http://www.cnr.it/ontology/cnr/individuo/prodotto/ID199748
Nanoscale Biomolecular Detection Limit for Gold Nanoparticles Based on Near-Infrared Response (Articolo in rivista)
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- Label
- Nanoscale Biomolecular Detection Limit for Gold Nanoparticles Based on Near-Infrared Response (Articolo in rivista) (literal)
- Anno
- 2012-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1155/2012/278194 (literal)
- Alternative label
Mario D'Acunto, Davide Moroni, Ovidio Salvetti (2012)
Nanoscale Biomolecular Detection Limit for Gold Nanoparticles Based on Near-Infrared Response
in Advances in Optical Technologies (Online); Hindawi Publishing Corporation, Cairo (Egitto)
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- Mario D'Acunto, Davide Moroni, Ovidio Salvetti (literal)
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- http://www.hindawi.com/journals/aot/2012/278194/ (literal)
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- Istituto di Struttura della Materia, Consiglio Nazionale delle Ricerche, Via Fosso del Cavaliere 100, 00133 Roma, Italy
Istituto di Scienze e Tecnologia dell'Informazione, Consiglio Nazionale delle Ricerche, Via Moruzzi 1, 56124 Pisa, Italy (literal)
- Titolo
- Nanoscale Biomolecular Detection Limit for Gold Nanoparticles Based on Near-Infrared Response (literal)
- Abstract
- Gold nanoparticles have been widely used during the past few years in various technical and biomedical applications. In particular, the resonance optical properties of nanometer-sized particles have been employed to design biochips and biosensors used as analytical tools. The optical properties of nonfunctionalized gold nanoparticles and core-gold nanoshells play a crucial role for the design of biosensors where gold surface is used as a sensing component. Gold nanoparticles exhibit excellent optical tunability at visible and near-infrared frequencies leading to sharp peaks in their spectral extinction. In this paper, we study how the optical properties of gold nanoparticles and core-gold nanoshells are changed as a function of different sizes, shapes, composition, and biomolecular coating with characteristic shifts towards the near-infrared region. We show that the optical tenability can be carefully tailored for particle sizes falling in the range 100-150 nm. The results should improve the design of sensors working at the detection limit. (literal)
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