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<p>Biological reduction of Graphene Oxide (GO) into reduced Graphene Oxide (rGO) with the help of reducing agents available in tryptone, cotton stalk extract, cell filtrate and biomass of fungus <i>Penicillium restrictum</i> would be cost-effective and environment friendly approach. Also, such rGO can be used to impart multi-functional properties onto a cotton fabric. A GO produced by Hummer’s and Offeman method was subjected to controlled reduction using above mentioned agents. The synthesis of GO and rGO nanoparticles were confirmed by UV–visible, Fluorescence, FTIR and Raman Spectroscopy analyses. The synthesized GO and rGO along with a commercial graphene were evaluated for antibacterial activity against two pathogenic bacteria, <i>Staphylococcus aureus</i> and <i>Klebsiella pneumoniae</i>. A cotton fabric was coated with GO, rGO and graphene by dip coating method and their properties were evaluated. The treated cotton fabrics showed resistivity in the range of ~ 2–9&#xa0;kΩ that confirmed the conversion of resistive cotton into e-conductive fabric. Excellent UV-protection property was exhibited in cotton stalk rGO and biomass rGO coated fabrics with UPF 175 and 98, respectively. The cotton fabrics coated with cell filtrate rGO and biomass rGO showed water repellent activity. Around 60–100% bacterial reduction was observed in GO, rGO and graphene coated fabrics against <i>S. aureus</i> and <i>K. pneumonia</i>. This work opens up the scope for the use of diversified reducing agents for producing rGO having potential applications in smart textiles, electronics, photonics, battery and supercapacitors, health monitoring, biomedical and nanomedicine fields.</p> Graphical abstract <p></p>

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Biological reduction of graphene oxide and its application onto cotton fabric for multifunctional properties

  • 期刊论文

  • 发表日期：

    2026年5月25日

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  • Harshada D. Naik,
  • A. Arputharaj,
  • Charlene D’Souza,
  • Rajesh P. Kadam,
  • Nishant Kambli,
  • Vigneshwaran Nadanathangam

摘要

Biological reduction of Graphene Oxide (GO) into reduced Graphene Oxide (rGO) with the help of reducing agents available in tryptone, cotton stalk extract, cell filtrate and biomass of fungus Penicillium restrictum would be cost-effective and environment friendly approach. Also, such rGO can be used to impart multi-functional properties onto a cotton fabric. A GO produced by Hummer’s and Offeman method was subjected to controlled reduction using above mentioned agents. The synthesis of GO and rGO nanoparticles were confirmed by UV–visible, Fluorescence, FTIR and Raman Spectroscopy analyses. The synthesized GO and rGO along with a commercial graphene were evaluated for antibacterial activity against two pathogenic bacteria, Staphylococcus aureus and Klebsiella pneumoniae. A cotton fabric was coated with GO, rGO and graphene by dip coating method and their properties were evaluated. The treated cotton fabrics showed resistivity in the range of ~ 2–9 kΩ that confirmed the conversion of resistive cotton into e-conductive fabric. Excellent UV-protection property was exhibited in cotton stalk rGO and biomass rGO coated fabrics with UPF 175 and 98, respectively. The cotton fabrics coated with cell filtrate rGO and biomass rGO showed water repellent activity. Around 60–100% bacterial reduction was observed in GO, rGO and graphene coated fabrics against S. aureus and K. pneumonia. This work opens up the scope for the use of diversified reducing agents for producing rGO having potential applications in smart textiles, electronics, photonics, battery and supercapacitors, health monitoring, biomedical and nanomedicine fields.

Graphical abstract