Nanotechnology-enabled smart and intelligent food packaging systems

The growing demand for sustainable, high-performance food packaging has accelerated the exploration of nanotechnology as a transformative solution. Conventional plastic packaging, while effective, faces challenges related to environmental persistence, limited functionality, and poor real-time responsiveness. This chapter presents a comprehensive overview of the classification, mechanisms, and integration of nanomaterials into smart and intelligent food packaging systems. It discusses the structural and functional roles of metallic nanoparticles, nanoclays, carbon-based nanostructures, biopolymeric nanomaterials, and hybrid composites, highlighting their impact on barrier properties, antimicrobial activity, and environmental responsiveness. Emphasis is placed on fabrication techniques such as melt compounding, solution casting, electrospinning, and surface functionalization. Furthermore, the chapter explores stimulus-responsive and AI-integrated systems that enable real-time monitoring of food quality, shelf life, and supply chain integrity. By synthesizing recent advances and regulatory considerations, this chapter aims to guide researchers and industry stakeholders in designing nanotechnology-enabled packaging that meets both performance demands and sustainability goals.