Optical Detection of core-gold nanoshells inside
biosystems

• Authors: Mario D’Acunto , Simone Dinarelli , Antonio Cricenti , Marco Luce
• Languages of publication: EN

Abstracts

EN

Metal nanoshells having a dielectric core with a
thin gold layer are generating new interest due to the unique
optical, electric and magnetic properties exhibited by the
local field enhancement near the metal – dielectric core
interface. These nanoshells possess strong, highly tunable
local plasmon resonances with frequencies dependent
upon the nanoshell shape and core material. These
unique characteristics have applications in biosensing,
optical communication and medicine. In this paper, we
developed a theoretical, numerical and experimental
approach based on a scanning near optical microscope to
identify nanoshells inside mouse cells. Taking advantage
of the characteristic near-infrared transparency window
of many biological systems, i.e. the low light absorption
coefficient of biological systems between 750−1100 nm,
we were able to identify a 100−150 nm diameter barium
titanate-gold nanoshell inside the h9c2 mouse cells.

Keywords

EN

Near-Field; SNOM; core-gold nanoshells; nearinfrared; tissue transparency window; h9c2 mouse cell

• Publisher: De Gruyter Open
• Journal: Nanospectroscopy
• Year: 2014
• Volume: 1
• Issue: 1

Dates

received

15 - 8 - 2015

accepted

23 - 10 - 2015

online

3 - 2 - 2016

Contributors

author

Mario D’Acunto

• Istituto di Scienza e
  Tecnologie dell’Informazione, Consoglio Nazionale delle Ricerche,
  ISTI-CNR, Via G.Moruzzi 1, I-56124, Pisa, Italy, NanoICT Laboratory,
  Area della Ricerca CNR, via G. Moruzzi 1, I-56124, Pisa, Italy
• Istituto
  di Struttura della Materia, Consiglio Nazionale delle Ricerche,
  ISM-CNR, Via Fosso del Cavaliere, 100, I-00133, Rome, Italy

author

Simone Dinarelli

• Istituto
  di Struttura della Materia, Consiglio Nazionale delle Ricerche,
  ISM-CNR, Via Fosso del Cavaliere, 100, I-00133, Rome, Italy

author

Antonio Cricenti

• Istituto
  di Struttura della Materia, Consiglio Nazionale delle Ricerche,
  ISM-CNR, Via Fosso del Cavaliere, 100, I-00133, Rome, Italy

author

Marco Luce

• Istituto
  di Struttura della Materia, Consiglio Nazionale delle Ricerche,
  ISM-CNR, Via Fosso del Cavaliere, 100, I-00133, Rome, Italy

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Identifiers

DOI

10.1515/nansp-2015-0007