Effect of Plasma Liquid on Colloidal (CoNPs) and (PtNPs) Nanostructures Produced by Laser Ablation Technique for Antibacterial Applications

In this work, the biological and physical properties of colloidal platinum nanoparticles (PtNPs) and cobalt nanoparticles (CoNPs) were examined for antibacterial applications. The colloidal PtNPs and CoNPs were produced using two different liquids (double-distilled water (DDW) and Dulbecco's Modified Eagle's Medium (DMEM)) by laser ablation technique (PLAL). Characterization techniques such as transmission electron microscopy (TEM), UV-Vis spectroscopy and Fourier transform infrared (FTIR) were used to determine some physical properties of PtNPs and CoNPs. The antibacterial effects of colloidal PtNPs and CoNPs at different doses on various bacteria were investigated and their antibacterial activity resistances were calculated by measuring the inhibition zone widths. The effect of the liquid used in the production, the type of bacteria and dose amounts on the antibacterial resistance of these nanoparticles (NPs) were determined. In this study, it has been shown that the liquid used in the production of PtNPs and CoNPs can create significant changes in the physical and antibacterial properties of NP, especially by changing the size and concentration of colloidal PtNPs.