Cellulose nanofibrils/AgNP nanostructured coating on smart packaging for indication of H2O2 in milk.
COSTA, Kelcilene Bruna Teodoro; BONDANCIA, Thalita Jessika; SANFELICE, Rafaela Cristina; BALOGH, Debora Terezia; DENNEULIN, Aurore; CORRÊA, Daniel Souza; MATTOSO, Luiz Henrique Capparelli; BRAS, Julien.
COSTA, Kelcilene Bruna Teodoro; BONDANCIA, Thalita Jessika; SANFELICE, Rafaela Cristina; BALOGH, Debora Terezia; DENNEULIN, Aurore; CORRÊA, Daniel Souza; MATTOSO, Luiz Henrique Capparelli; BRAS, Julien.
Abstract: Colorimetric sensors offer user-friendly means of analysis, and do not require wired connections or antennas. These attributes make them suitable for integration into intelligent packaging systems, which enables real-time monitoring of product quality throughout the production and logistics chain, extending to the end consumer. Here we developed colorimetric sensors for detecting H2O2 adulteration in milk with a simple and cost-effective approach. Specifically, the sensor was manufactured using paper and can be adapted for use as labels or seals for commercial packaging. A nanohybrid formulation comprising TEMPO-oxidized cellulose nanofibrils and silver nanoparticles (AgNP) was used to modify the paper surface via bar coating technique. Nanocellulose acted as a stabilizer and nucleating site for the synthesis of AgNP and facilitated the homogeneous deposition of the nanohybrid formulation onto the paper. Applying CNF/AgNP improved the paper's roughness and porosity, resulting in homogeneous samples with stable optical properties. The developed platform demonstrated visible bleaching in the presence of H2O2 within a concentration range of 100 µM to 1 mM, with a detection limit of 74 µM, good selectivity against common interfering molecules found in milk, and suitable response in recovery tests using whole, semi-skimmed and skimmed milk, demonstrating its potential for real samples analysis.
@article={003307205,author = {COSTA, Kelcilene Bruna Teodoro; BONDANCIA, Thalita Jessika; SANFELICE, Rafaela Cristina; BALOGH, Debora Terezia; DENNEULIN, Aurore; CORRÊA, Daniel Souza; MATTOSO, Luiz Henrique Capparelli; BRAS, Julien.},title={Cellulose nanofibrils/AgNP nanostructured coating on smart packaging for indication of H2O2 in milk},journal={International Journal of Biological Macromolecules},note={v. 367, p. 152613-1-152613-12},year={2026}}