Effect of plasmonic coupling on photothermal behavior of random nanoparticles

Siahpoush, Vahid; Ahmadi-Kandjani, Sohrab; Nikniazi, Arash

doi:10.1016/j.optcom.2018.03.021

Cited by 19 publications

(8 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The size of endosomes including the NPs could influence their performance in photothermal applications in vitro , with larger vesicles yielding stronger plasmon coupling effects, and therefore, higher temperature rise. 60 In Fig. 7 , we propose an example of internalization mechanism for Au-OPEG-CTX NCs.…”

Section: Resultsmentioning

confidence: 99%

Does conjugation strategy matter? Cetuximab-conjugated gold nanocages for targeting triple-negative breast cancer cells

et al. 2019

View full text Add to dashboard Cite

show abstract

Section: Resultsmentioning

confidence: 99%

Does conjugation strategy matter? Cetuximab-conjugated gold nanocages for targeting triple-negative breast cancer cells

et al. 2019

View full text Add to dashboard Cite

show abstract

“…The electric field intensity can be calculated using the DDA method. Siahpoush et al [ 22 ] used this method in the study of the effect of plasmonic coupling on the photo-thermal behavior of random nanoparticles.

stands the absorption cross-section of nanoparticles.…”

Section: Theories and Methodsmentioning

confidence: 99%

Optical Properties of Ag Nanoparticle Arrays: Near-Field Enhancement and Photo-Thermal Temperature Distribution

Luo

Hong

et al. 2022

Nanomaterials

View full text Add to dashboard Cite

The near-field and photo-thermal properties of nanostructures have always been the focus of attention due to their wide applications in nanomaterials. In this work, we numerically investigate the near-field and photo-thermal temperature distribution in a nanoparticle array when the scattering light field among particles is considered. ‘Hot spots’, which represent strong electric field enhancement, were analyzed at the difference of the particle size, particle spacing and the polarization direction of the incident light. Interestingly, it is found that the position of the ‘hot spots’ does not rotate with the polarization direction of the incident light and always remains in the particle gaps along the line between particle centers. Moreover, the near-field is independent of the polarization in some special areas, and the factor of near-field enhancement keeps constant in these spots when the illumination polarization varies. As for photo-induced heating, our results show that both the temperature of the structure center and maximum temperature increase linearly with the particle number of the array while decreasing with the increase in particle spacing. This work provides some theoretical considerations for the near-field manipulation and photo-thermal applications of nanoarrays.

show abstract

“…The light-induce thermal behavior of the nanoparticle ensemble is affected by two main factors, i.e., (a) the optical coupling effect [36] and (b) thermal accumulation effect [11,26]. We clarify the two factors in brief at first and then discuss the relation between them.…”

Section: A Relation Between the Optical Coupling And Thermal Accumula...mentioning

confidence: 98%

“…In this section, the optical plasmonic coupling effects on the photothermal behavior of the 2D finite-size squarelattice nanoparticle ensemble are analyzed. It's worthwhile to mention that the optical plasmonic coupling inhibits the temperature increase of the 3D randomly distributed nanoparticle ensemble [36].…”

Section: B Optical Coupling Effect On Photothermal Behaviormentioning

confidence: 99%

“…By means of the Green's function approach for the photon-induced thermal behavior proposed by [26], effect of plasmonic (optical) coupling and thermal accumulation on the photothermal behavior of ensemble with three-dimensional (3D) random distribution of nanoparticles was analyzed by Siahpoush et al [36]. They found that at the plasmonic resonance wavelength of single nanoparticle, optical coupling leads to reduce the temperature increase of nanoparticles in comparison with the temperature without considering optical coupling.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Photothermal behavior for two-dimensional nanoparticle ensembles: optical coupling and thermal accumulation effects

Luo,

Zhao,

Liu

et al. 2021

Preprint

View full text Add to dashboard Cite

Light-assisted micro-nanoscale temperature control in complex nanoparticle network attracts lots of research interests. Many efforts have been put on the optical properties of the nanoparticle networks and only a few investigation on its light-induced thermal behavior was reported. We consider two-dimensional (2D) square-lattice nanoparticle ensemble made of typical metal Ag with radius of 5 nm. The effect of complex optical coupling and thermal accumulation on the light-induced thermal behavior at plasmonic resonance frequency (around 383 nm) is analyzed by means of the Green's function approach. Similar to the threedimensional random nanoparticle ensemble reported in literature [V. Siahpoush, S. Ahmadi-kandjani, and A. Nikniazi, Opt. Commun. 420, 52 (2018).], optical coupling in 2D square-lattice nanoparticle ensemble can also inhibit temperature increase ∆T of nanoparticles. A dimensionless parameter ϕ is defined as the ratio of full temperature increase to that without considering optical coupling or thermal accumulation to quantify the optical coupling and thermal accumulation effects on photothermal behavior. The more compact the nanoparticle ensemble is, the stronger the optical coupling on thermal behavior is. When the lattice spacing increases to 10 times of nanoparticle radius, the optical coupling becomes no significant. When ϕ ≈ 1 (lattice spacing increases to 30 times of nanoparticle radius), the thermal accumulation effects are weak and can be neglected safely. The polarization-dependent distribution of temperature increase of nanoparticle is observed only in the compact nanoparticle ensemble, while for dilute ensemble, such polarization-dependent temperature increase distribution can not be observed anymore. This work may help for the understanding of the photon-induced thermal transport in the 2D particle ensemble.

show abstract

Effect of plasmonic coupling on photothermal behavior of random nanoparticles

Cited by 19 publications

References 31 publications

Does conjugation strategy matter? Cetuximab-conjugated gold nanocages for targeting triple-negative breast cancer cells

Does conjugation strategy matter? Cetuximab-conjugated gold nanocages for targeting triple-negative breast cancer cells

Optical Properties of Ag Nanoparticle Arrays: Near-Field Enhancement and Photo-Thermal Temperature Distribution

Photothermal behavior for two-dimensional nanoparticle ensembles: optical coupling and thermal accumulation effects

Contact Info

Product

Resources

About