Can magneto-plasmonic nanohybrids efficiently combine photothermia with magnetic hyperthermia?

Espinosa, Ana; Bugnet, Matthieu; Radtke, Guillaume; Neveu, Sophie; Botton, Gianluigi A.; Wilhelm, Claire; Abou‐Hassan, Ali

doi:10.1039/c5nr06168g

Cited by 102 publications

(85 citation statements)

References 50 publications

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“…This created a NP system where the Au‐filled large gelatin nanoparticle system that can break down from 200 to 20 nm when triggered by the presence of enzymes . The inorganic nanohybrids, such as iron dioxide/gold nanohybrids, have attracted considerable attention for biomedical applications . The magnetic iron oxide allows imaging by magnetic resonance (MRI) and magnetic hyperthermia[104a]; while the plasmonic gold allows photothermia and photoacoustic imaging .…”

Section: Using Mcts To Evaluate Nano Drug Carriersmentioning

confidence: 99%

“…The inorganic nanohybrids, such as iron dioxide/gold nanohybrids, have attracted considerable attention for biomedical applications . The magnetic iron oxide allows imaging by magnetic resonance (MRI) and magnetic hyperthermia[104a]; while the plasmonic gold allows photothermia and photoacoustic imaging . In addition, the hybridization with a gold shell can improve the long term stability of iron oxide entity by preventing massive intracellular biodegradation of iron oxide in 3D cellular spheroids.…”

Section: Using Mcts To Evaluate Nano Drug Carriersmentioning

confidence: 99%

“…In addition, the hybridization with a gold shell can improve the long term stability of iron oxide entity by preventing massive intracellular biodegradation of iron oxide in 3D cellular spheroids. [104b]…”

Section: Using Mcts To Evaluate Nano Drug Carriersmentioning

confidence: 99%

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Multicellular Tumor Spheroids (MCTS) as a 3D In Vitro Evaluation Tool of Nanoparticles

Stenzel

2018

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Multicellular tumor spheroid models (MCTS) are often coined as 3D in vitro models that can mimic the microenvironment of tissues. MCTS have gained increasing interest in the nano-biotechnology field as they can provide easily accessible information on the performance of nanoparticles without using animal models. Considering that many countries have put restrictions on animals testing, which will only tighten in the future as seen by the recent developments in the Netherlands, 3D models will become an even more valuable tool. Here, an overview on MCTS is provided, focusing on their use in cancer research as most nanoparticles are tested in MCTS for treatment of primary tumors. Thereafter, various types of nanoparticles-from self-assembled block copolymers to inorganic nanoparticles, are discussed. A range of physicochemical parameters including the size, shape, surface chemistry, ligands attachment, stability, and stiffness are found to influence nanoparticles in MCTS. Some of these studies are complemented by animal studies confirming that lessons from MCTS can in part predict the behaviour in vivo. In summary, MCTS are suitable models to gain additional information on nanoparticles. While not being able to replace in vivo studies, they can bridge the gap between traditional 2D in vitro studies and in vivo models.

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Section: Using Mcts To Evaluate Nano Drug Carriersmentioning

confidence: 99%

Section: Using Mcts To Evaluate Nano Drug Carriersmentioning

confidence: 99%

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Multicellular Tumor Spheroids (MCTS) as a 3D In Vitro Evaluation Tool of Nanoparticles

Stenzel

2018

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181

140

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“…Metal nanoparticles are therefore efficient mediums to convert photons to thermal energy. The remarkable photothermal effect of metal nanoparticles has since been applied in many fields, such as catalysis, solar energy harvest, optical switching, cancer therapy, and drug delivery . Yet this effect has not been explored on SWIR photodetection.…”

Section: Introductionmentioning

confidence: 99%

Short‐Wave Infrared Sensor by the Photothermal Effect of Colloidal Gold Nanorods

Xiang

Niu

Sebag

et al. 2018

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Photodetection in the short-wave infrared (SWIR) spectrum is a challenging task achieved often by costly low bandgap compound semiconductors involving highly toxic elements. In this work, an alternative low-cost approach is reported for SWIR sensors that rely on the plasmonic-induced photothermal effect of solution-processed colloidal gold nanorods (Au NRs). A series of uniform solution-processed Au NRs of various aspect ratios are prepared exhibiting a strong and well-defined longitudinal localized surface plasmon resonance (L-LSPR) maximum from 900 nm to 1.3 µm. A hybrid device structure is fabricated by applying Au NRs on the surface of a thermistor. Under a monochromatic illumination, hybrid Au-NR/thermistor devices exhibit a clear photoresponse in the form of photoinduced resistance drop in the wavelength window from 1.0 to 1.8 µm. The photoresponsivity of such hybrid devices reaches a maximum value of 4.44 × 10 Ω W at λ = 1.4 µm (intensity = 0.28 mW cm ), a wavelength in agreement with the L-LSPR of the Au NRs applied. Colloidal Au NRs, capable to perform fast conversion between photon absorption and thermal energy, thus open an interesting avenue for alternative low-cost SWIR photodetection.

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“…High demand for specific magnetic building blocks stems from the potential for diagnostics, therapy and in-vitro analysis 2,42-45 . One of the examples, based on the dynamic magnetic relaxation of magnetic particles, is socalled magnetic hyperthermia, usually applied alone or in combination with other treatments (phototermia or chemotherapy) to destroy cancer tumours [46][47][48][49][50][51] . In this method, it is absolutely essential to predict the frequencies and the characteristic relaxation scales of the systems depending on the particle anisotropy, granulometric composition and magnetic phase concentration [52][53][54] .…”

Section: Introductionmentioning

confidence: 99%

Temperature-dependent dynamic correlations in suspensions of magnetic nanoparticles in a broad range of concentrations: a combined experimental and theoretical study

Иванов

Kantorovich

Zverev

et al. 2016

Phys. Chem. Chem. Phys.

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The interweave of competing individual relaxations influenced by the presence of temperature and concentration dependent correlations is an intrinsic feature of superparamagnetic nanoparticle suspensions. This unique combination gives rise to multiple applications of such suspensions in medicine, nanotechnology and microfluidics. Here, using theory and experiment, we investigate dynamic magnetic susceptibility in a broad range of temperatures and frequencies. Our approach allows, for the first time to our knowledge, to separate clearly the effects of superparamagnetic particle polydispersity and interparticle magnetic interactions on the dynamic spectra of these systems. In this way, we not only provide a theoretical model that can predict well the dynamic response of magnetic nanoparticles systems, but also deepen the understanding of the dynamic nanoparticle self-assembly, opening new perspectives in tuning and controlling the magnetic behaviour of such systems in AC fields.

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Can magneto-plasmonic nanohybrids efficiently combine photothermia with magnetic hyperthermia?

Cited by 102 publications

References 50 publications

Multicellular Tumor Spheroids (MCTS) as a 3D In Vitro Evaluation Tool of Nanoparticles

Multicellular Tumor Spheroids (MCTS) as a 3D In Vitro Evaluation Tool of Nanoparticles

Short‐Wave Infrared Sensor by the Photothermal Effect of Colloidal Gold Nanorods

Temperature-dependent dynamic correlations in suspensions of magnetic nanoparticles in a broad range of concentrations: a combined experimental and theoretical study

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