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In this paper, we report on the realization of a highly sensitive and low cost 3D surface-enhanced Raman scattering (SERS) platform. The structural features of the Ag dendrite network that characterize the SERS material were exploited, attesting a remarked self-similarity and scale invariance over a broad range of length scales that are typical of fractal systems. Additional structural and optical investigations confirmed the purity of the metal network, which was characterized by low oxygen contamination and by broad optical resonances introduced by the fractal behavior. The SERS performances of the 3D fractal Ag dendrites were tested for the detection of lysozyme as probe molecule, attesting an enhancement factor of~ 2.4× 10 6. Experimental results assessed the dendrite material as a suitable SERS detection platform for biomolecules investigations in hydration conditions. View Full-Text
Multidisciplinary Digital Publishing Institute
Publication date: 
1 Nov 2019

Maria José Lo Faro, Cristiano D’Andrea, Antonio Alessio Leonardi, Dario Morganti, Alessia Irrera, Barbara Fazio

Biblio References: 
Volume: 9 Issue: 11 Pages: 1630