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Long-Life and pH-Stable SnO2-Coated Au Nanoparticles for SHINERS
Julia Fernández-Vidal1, Ana M Gómez-Marín2, Leanne A H Jones3
1Stephenson Institute for Renewable Energy, Department of Chemistry, Peach Street, University of Liverpool, Liverpool L69 7ZF, United Kingdom.
Abstract:
Shell-isolated nanoparticles (SHINs) with a 37 nm gold core and an 11 nm tin dioxide (SnO2) coating exhibited long-life Raman enhancement for 3 months and a wide pH stability of pH 2-13 in comparison with conventional SiO2-coated SHINs. Herein, Au-SnO2 is demonstrated as a more durable SHIN for use in the technique Shell-Isolated Nanoparticles for Enhanced Raman Spectroscopy (SHINERS).
