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All Journal JURNAL KIMIA SAINS DAN APLIKASI
Ayu Safirah
Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Negeri Semarang, Semarang|Universitas Negeri Semarang|Indonesia
Chemical Engineering, Chemistry & Bioengineering Chemistry Engineering

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Synthesis and Characterization of Silver Nanoparticles-Chitosan Beads as Antibacterial Agents Ayu Safirah; Atik Rismawati; Mohammad Alauhdin; Sri Wardani
Jurnal Kimia Sains dan Aplikasi Vol 28, No 1 (2025): Volume 28 Issue 1 Year 2025
Publisher : Chemistry Department, Faculty of Sciences and Mathematics, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jksa.28.1.47-52

Abstract

One of the key innovations in silver nanoparticle (AgNPs) material development is the formation of AgNPs/chitosan beads, which exhibit enhanced properties and broader functionality compared to chitosan or AgNPs alone. In this study, AgNPs/chitosan beads were synthesized using glutaraldehyde as a binding agent and sodium citrate as a reducing agent—both of which are safe and non-toxic, enabling broader applications. The synthesized beads were characterized to assess their chemical and physical properties, including functional groups, morphology, and crystallinity. Characterization results confirmed the successful cross-linking of chitosan by glutaraldehyde, enhancing the material’s physical and chemical strength. The chitosan beads appeared white, while AgNPs/chitosan beads were brownish, with an average bead size of 1.99 mm. X-ray diffraction analysis revealed that the silver in the chitosan beads exhibited a face-centered cubic crystal structure. Antibacterial testing demonstrated that AgNPs/chitosan beads exhibited superior antibacterial activity compared to chitosan beads, attributed to the release of Ag+ ions from the matrix.
Co-Authors Atik Rismawati Mohammad Alauhdin Sri Wardani