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Green Synthesis of Zinc Oxide Nanoparticles by Justicia adhatoda Leaves and Their Antimicrobial Activity
Author(s) -
Pachaiappan Rekha,
Rajendran Saravanan,
Ramalingam Gomathi,
Vo Dai-Viet N.,
Priya P. Mohana,
Soto-Moscoso Matias
Publication year - 2021
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.202000470
Subject(s) - zinc , antimicrobial , aspergillus flavus , aspergillus niger , chemistry , staphylococcus aureus , nuclear chemistry , zinc nitrate , nanoparticle , microbiology and biotechnology , biochemistry , food science , organic chemistry , bacteria , biology , nanotechnology , materials science , genetics
Zinc oxide is recognized as one of the best antimicrobial agents. Zinc oxide nanoparticles were fabricated through a green approach using zinc sulfate, zinc nitrate, and zinc acetate dihydrate as precursors and an extract of Justicia adhatoda leaves as a reducing agent. The synthesized zinc oxide nanoparticles were checked for their antimicrobial activity against the bacterial strains Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa , and the fungal strains Aspergillus niger, Aspergillus flavus , and Aspergillus fumigates . All three zinc oxide nanoparticles were found to inhibit the growth of microbes by the release of zinc ions and production of reactive oxygen species followed by destruction of microbes. Antimicrobial results of zinc oxide nanoparticles from the three different precursors were compared.