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dc.contributor.author
Scaramuzza, Stefano
dc.contributor.author
Badocco, Denis
dc.contributor.author
Pastore, Paolo
dc.contributor.author
Coral, Diego Fernando
dc.contributor.author
Fernández van Raap, Marcela Beatriz
dc.contributor.author
Amendola, Vincenzo
dc.date.available
2018-06-26T17:24:48Z
dc.date.issued
2017-05
dc.identifier.citation
Scaramuzza, Stefano; Badocco, Denis; Pastore, Paolo; Coral, Diego Fernando; Fernández van Raap, Marcela Beatriz; et al.; Magnetically Assembled SERS Substrates Composed of Iron-Silver Nanoparticles Obtained by Laser Ablation in Liquid; Wiley VCH Verlag; Chemphyschem; 18; 9; 5-2017; 1026-1034
dc.identifier.issn
1439-4235
dc.identifier.uri
http://hdl.handle.net/11336/50106
dc.description.abstract
The widespread application of surface-enhanced Raman scattering (SERS) would benefit from simple and scalable self-assembly procedures for the realization of plasmonic arrays with a high density of electromagnetic hot-spots. To this aim, the exploitation of iron-doped silver nanoparticles (NPs) synthesized by laser ablation of a bulk bimetallic iron–silver target immersed in ethanol is described. The use of laser ablation in liquid is key to achieving bimetallic NPs in one step with a clean surface available for functionalization with the desired thiolated molecules. These iron–silver NPs show SERS performances, a ready response to external magnetic fields and complete flexibility in surface coating. All these characteristics were used for the magnetic assembly of plasmonic arrays which served as SERS substrates for the identification of molecules of analytical interest. The magnetic assembly of NPs allowed a 28-fold increase in the SERS signal of analytes compared to not-assembled NPs. The versatility of substrate preparation and the SERS performances were investigated as a function of NPs surface coating among different thiolated ligands. These results show a simple procedure to obtain magnetically assembled regenerable plasmonic arrays for repeated SERS investigation of different samples, and it can be of inspiration for the realization of other self-assembled and reconfigurable magnetic–plasmonic devices.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Wiley VCH Verlag
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Magnetic Properties
dc.subject
Nanoparticles
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Raman Spectroscopy
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Self-Assembly
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Surface Chemistry
dc.subject.classification
Nano-materiales
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Nanotecnología
dc.subject.classification
INGENIERÍAS Y TECNOLOGÍAS
dc.title
Magnetically Assembled SERS Substrates Composed of Iron-Silver Nanoparticles Obtained by Laser Ablation in Liquid
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-06-25T01:04:27Z
dc.journal.volume
18
dc.journal.number
9
dc.journal.pagination
1026-1034
dc.journal.pais
Alemania
dc.journal.ciudad
Weinheim
dc.description.fil
Fil: Scaramuzza, Stefano. Università di Padova; Italia
dc.description.fil
Fil: Badocco, Denis. Università di Padova; Italia
dc.description.fil
Fil: Pastore, Paolo. Università di Padova; Italia
dc.description.fil
Fil: Coral, Diego Fernando. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; Argentina
dc.description.fil
Fil: Fernández van Raap, Marcela Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; Argentina
dc.description.fil
Fil: Amendola, Vincenzo. Università di Padova; Italia
dc.journal.title
Chemphyschem
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1002/cphc.201600651
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.1002/cphc.201600651


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