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Abstract <p>The development of biomaterials for tissue engineering has increased interest in the preparation of hydrogels made of biomolecules. But due to some lack in the surface properties of this type of composite, there is a need for modification on the surface either chemically or spectroscopically, or using any other conventional method. Here, we consider a synthetic polymer (PVA) and a natural polymer (pectin) and then synthesized a series of PVA–pectin (PPc) composites utilizing a solvent casting process with a weight ratio of 2:1. So the purpose of our work was to study the surface properties of polyvinyl alcohol (PVA) and pectin composites after low-pressure glow discharge non-thermal plasma treatment (NTP). We use various types of spectroscopic analysis to study the surface morphology of the samples. Studies have been done on the morphology, wettability, swelling, stability, and mechanical features of the prepared PVA/pectin composites. After plasma treatment, the composite becomes more hydrophilic. Also, from FTIR, XRD, and also from theoretical DFT analysis, we can demonstrate the chemical interaction between PVA, pectin, and the cross-linker TEOS. The plasma-treated polymer composites also demonstrated reasonable mechanical strength, thermal analysis, and significant effectiveness against <i>Escherichia coli</i> and <i>Staphylococcus aureus</i> bacteria. <i>Staphylococcus aureus</i> bacteria showed consistently greater levels of bacterial inhibition than <i>E. coli</i> bacteria. The untreated composites exhibit the least amount of bacterial inhibition (*9&#xa0;mm) compared to the plasma-treated composites (*12&#xa0;mm and *15&#xa0;mm for <i>S. aureus</i> and <i>E. coli</i> bacteria, respectively). Degradation analysis was also performed using lysozyme enzyme solution and in soil, and it was discovered that plasma treatment boosts the efficiency. Our findings show that the prepared PVA/pectin composites can be recommended for prospective use as a component of innovative complicated wound dressings and other biological applications.</p> Graphical Abstract <p></p>

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Plasma-Polymerized PVA–Pectin Composites for Surface Modification Using Ar and O2 Cold Plasma

  • 期刊论文

  • 发表日期：

    2025年9月1日

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  • Pranita Panda,
  • Rajesh Kumar Mahanta,
  • Smrutiprava Das

摘要

Abstract

The development of biomaterials for tissue engineering has increased interest in the preparation of hydrogels made of biomolecules. But due to some lack in the surface properties of this type of composite, there is a need for modification on the surface either chemically or spectroscopically, or using any other conventional method. Here, we consider a synthetic polymer (PVA) and a natural polymer (pectin) and then synthesized a series of PVA–pectin (PPc) composites utilizing a solvent casting process with a weight ratio of 2:1. So the purpose of our work was to study the surface properties of polyvinyl alcohol (PVA) and pectin composites after low-pressure glow discharge non-thermal plasma treatment (NTP). We use various types of spectroscopic analysis to study the surface morphology of the samples. Studies have been done on the morphology, wettability, swelling, stability, and mechanical features of the prepared PVA/pectin composites. After plasma treatment, the composite becomes more hydrophilic. Also, from FTIR, XRD, and also from theoretical DFT analysis, we can demonstrate the chemical interaction between PVA, pectin, and the cross-linker TEOS. The plasma-treated polymer composites also demonstrated reasonable mechanical strength, thermal analysis, and significant effectiveness against Escherichia coli and Staphylococcus aureus bacteria. Staphylococcus aureus bacteria showed consistently greater levels of bacterial inhibition than E. coli bacteria. The untreated composites exhibit the least amount of bacterial inhibition (*9 mm) compared to the plasma-treated composites (*12 mm and *15 mm for S. aureus and E. coli bacteria, respectively). Degradation analysis was also performed using lysozyme enzyme solution and in soil, and it was discovered that plasma treatment boosts the efficiency. Our findings show that the prepared PVA/pectin composites can be recommended for prospective use as a component of innovative complicated wound dressings and other biological applications.

Graphical Abstract