3D plasmonic crystal metamaterials for ultra-sensitive biosensing

We explore the excitation of plasmons in 3D plasmon crystal metamaterials and report the observation of a delocalized plasmon mode, which provides extremely high spectral sensitivity (>2600 nm per refractive index unit (RIU) change), outperforming all plasmonic counterparts excited in 2D nanoscal...

Descripción completa

Detalles Bibliográficos
Autores principales: Aristov, Andrey I., Manousidaki, Maria, Danilov, Artem, Terzaki, Konstantina, Fotakis, Costas, Farsari, Maria, Kabashin, Andrei V.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2016
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4858735/
https://www.ncbi.nlm.nih.gov/pubmed/27151104
http://dx.doi.org/10.1038/srep25380
Descripción
Sumario:We explore the excitation of plasmons in 3D plasmon crystal metamaterials and report the observation of a delocalized plasmon mode, which provides extremely high spectral sensitivity (>2600 nm per refractive index unit (RIU) change), outperforming all plasmonic counterparts excited in 2D nanoscale geometries, as well as a prominent phase-sensitive response (>3*10(4) deg. of phase per RIU). Combined with a large surface for bioimmobilization provided by the 3D matrix, the proposed sensor architecture promises a new important landmark in the advancement of plasmonic biosensing technology.

Ejemplares similares