Chemically Modified Nanoparticles for Enhanced Antioxidant and Antimicrobial Properties with Cinnamon Essential Oil

Aaron A. López-Cano, Verónica Martínez-Aguilar, Mariana G. Peña-Juárez, Ricardo López-Esparza, Enrique Delgado-Alvarado, Emmanuel J. Gutiérrez-Castañeda, Mayra Del Angel-Monroy, Elías Pérez, Agustín L. Herrera-May*, J. Amir Gonzalez-Calderon*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

We explored the potential of different nanoparticles (TiO2, CaCO3, and Al2O3), considering their pure form and modified with cinnamon essential oil (CEO). These materials were characterized using various techniques, including FTIR spectroscopy, XRD analysis, TGA, and SEM. The interaction between CEO and nanoparticles changed depending on the nanoparticle type. Al2O3 nanoparticles exhibited the strongest interaction with CEO, increasing their antioxidant capacity by around 40% and their transfer of antimicrobial properties, particularly against Gram-negative bacteria. In contrast, TiO2 and CaCO3 nanoparticles showed limited interaction with CEO, resulting in lower antioxidant capacity and antimicrobial activity. Incorporating pure and CEO-modified nanoparticles into polylactic acid (PLA) films improved their mechanical and thermal properties, which are suitable for applications requiring greater strength. This research highlights the potential of metal oxide nanoparticles to enhance the antimicrobial and antioxidant capabilities of polymers. In addition, incorporating cinnamon essential oil can increase the antioxidant and antimicrobial effectiveness of the metal oxide nanoparticles and improve the mechanical and thermal properties of PLA films. Thus, these PLA films exhibit favorable characteristics for active packaging applications.

Original languageEnglish
Article number2057
JournalAntioxidants
Volume12
Issue number12
DOIs
StatePublished - Dec 2023

Bibliographical note

Publisher Copyright:
© 2023 by the authors.

Keywords

  • antimicrobial properties
  • antioxidant activity
  • cinnamon essential oil
  • nanoparticles
  • polylactic acid films

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