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Engineering active Packaging with MOFs: functional nanomaterials against resistant foodborne pathogens
The present work consolidates a review of the state of the art on the potential of metal-organic frameworks (MOFs) as functional nanomaterials incorporated into active packaging systems for the inactivation of multidrug-resistant (MDR) pathogens associated with food. Methodologically, a systematic review of recent scientific literature was conducted, using a descriptive and retrospective approach based on theoretical methods such as analytical-synthetic, historical-logical, inductive-deductive, and systemic-structural, as well as a co-occurrence analysis of keywords using VOSviewer, delimited to the period 2016-2026. The bibliometric analysis allowed for the examination of synthesis routes (solvothermal, sonochemical, and green cyclodextrin-MOFs) and incorporation techniques into polymeric matrices (solvent casting); highlighting that nanostructures with high porosity and surface area can encapsulate bioactive agents such as carvacrol or thymol, achieving a controlled release sensitive to pH or humidity stimuli; which enables them to exert bactericidal action through the gradual release of metal ions and the generation of reactive oxygen species (ROS). It is concluded that MOFs, especially those based on cyclodextrins (CD-MOFs), represent revolutionary platforms for food safety. However, there are still limitations such as aqueous instability and scalability.