Towards real-time and remote magnetonanothermometry with temperature accuracy better than 0.05K

Pi, Shiqiang; Liu, Wenzhong; Zhong, Jing; Qi, Xiang; Morais, P.C.

doi:10.1016/j.sna.2015.09.017

Cited by 8 publications

(6 citation statements)

References 27 publications

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“…This technique is based on the real-time measure of magnetization and magnetic susceptibility, and allows contact-less quantification of heat with high precision. It can therefore represent a first step toward real-time and accurate heat quantification in vivo, which is an essential step toward implementation of magnetic hyperthermia in clinic. , …”

Section: Introductionmentioning

confidence: 99%

“…It can therefore represent a first step toward real-time and accurate heat quantification in vivo, which is an essential step toward implementation of magnetic hyperthermia in clinic. 36,37 Nowadays, the most commonly used and reliable systems for probing the heat of SPIONs are fiber optic cables, which can record information from the colloidal suspension. However, the results are dependent on the spatial position of the temperature sensor.…”

Section: Introductionmentioning

confidence: 99%

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Lock-In Thermography as an Analytical Tool for Magnetic Nanoparticles: Measuring Heating Power and Magnetic Fields

et al. 2017

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Magnetic nanoparticles and their ability to convert electromagnetic energy into heat are of explicit interest for various applications. However, precise quantification of their heating efficiency is not always upfront, and several parameters render comparative studies challenging. This paper describes the theory behind lock-in thermography, a new technique for quantifying the heating properties of magnetic nanoparticles. This technique allows the investigation of some of the potential sources of variability: key factors such as magnetic field inhomogeneity and its effects on the heating power are explored in detail. The presented results, obtained from various nanoparticle batches of different origins, highlight the importance of pursuing a standardized and systematic approach when quantifying the heating efficiency of magnetic nanoparticles.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Lock-In Thermography as an Analytical Tool for Magnetic Nanoparticles: Measuring Heating Power and Magnetic Fields

et al. 2017

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“…To generate a triangular magnetic field requires a triangular waveform current driving the scanner. A pre-edited input voltage [30,31] generated by the NI DAQ USB-6356 system was amplified using an AE 7548 low harmonics distortion power amplifier (AE Techron) to drive the scanner. The weak high-frequency magnetic field was generated using the solenoidal coil as well as to excite the MNPs.…”

Section: Methodsmentioning

confidence: 99%

Real-time and quantitative isotropic spatial resolution susceptibility imaging for magnetic nanoparticles

Liu

Jiang

2018

Meas. Sci. Technol.

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The magnetic transparency of biological tissue allows the magnetic nanoparticle (MNP) to be a promising functional sensor and contrast agent. The complex susceptibility of MNPs, strongly influenced by particle concentration, excitation magnetic field and their surrounding microenvironment, provides significant implications for biomedical applications. Therefore, magnetic susceptibility imaging of high spatial resolution will give more detailed information during the process of MNP-aided diagnosis and therapy. In this study, we present a novel spatial magnetic susceptibility extraction method for MNPs under a gradient magnetic field, a low-frequency drive magnetic field, and a weak strength high-frequency magnetic field. Based on this novel method, a magnetic particle susceptibility imaging (MPSI) of millimeter-level spatial resolution (<3 mm) was achieved using our homemade imaging system. Corroborated by the experimental results, the MPSI shows real-time (1 s per frame acquisition) and quantitative abilities, and isotropic high resolution.

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“…Several MNTMs use magnetic nanoparticles (MNPs) where temperature is measured by employing the magnetization of MNPs in alternating current (AC) or direct current (DC) magn etic field [13][14][15][16][17][18][19]. Weaver et al found that temper ature could be determined from the ratio of the third and fifth magnetization harmonics of MNPs in an AC magn etic field [13][14][15].…”

Section: Introductionmentioning

confidence: 99%

“…Weaver et al found that temper ature could be determined from the ratio of the third and fifth magnetization harmonics of MNPs in an AC magn etic field [13][14][15]. Liu et al developed methods of magnetic nanothermometry using Langevin function and DC magnetization or AC magnetization harmonics [5,6,[16][17][18][19][20][21][22][23][24].…”

Section: Introductionmentioning

confidence: 99%

Design and use of a very stable magnetic nanothermometer

Wei

et al. 2016

Meas. Sci. Technol.

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The effect of the nonlinear time-drift gain in the power amplifier on the instability in a magnetic nanothermometer was studied to allow a very stable magnetic nanotermometer to be designed, which was then used to measure the temperature of a light-emitting diode pn-junction. Experiments showed that the system response fluctuated by less than 0.04% and the temperature measurement error was less than 0.1 K when real-time measurements were made at 1 s intervals. The temperature of a pn-junction of a light-emitting diode cooled using a heat sink or circulating water was measured successfully using the improved magnetic nanothermometer.

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Towards real-time and remote magnetonanothermometry with temperature accuracy better than 0.05K

Cited by 8 publications

References 27 publications

Lock-In Thermography as an Analytical Tool for Magnetic Nanoparticles: Measuring Heating Power and Magnetic Fields

Lock-In Thermography as an Analytical Tool for Magnetic Nanoparticles: Measuring Heating Power and Magnetic Fields

Real-time and quantitative isotropic spatial resolution susceptibility imaging for magnetic nanoparticles

Design and use of a very stable magnetic nanothermometer

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