Near-infrared light heating of a slab by embedded nanoparticles

Tjahjono, Indra Kurniawan; Bayazıtoğlu, Yıldız

doi:10.1016/j.ijheatmasstransfer.2007.07.047

Cited by 37 publications

(35 citation statements)

References 21 publications

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“…This more general case has been of particular interest for applications in biomedical imaging and for unconventional therapeutics, such as photothermal ablation of tumors. (20)(21)(22)(23)(24) To numerically solve this for the case of absorberscatterers, we simulate the fate of each incident photon passing through a random ensemble of particles. (25,26) In the limit of pure absorbers or pure scatterers this approach agrees with both the Beer-Lambert law and the diffusion approximation, respectively ( Figure S1, Supporting Information).…”

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confidence: 99%

Nanoparticles Heat through Light Localization

et al. 2014

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Aqueous solutions containing light-absorbing nanoparticles have recently been shown to produce steam at high efficiencies upon solar illumination, even when the temperature of the bulk fluid volume remains far below its boiling point. Here we show that this phenomenon is due to a collective effect mediated by multiple light scattering from the dispersed nanoparticles. Randomly positioned nanoparticles that both scatter and absorb light are able to concentrate light energy into mesoscale volumes near the illuminated surface of the liquid. The resulting light absorption creates intense localized heating and efficient vaporization of the surrounding liquid. Light trapping-induced localized heating provides the mechanism for low-temperature light-induced steam generation and is consistent with classical heat transfer.

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confidence: 99%

Nanoparticles Heat through Light Localization

et al. 2014

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“…The mathematical models were received by solving the DHFE for different BC matching each MFP, using the FTs. Major work have been done in the past to solve the DHFE equation for a cosine-MF source as can be found in [36,37,49,59]. Keblinski et al [38] found that a laser source having a constant power of 1.4·10 −8 W heating a single MNP with a radius of 65 nm can cause a temperature change of 0.06 K at the particle surface.…”

Section: Discussionmentioning

confidence: 99%

“…The control volume where the conductive analysis is preformed. q s is the constant heat flux released from the MNP after absorbing the magnetic energy and δ is the thickness of the penetration region [37].…”

Section: Methodsmentioning

confidence: 99%

“…Using this technique, Liu and Xu [36] analyzed the influences that a sinusoidal heat flux source placed on the skin surface have on the temperature inside it, and Tjahjono [37] analytically analyzed the heating temperature of a slab embedded with gold NPs due to a constant magnetic flux.…”

Section: Introductionmentioning

confidence: 99%

“…(1) Case 1-a cosine profile [18,37], (2) Case 2-a PMP [45,46], (3) Case 3-a discontinuous cosine profile.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

An Analytic Analysis of the Diffusive-Heat-Flow Equation for Different Magnetic Field Profiles for a Single Magnetic Nanoparticle

Dana

Gannot

2012

Journal of Atomic, Molecular, and Optical Physics

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This study analytically analyzes the changes in the temperature profile of a homogenous and isotropic medium having the same thermal parameters as a muscular tissue, due to the heat released by a single magnetic nanoparticle (MNP) to its surroundings when subject to different magnetic field profiles. Exploring the temperature behavior of a heated MNP can be very useful predicting the temperature increment of it immediate surroundings. Therefore, selecting the most effective magnetic field profile (MFP) in order to reach the necessary temperature for cancer therapy is crucial in hyperthermia treatments. In order to find the temperature profile caused by the heated MNP immobilized inside a homogenous medium, the 3D diffusive-heat-flow equation (DHFE) was solved for three different types of boundary conditions (BCs). The change in the BC is caused by the different MF profiles (MFP), which are analyzed in this article. The analytic expressions are suitable for describing the transient temperature response of the medium for each case. The analysis showed that the maximum temperature increment surrounding the MNP can be achieved by radiating periodic magnetic pulses (PMPs) on it, making this MFP more effective than the conventional cosine profile.

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Infrared light‐active shape memory polymer filled with nanocarbon particles

Leng

Liu

2009

J of Applied Polymer Sci

133

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In addition to the fabrication of thermoset styrene-based shape memory polymer (SMP) and its nanocomposite filled with nanocarbon particles, this study presents the effect of nanocarbon particles on infrared light-active shape recovery behaviors of this type of SMP material. The experimental results reveal that both pure SMP and SMP filled with nanocarbon particles can be actuated by infrared light in vacuum, while shape memory effect shown by the composite is stronger than that of in pure SMP. Shape memory effect is evaluated by shape recovery ability and shape recovery speed in detail. Moreover, factors which would influence the infrared light-active shape memory effect in SMP with/without nanocarbon particles are explored by scanning electron microscopy (SEM), differential scanning calorimetry (DSC), dynamic mechanical analysis (DMA), and infrared absorption characteristic tests. The better shape memory effect of the nanocomposite attributes to its higher storage modulus and higher infrared absorption capability.

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Near-infrared light heating of a slab by embedded nanoparticles

Cited by 37 publications

References 21 publications

Nanoparticles Heat through Light Localization

Nanoparticles Heat through Light Localization

An Analytic Analysis of the Diffusive-Heat-Flow Equation for Different Magnetic Field Profiles for a Single Magnetic Nanoparticle

Infrared light‐active shape memory polymer filled with nanocarbon particles

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