University of Kashan Journal of Nanostructures 2251-7871 15 3 2025 07 01 Structural and Optical Properties of Palladium , Silver, Core–Shell Nanoparticles Prepared using Pla Technique for Antibacterial Activation 847 862 114865 10.22052/JNS.2025.03.004 EN Sajjad A. Hussain Department of Physics, college of Education, University of Al-Qadisiyah, Iraq Mushtaq Talib Al-Helaly Department of Physics, college of Education, University of Al-Qadisiyah, Iraq Journal Article 2025 03 15 In this research, (Pd-Ag core-shell nanoparticles) was prepared using (PLA) technique with (Nd-YAG) laser at a wavelength of 532nm, a power of (1J) and a number of different laser pulses. The structural properties (Pd-Ag core-shell Nps) were studied. The average physical size of the nanoparticles was obtained through (XRD and SEM) examination, and it increased with the increase in the number of laser pulses. The EDX examination showed that the prepared samples were of high purity. The results of optical properties tests showed an increase in absorbance and absorption coefficient and a decrease in transmittance with increasing number of laser pulses. https://jns.kashanu.ac.ir/article_114865_3beb41bbe5400282cba1d40dce74b42e.pdf