Effect of Synthesis Temperature on Structure and Magnetic Properties of (La,Nd)0.7Sr0.3MnO3 Nanoparticles

Shlapa, Yuliia; Solopan, Sergii; Боднарук, А.В.; Kulyk, M. M.; Каліта, В. М.; Tykhonenko-Polishchuk, Yulia; Tovstolytkin, A. I.; Belous, A. G.

doi:10.1186/s11671-017-1884-4

Cited by 13 publications

(4 citation statements)

References 36 publications

(43 reference statements)

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“…La 0.7−x Nd x Sr 0.3 MnO 3 , x = 0 and x = 0.1) via the solgel method with further heat treatment at 800 °C and 1300 °C, respectively. The results have indicated that both crystallographic and magnetic parameters (M s /T c ) of the nanoparticles (synthesized at 1300 °C) have monotonously changed with the doping amount of Nd [54].…”

Section: Effects On Physicochemical and Magneticmentioning

confidence: 98%

Recent advancements in manganite perovskites and spinel ferrite-based magnetic nanoparticles for biomedical theranostic applications

Kandasamy

2019

Nanotechnology

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Recently, magnetic nanoparticles (MNPs) based on manganite perovskites (La 1−x Sr x MnO 3 or LSMO) and/or spinel ferrites (i.e. SPFs with the formula MFe 2 O 4 ; M=Co, Mg, Mn, Ni and Zn and mixed SPFs (e.g. Co-Zn, Mg-Mn, Mn-Zn and/or Ni-Zn)) have garnered great interest in magnetic hyperthermia therapy (MHT) as heat-inducing agents due to their tuneable magnetic properties including Curie temperature (T c) to generate controllable therapeutic temperatures (i.e. 42 °C-45 °C)-under the application of an alternating magnetic field (AMF)-for the treatment of cancer. In addition, these nanoparticles are also utilized in magnetic resonance imaging (MRI) as contrast-enhancing agents. However, the employment of the LSMO/SPF-based MNPs in these MHT/MRI applications is majorly influenced by their inherent properties, which are mainly tuned by the synthesis factors. Therefore, in this review article, we have systematically discussed the significant chemical methods used to synthesize the LSMO/SPF-based MNPs and their corresponding intrinsic physicochemical properties (size/shape/crystallinity/dispersibility) and/or magnetic properties (including saturation magnetization (M s )/T c ). Then, we have analyzed the usage of these MNPs for the effective imaging of cancerous tumors via MRI. Finally, we have reviewed in detail the heating capability (in terms of specific absorption rate) of the LSMO/SPF-based MNPs under calorimetric/biological conditions for efficient cancer treatment via MHT. Herein, we have mainly considered the significant parameters-such as size, surface coating (nature and amount), stoichiometry, concentration and the applied AMFs (including amplitude (H) and frequency (f))-that influence the heat induction ability of these MNPs.

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Section: Effects On Physicochemical and Magneticmentioning

confidence: 98%

Recent advancements in manganite perovskites and spinel ferrite-based magnetic nanoparticles for biomedical theranostic applications

Kandasamy

2019

Nanotechnology

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“…are still intensively studied. Works focusing on various physical properties of the compounds, such as magnetoresistance (MR), crystal structure change, metal-insulator transition, specific heat, large magneto-caloric effect, and high electrical conductivity have been reported [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16]. These rare … (T MI ) of about 243 K. In case of T>T MI , the resisitivity as a function of temperature could be described by two different models, namely the variable range hopping (VRH) model or Arhenius model and the adiabatic small polaron hopping (ASPH) model but more in line with the second model (ASPH).…”

Section: Introduction mentioning

confidence: 99%

The Effects of External Magnetic Field on the Physical Properties of La0.41Ca0.59Mn1-xCuxO3 with x = 0.06 and 0.15 in the Temperature Range of 100 – 300 K

et al. 2019

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This work investigated the crystal structure, resistivity and specific heat of La 0.41 Ca 0.59 Mn 1-x Cu x O 3 with x = 0.06 and 0.15. The samples were prepared by a solid reaction method and in milling with high energy milling (HEM) of 700 rpm for ten hours. Neutron scattering with high resolution powder diffraction (HRPD) is used to analyze the phase and crystal structure. For resistivity analysis, four point probes are used, and SQUID Quantum Design is used for specific heat analysis in temperatures range of 100 -300 K. In all cases, the sample has an orthorhombic crystal structure with a space group Pnma. The influence of a magnetic field on the specific heat and resistivity is also determined as a function of temperature. The resistivity increases in the presence of an external magnetic field. At the temperature less than 184 K, the resisitivity follows the Arhenius model (ln R varies as 1/T 0.25 ) while at higher temperatures it fits the metal-semiconductor model (ln R varies as 1/T). The electronic specific heat parameter γ varies with magnetic field at x = 0.06, but not at x = 0.15. earths manganite compounds have found a wide range of application, such as a mild hyperthermia mediator [1], magnetic refrigeration technology near room temperature [5], and a fuel cell cathode [7][8][9].Until now, the results of measurements and analysis of this material still make a lot of differences. Suppose La 1-x Sr x MnO 3 will change from orthorhombic (x<0.2) to rhombohedral (x>0.2) [1], at low temperatures, La 1-x Ca x MnO 3 structure will change from cubic to rhombohedral then to orthorhombic [2], while La 0.65 Ca 0.35-x Ba x MnO 3 has a rhombohedral crystal structure for x<0.15 and a cubic for 0.15

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“…The Curie temperature of La 1−x Sr x MnO 3 strongly depends on the chemical composition: it displays a maximum at x ≈ 0.3 (T Cmax ≈ 370 K) and is quite sharply reduced as x deviates from 0.3 [9][10][11]. A smoother change of the Curie temperature can be reached by additional substitutions either in manganese sublattice [12,13], or in lanthanum sublattice [14,15]. Such substitutions are expected to ensure reliable and controllable shift of T C towards the range, which is necessary for hyperthermia treatment [16].…”

Section: Introductionmentioning

confidence: 99%

Manganite Nanoparticles as Promising Heat Mediators for Magnetic Hyperthermia: Comparison of Different Chemical Substitutions

Tovstolytkin

Shlapa²,

Solopan³

et al. 2018

Acta Phys. Pol. A

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Magnetostatic properties and AC magnetic heating characteristics of (La,Sr)MnO3 nanoparticles with substitutions in manganese and lanthanum sublattices have been studied. The nanoparticles with average sizes in the range 25-38 nm were synthesized via sol-gel method. Fe substitution for Mn, as well as Sm substitution for La have been used in the experiment. It is shown that the increase in substitution level (for both Fe and Sm substitutions) results in lowering the Curie temperature TC and weakening heating efficiency under the action of AC magnetic field. The results demonstrate that the action of AC field causes effective heating of nanoparticles at temperatures lower than TC, while heating efficiency becomes strongly reduced at higher temperatures. It is proved experimentally that the substitutions in Mn sublattice result in more rapid changes of magnetic properties, as compared to the substitutions in La one. Thus, complex substitutions based on suitable combinations of substituting elements may serve as an efficient tool to "softly" tune the maximal temperature achieved during the AC magnetic field induced heating of nanoparticles, which is important for application of these materials as heat mediators for self-controlled magnetic nanohyperthermia.

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Effect of Synthesis Temperature on Structure and Magnetic Properties of (La,Nd)0.7Sr0.3MnO3 Nanoparticles

Cited by 13 publications

References 36 publications

Recent advancements in manganite perovskites and spinel ferrite-based magnetic nanoparticles for biomedical theranostic applications

Recent advancements in manganite perovskites and spinel ferrite-based magnetic nanoparticles for biomedical theranostic applications

The Effects of External Magnetic Field on the Physical Properties of La<sub>0.41</sub>Ca<sub>0.59</sub>Mn<sub>1-x</sub>Cu<sub>x</sub>O<sub>3</sub> with x = 0.06 and 0.15 in the Temperature Range of 100 – 300 K

Manganite Nanoparticles as Promising Heat Mediators for Magnetic Hyperthermia: Comparison of Different Chemical Substitutions

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