Nanotechnology-Enabled Food Packaging: Advances in Preservation, Safety, and Shelf-Life Extension

Abstract

The integration of nanotechnology into food packaging marks a paradigm shift toward improved preservation, safety, and sustainability. This review explores recent advances in nanotechnology-based packaging, emphasizing mechanisms, applications, and transformative potential in the food industry. Nanotechnology, involving the manipulation of materials at the nanoscale (1–100 nm), enables the creation of nanocomposites and nanostructured films with enhanced mechanical, thermal, and functional properties. These nanosystems facilitate targeted interaction with food matrices, leading to improved quality and protection. Key nanomaterials such as silver nanoparticles (AgNPs), zinc oxide nanoparticles (ZnO NPs), graphene oxide (GO), carbon nanotubes (CNTs), and titanium dioxide nanoparticles (TiO2 NPs) are examined for antimicrobial, barrier-enhancing, and smart sensing properties. Market trends indicate rapid growth, with the nanotechnology food packaging sector projected to reach $63.4 billion by 2034 at an 11.3% CAGR. Despite this promise, challenges persist regarding safety evaluations, regulatory clarity, and consumer acceptance. Emerging directions include intelligent packaging, nanoencapsulation technologies, and biodegradable materials for sustainable solutions. Overall, nanotechnology presents vast opportunities for food quality preservation and extended shelf life, but standardized regulations and comprehensive safety assessments are crucial. Future research should focus on real-time monitoring systems and eco-friendly nanomaterials to address global food security.