PJB-2017-139
EVALUATION OF EFFICIENCY OF DIFFERENT PLANTS TO DEVELOP SILVER NANOPARTICLES
SUMERA JAVAD, BAREERA OBAID, AMINA TARIQ, ZUNAIRA IQBAL AND NADIA GHAFFAR
Abstract
Nanotechnology involving nanoparticles is a remarkably important field of present time having various industrial and medicinal uses. Biological production of nanoparticles using plants or microorganisms being eco-friendly is the remotely adopted way to produce these particles. In present study plants used were black pepper (Piper nigrum), cloves (Syzygium aromaticum), red chili (Capsicum annuum), cinnamon (Cinnamomum zeylanicum), black cardamom (Amomum subulatum) and tea (Camellia sinensis) for development of nanoparticles using water as solvent. After being treated with silver nitrate, color of all plants extracts changed, indicating the formation of silver nanoparticles. The amount and efficiency of these nanoparticles was evaluated by testing their antibacterial activity against two bacterial strains named Bordetella petrussis (human pathogen) and Xanthomonas axonopodis (plant pathogen). It was found that silver nanoparticles showed larger inhibition zones for both bacterial species as compared to their relative pure plant extracts. Results also revealed that for bacterial specie Bordetella petrussis, the most activity was shown by silver nanoparticles of clove extract with an inhibition zone of 32mm. For the bacterial strain Xanthomonas axonopodis the largest inhibition zone of 23.4mm was formed by silver nanoparticles of black cardamom extract showing the most effective antibacterial activity. It was concluded that antibacterial drugs can be formulated from these nanoparticles with maximum efficiency.
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