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Synthesis and characterization of chitosan with Montmorillonite nanocomposite (CNC) with enhanced antibacterial activity

Research Paper | August 20, 2022

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T. Shanmugavadivu, P. Bhuvaneswari, G. Sabeena, G. Annadurai, E. Sindhuja

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J. Bio. Env. Sci.21( 2), 148-156, August 2022


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Biopolymer chitosan nanocomposites have been synthesized using chitosan nanoparticles with the addition of montmorillonite. Here montmorillonite (MMT) acts as a nanofiller and diluted acetic acid is used as a solvent for dissolving chitosan and dispersing montmorillonite with chitosan nanoparticles. Morphology and properties of chitosan nanocomposites with and without acetic acid residue have been studied compared with those of pure chitosan. The effect of the acetic acid residue of chitosan and MMT loading in nanocomposites has been investigated. The characterization shows that the XRD Spectrum deceived that the crystallinity of the synthesized chitosan nanocomposite. FTIR spectrum revealed that the presence of elements in chitosan nanocomposites. The surface morphology of chitosan nanocomposites that were solid shaped was determined by SEM analysis, and the presence of silica and oxygen were confirmed by EDAX analysis. These prepared chitosan nanocomposites have been characterized by X‐ray diffraction (XRD), Scanning electron microscopy (SEM-EDAX), Ultra Violet Spectroscopy (UV), Fourier Transform Infrared Spectroscopy (FTIR), and Particle Size Analyser (PSA). The antibacterial activity of Chitosan nanocomposite shows that the antibacterial zone of inhibition between 0.9 to 1.5mm at the concentration of 10, 20, 40, 80µl against Pseudomonas, Enterobacter, Bacillus.


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Synthesis and characterization of chitosan with Montmorillonite nanocomposite (CNC) with enhanced antibacterial activity

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