A molecular thermometer for nanoparticles for optical hyperthermia

Stefano Freddi, Laura Sironi, Rocco D'Antuono, Diego Morone, Alice Donà, Elisa Cabrini, Laura D'Alfonso, Maddalena Collini, Piersandro Pallavicini, Giovanni Baldi, Daniela Maggioni, Giuseppe Chirico

Research output: Contribution to journalArticle

70 Citations (Scopus)

Abstract

We developed an all-optical method to measure the temperature on gold (nanorods and nanostars) and magnetite nanoparticles under near-infrared and radiofrequency excitation by monitoring the excited state lifetime of Rhodamine B that lies within ≅20 nm from the nanoparticle surface. We reached high temperature sensitivity (0.029 ± 0.001 ns/ C) and low uncertainty (±0.3 C). Gold nanostars are ≅3 and ≅100 times more efficient than gold nanorods and magnetite nanoparticles in inducing localized hyperthermia.

Original languageEnglish
Pages (from-to)2004-2010
Number of pages7
JournalNano Letters
Volume13
Issue number5
DOIs
Publication statusPublished - May 8 2013

Fingerprint

Thermometers
hyperthermia
thermometers
Magnetite Nanoparticles
Gold
Nanoparticles
Magnetite nanoparticles
Nanotubes
rhodamine B
Fever
gold
Nanorods
magnetite
nanoparticles
nanorods
Temperature
rhodamine
Excited states
Uncertainty
excitation

Keywords

  • Fluorescence
  • gold nanoparticles
  • hyperthermia
  • near-infrared
  • thermology

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Mechanical Engineering
  • Medicine(all)

Cite this

Freddi, S., Sironi, L., D'Antuono, R., Morone, D., Donà, A., Cabrini, E., ... Chirico, G. (2013). A molecular thermometer for nanoparticles for optical hyperthermia. Nano Letters, 13(5), 2004-2010. https://doi.org/10.1021/nl400129v

A molecular thermometer for nanoparticles for optical hyperthermia. / Freddi, Stefano; Sironi, Laura; D'Antuono, Rocco; Morone, Diego; Donà, Alice; Cabrini, Elisa; D'Alfonso, Laura; Collini, Maddalena; Pallavicini, Piersandro; Baldi, Giovanni; Maggioni, Daniela; Chirico, Giuseppe.

In: Nano Letters, Vol. 13, No. 5, 08.05.2013, p. 2004-2010.

Research output: Contribution to journalArticle

Freddi, S, Sironi, L, D'Antuono, R, Morone, D, Donà, A, Cabrini, E, D'Alfonso, L, Collini, M, Pallavicini, P, Baldi, G, Maggioni, D & Chirico, G 2013, 'A molecular thermometer for nanoparticles for optical hyperthermia', Nano Letters, vol. 13, no. 5, pp. 2004-2010. https://doi.org/10.1021/nl400129v
Freddi S, Sironi L, D'Antuono R, Morone D, Donà A, Cabrini E et al. A molecular thermometer for nanoparticles for optical hyperthermia. Nano Letters. 2013 May 8;13(5):2004-2010. https://doi.org/10.1021/nl400129v
Freddi, Stefano ; Sironi, Laura ; D'Antuono, Rocco ; Morone, Diego ; Donà, Alice ; Cabrini, Elisa ; D'Alfonso, Laura ; Collini, Maddalena ; Pallavicini, Piersandro ; Baldi, Giovanni ; Maggioni, Daniela ; Chirico, Giuseppe. / A molecular thermometer for nanoparticles for optical hyperthermia. In: Nano Letters. 2013 ; Vol. 13, No. 5. pp. 2004-2010.
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