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doi:10.1002/adfm.v28.25

Cited by 9 publications

(5 citation statements)

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“…With the development of nanofabrication technology, researchers can now fabricate Janus microspheres or other shaped structures, which means that the absorptive feature is asymmetric. [109][110][111][112][113] This kind of structure has been used to get controllable directional motion beyond the scope of optical pulling operation. For example, using a trapped particle, the photophoresis may also be used for a true three-dimensional display by scanning.…”

Section: Optical Pulling Force By Photophoresis Effectmentioning

confidence: 99%

Photonic tractor beams: a review

et al. 2019

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Usually, an unfocused light beam, such as a paraxial Gaussian beam, can exert a force on an object along the direction of light propagation, which is known as light pressure. Recently, however, it was found that an unfocused light beam can also exert an optical pulling force (OPF) on an object toward the source direction; the beam is accordingly named an optical tractor beam. In recent years, this intriguing force has attracted much attention and a huge amount of progress has been made both in theory and experiment. We briefly review recent progress achieved on this topic. We classify the mechanisms to achieve an OPF into four different kinds according to the dominant factors. The first one is tailoring the incident beam. The second one is engineering the object's optical parameters. The third one is designing the structured material background, in which the light-matter interaction occurs, and the fourth one is utilizing the indirect photophoretic force, which is related to the thermal effect of light absorption. For all the methods, we analyze the basic principles and review the recent achievements. Finally, we also give a brief conclusion and an outlook on the future development of this field.

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Section: Optical Pulling Force By Photophoresis Effectmentioning

confidence: 99%

Photonic tractor beams: a review

et al. 2019

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“…Because the temperature tolerance of tumor cells is worse than that of normal cells, we can selectively kill tumor tissue by heating tumor tissue area to 42 • C-46 • C under the premise of maximum protection of normal tissue. [1][2][3][4][5][6][7] The specific loss power (SLP) is generally used to evaluate the heating performance of magnetic NPs under an AC field. In the previous reports, many studies focused on the Fe 3 O 4 NPs, and obtained the highest SLP value of 2452 W/g Fe in cubic Fe 3 O 4 NPs under the AC field of 520 kHz and 29 kA/m.…”

Section: Introductionmentioning

confidence: 99%

Effects of dipolar interactions on the magnetic hyperthermia of Zn_0.3Fe_2.7O₄ nanoparticles with different sizes*

Yu¹,

Mi²,

Wang³

et al. 2021

Chinese Phys. B

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Tumor-targeted magnetic hyperthermia has recently attracted much attention. Magnetic nanoparticles (NPs) are heat mediator nanoprobes in magnetic hyperthermia for cancer treatment. In this paper, single cubic spinel structural Zn0.3Fe2.7O4 magnetic NPs with sizes of 14 nm–20 nm were synthesized, followed by coating with SiO2 shell. The SLP value of Zn0.3Fe2.7O4/SiO2 NPs below 20 nm changes non-monotonically with the concentration of solution under the alternating current (AC) magnetic field of 430 kHz and 27 kA/m. SLP values of all Zn0.3Fe2.7O4/SiO2 NPs appear a peak value with change of solution concentration. The solution concentrations with optimal SLP value decrease with increasing magnetic core size. This work can give guidance to the better prediction and control of the magnetic hyperthermia performance of materials in clinical applications.

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“…The composite nanostructure displays extremely rich diagnostic and therapeutic functions in the fields of targeted drug release, magnetic resonance imaging, biological magnetic separation and magnetic hyperthermia. [1][2][3][4][5][6][7][8] Magnetic hyperthermia is a new kind of local tumor hyperthermia. Compared with the photohyperthermia which mainly uses near infrared laser with lower penetration depth, the alternating current (AC) magnetic field can penetrate into the body tissue to 15 cm and 99% of the electromagnetic energy is not absorbed by the human body.…”

Section: Introductionmentioning

confidence: 99%

Enhanced hyperthermia performance in hard-soft magnetic mixed Zn_0.5CoxFe_{2.5 – x}O₄/SiO₂ composite magnetic nanoparticles*

Yu¹,

Wang²,

Li³

et al. 2021

Chinese Phys. B

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High quality Zn0.5Co x Fe2.5 – x O4 (x = 0, 0.05, 0.1, 0.15) serial magnetic nanoparticles with single cubic structures were prepared by the modified thermal decomposition method, and Zn0.5Co x Fe2.5 – x O4/SiO2 composite magnetic nanoparticles were prepared by surface modification of SiO2. The magnetic anisotropy of the sample increases with the increase of the doping amount of Co2+. When the doping amount is 0.1, the sample shows the transition from superparamagnetism to ferrimagnetism at room temperature. In the Zn0.5Co x Fe2.5 – x O4/SiO2 serial samples, the maximum value of specific loss power (SLP) with 1974 W/gmetal can also be found at doping amount of x = 0.1. The composite nanoparticles are expected to be an excellent candidate for clinical magnetic hyperthermia.

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Untitled

Cited by 9 publications

References 0 publications

Photonic tractor beams: a review

Photonic tractor beams: a review

Effects of dipolar interactions on the magnetic hyperthermia of Zn_0.3Fe_2.7O₄ nanoparticles with different sizes*

Enhanced hyperthermia performance in hard-soft magnetic mixed Zn_0.5CoxFe_{2.5 – x}O₄/SiO₂ composite magnetic nanoparticles*

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Untitled

Cited by 9 publications

References 0 publications

Photonic tractor beams: a review

Photonic tractor beams: a review

Effects of dipolar interactions on the magnetic hyperthermia of Zn0.3Fe2.7O4 nanoparticles with different sizes*

Enhanced hyperthermia performance in hard-soft magnetic mixed Zn0.5CoxFe2.5 – x O4/SiO2 composite magnetic nanoparticles*

Contact Info

Product

Resources

About

Effects of dipolar interactions on the magnetic hyperthermia of Zn_0.3Fe_2.7O₄ nanoparticles with different sizes*

Enhanced hyperthermia performance in hard-soft magnetic mixed Zn_0.5CoxFe_{2.5 – x}O₄/SiO₂ composite magnetic nanoparticles*