| Sumario: | A microfluidic device was developed to fabricate silver and gold nanoparticles. Nanoparticle formation was verified through fluorescence characterization of the resulting nanoparticle solutions and SEM imaging of the nanoparticles. Silver nanoparticle formation was the most extensively investigated, and many sets of conditions resulted in nanoparticle solutions of sufficient concentration that the emission peak was significantly red-shifted (to ~550 or ~600 nm) compared with the peak observed in diluted solutions (~455 or ~465 nm). Biologically relevant molecules (proteins and to a lesser extent lipids) were shown to act as ligands forming reproducible silver nanoparticles. When gold nanoparticles were formed, it was shown that the size of the nanoparticles could be increased by increasing the reaction time before capping ligands were added.
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