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U15. Functional Characterization of Magnetic NPs Unit– Equipment

U15. Functional Characterization of Magnetic NPs Unit– Equipment

U15-E02. T1 and T2 Nuclear Magnetic Resonance Relaxometry

T1 and T2 Nuclear Magnetic Resonance Relaxometry:

Stelar SmarTRACER (Italy) + Bruker (Germany) 2 T electromagnet. Fast Field Cycling designed to measure longitudinal nuclear magnetic relaxation as a function of the magnetic field intensity. Measurements of the longitudinal (T1) and transverse (T2) time constants as a function of the Larmor frequency.
•• Measurement range: continuous measurement from 10 kHz (almost null field) to 10 MHz (0.25T) to obtain T1.
•• Measurement range: measurement from 10 MHz (0.25T) to 80MHz (1.9T) at desired intervals to obtain T1 and T2.
•• Inhomogeneity lower than 150 PPM.
•• Main pulse sequences implemented with the possibility of modifying parameters to the design and programming of new sequences.
•• Temperature control from -120°C to +140°C with accuracy and stability of 0.1°C.

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U15-E01. Alternating Gradient Magnetometer

Alternating Gradient Magnetometer:

MicroMag M2900-4 AGM (Princeton Measurements Corporation, USA) for the magnetic and mechanical characterization of nanoparticles in various different media:
•• Magnetic Moment Range: 1nA.m² to 5mA.m² full scale (1μemu to 5emu).
•• Resolution: 0,005% of full scale with 60% overrange capability.
•• Speed of measurement: 100 ms/point.
•• High sensitivity: 10 pA.m² (10 nemu) of standard deviation at room temperature and with 1 second of averaging time.
•• High performance with samples of very small magnetization and dimensions (few nanometers).
•• The AGM can accommodate a large range of samples with widely different properties.

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