Green Synthesis of Silver Nanoparticles using Algaes (Fucus vesiculosus, Euchema spinosus and Gracilaria verrucosa) as Antioxidants and Anticollagenase

Savitri, Evika Sandi ORCID: https://orcid.org/0000-0002-2068-0563 and Minarno, Eko Budi (2025) Green Synthesis of Silver Nanoparticles using Algaes (Fucus vesiculosus, Euchema spinosus and Gracilaria verrucosa) as Antioxidants and Anticollagenase. Presented at The 5th International Conference on Life Science and Technology (ICoLiST), 31 Agustus 2022, Malang.

Text 020068_1_5.0234737.pdf Download (1MB)

Abstract

The green synthesis of silver nanoparticles is an environmentally friendly method to obtain compounds that are
useful as anti-aging candidates. The algae extract used contains secondary metabolites such as terpenoids and flavonoids,
hence it acts as a bio-reductant agent for the production of silver nanoparticles. This research aims to synthesize silver
nanoparticle using algae, antioxidant activity test and anticollagenase enzyme activities of silver nanoparticle algaes are
F.vesiculosus, E. spinosus, and G. verrucosa. The silver nanoparticle character test was performed using a Particle Size
Analyzer (PSA), and Scanning Electron Microscope (SEM). Furthermore, the antioxidant test was conducted using the
DPPH method while the anticollagenase activity test was performed using spectrophotometry with standard collagenase.
The silver nanoparticles produced from Fucus vesiculosus extract had a particle distribution with a size of 74.06 nm. Also,
the particle size distribution from the extract of Euchema spinosum ranges in sizes from 53.70 nm to 100 nm. Meanwhile,
the particle size distribution from the extract of Gracilaria spp has a size of 123.4 nm. The SEM imaging results showed
that the obtained ZnO was generally spherical in shape, but the gap between the particles was not visible. Therefore, the
antioxidant and anticollagenase enzyme activity test results showed that F. vesiculosus > E. spinosum > G. verrucosa,
respectively.

Item Type:	Conference (Speech)
Keywords:	green synthesis, nanoparticle, algae
Subjects:	06 BIOLOGICAL SCIENCES > 0601 Biochemistry and Cell Biology > 060199 Biochemistry and Cell Biology not elsewhere classified
Divisions:	Faculty of Mathematics and Sciences > Department of Biology
Depositing User:	Sandi Savitri
Date Deposited:	05 Dec 2025 22:45

Downloads

Origin of downloads

Actions (login required)

View Item