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May 7, 2026Food Additives & Contaminants Part A0 citationsOpen Access

Migration of ionic and nanoparticulate zinc from nanocellulose/ZnO nanoparticle films: morphology-dependent behaviour and modelling

AMAna Rita MendesUniversidade Católica Portuguesa OGOtmar GeissEuropean Commission IBIvana BianchiEuropean Commission

Key Points

To investigate the migration of ionic and nanoparticulate zinc from nanocellulose/ZnO nanoparticle films and its implications for food packaging safety.
Analyzing the morphology-dependent behavior of zinc in nanocellulose films
Using kinetic modeling to assess migration dynamics
Employing multi-analytic approaches for safety evaluation
Confirmed diffusion-controlled release of zinc from films
Demonstrated significant migration of zinc in certain conditions
Highlighted the importance of modeling for safety assessment in food packaging applications

Abstract

, while Weibull β < 1, confirmed diffusion-controlled release. These findings confirm the potential of NC/ZnO nanocomposites for food packaging applications and highlight the importance of combining multi analytics with kinetic modelling to support safety assessment.

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