Dr. Majid Darroudi, Asso. Prof. Dr. Mansor Bin Ahmad

majiddarroudi@gmail.com

Metallic nanoparticle research is an attractive field in scientific studies due to the wide and varied ranges of potential and available applications, from biological
to industrial areas. Recently, researchers have published various preparation methods of metal nanoparticles, including chemical and physical methods. Among
the physical methods, the photo-irradiation synthesis method offers many advantages, such as space-selective fabrication. The pulsed laser ablation (PLA)
method has also attracted attention due to its enormous potential in laser-based materials processing, such as nanocrystals; growth, solid thin film, surface
cleaning, and microelectronic device fabrication. In addition, the PLA technique offers advantages in preparation methodology: (I) “simple and clean” synthesis,
(II) ambient conditions without extreme temperature and any special physical conditions such as pressure, and (III) formation of nanoparticles that may occur in
both liquid and solid forms. However, the size effect using the PLA method in preparing metal nanoparticles has not been thoroughly investigated, although
some approaches have considered the effect of PLA parameters and conditions on the size of metal nanoparticles [8, 9]. To date, no approach has been carried
out on the preparation of Ag-NPs using gelatin as a stabilizer in the PLA method. In this paper, we used the PLA method to focus on the preparation of Ag-NPs
from silver plate in water using gelatin as a stabilizer. The effect of the laser-pulsed repetition rate on size of Ag-NPs was studied.