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<p>As one of the most common medical dressings, imparting effective antibacterial properties to cotton (COT) fabric is a crucial strategy for preventing bacterial infections. To achieve the continuous release of silver ions, a novel one-step hydrothermal approach was developed by integrating reduced graphene oxide (rGO) and silver nanoparticles (AgNPs) into the fabric, resulting in the in situ growth of rGO/Ag aerogel on the surface of the cotton fabric (rGO/Ag/COT), and forming a new type of structured medical antibacterial dressing. Various analytical methods (including SEM, XRD, plate counting method, flow cytometry, and cytotoxicity) were employed to investigate the structure and properties of the rGO/Ag/COT dressing. The results indicated that, the rGO/Ag aerogel has been embedded within COT fabric via ester-based bonding. The rGO/Ag/COT dressing demonstrated a remarkable antimicrobial efficacy of 99.9% against Escherichia coli and Staphylococcus aureus, owned the ability to continuously release silver ions over a period of several days, and generated a significant amount of reactive oxygen species within the bacterial cells. Additionally, the rGO/Ag/COT dressing displayed the in vitro cytotoxicity of grade 1 and excellent biocompatibility. These implied this strategy provides more ideas for the field of medical dressings through the combination of aerogels and textiles.</p>

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One-step construction of reduced graphene/silver nanogel interpenetrating cotton fabric antimicrobial dressing and its performance

  • 期刊论文

  • 发表日期：

    2025年6月25日

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  • Baoxia Xue,
  • Jiaxin Feng,
  • Chunyan Zhang,
  • Zhao An,
  • Ziyang Shao,
  • Jing Liu,
  • Mei Niu,
  • Li Zhang

摘要

As one of the most common medical dressings, imparting effective antibacterial properties to cotton (COT) fabric is a crucial strategy for preventing bacterial infections. To achieve the continuous release of silver ions, a novel one-step hydrothermal approach was developed by integrating reduced graphene oxide (rGO) and silver nanoparticles (AgNPs) into the fabric, resulting in the in situ growth of rGO/Ag aerogel on the surface of the cotton fabric (rGO/Ag/COT), and forming a new type of structured medical antibacterial dressing. Various analytical methods (including SEM, XRD, plate counting method, flow cytometry, and cytotoxicity) were employed to investigate the structure and properties of the rGO/Ag/COT dressing. The results indicated that, the rGO/Ag aerogel has been embedded within COT fabric via ester-based bonding. The rGO/Ag/COT dressing demonstrated a remarkable antimicrobial efficacy of 99.9% against Escherichia coli and Staphylococcus aureus, owned the ability to continuously release silver ions over a period of several days, and generated a significant amount of reactive oxygen species within the bacterial cells. Additionally, the rGO/Ag/COT dressing displayed the in vitro cytotoxicity of grade 1 and excellent biocompatibility. These implied this strategy provides more ideas for the field of medical dressings through the combination of aerogels and textiles.