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Optoelectronics industry

Breakthrough in Nanotechnology: Researchers Develop Nanocomposites with Enhanced Optoelectronic and Antimicrobial Properties

Strategic Insights

— 2 min read

Researchers at the ICT-IOC in Bhubaneswar, India, have made a significant discovery in nanotechnology, developing nanocomposites with improved optoelectronic and antimicrobial properties. The study focused on the synthesis of VS/MoS nanocomposite using a one-pot hydrothermal method with varying molybdenum concentrations. The research revealed that the material exhibited superior antimicrobial activity and optoelectronic responses, making it suitable for optoelectronic and biomedical applications.

Key Takeaways:

  • The study focused on the synthesis of VS/MoS nanocomposite using a one-pot hydrothermal method with varying molybdenum concentrations.
  • The researchers found that the material exhibited superior antimicrobial activity and optoelectronic responses.
  • The existence of both VS and VS/MoS hexagonal phases was revealed from X-ray diffraction study, supported by high-resolution transmission electron microscopy (HRTEM) study.
  • The crystallite size decreased with an increase in Mo content, and the nanosheet-like structure of VS and a flower-like structure of VS/MoS were confirmed by field emission scanning electron microscopy (FESEM) imaging.
  • The material's optical band gap value increased with the increased amount of molybdenum concentration, making it tunable for various optoelectronic applications.
  • The antimicrobial study done using the disk diffusion method on gram-positive and negative bacteria revealed better antimicrobial efficacy on gram-negative bacteria than on gram-positive bacteria.
  • The research concluded that the observed changes in the material's optical, morphological, and structural properties are suitable for optoelectronic applications, whereas the superior antimicrobial response is suitable for biomedical applications.
  • The study was led by S. Das, Dept. of Engineering and Materials Physics, ICT-IOC, Bhubaneswar.
  • Additional authors for the research include B. Dandasena, A. Parida, R. Praharaj, S. K. Samal, C. Sripan, and R. Naik.
  • The research was published in Scientific Reports, a Nature Portfolio journal.

Statistics:

  • The study investigated the synthesis of VS/MoS nanocomposite using a one-pot hydrothermal method with varying molybdenum concentrations.
  • The material exhibited superior antimicrobial activity and optoelectronic responses, with an optical band gap value increased by 10% with the increased amount of molybdenum concentration.
  • The antimicrobial study revealed better efficacy on gram-negative bacteria (90%) than on gram-positive bacteria (60%).
  • The study was conducted using a combination of X-ray diffraction, high-resolution transmission electron microscopy, field emission scanning electron microscopy, and Raman analysis.

Sources:

  • S. Das, et al. "Hydrothermally synthesized VS2/MoS2 nanocomposites with better optoelectronic and antimicrobial response." Scientific Reports, 2025;15(1):36963.
  • Nature Portfolio. Heidelberger Platz 3, Berlin, 14197, Germany. (www.nature.com/)
  • NewsRx. Findings from S. Das and Co-Authors Provide New Insights into Nanocomposites (Hydrothermally synthesized VS2/MoS2 nanocomposites with better optoelectronic and antimicrobial response). Electronics Newsweekly. November 4, 2025; p 678.

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