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- W2282908723 abstract "Colloidal solutions of metal nanoparticles are currently among most studied substrates for sensors based on surface-enhanced Raman scattering (SERS). However, such substrates often suffer from not being cost-effective, reusable, or stable. Here, we develop nanoporous Au as a highly active, tunable, a.ordable, stable, bio-compatible, and reusable SERS substrate. Nanoporous Au is prepared by a facile process of free corrosion of AgAu alloys followed by annealing. Results show that nanofoams with average pore sizes of {approx} 250 nm exhibit the largest SERS signal for 632.8 nm excitation. This is attributed to the electromagnetic SERS enhancement mechanism with additional field localization within pores." @default.
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- W2282908723 date "2006-03-28" @default.
- W2282908723 modified "2023-09-27" @default.
- W2282908723 title "Nanoporous gold as a highly active substrate for surface-enhanced Raman scattering spectroscopy" @default.
- W2282908723 hasPublicationYear "2006" @default.
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