Synthesis of Chitosan /Alginate/ Silver Nanoparticles Hydrogel Scaffold

¹ Biosensor and Bioengineering Laboratory, MiNT-SRC, Universiti Tun Hussein Onn Malaysia, 86400 Parit Raja, Johor, Malaysia.
² Faculty of Electric and Electronic Engineering, Universiti Tun Hussein Onn Malaysia, 86400 Parit Raja, Johor, Malaysia.
³ Faculty of Mechanical and Manufacturing Engineering, Universiti Tun Hussein Onn Malaysia, 86400 Parit Raja, Johor, Malaysia.

^* Corresponding author: anika@uthm.edu.my

Abstract

This work reports the preparation of silver nanoparticles (AgNPs) and synthesis of natural based hydrogel scaffold with an inclusion of AgNPs, chitosan/alginate/silver nanoparticles. The synthesised hydrogel scaffolds were characterised by using Fourier Transform Infrared Resonance Spectroscopy (FTIR). The FTIR result revealed that the shifting of the three peaks of 3252.95 cm⁻¹ (–OH and –NH₂ stretching), 1591.33 cm⁻¹ (C=O stretching) and 1411.88 cm⁻¹ (N–H stretching) of chitosan/alginate/silver nanoparticles in compared to chitosan/alginate hydrogel indicating the presence of electrostatic interaction of –NH³⁺ in chitosan reacted with the – COO– group of alginate and binding of the silver (Ag). These results indicated that chitosan/alginate/silver nanoparticles were consolidated in the composite system.