Antimicrobial Effect of Waterborne Polyurethane-Based Cellulose Nanofibril/Silver Nanoparticles Composites and Acacia concinna (Willd.) DC Extract (Shikakai)

Antimicrobial coatings are becoming increasingly popular in functional material modification and are essential in addressing microbial infection challenges. In this study, the phytochemical and antimicrobial potential of aqueous, 80% methanol and 80% ethanol pod extracts of (Willd.) DC (AC) and its...

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Bibliographic Details
Published in:Polymers 2024-09, Vol.16 (19), p.2683
Main Authors: Taung Mai, Lu Lu, San, H'ng Paik, Aung, Min Min, Uyama, Hiroshi, Mohamed, Ainun Zuriyati, Bahrin, Ezyana Kamal, Masarudin, Mas Jaffri, Mohamad Zulkifli, Azra Afrina Binti, Chew, Tung Woey
Format: Article
Language:English
Subjects:
Antiinfectives and antibacterials
Antimicrobial agents
Carbonyls
Cellulose
Chemicals
Composite materials
Ethanol
Flavonoids
Food packaging
Functional groups
Functional materials
Gram-positive bacteria
Metabolites
Methanol
Microorganisms
Nanocomposites
Nanomaterials
Nanoparticles
Phenols
Polyurethane resins
Saponins
Silver
Sulfuric acid
Surface plasmon resonance
Temperature
Terpenes
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Summary:Antimicrobial coatings are becoming increasingly popular in functional material modification and are essential in addressing microbial infection challenges. In this study, the phytochemical and antimicrobial potential of aqueous, 80% methanol and 80% ethanol pod extracts of (Willd.) DC (AC) and its application in the green in situ (one pot) synthesis of silver nanoparticles on Cellulose nano fibrils (CNF) and Waterborne polyurethane (WPU) were prepared. The phytochemical evaluation of crude extracts showed the presence of alkaloids, flavonoids, phenols, tannins, terpenoids, saponins, steroids. The surface plasmon Resonance peak of CNF/AC-AgNPs was 450 nm and the FTIR result confirmed functional groups such as carbonyl, phenols and carboxyl were present which was important for the bio-reduction of silver nanoparticles. The crude AC aqueous pods extract against Gram-positive and Gram-negative bacteria compared with AC ethanol and AC methanol extracts. The WPU/CNF/AC-AgNPs composite dispersion was also good in terms of its antibacterial activities. The WPU/CNF/AC-AgNPs nanocomposites could be applied as bifunctional nanofillers as an antimicrobial agent in food packaging systems and other biological applications.
ISSN:2073-4360
2073-4360
DOI:10.3390/polym16192683