Investigating electrical conductivity and antimicrobial performance of niobium oxide and praseodymium oxide nanoparticles filled Chitosan-PVA polymer blends

Energy storage has shown interest in CS-PVA-based composites due to their antibacterial and biocompatible characteristics. For biological research, chitosan (CS)-polyvinyl alcohol (PVA) doped with Nb2O5-Pr6O11 composites are being investigated. The structural study is verified by FT-IR/XRD/EDX/XPS analysis. SEM measurement shows that the size of Nb2P5 rods ranges between 0.5 and 0.8 mu m. The effect of Oxy-dopants variation on the optical characterization of CS-PVA-based composites was examined. All samples exhibit high stability until 400 degrees C which is detected through thermal analysis. The largest indirect band gap is also found in pure CSPVA, and it decreases with oxy-dopants and hits 2.95 eV for CS-PVA-Nb2O5-10 % Pr6O11. Furthermore, the decrease in the band gap is consistent with the data from the XRD investigation and indicates enhanced crystalline ordering. The refractive index also decreases upon adding dopants to reach a value of 2.2 at CS-PVANb2O5-10 % Pr6O11. Plots of 8' and 8" show a diminishing trend as frequency increases, with constant values at higher frequencies. Introduced as the antibacterial activity that is most effective against S. aureus and E. coli is the CS-PVA-Nb2O5-30 %Pr6O11 with values of 14.3 +/- 0.2 and 16 +/- 0.3 mm respectively. All of the aforementioned arguments suggest the utilization of CS-PVA-based composites in electrical and biological applications.