Synthesis of silver nanoparticles with controllable surface charge and their application to surface-enhanced Raman scattering.
The objective of the present work was to explore new methods of synthesis of silver nanocolloids using amino acids as reducing agents. The goal of the study was to fabricate nanostructures with controllable surface charge (zeta potential) that may allow optimizing the adsorption of target molecules for ultrasensitive analysis using surface-enhanced Raman scattering (SERS). The average SERS properties of these colloids are tested with two organic analytes and compared with those obtained by using the most commonly used citrate Ag sols.
Alvarez-Puebla
Ramon A
RA
Materials and Surface Science Group, Faculty of Sciences, University of Windsor, Windsor, ON, Canada, N9B 3P4.
Aroca
Ricardo F
RF
D000596:Amino Acids / Q000737:chemistry; D019343:Citric Acid / Q000737:chemistry; D006863:Hydrogen-Ion Concentration; D053768:Metal Nanoparticles / Q000737:chemistry*; D019163:Reducing Agents / Q000737:chemistry; D012834:Silver / Q000737:chemistry*; D013059:Spectrum Analysis, Raman / Q000379:methods*
D000596:Amino Acids; D019163:Reducing Agents; D019343:Citric Acid; D012834:Silver