期刊
NANOMATERIALS
卷 9, 期 11, 页码 -出版社
MDPI
DOI: 10.3390/nano9111630
关键词
Ag dendrites; fractal; SERS; hydrated protein; lysozyme
类别
资金
- [PON ADAS + ARS01_00459]
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 similar to 2.4 x 10(6). Experimental results assessed the dendrite material as a suitable SERS detection platform for biomolecules investigations in hydration conditions.
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