Plasmonic nanostructures capable of converting light to heat have found wide applications, thus giving rise to the field of thermoplasmonics. Among them, the use of gold-based plasmonic structures in near-infrared (NIR) spectral regions has catalyzed substantial research efforts due to the potential impact in clinical therapy applications. However, the photon scattering effect scaling with the square of the nanoparticle volume leads to high scattering and then low absorption efficiency. This limit has hindered the exploitation of gold nanoparticles, especially in NIR II regions above 1000 nm. Here, we make a step forward for overcoming this limitation by introducing hyperbolic metamaterial nanoparticles that are made of multi-layered gold/dielectric nanodisks and exhibit >70% absorption efficiency in the NIR II and III regions. Their high light-to-heat conversion is demonstrated by a much larger temperature increase than that of gold nanodisks with the same amount of gold. Efficient in vitro hyperthermia of living cells with negligible cytotoxicity shows the potential of our platform for versatile bio-medical applications.
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30 January 2023
Research Article|
January 31 2023
Hyperbolic metamaterial nanoparticles random array for thermoplasmonics in the II and III near-infrared windows
Yingqi Zhao
;
Yingqi Zhao
(Conceptualization, Investigation, Methodology, Writing – original draft)
1
Istituto Italiano di Tecnologia
, Via Morego 30, 16163 Genova, Italy
2
Research Unit of Medical Imaging, Physics and Technology (MIPT), Faculty of Medicine, University of Oulu
, Aapistie 5A, 90220 Oulu, Finland
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Marzia Iarossi
;
Marzia Iarossi
(Investigation, Writing – review & editing)
1
Istituto Italiano di Tecnologia
, Via Morego 30, 16163 Genova, Italy
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Nicolò Maccaferri
;
Nicolò Maccaferri
(Conceptualization, Investigation, Writing – review & editing)
3
Department of Physics and Umeå Centre for Microbial Research, Umeå University,
901 87 Umeå, Sweden
4
Department of Physics and Materials Science, University of Luxembourg
, 162a Avenue de la Faïencerie, L-1511 Luxembourg, Luxembourg
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Lieselot Deleye
;
Lieselot Deleye
(Investigation)
1
Istituto Italiano di Tecnologia
, Via Morego 30, 16163 Genova, Italy
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Giovanni Melle
;
Giovanni Melle
(Investigation)
1
Istituto Italiano di Tecnologia
, Via Morego 30, 16163 Genova, Italy
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Jian-An Huang
;
Jian-An Huang
(Investigation, Writing – review & editing)
1
Istituto Italiano di Tecnologia
, Via Morego 30, 16163 Genova, Italy
2
Research Unit of Medical Imaging, Physics and Technology (MIPT), Faculty of Medicine, University of Oulu
, Aapistie 5A, 90220 Oulu, Finland
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Giuseppina Iachetta;
Giuseppina Iachetta
(Investigation)
1
Istituto Italiano di Tecnologia
, Via Morego 30, 16163 Genova, Italy
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Marta D'Amora
;
Marta D'Amora
(Investigation)
1
Istituto Italiano di Tecnologia
, Via Morego 30, 16163 Genova, Italy
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Francesco Tantussi
;
Francesco Tantussi
(Methodology)
1
Istituto Italiano di Tecnologia
, Via Morego 30, 16163 Genova, Italy
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Tommi Isoniemi;
Tommi Isoniemi
(Investigation)
1
Istituto Italiano di Tecnologia
, Via Morego 30, 16163 Genova, Italy
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Francesco De Angelis
Francesco De Angelis
a)
(Conceptualization, Resources, Supervision, Writing – review & editing)
1
Istituto Italiano di Tecnologia
, Via Morego 30, 16163 Genova, Italy
a)Author to whom correspondence should be addressed: francesco.deangelis@iit.it
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a)Author to whom correspondence should be addressed: francesco.deangelis@iit.it
Appl. Phys. Lett. 122, 052201 (2023)
Article history
Received:
October 27 2022
Accepted:
January 14 2023
Citation
Yingqi Zhao, Marzia Iarossi, Nicolò Maccaferri, Lieselot Deleye, Giovanni Melle, Jian-An Huang, Giuseppina Iachetta, Marta D'Amora, Francesco Tantussi, Tommi Isoniemi, Francesco De Angelis; Hyperbolic metamaterial nanoparticles random array for thermoplasmonics in the II and III near-infrared windows. Appl. Phys. Lett. 30 January 2023; 122 (5): 052201. https://doi.org/10.1063/5.0132172
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