5. Conclusion
To summarize, we succeeded in the biological reduction of silver
and gold nanoparticles by M. piperita leaf extract. Silver and gold
nanoparticles were synthesized in ambient conditions and characterization
of synthesized nanoparticles was carried out by UV–Vis
spectroscopy, FT IR and SEM equipped with EDS. It is believed that
phytochemicals present in the extract of M. piperita has reduced
the silver and gold ions into metallic nanoparticles. This may be a
first report that leaf had been sterilized before the extraction, we
assumed to decant surface inhabitant microorganisms. The synthesized
silver and gold exhibited a strong antibacterial activity against
both E. coli and S. aureus. The process for the synthesis of nanoparticles
in large scale using these readily available plant extract may
have commercial viability and to develop studies in the interface
between biology and material science. By using such plant extracts
to develop nanomedicine against various human and veterinary
pathogens.