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<p>The present study investigates the abilities of MoS<sub>2</sub>-Au plasmonic nanostructures for highly sensitive SPR biosensors and efficient photocatalysts for organic pollutant degradation. For instance, COMSOL Multiphysics is utilized to simulate the novel multilayered MoS<sub>2</sub>-Au grating on glass substrates in order to improve the sensitivity of SPR biosensors and UV–visible light degradation efficiency of organic pollutants. The optimized configuration is obtained by keeping the periodicity of the proposed model constant (720&#xa0;nm) and by varying slit widths in order to enhance electric and magnetic field interactions. The inclusion of Au nanoparticles that promote light absorption and charge separation significantly improves the photocatalytic degradation of organic pollutants like methylene blue (MB), methomyl, methylene orange (MO), phenol, and tetracycline (TC). Additionally, MoS<sub>2</sub>-Au nanostructures exhibit enhanced sensitivity in detecting liquid and gas analytes, making them highly effective for various environmental, food safety, and medical applications.</p>

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Plasmonic MoS2-Au Nanostructures: Dual Approach to Environmental and Biosensing Applications

  • 期刊论文

  • 发表日期：

    2025年7月15日

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  • Sayyam Ahsan,
  • Rana Mustansar Munir,
  • Tahir Iqbal,
  • Nabil Al-Zaqri

摘要

The present study investigates the abilities of MoS2-Au plasmonic nanostructures for highly sensitive SPR biosensors and efficient photocatalysts for organic pollutant degradation. For instance, COMSOL Multiphysics is utilized to simulate the novel multilayered MoS2-Au grating on glass substrates in order to improve the sensitivity of SPR biosensors and UV–visible light degradation efficiency of organic pollutants. The optimized configuration is obtained by keeping the periodicity of the proposed model constant (720 nm) and by varying slit widths in order to enhance electric and magnetic field interactions. The inclusion of Au nanoparticles that promote light absorption and charge separation significantly improves the photocatalytic degradation of organic pollutants like methylene blue (MB), methomyl, methylene orange (MO), phenol, and tetracycline (TC). Additionally, MoS2-Au nanostructures exhibit enhanced sensitivity in detecting liquid and gas analytes, making them highly effective for various environmental, food safety, and medical applications.