Synthesis of Sodium Alginate–Silver Nanocomposites Using Plasma Activated Water and Cold Atmospheric Plasma Treatment
Peer reviewed, Journal article
MetadataShow full item record
In this study, sodium alginate (SA)-based, eco-friendly nanocomposites films were synthesized for potential food packaging applications using silver nitrate (AgNO3 ) as the metal precursor, reactive nitrogen and oxygen species (RNOS) created within plasma activated water (PAW), or through cold plasma treatment (CP) as reducing agent and SA as stabilizing agent. The formation of silver nanoparticles (AgNPs) was confirmed via the absorption peaks observed between 440 and 450 nm in UV-vis spectroscopy. The tensile strength (TS) and tensile modulus (TM) of the nanocomposite films were significantly higher than those of the SA films. An increase in the TS was also observed as the AgNP concentration was increased from 1 to 5 mM. The storage modulus (G') of the nanocomposite solution was higher than that of the SA solution. The synthesis of AgNPs resulted both in a higher solution viscosity and a more marked shear-thinning effect. The synthesized AgNPs showed antimicrobial activity against both Gram-positive (Staphylococcus aureus) and Gram-negative (Escherichia coli) bacteria. The AgNPs were spherical in shape with an average size of 22 nm.
Showing items related by title, author, creator and subject.
Syndecan-4 regulates muscle differentiation and is internalized from the plasma membrane during myogenesis Rønning, Sissel Beate; Carlson, Cathrine Rein; Stang, Espen; Kolset, Svein Olav; Hollung, Kristin; Pedersen, Mona Elisabeth (Peer reviewed; Journal article, 2015)The cell surface proteoglycan syndecan-4 has been reported to be crucial for muscle differentiation, but the molecular mechanisms still remain to be fully understood. During in vitro differentiation of bovine muscle cells ...
Towards the Next-Generation Disinfectant: Composition, Storability and Preservation Potential of Plasma Activated Water on Baby Spinach Leaves Vaka, Mette Risa; Sone, Izumi; Álvarez, Rebecka García; Walsh, James Leon; Prabhu, Leena; Sivertsvik, Morten; Noriega Fernández, Estefanía (Peer reviewed; Journal article, 2019)
Effect of citric acid and plasma activated water on the functional properties of sodium alginate for potential food packaging applications Sharmin, Nusrat; Sone, Izumi; Walsh, James Leon; Sivertsvik, Morten; Noriega Fernández, Estefanía (Peer reviewed; Journal article, 2021)n this study, cold plasma activated water (PAW) was used in the preparation of sodium alginate (SA) solution and the effect of reactive oxygen and nitrogen species (RONS), low pH and high oxidation-reduction potential on ...