Preparation of Surface-Enhanced Raman Scattering Substrates Based on Immobilized Silver-Capped Nanoparticles

<div>UV-vis spectrum of the synthesized nanoparticles. (a) AgNO<sub>3</sub> reduced with NH<sub>2</sub>OH·HCl and their aggregates (upon the addition of 100 <i>μ</i>L of KNO<sub>3</sub>), (b) AgNO<sub>3</sub> reduced with polyvinylpyrrolidone-10000, and (c) AgNO<sub>3</sub> reduced with polyvinylpyrrolidone-29000.</div>

Journal of Spectroscopy

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Figure 2

Figure 2: Preparation of Surface-Enhanced Raman Scattering Substrates Based on Immobilized Silver-Capped Nanoparticles 