Smart magnetic nanopowder based on the manganite perovskite for local hyperthermia

Pashchenko, A. V.; Liedienov, N.A.; Fesych, I.V.; Li, Quanjun; Pitsyuga, V. G.; Турченко, В. А.; Pogrebnyak, V. G.; Liu, Bingbing; Levchenko, G. G.

doi:10.1039/d0ra06779b

Cited by 26 publications

(6 citation statements)

References 67 publications

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“…Moreover, the resistors for Joule-heating can be further microminiaturized to enlarge the increased temperature under the same input power. For example, microneedles powered by wearable MEGs can be developed for local hyperthermia to kill cancer cells and destroy nearby blood vessels …”

Section: Results and Discussionmentioning

confidence: 99%

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Wearable Ultrahigh Current Power Source Based on Giant Magnetoelastic Effect in Soft Elastomer System

et al. 2021

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In this study, we present the observation of the giant magnetoelastic effect that occurs in soft elastomer systems without the need of external magnetic fields and possesses a magnetomechanical coupling factor that is four times larger than that of traditional rigid metal-based ferromagnetic materials. To investigate the fundamental scientific principles at play, we built a linear model by using COMSOL Multiphysics, which was consistent with the experimental observations. Next, by combining the giant magnetoelastic effect with electromagnetic induction, we developed a magnetoelastic generator (MEG) for biomechanical energy conversion. The wearable MEG demonstrates an ultrahigh output current of 97.17 mA, a low internal impedance of around ∼40 Ω, and an intrinsic waterproof property. We further leveraged the wearable MEG as an ultrahigh current power source to drive a Joule-heating textile for personalized thermoregulation, which increased the temperature of the fiber-shaped resistor by 0.2 °C. The development of the wearable MEG will act as an alternative and compelling approach for on-body electricity generation and arouse a wide range of possibilities in the renewable energy community.

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Section: Results and Discussionmentioning

confidence: 99%

“…For example, microneedles powered by wearable MEGs can be developed for local hyperthermia to kill cancer cells and destroy nearby blood vessels. 39…”

Section: Resultsmentioning

confidence: 99%

Wearable Ultrahigh Current Power Source Based on Giant Magnetoelastic Effect in Soft Elastomer System

et al. 2021

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“…The field H = 50 Oe used for obtaining the m FC (T) curves is less than the value of the coercivity for the powder at room temperature. Therefore, it should make sure that the course of the m FC (T, H = 50 Oe) curve is not affected by blocking the directions of the magnetic moments of particles due to the field of their magnetic anisotropy [60,63]. Since the field Н = 10 2 kOe is much greater than the value of the coercivity of the particles, the effect of blocking the directions of the magnetic moments of particles by their magnetic anisotropy field will not be observed.…”

Section: Comparative Analysis Of Magnetic Properties Between La 06 Ag...mentioning

confidence: 99%

Magnetoactive elastomer based on superparamagnetic nanoparticles with Curie point close to room temperature

Dzhezherya¹,

Xu²,

Cherepov³

et al. 2021

Materials & Design

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“…Magnetostriction, in which the physical dimensions of magnetic materials change when a magnetic field is applied, is of great relevance for the development of cutting-edge sensors for automotive and energy technology. − Magnetostriction often involves a reversible energy exchange between the mechanical form and the magnetic form. In reality, magnetostrictive materials can be used in numerous industrial applications, particularly in sensors and actuators, because of their capacity to convert a precise amount of energy from one form to another. − As a result, currently, there is an enormous interest in one particular group or family of functional materials that exhibit magnetostriction and are called magnetostrictive smart materials (MSMs). ,,,− Due to their magnetoelastic properties, these MSMs are also widely used in a variety of technological applications, such as stress sensors, actuators, magnetostrictive filters, controlled fuel injection systems, sensors, sonar transducer systems, etc. Alloy-based MSMs, such as Terfenol-D and Galfenol, exhibit exceptional magnetostriction strain (λ) but only in the single-crystal form.…”

Section: Introductionmentioning

confidence: 99%

Effect of High-Anisotropic Co²⁺ Substitution for Ni²⁺ on the Structural, Magnetic, and Magnetostrictive Properties of NiFe₂O₄: Implications for Sensor Applications

Satish

Shashanka

Saha

et al. 2023

ACS Appl. Mater. Interfaces

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This work reports on the effect of substituting a low-anisotropic and low-magnetic cation (Ni 2+ , 2μ B ) by a high-anisotropic and high-magnetic cation (Co 2+ , 3μ B ) on the crystal structure, phase, microstructure, magnetic properties, and magnetostrictive properties of NiFe 2 O 4 (NFO). Co-substituted NFO (Ni 1−x Co x Fe 2 O 4 , NCFO, 0 ≤ x ≤ 1) nanomaterials were synthesized using glycine-nitrate autocombustion followed by postsynthesis annealing at 1200 °C. The X-ray diffraction measurements coupled with Rietveld refinement analyses indicate the significant effect of Co-substitution for Ni, where the lattice constant (a) exhibits a functional dependence on composition (x). The a-value increases from 8.3268 to 8.3751 Å (±0.0002 Å) with increasing the "x" value from 0 to 1 in NCFO. The a−x functional dependence is derived from the ionic-size difference between Co 2+ and Ni 2+ , which also induces grain agglomeration, as evidenced in electron microscopy imaging. The chemical bonding of NCFO, as probed by Raman spectroscopy, reveals that Co(x)-substitution induced a red shift of the T 2g (2) and A 1g (1) modes, and it is attributed to the changes in the metal−oxygen bond length in the octahedral and tetrahedral sites in NCFO. X-ray photoelectron spectroscopy confirms the presence of Co 2+ , Ni 2+ , and Fe 3+ chemical states in addition to the cation distribution upon Co-substitution in NFO. Chemical homogeneity and uniform distribution of Co, Ni, Fe, and O are confirmed by EDS. The magnetic parameters, saturation magnetization (M S ), remnant magnetization (M r ), coercivity (H C ), and anisotropy constant (K 1 ) increased with increasing Co-content "x" in NCFO. The magnetostriction (λ) also follows a similar behavior and almost linearly varies from −33 ppm (x = 0) to −227 ppm (x = 1), which is primarily due to the high magnetocrystalline anisotropy contribution from Co 2+ ions at the octahedral sites. The magnetic and magnetostriction measurements and analyses indicate the potential of NCFO for torque sensor applications. Efforts to optimize materials for sensor applications indicate that, among all of the NCFO materials, Co-substitution with x = 0.5 demonstrates high strain sensitivity (−2.3 × 10 −9 m/A), which is nearly 2.5 times higher than that obtained for their intrinsic counterparts, namely, NiFe 2 O 4 (x = 0) and CoFe 2 O 4 (x = 1).

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Smart magnetic nanopowder based on the manganite perovskite for local hyperthermia

Abstract: Local heating of cancer cells up to 42 °C for a short time (∼1.5 min) by smart magnetic nanoparticles.

Cited by 26 publications

References 67 publications

Wearable Ultrahigh Current Power Source Based on Giant Magnetoelastic Effect in Soft Elastomer System

Wearable Ultrahigh Current Power Source Based on Giant Magnetoelastic Effect in Soft Elastomer System

Magnetoactive elastomer based on superparamagnetic nanoparticles with Curie point close to room temperature

Effect of High-Anisotropic Co²⁺ Substitution for Ni²⁺ on the Structural, Magnetic, and Magnetostrictive Properties of NiFe₂O₄: Implications for Sensor Applications

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Smart magnetic nanopowder based on the manganite perovskite for local hyperthermia

Abstract: Local heating of cancer cells up to 42 °C for a short time (∼1.5 min) by smart magnetic nanoparticles.

Cited by 26 publications

References 67 publications

Wearable Ultrahigh Current Power Source Based on Giant Magnetoelastic Effect in Soft Elastomer System

Wearable Ultrahigh Current Power Source Based on Giant Magnetoelastic Effect in Soft Elastomer System

Magnetoactive elastomer based on superparamagnetic nanoparticles with Curie point close to room temperature

Effect of High-Anisotropic Co2+ Substitution for Ni2+ on the Structural, Magnetic, and Magnetostrictive Properties of NiFe2O4: Implications for Sensor Applications

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Product

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Effect of High-Anisotropic Co²⁺ Substitution for Ni²⁺ on the Structural, Magnetic, and Magnetostrictive Properties of NiFe₂O₄: Implications for Sensor Applications