JOURNAL of the Tunisian Chemical Society

PVP-capped silver nanoparticles (Ag@PVP) were synthesized through a chemical reduction method using sodium borohydride (NaBH4) as reducing agent in an aqueous medium. The as-prepared nanoparticles were characterized using a Transmission Electron Microscope (TEM), UV-Visible, photoluminescence and Raman spectroscopies. Optical absorption measurements of Ag@PVP nanoparticles showed a strong localized surface plasmon resonance (LSPR). SERS experiments highlighted the regioselective adsorption of PVP on the Ag surface via the Ag-O interactions and the stability of Ag@PVP nanoparticles. The biocompatibility of these nanoparticles was studied using cytotoxicity experiments against HUVEC cells.

C. El Baher Dhafer, A. Mezni, L.S. Smiri

Silver nanoparticles, Raman-SERS, Ag-O interactions, Biocompatibility, Cytotoxicity

Pages 152-157