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We propose a new approach to understand the time-dependent temperature increasing process of gold-silica core-shell nanoparticles injected into chicken tissues under near-infrared laser irradiation. Gold nanoshells strongly absorb…

介观与纳米尺度物理 · 物理学 2018-04-04 Vu T. T. Duong , Anh D. Phan , Nghiem T. H. Lien , Do T. Hue , Do Q. Hoa , Do T. Nga , Tran H. Nhung , Nguyen A. Viet

We theoretically investigate equilibrium behaviors and photothermal effects of a flexible plasmonic metamaterial composed of aramid nanofibers and gold nanoparticles. The fiber matrix is considered as an external field to reconfigure a…

介观与纳米尺度物理 · 物理学 2020-11-12 Anh D. Phan , Vu D. Lam , Katsunori Wakabayashi

Photothermal therapies are based on the optical excitation of plasmonic nanoparticles in the biological environment. The effects of the irradiation on the biological medium depend critically on the heat transfer process at the nanoparticle…

计算物理 · 物理学 2017-11-21 Andrea Torchi , Federica Simonelli , Riccardo Ferrando , Giulia Rossi

Photoinduced hyperthermia is a cancer therapy technique that induces death to cancerous cells via heat generated by plasmonic nanoparticles. While previous studies have shown that some nanoparticles can be effective at killing cancer cells…

Light absorption and scattering of plasmonic metal nanoparticles can lead to non-equilibrium charge carriers, intense electromagnetic near-fields, and heat generation, with promising applications in a vast range of fields, from chemical and…

光学 · 物理学 2020-08-27 Guillaume Baffou , Ivan Bordacchini , Andrea Baldi , Romain Quidant

Longer near-infrared wavelengths provide better penetration depth in biological tissues, so these are useful for plasmonic photothermal cancer therapeutics. In the context of nanoparticles for such applications, the absorption can be tuned…

光学 · 物理学 2023-03-21 Dheeraj Pratap , Rizul Gautam , Amit Kumar Shaw , Vikas , Sanjeev Soni

Bio-conjugated nanomaterials play a promising role in the development of novel supramolecular structures, molecular machines, and biosensing devices. In this study, lipid-conjugated gold nanoparticles were synthesized and allowed to form a…

材料科学 · 物理学 2012-07-24 Subhasish Chatterjee , Markrete Krikorian , Harry D. Gafney , Bonnie Gersten

In numerous applications of energy harvesting via transformation of light into heat the focus recently shifted towards highly absorptive materials featuring nanoplasmons. It is currently established that noble metals-based absorptive…

光学 · 物理学 2013-01-22 Gustav Edman Jonsson , Vladimir Miljkovic , Alexandre Dmitriev

The use of gold nanoparticles for hyperthermia therapy in near infrared (NIR) spectral regions has catalysed substantial research efforts due to the potential impact in clinical therapy applications. However, the photoscattering effect…

Core-shell nanoparticles, particularly those having a gold core, have emerged as a highly promising class of materials due to their unique optical and thermal properties, which underpin a wide range of applications in photothermal therapy,…

计算物理 · 物理学 2025-06-06 Julien El Hajj , Gilles Ledoux , Samy Merabia

Assemblies of closely separated gold nanoparticles exhibit a strong collective plasmonic response due to coupling of the plasmon modes of the individual nanostructures. In the context of self-assembly of nanoparticles, closed packed 2D…

材料科学 · 物理学 2021-08-05 Rituraj Borah , Sammy W. Verbruggen

While the thermal and electromagnetic properties of plasmonic nanostructures are well understood, nanoscale thermometry still presents an experimental and theoretical challenge. Plasmonic structures can confine electromagnetic energy at the…

Plasmonic structures are renowned for their capability to efficiently convert light into heat at the nanoscale. However, despite the possibility to generate deep sub-wavelength electromagnetic hot spots, the formation of extremely localized…

Nanoscale photothermal sources find important applications in theranostics, imaging, and catalysis. In this context, graphene offers a unique suite of optical, electrical, and thermal properties, which we exploit to show self-consistent…

材料科学 · 物理学 2018-08-08 Renwen Yu , Qiushi Guo , Fengnian Xia , F. Javier García de Abajo

We assess the potentiality of several geometries of metallic nanodimers (one of the simplest thermoplasmonic systems) as candidates for active particles (nanoswimmers) propelled and controlled by light (phototaxis). The studied nanodimers…

介观与纳米尺度物理 · 物理学 2020-02-19 Andrés I. Bertoni , Nicolás Passarelli , Raúl Bustos-Marún

Photothermal conversion efficiency ({\eta}) plays a crucial role in selecting suitable gold nanoparticles for photothermal therapeutic applications. The photothermal efficiency depends on the material used for the nanoparticles as well as…

应用物理 · 物理学 2023-05-15 Viktoriia Savchuk , Ruizheng Wang , Lyle Small , Anatoliy Pinchuk

Photothermal effects of gold core-shell nanoparticles and nanorods dispersed in water are theoretically investigated using the transient bioheat equation and the extended Mie theory. Properly calculating the absorption cross section is an…

材料科学 · 物理学 2017-11-22 Anh D. Phan , Do T. Nga , Nguyen A. Viet

Gold nanoparticles have been synthesized inside ethosomes, vesicles composed of phospholipid, ethanol and water, which could be very efficient not only in delivery probes to the skin but also as diagnostic and therapeutic multimodal agents.…

The combination of nanodiamonds with plasmonic metal particles is being explored for synergic effects that can enhance biosensing and antibacterial treatments, energy harvesting, photocatalysis, and quantum centres. Here we systematically…

Plasmonic absorption of light can lead to significant local heating in metallic nanostructures, an effect that defines the sub-field of thermoplasmonics and has been leveraged in diverse applications from biomedical technology to…

介观与纳米尺度物理 · 物理学 2014-02-21 Joseph B. Herzog , Mark W. Knight , Douglas Natelson
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