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<p>The fabrication of ternary nanocomposites attracts great interest in scientific research worldwide. PVC/PMMA/AgO nanocomposites are prepared by the casting method with various proportions of AgONPs. Analysis of XRD and FTIR spectra exhibited that the structural parameters of PVC/PMMA blend have been affected with increasing nanofiller content. UV–Vis spectra analysis showed that the direct/indirect energy gap are decreased from (5.21/4.92) to (4.86/3.90) eV and the dispersion and oscillation (<i>E</i><sub><i>d</i></sub><i>/E</i><sub><i>o</i></sub>) energies are increased from (1.186/4.437) to (73.323/13.638) eV with increasing the content of AgONPs. Linear/nonlinear optical parameters of PVC/PMMA/AgO nanocomposites are enhanced upon increasing AgONPs content. This study also showed that the antibacterial activity of PVC/PMMA/AgO nanocomposites against Gram-positive bacteria (<i>S. aureus, B. subtilis</i>) and Gram-negative bacteria (<i>E. coli)</i> is enhanced. Generally, PVC/PMMA/AgO nanocomposites show promising potential in the field of flexible optoelectronic devices due to the structure-dependent adjustable optical energy gap and in the medical field for their pronounced antibacterial activity.</p>

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Tuning the structural, optical properties and antibacterial activity of poly(vinyl chloride)/poly(methyl methacrylate)/silver oxide nanocomposites for potential optoelectronic and medical applications

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年11月24日

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  • Wafaa B. Elsharkawy,
  • A. M. Elnemr,
  • Z. M. Elqahtani,
  • H. Elhendawi,
  • M. M. Metwally,
  • T. Fahmy

摘要

The fabrication of ternary nanocomposites attracts great interest in scientific research worldwide. PVC/PMMA/AgO nanocomposites are prepared by the casting method with various proportions of AgONPs. Analysis of XRD and FTIR spectra exhibited that the structural parameters of PVC/PMMA blend have been affected with increasing nanofiller content. UV–Vis spectra analysis showed that the direct/indirect energy gap are decreased from (5.21/4.92) to (4.86/3.90) eV and the dispersion and oscillation (Ed/Eo) energies are increased from (1.186/4.437) to (73.323/13.638) eV with increasing the content of AgONPs. Linear/nonlinear optical parameters of PVC/PMMA/AgO nanocomposites are enhanced upon increasing AgONPs content. This study also showed that the antibacterial activity of PVC/PMMA/AgO nanocomposites against Gram-positive bacteria (S. aureus, B. subtilis) and Gram-negative bacteria (E. coli) is enhanced. Generally, PVC/PMMA/AgO nanocomposites show promising potential in the field of flexible optoelectronic devices due to the structure-dependent adjustable optical energy gap and in the medical field for their pronounced antibacterial activity.