Chitosan and soy protein are abundantly available renewable biopolymers. The combination of the nano-sized powders and the biopolymer matrix will result in the formation of bio-nanocomposites. Due to bactericidal properties, silver nanoparticles are widely used in the medical applications. Chitosan and soy protein based bio-nanocomposites can be fabricated by incorporating silver nanoparticles in the biopolymer matrix. The bio-nanocomposites fabricated can be used as antimicrobial packaging which can be considered as an emerging technology that could have a significant impact on life and food safety. Antimicrobial agents in food packaging can control the microbial population and target specific microorganisms to provide greater safety and higher quality products. This newly developed material, discussed in this review paper, thus has potential for use in food and medical industries as well as in biomedical fields. The bio-nanocomposites can also find economically viable applications in water purification technology and in biotechnology.
