Mpms xl 7 system

Manufactured by Quantum Design

The MPMS-XL-7 system is a versatile laboratory instrument designed for the measurement and analysis of magnetic properties of materials. It features a superconducting magnet capable of generating magnetic fields up to 7 Tesla, and can operate in a wide temperature range from 1.9 to 400 Kelvin. The system can perform various magnetic measurements, including magnetization, susceptibility, and hysteresis loops, to provide insights into the fundamental magnetic characteristics of the sample under investigation.

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Lab products found in correlation

Zetasizer nano zs instrument, by Malvern Panalytical (2 mentions) 1600 spectrometer, by PerkinElmer (1 mentions) Av 300 spectrometer, by Bruker (1 mentions) Mpms7 system, by Quantum Design (1 mentions) Iron chloride, by Sinopharm (1 mentions) Achieva 3.0t, by Philips (1 mentions) Gadolinium acetate, by Thermo Fisher Scientific (1 mentions) Gadolinium 3 chloride hexahydrate, by Thermo Fisher Scientific (1 mentions) Ultima 4 x ray diffractometer, by Rigaku (1 mentions) Sodium citrate, by Sinopharm (1 mentions) Sodium oleate, by Sinopharm (1 mentions) Ultima 4 system, by Rigaku (1 mentions) Pdc 32g, by Harrick (1 mentions) Tim trio mr scanner, by Siemens (1 mentions) Cary 100, by Agilent Technologies (1 mentions) Vertex 70, by Bruker (1 mentions)

4 protocols using mpms xl 7 system

Characterization of Magnetic Materials

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NMR spectra were collected on a Bruker AV-300 spectrometer. Infrared spectra were obtained using KBr pellets on a PerkinElmer 1600 spectrometer in the 450–4000 cm⁻¹ range. DC magnetic measurements were collected using a Quantum Design MPMS7 system. Samples were restrained with parafilm to prevent torqueing. The magnetic background caused by the gel cap and the parafilm were subtracted by blank measurements. The diamagnetism correction was estimated from Pascal's constant.²² Elemental analyses (C, H, N) and dc magnetic susceptibility measurements were carried by the National Taiwan University Instrument Centre, College of Science. AC magnetic susceptibility data were collected using the Quantum Design MPMS XL7 system of the National Chiao Tung University. Oriented single crystal magnetization hysteresis loops were measured by employing a micro-SQUID array that was described elsewhere.²³ A single crystal was put onto the array and external field is oriented parallel to the crystal easy axis.

Yang E.C., Huang S.Y., Wernsdorfer W., Hong L.X., Damjanovic M., Niekamp L, & Lee G.H. (2019). A new member of a class of rod-like Mn12 single molecule magnets using 2-(pyridine-2-ly)propan-2-ol. RSC Advances, 9(65), 37740-37746.

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Gadolinium-Based Magnetic Nanomaterials Synthesis

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1-octadecene (ODE, tech. 90%) and oleic acid (tech. 90%) were purchased from Acros. Gadolinium (III) chloride hexahydrate (99.99%) and gadolinium acetate (99.9%) were purchased from Alfa Aesar. Sodium oleate, sodium citrate, iron chlorides and other reagents are purchased from Sinopharm Chemical Reagent Co. Ltd. All chemicals were used as received without further purification. TEM and HRTEM images were recorded on JEM-2100 microscope at an accelerating voltage of 200 kV. X-ray diffraction (XRD) patterns were recorded by Rigaku Ultima IV X-ray diffractometer with Cu Kα radiation. The X-ray photoelectron spectroscopy (XPS) measurements were carried out by a PHI Quantum-2000 photoelectron spectrometer. The hysteresis loops (at 300 K and 5 K) and temperature-dependent magnetization mesurements were recorded on Quantum Design MPMS-XL-7 system. The element analysis of metal ions was measured by inductively coupled plasma atomic emission spectroscopy (ICP-AES). The dynamic light scattering measurements were performed on Malvern Zetasizer nano ZS instrument. The MRI measurements and T₂/T₁ relaxation time testing were performed on 0.5 T NMI20-Analyst NMR Analyzing & Imaging system (Niumag Corporation, Shanghai, China), 3.0 T imaging system (Philips Medical System, ACHIEVA 3.0 T).

Zhou Z., Hu R., Wang L., Sun C., Fu G, & Gao J. (2016). Water bridge coordination on metal-rich facets of Gd2O3 nanoplates confers high T1 relaxivity. Nanoscale, 8(41), 17887-17894.

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Comprehensive Characterization of Nanoparticles

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Transmission electron microscopy (TEM) and high-resolution TEM (HRTEM) images were obtained by using a JEM-2100 microscope with an accelerating voltage of 200 kV. The X-ray diffraction (XRD) patterns were acquired on a Rigaku Ultima IV system. The energy-dispersive X-ray (EDX) element mapping analysis was performed on a Tecnai F30 microscope at an accelerating voltage of 300 kV. The hysteresis loops (at 300 K) were recorded on a Quantum Design MPMS-XL-7 system. The samples ready for magnetization measurement were washed three times and then treated with plasma clean-ing (PDC-32G, Harrick Plasma) to remove the surfactants. The metal concentration of the samples was detected by inductively coupled plasma atomic emission spectroscopy (ICP-AES). The dynamic light scattering (DLS) measurements were performed on a Malvern Zetasizer nano ZS instrument.

Yang L., Zhou Z., Liu H., Wu C., Zhang H., Huang G., Ai H, & Gao J. (2015). Europium-engineered iron oxide nanocubes with high T1 and T2 contrast abilities for MRI in living subjects. Nanoscale, 7(15).

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Characterization of Magnetite Nanoparticles

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TEM, HR-TEM images and the SAED pattern of nanocubes were obtained using a high resolution transmission electron microscope (TEM -Tecnai G2 F30) operating at 300 kV. UV-Vis absorption spectra were recorded using a UV-Vis spectrophotometer (Varian -Cary 100). FT-IR spectra was recorded by using an FT-IR spectrometer (Bruker-Vertex 70). Magnetic measurements (M-H and M-T curves) were recorded on a Quantum Design MPMS-XL-7 system. MR phantom experiments were performed at room temperature on a 3 T Siemens TrioTim MR scanner. Various concentrations (3 to 60 µM) of magnetite nanoparticles were prepared for MRI phantom study. T 1 -Weighted and T 2 -weighted phantom MR images of magnetite nanoparticles were acquired using a spin echo (SE) sequence under the following parameters: TR/TE = 1000/12 ms (T 1 ), TR/TE = 10 000/330 ms (T 2 ), (slice thickness = 3 mm, flip angle = 90°, acquisition matrix = 384 pixels × 384 pixels, FoV = 120 × 120 mm 2 ).

Sharma V.K., Alipour A., Soran-Erdem Z., Aykut Z.G, & Demir H.V. (2015). Highly monodisperse low-magnetization magnetite nanocubes as simultaneous T(1)-T(2) MRI contrast agents. Nanoscale, 7(23).

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