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PreprintCC BYChemRxiv

Fabrication of a Bimetallic NiFe-Prussian Blue-MoS2 Nano-heterojunction for NIR-Triggered Antibacterial Activity

  • Chandana Kumar1
  • Krishna S Bharadwaj2,3
  • Govinakere M. Dhanush4
  • Sharat Sarmah2,3
  • Komal Jaiswal2,3
  • Prashantha Kalappa1
  • Sudhanva M. Srinivasa5,6
  • Yarabahally R Girish1
6 affiliations
  1. 1Department of Chemistry, Adichunchanagiri School of Natural Sciences, Center for Research and Innovations, Adichunchanagiri University, B.G. Nagara,, Mandya District, Karnataka, India, 571448
  2. 2Department of Organic Chemistry
  3. 3Indian Institute of Science
  4. 4Center for Research and Innovations, Adichunchanagiri University, B.G. Nagara,, Mandya District, Karnataka, India, 571448
  5. 5Adichunchanagiri Institute for Molecular Medicine
  6. 6Adichunchanagiri Institute of Medical Sciences, Adichunchanagiri University
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Abstract

Bacterial infections continue to pose a major threat to human health globally, and the rapid emergence of antibiotic-resistant microorganisms has created an urgent need for development of effective non-antibiotic therapeutic strategies for pathogen eradication. In this work, a series of peroxidase-like NiFe-PB@MoS 2 (PB: Prussian Blue) heterostructured nanocomposite (NFPPM) catalysts were successfully synthesised to achieve significantly enhanced antibacterial activity. In the prepared heterostructure, MoS2 nanoflowers were decorated with NiFe-PB nanoparticles through an in situ growth process. The incorporation of NiFe-PB effectively improved the catalytic and photothermal activity of MoS 2 under NIR irradiation. After 10 min of NIR exposure, the NFPPM nanocomposite exhibited remarkable antibacterial efficiency against Staphylococcus aureus Escherichia coli . Peroxidase-like nanozymes have been extensively explored in various biomedical applications because of their excellent catalytic properties. The as-prepared NFPPM demonstrated enhanced peroxidase-like activity, leading to superior antibacterial performance. Furthermore, this work provides a promising strategy based on adhesive nanozymes that can closely interact with bacterial surfaces, offering valuable insight into the design of highly efficient heterojunction-containing photocatalysts with superior antibacterial activity.

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Cite

BibTeXRIS
BibTeX
@misc{kumar2026fabrication,
  title = {{Fabrication of a Bimetallic NiFe-Prussian Blue-MoS2 Nano-heterojunction for NIR-Triggered Antibacterial Activity}},
  author = {Chandana Kumar and Krishna S Bharadwaj and Govinakere M. Dhanush and Sharat Sarmah and Komal Jaiswal and Prashantha Kalappa and Sudhanva M. Srinivasa and Yarabahally R Girish},
  howpublished = {ChemRxiv},
  year = {2026},
  month = oct,
  doi = {10.26434/chemrxiv.15010907/v1},
  url = {https://chemrxiv.org/doi/full/10.26434/chemrxiv.15010907/v1},
  note = {CC BY},
}
RIS
TY  - UNPB
TI  - Fabrication of a Bimetallic NiFe-Prussian Blue-MoS2 Nano-heterojunction for NIR-Triggered Antibacterial Activity
AU  - Chandana Kumar
AU  - Krishna S Bharadwaj
AU  - Govinakere M. Dhanush
AU  - Sharat Sarmah
AU  - Komal Jaiswal
AU  - Prashantha Kalappa
AU  - Sudhanva M. Srinivasa
AU  - Yarabahally R Girish
PY  - 2026
DA  - 2026/10/22
PB  - ChemRxiv
DO  - 10.26434/chemrxiv.15010907/v1
UR  - https://chemrxiv.org/doi/full/10.26434/chemrxiv.15010907/v1
AB  - Bacterial infections continue to pose a major threat to human health globally, and the rapid emergence of antibiotic-resistant microorganisms has created an urgent need for development of effective non-antibiotic therapeutic strategies for pathogen eradication. In this work, a series of peroxidase-like NiFe-PB@MoS 2 (PB: Prussian Blue) heterostructured nanocomposite (NFPPM) catalysts were successfully synthesised to achieve significantly enhanced antibacterial activity. In the prepared heterostructure, MoS2 nanoflowers were decorated with NiFe-PB nanoparticles through an in situ growth process. The incorporation of NiFe-PB effectively improved the catalytic and photothermal activity of MoS 2 under NIR irradiation. After 10 min of NIR exposure, the NFPPM nanocomposite exhibited remarkable antibacterial efficiency against Staphylococcus aureus Escherichia coli . Peroxidase-like nanozymes have been extensively explored in various biomedical applications because of their excellent catalytic properties. The as-prepared NFPPM demonstrated enhanced peroxidase-like activity, leading to superior antibacterial performance. Furthermore, this work provides a promising strategy based on adhesive nanozymes that can closely interact with bacterial surfaces, offering valuable insight into the design of highly efficient heterojunction-containing photocatalysts with superior antibacterial activity.
ER  -