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All Journal Jurnal Penelitian Pendidikan IPA (JPPIPA)
Hanifah, Fitria Lidini
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Materials Science & Nanotechnology Physics

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Antioxidant and Antibacterial Activities of Silver Nanoparticles Biosynthesized by Leaf Foeniculum vulgare Mill. Ethanolic Extract Susanto, Nindita Clourisa Amaris; Ermawati, Dian Eka; Rohmani, Sholicha; Hanifah, Fitria Lidini; Nafisa, Fadhila Dian; Prastia, Echa Hana; Nurkhasanah, Siti; Megasari, Anis Laela; Dewi, Aptika Oktaviana Trisna
Jurnal Penelitian Pendidikan IPA Vol 11 No 6 (2025): June
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i6.11022

Abstract

Silver nanoparticles can be synthesized using biosynthesis methods assisted by plant extracts and can be applied as antibacterials. Hence, this study aimed to synthesize silver nanoparticles from different concentrations of AgNO3 precursor solutions using ethanol extract from fennel leaves. The influences of various AgNO3 concentrations and the volume ratios of AgNO3 solutions and leaf extracts on the activities were observed. The samples were investigated using a UV-Vis spectrophotometer, and the Surface Plasmon Resonance (SPR) absorbance was attained at 410-415 nm, representing the silver nanoparticle formation. The findings showed that the optimal ratio of precursor solution and extract was 10:1. In contrast, the optimal temperature was at 70 ° C. The size of nanoparticles was estimated using the Particle Size Analyzer (PSA), exhibiting that the different AgNO3 concentrations did not significantly change their sizes. The yields demonstrated that the antioxidant activities for nanoparticles synthesized with AgNO3 concentrations of 0.001 and 0.005 M were 153.56 ± 0.09 μg/mL and 0.005 M 111.42 ± 0.15μg/mL, respectively. The results showed higher inhibition zones of antibacterial activity obtained by silver nanoparticles with 0.005 M AgNO3 as compared to those of 0.001 M AgNO3.
Co-Authors Dewi, Aptika Oktaviana Trisna ERMAWATI, DIAN EKA Megasari, Anis Laela Nafisa, Fadhila Dian Prastia, Echa Hana Rohmani, Sholicha siti nurkhasanah Susanto, Nindita Clourisa Amaris