Green synthesis
and characterization of chitosan doped nickel oxide nanocomposites using Euphorbia
hirta and its antimicrobial activity
Deva Vijila L., Leema Rose G., Aavila Thanga Bhoosan S., Anitha C. and Jaya Rajan
M.
Res. J. Chem. Environ; Vol. 26(12); 92-98;
doi: https://doi.org/10.25303/2612rjce092098; (2022)
Abstract
Chitin is extracted from shells of shrimps and characterized using UV-drs spectroscopy.It
is converted to chitosan by the process of deacetylation and to nanochitosan by
the process of sonication.Chitosan and nanochitosan are characterised using UV-Vis
and FTIR spectroscopy. Nickel oxide nanoparticles (NiO) are green synthesised from
Nickel chloride crystals using Euphorbia hirta medicinal plant leaf extract which
contains alkanes, triterpenes, phytosterols, tannins, polyphenols and flavanoids
as reducing agent. E.hirta serves as a good medicine for treating female disorders,
respiratory ailments, worm infestations in children, dysentery, jaundice, pimples,
gonorrhea, digestive problems and tumors.The formation of nano NiO is characterised
by UV-Vis, FTIR and XRD spectroscopic techniques.
The nano NiO particles are doped with nanochitosan and the antimicrobial activity
of the resulting composite is analysed with Staphylococcus aureus and Pseudomonas
aeruginosa bacterium using amikacin as the control. The results shows the enhancement
in the antibacterial nature of the composite.
