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Extended domains of organized nanorings of silver grains as surface-enhanced Raman scattering sensors for molecular detection.
Nanotechnology. 2009 Nov 11; 20(45):455302.N

Abstract

The possibility to synthesize large areas of silver grains organized in nanorings using a simple technique based on nanosphere lithography and electroless plating as a metal deposition method is described for the first time. In addition, we present a systematic SERS study of the obtained long-range ordered silver nanodots and nanorings. The possibility to precisely control the size, the interdistance and the morphology of these nanostructures allows us to systematically investigate the influence of these parameters on SERS. We show that the best possible SERS substrates should not only present optimal sizes, interdistances and shapes, but also a grain-like structure composed of sub-100 nm grains in order to maximize the number of hot-spots. In addition, we show that grains arranged in nanorings present higher enhancement factors (E(F) = 5.5 x 10(5)) as compared to similar arrays made of nanodots. A wide range of applications, including real-time monitoring of catalytic surface reactions, environmental and security monitoring as well as clinical and pharmaceutical screening, can be envisaged for these SERS substrates.

Authors+Show Affiliations

Laboratory for Mechanics of Materials and Nanostructures, EMPA, Swiss Federal Laboratories for Materials Testing and Research, Feuerwerkerstrasse 39, CH-3602 Thun, Switzerland. mikhael.bechelany@empa.chNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

19834249

Citation

Bechelany, M, et al. "Extended Domains of Organized Nanorings of Silver Grains as Surface-enhanced Raman Scattering Sensors for Molecular Detection." Nanotechnology, vol. 20, no. 45, 2009, p. 455302.
Bechelany M, Brodard P, Philippe L, et al. Extended domains of organized nanorings of silver grains as surface-enhanced Raman scattering sensors for molecular detection. Nanotechnology. 2009;20(45):455302.
Bechelany, M., Brodard, P., Philippe, L., & Michler, J. (2009). Extended domains of organized nanorings of silver grains as surface-enhanced Raman scattering sensors for molecular detection. Nanotechnology, 20(45), 455302. https://doi.org/10.1088/0957-4484/20/45/455302
Bechelany M, et al. Extended Domains of Organized Nanorings of Silver Grains as Surface-enhanced Raman Scattering Sensors for Molecular Detection. Nanotechnology. 2009 Nov 11;20(45):455302. PubMed PMID: 19834249.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Extended domains of organized nanorings of silver grains as surface-enhanced Raman scattering sensors for molecular detection. AU - Bechelany,M, AU - Brodard,P, AU - Philippe,L, AU - Michler,J, Y1 - 2009/10/16/ PY - 2009/10/17/entrez PY - 2009/10/17/pubmed PY - 2010/1/15/medline SP - 455302 EP - 455302 JF - Nanotechnology JO - Nanotechnology VL - 20 IS - 45 N2 - The possibility to synthesize large areas of silver grains organized in nanorings using a simple technique based on nanosphere lithography and electroless plating as a metal deposition method is described for the first time. In addition, we present a systematic SERS study of the obtained long-range ordered silver nanodots and nanorings. The possibility to precisely control the size, the interdistance and the morphology of these nanostructures allows us to systematically investigate the influence of these parameters on SERS. We show that the best possible SERS substrates should not only present optimal sizes, interdistances and shapes, but also a grain-like structure composed of sub-100 nm grains in order to maximize the number of hot-spots. In addition, we show that grains arranged in nanorings present higher enhancement factors (E(F) = 5.5 x 10(5)) as compared to similar arrays made of nanodots. A wide range of applications, including real-time monitoring of catalytic surface reactions, environmental and security monitoring as well as clinical and pharmaceutical screening, can be envisaged for these SERS substrates. SN - 1361-6528 UR - https://www.unboundmedicine.com/medline/citation/19834249/Extended_domains_of_organized_nanorings_of_silver_grains_as_surface_enhanced_Raman_scattering_sensors_for_molecular_detection_ L2 - https://doi.org/10.1088/0957-4484/20/45/455302 DB - PRIME DP - Unbound Medicine ER -