In this work, we present the synthesis of silver nanoparticles by ultrasonic irradiation of a solution containing silver nitrate as precursor and sodium citrate as reducing agent. These nanoparticles were characterized by ultraviolet-visible spectroscopy and transmission electron microscopy (TEM) and then were tested as SERS-active colloids.
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Solano-Ruiz et al. (2010) studied this question.
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