Abstract Paper


Journal of Functional Materials and Bio-molecules

Title : COMPARATIVE ANALYSIS OF ANTIBACTERIAL POTENTIALS OF POLYOXOMETALATES RUTHENIUM AND COPPER COMPLEXES
Author(s) : N. Rajesh Kumar, L. Alphonse Lazar, S. Jemimah lims, S. Jothi Selvam, B. Mohammad Nawaz, Mohammed Fahad Alam, Yogeshwaran, T Jeyabalan Thavasikani
Article Information : Volume 9 - Issue 02 (December - 2025) , 1139-1145
Affiliation(s) : Department of Chemistry, Sacred Heart College (Autonomous), Tirupattur-635601, Tamilnadu, India.

Abstract :

Polyoxometalates (POMs) are versatile metal–oxygen clusters known for their structural diversity, strong Brønsted acidity, and broad catalytic and biological activities. In this study, two metal-substituted POM complexes, POM-1 and POM-2, were synthesised and thoroughly characterised using UV–visible spectroscopy, Fourier transform infrared spectroscopy (FTIR), and X-ray diffraction (XRD). The FTIR spectra displayed the characteristic vibration bands associated with metal–oxygen frameworks, confirming the successful formation of the POM-based complexes and clearly revealing the fingerprint regions typical of these structures. XRD analysis showed that the crystalline sizes of the synthesised complexes fall within the nanoscale range of 40–80 nm. The antibacterial performance of the complexes was evaluated against both Gram-positive and Gram-negative bacteria, where the copper-doped POM complex demonstrated notably enhanced activity, producing inhibition zones of approximately 18 ± 2 mm and 30 ± 3 mm, respectively. These results highlight the potential of metal-substituted POMs, particularly Cu-modified systems, as promising candidates for future antimicrobial applications.


Keywords : Polyoxometalates, Copper, Ruthenium, 4API, Antibacterial.
Document Type : Research Paper
Publication date : January 02, 2026