Synthesis and Characterization of Silver Nanoparticles (Ag NPs) Using Sargassum sp. Extract as an Antibacterial in Woven Fabrics

Abstract

The purpose of this study was to synthesize silver nanoparticles (Ag NPs) using Sargassum sp. extract. Synthesized Ag NPs are used as antibacterial agents in woven fabrics. Sargassum sp. mixed with distilled water (1:4 w/v) then heated in the microwave for 1 minute with various power level at 60; 70 and 80. The extract obtained was dropped in an AgNO3 solution then heated in the microwave for 1; 3; 5; 7 and 9 minutes and obtained colloidal silver nanoparticle. Based on analysis using UV Vis obtained that Sargassum sp. extract can be used as a bioreductor in the preparation of silver nanoparticles. The Particle Size Analyzer (PSA) was used to obtain a particle diameter with z-average is 94.8 nm. Ag NPs applications on woven fabrics were characterized using XRD and NIR and antibacterial activity. XRD and NIR results show that Ag NPs has been deposited in woven fabrics, which is indicated by differences in spectra and diffractogram of the samples and blanks of woven fabrics. Woven fabrics deposited with Ag NPs provide antibacterial activity, both against S. aureus and E. coli bacteria.