Open AccessAplikasi Antibakteri Nanopartikel Perak (NPAg) Hasil Biosintesis dengan Ekstrak Air Daun Kemangi
Author(s) -
Gusti Ayu Dewi Lestari,
Pande Made Desy Ratnasari,
James Sibarani
Publication year - 2022
Publication title -
kovalen
Language(s) - English
Resource type - Journals
ISSN - 2477-5398
DOI - 10.22487/kovalen.2022.v8.i1.15771
Subject(s) - silver nanoparticle , particle size , nuclear chemistry , chemistry , morphology (biology) , materials science , antibacterial activity , nanoparticle , nanotechnology , analytical chemistry (journal) , chromatography , bacteria , biology , genetics
Nanotechnology is a technology that can be used to overcome several environmental problems. Synthesis of silver nanoparticles (AgNPs) mediated with basil leaf bioreductant with a concentration 0.5% at a temperature of 25⁰C has been carried out. The result of biosynthesis of AgNPs was analyzed using a UV-Vis spectrophotometer in which the SPR band showed the maximum wavelength of 429 nm. The size of AgNPs was determined by a Particle Size Analyzer (PSA), which its size was 86.83 nm. The morphology and elemental content of AgNPs were confirmed using SEM-EDS showing that the shape of AgNPs was irregularly spherical crystals while the EDS results showed a dominant peak at 3 keV indicating silver content. AgNPs showed strong antibacterial activity against Escherechia coli and moderate against Staphylococcus aureus.