Preparation and characterization of gelatin mediated silver nanoparticles by laser ablation.

• Main Authors: Darroudi, Majid, Ahmad @ Ayob, Mansor, Zamiri, Reza, Abdullah, Abdul Halim, Ibrahim, Nor Azowa, Shameli, Kamyar, Husin, M. Shahril
• Format: Article
• Language: English; English
• Published: Elsevier 2011
• Online Access: http://psasir.upm.edu.my/id/eprint/24833/1/Preparation%20and%20characterization%20of%20gelatin%20mediated%20silver%20nanoparticles%20by%20laser%20ablation.pdf; http://psasir.upm.edu.my/id/eprint/24833/; http://www.elsevier.com/
• Institution: Universiti Putra Malaysia

We successfully prepared colloidal silver nanoparticles (Ag-NPs) using a nanosecond pulsed Nd:YAG laser, λ = 532 nm, with laser fluence of approximately about 0.6 J/pulse, in an aqueous gelatin solution. The size and optical absorption properties of samples were studied as a function of the laser repetition rates. The results from the UV-vis spectroscopy demonstrated that the mean diameter of Ag-NPs increase with the laser repetition rate increases. The Ag-NPs have mean diameters ranging from approximately 9 nm to 15 nm. Compared with other preparation methods, this work is clean, rapid, and simple to use.