Biodegradable Tragacanth Gum Based Silver Nanocomposite Hydrogels and Their Antibacterial Evaluation

Journal Article · Thu Feb 15 04:00:00 EST 2018 · Journal of Polymers and the Environment

DOI:https://doi.org/10.1007/S10924-017-0989-2· OSTI ID:22788241

Rao, Kummara Madhusudhana; Kumar, Anuj ^[1]; Haider, Adnan

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1. Yeungnam University, School of Chemical Engineering (Korea, Republic of)

In this article, biodegradable tragacanth gum (TG) biopolymer based silver nanocomposite hydrogels (SNCHs) were prepared with acrylamide as monomer using a simple redox polymerization method. TG acts as stabilizer to produce uniform and large silver nanoparticles (Ag-NPs) in presence of Terminalia chebula (TC) leaf extract in the hydrogel network. Forier transform infrared spectroscopy demonstrated the structural units of functional groups of polymeric backbone of the hydrogels. The formation of Ag-NPs in TG based hydrogels was confirmed by UV–Vis spectra. The morphology of homogeneously dispersed Ag-NPs throughout hydrogel networks was confirmed by scanning electron microscopy. TEM analysis indicates that Ag-NPs with average diameters of around 5 nm formed within the hydrogel networks. The evaluation of antibacterial activity of Ag-NPs performed against gram-negative Escherichia coli and gram-positive Bacillus subtilis bacteria and obtained results proved that these newly developed hydrogels have great potential for use in wound healing as well as water purification applications.

• OSTI ID: 22788241
• Journal Information: Journal of Polymers and the Environment, Journal Name: Journal of Polymers and the Environment Journal Issue: 2 Vol. 26; ISSN 1566-2543
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ACRYLAMIDE
ANTIMICROBIAL AGENTS
BACILLUS SUBTILIS
BIODEGRADATION
ESCHERICHIA COLI
FOURIER TRANSFORM SPECTROMETERS
GUMS
HYDROGELS
MORPHOLOGY
NANOCOMPOSITES
NANOPARTICLES
POLYMERIZATION
PURIFICATION
SCANNING ELECTRON MICROSCOPY
SILVER
TRANSMISSION ELECTRON MICROSCOPY
VISIBLE SPECTRA
WATER