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<p>Carbon-incorporated zinc oxide (CZO) samples were prepared using a wet chemical method. The carbon doping on structural, morphological and spectral features of CZO films were studied. The incorporation of C into ZnO can enhance surface bioactivity. Carbon doping enhances film roughness, reduces sheet resistance, and minimizes bandgap and recombination of electron-hole pairs. It mainly activates reactive oxygen species and causes oxidative stress, which damages the cell membrane and prevents bacterial growth, which leads to cell death. Variations in the dominant XRD peak (101) of CZO samples yielded an average crystallite size of ∼50&#xa0;nm. The Raman peaks at ∼342&#xa0;cm<sup>− 1</sup>, 444&#xa0;cm<sup>− 1</sup>and 1163&#xa0;cm<sup>− 1</sup> in CZO 0 thin film were shifted and broadened in doped CZO film. The doped CZO films show a lower optical bandgap of ∼ 3.10&#xa0;eV than the CZO 0 film. The antibacterial activities for prepared CZO films were conducted by the zone inhibition method for the effective use of films in biomedical applications.</p>

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Boosting of bio bacterial inactivation and properties of morphology tuned carbon anchored ZnO films

  • 期刊论文

  • 发表日期：

    2025年5月22日

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  • B. K. Balachandar,
  • G. Lakshmi,
  • C. Thiyakarajan,
  • K. Sethuraman

摘要

Carbon-incorporated zinc oxide (CZO) samples were prepared using a wet chemical method. The carbon doping on structural, morphological and spectral features of CZO films were studied. The incorporation of C into ZnO can enhance surface bioactivity. Carbon doping enhances film roughness, reduces sheet resistance, and minimizes bandgap and recombination of electron-hole pairs. It mainly activates reactive oxygen species and causes oxidative stress, which damages the cell membrane and prevents bacterial growth, which leads to cell death. Variations in the dominant XRD peak (101) of CZO samples yielded an average crystallite size of ∼50 nm. The Raman peaks at ∼342 cm− 1, 444 cm− 1and 1163 cm− 1 in CZO 0 thin film were shifted and broadened in doped CZO film. The doped CZO films show a lower optical bandgap of ∼ 3.10 eV than the CZO 0 film. The antibacterial activities for prepared CZO films were conducted by the zone inhibition method for the effective use of films in biomedical applications.