials ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 96
Author(s):  
John Jackson ◽  
Helen Burt ◽  
Dirk Lange ◽  
In Whang ◽  
Robin Evans ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Antibacterial Activity ◽  
Silver Nitrate ◽  
Vinyl Alcohol ◽  
Unmet Need ◽  
Chemical Characterization ◽  
Wound Dressings ◽  
Poly Vinyl Alcohol ◽  
Burn Wound

The prompt treatment of burn wounds is essential but can be challenging in remote parts of Africa, where burns from open fires are a constant hazard for children and suitable medical care may be far away. Consequently, there is an unmet need for an economical burn wound dressing with a sustained antimicrobial activity that might be manufactured locally at low cost. This study describes and characterizes the novel preparation of a silver nitrate-loaded/poly(vinyl alcohol) (PVA) film. Using controlled heating cycles, films may be crosslinked with in situ silver nanoparticle production using only a low heat oven and little technical expertise. Our research demonstrated that heat-curing of PVA/silver nitrate films converted the silver to nanoparticles. These films swelled in water to form a robust, wound-compatible hydrogel which exhibited controlled release of the antibacterial silver nanoparticles. An optimal formulation was obtained using 5% (w/w) silver nitrate in PVA membrane films that had been heated at 140 °C for 90 min. Physical and chemical characterization of such films was complemented by in vitro studies that confirmed the effective antibacterial activity of the released silver nanoparticles against both gram positive and negative bacteria. Overall, these findings provide economical and simple methods to manufacture stable, hydrogel forming wound dressings that release antibiotic silver over prolonged periods suitable for emergency use in remote locations.

Antibacterial electrospun chitosan/poly(vinyl alcohol) nanofibers containing silver nitrate and titanium dioxide

2009 ◽  
Vol 111 (6) ◽  
pp. 2892-2899 ◽  
Author(s):  
Bokgi Son ◽  
Bong-Yeol Yeom ◽  
Sang Hun Song ◽  
Chang-Soo Lee ◽  
Taek Sung Hwang
Keyword(s):  
Titanium Dioxide ◽  
Silver Nitrate ◽  
Vinyl Alcohol ◽  
Poly Vinyl Alcohol

Preparation of poly(acrylic acid)/poly(vinyl alcohol) membrane for the facilitated transport of CO2

2001 ◽  
Vol 81 (4) ◽  
pp. 936-942 ◽  
Author(s):  
Hideto Matsuyama ◽  
Masaaki Teramoto ◽  
Kenji Matsui ◽  
Yoshiro Kitamura
Keyword(s):  
Acrylic Acid ◽  
Vinyl Alcohol ◽  
Facilitated Transport ◽  
Poly Vinyl Alcohol ◽  
Poly Acrylic Acid

Reaction mechanism of thermally-induced electric conduction of poly(vinyl alcohol)–silver nitrate hybrid films

RSC Advances ◽  
2016 ◽  
Vol 6 (61) ◽  
pp. 56728-56737 ◽  
Author(s):  
Yong Gan ◽  
Shibing Bai ◽  
Shouliang Hu ◽  
Xiang Zhao ◽  
Yuefang Li
Keyword(s):  
Reaction Mechanism ◽  
Silver Nitrate ◽  
Metal Nanoparticles ◽  
Vinyl Alcohol ◽  
Hybrid Composites ◽  
Functional Materials ◽  
Poly Vinyl Alcohol ◽  
Electric Conduction ◽  
Hybrid Films ◽  
Thermally Induced

The combination of metal nanoparticles and polymers endows their hybrid composites with a number of unique features and opens a new way to fabricate novel functional materials.

scholarly journals Effect of silver nitrate on the thermal processability of poly(vinyl alcohol) modified by water

RSC Advances ◽  
2018 ◽  
Vol 8 (5) ◽  
pp. 2804-2810 ◽  
Author(s):  
Qing Liu ◽  
Ning Chen ◽  
Shibing Bai ◽  
Wenzhi Li
Keyword(s):  
Silver Nitrate ◽  
Vinyl Alcohol ◽  
Poly Vinyl Alcohol

AgNO3 chelates with PVA and water to constrain water and urge more water to play the role of plasticizer.

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