Theoretical investigation of optical properties of optimal architectures of magnetoplasmonic nanoparticles in human tissue for potential applications in photothermal therapy

Hadded, M.; Hmima, Abdelhamid; Maurer, Thomas; Chehaidar, A.; Plain, Jérôme

doi:10.1016/j.optmat.2021.110946

Cited by 9 publications

(8 citation statements)

References 32 publications

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“…The effects of nanorod geometry and orientation on the subsequent optical properties were investigated using the long-radius ratio, effective radius, and incidence angle. Hadded et al [3] . investigate the optical properties of optimized structures of magnetic plasma nanoparticles in human tissues for potential applications in photothermal therapy.…”

Section: Introductionmentioning

confidence: 99%

Study of infrared optical properties of polydisperse aggregated bioparticles based on optimized BCCA model

Ding

Gu²,

Hu³

et al. 2023

AOPC 2022: Optoelectronics and Nanophotonics

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Biomaterials are composed of biological particles, which are aggregated particle systems with complex spatial and fractal structures formed by smaller unit particles due to electrostatic forces, collisions, and adhesion. In this paper, the optical properties of aggregated particles were calculated based on optimized Ballistic Cluster-Cluster Aggregation (BCCA) model. The effect of different porosity and monomer numbers of aggregates on the absorption and scattering properties is investigated. The properties were found to be enhanced with decreasing porosity and increasing number of particle monomers. And it is also found that the error due to the randomness of the structure of the aggregated particles under the same conditions enables the above conclusion to be completely satisfied when the particle number difference is greater than or equal to 6.

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Section: Introductionmentioning

confidence: 99%

Study of infrared optical properties of polydisperse aggregated bioparticles based on optimized BCCA model

Ding

Gu²,

Hu³

et al. 2023

AOPC 2022: Optoelectronics and Nanophotonics

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“…There are also many studies focusing on the optimization morphology of nanoparticles to enhance their optical properties. [29][30][31][32][33] In terms of artificial bioparticles, there is little relevant content on their morphological optimization. The biomaterials' optical extinction properties modulated by the typical shapes as simple as an ellipsoid, cylinder, and equivalent chain have not been simulated and compared before.…”

Section: Introductionmentioning

confidence: 99%

“…improved the absorption properties of gold nanoparticles by optimizing their flow characteristics and morphology to improve the performance of the direct absorption solar collector. There are also many studies focusing on the optimization morphology of nanoparticles to enhance their optical properties 29 – 33 In terms of artificial bioparticles, there is little relevant content on their morphological optimization.…”

Section: Introductionmentioning

confidence: 99%

Optimized shape and structure of artificial bioparticles to enhance the optical extinction properties

Ding

et al. 2022

Opt. Eng.

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. A multilayer structure of microbial cells can result in multiple attenuations of electromagnetic waves, making the biological particles have a strong extinction ability. However, the influence of various morphologies on infrared band optical extinction performance of biomaterials is unclear. The combination of shape, dimension, and structure parameters is proposed to evaluate and enhance the optical extinction properties of artificial bioparticles. Combined with the preliminary work of our research group, four artificial biological particles were selected to simulate and calculate their extinction performance with different parameters theoretically based on the discrete-dipole approximation method. The results show the extinction properties of bioparticles with different shapes and dimensions in the 3.0 to 5.0 μm and 8.0 to 14.0 μm wavebands. It was found that the chain-shaped particles with more constituent spheres and a bending angle of 60 deg as well as the ellipsoid-shaped particles with an axis ratio of 1:2 exhibit better extinction properties in the above two bands. Among them, the regulation of extinction efficiency can reach ∼13.92 % and 18.16%.

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“…Введенная в ткань человека, она, освещенная на частоте ПР, вызывает выгорание и разрушение пораженной клетки. Например, слоистые наночастицы Fe 3 O 4 Au могут существенно усилить поглощение в ближнем окне прозрачности биологических тканей [8], что позволяет их использовать при фототермической терапии раковых клеток [9,10].…”

Section: Introductionunclassified

Исследование Эффекта Пространственной Дисперсии В Металлической Оболочке Несферической Магнетоплазменной Наночастицы

Еремин¹,

Лопушенко²

2022

Оптика И Спектроскопия

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На основе метода дискретных источников исследуется влияние пространственной дисперсии в металлической оболочке магнитоплазмонной наночастицы на поглощение электромагнитной энергии. Гибридная частица составлена из магнитного ядра Fe3O4 или Fe2O3 и золотой оболочки. Рассматривается влияние вытянутости сфероидальных частиц на уровень поглощения энергии. Показано, что учет пространственной дисперсии в оболочке приводит к снижению сечения поглощения до 30% и сопровождается сдвигом плазмонного резонанса в коротковолновую область до 25 nm. Установлено, что осреднение сечения поглощения по направлениям распространения внешнего возбуждения и поляризациям влечет за собой снижение уровня поглощенной энергии в три раза. Ключевые слова: метод дискретных источников, плазмонный резонанс, пространственная дисперсия, теория обобщенного нелокального отклика.

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Theoretical investigation of optical properties of optimal architectures of magnetoplasmonic nanoparticles in human tissue for potential applications in photothermal therapy

Cited by 9 publications

References 32 publications

Study of infrared optical properties of polydisperse aggregated bioparticles based on optimized BCCA model

Study of infrared optical properties of polydisperse aggregated bioparticles based on optimized BCCA model

Optimized shape and structure of artificial bioparticles to enhance the optical extinction properties

Исследование Эффекта Пространственной Дисперсии В Металлической Оболочке Несферической Магнетоплазменной Наночастицы

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