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<p>This study describes the development of 3D-printed Poly (lactic acid) (PLA) biomaterials functionalized with silver nanoparticles (AgNPs) for antibacterial applications. A novel surface incorporation method was employed, using ethyl acetate (EA) as a pretreatment prior to AgNPs addition for 1, 2, and 3&#xa0;h. Their properties were evaluated with techniques, such as scanning electron microscopy (SEM), atomic force microscopy (AFM), and thermogravimetric analysis (TGA). EA pretreatment promotes homogeneous distribution of AgNPs in PLA and induces significant changes in surface roughness, enhancing antimicrobial efficacy while maintaining acceptable thermal stability.</p> Graphical abstract <p></p>

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Poly(lactic acid) surface modified with silver nanoparticles: Thermal, roughness, and antimicrobial evaluation

  • 期刊论文

  • 发表日期：

    2025年11月10日

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  • L. M. Hernandez Gaytán,
  • Nereyda Niño Martínez,
  • Gabriel A. Martínez Castañón,
  • Daniela Guzman Uribe,
  • Facundo Ruiz,
  • Emmanuel Gutiérrez,
  • S. L. Rodríguez-Reyna

摘要

This study describes the development of 3D-printed Poly (lactic acid) (PLA) biomaterials functionalized with silver nanoparticles (AgNPs) for antibacterial applications. A novel surface incorporation method was employed, using ethyl acetate (EA) as a pretreatment prior to AgNPs addition for 1, 2, and 3 h. Their properties were evaluated with techniques, such as scanning electron microscopy (SEM), atomic force microscopy (AFM), and thermogravimetric analysis (TGA). EA pretreatment promotes homogeneous distribution of AgNPs in PLA and induces significant changes in surface roughness, enhancing antimicrobial efficacy while maintaining acceptable thermal stability.

Graphical abstract