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Garraud N, Dhavalikar R, Maldonado-Camargo L, et al. Design and validation of magnetic particle spectrometer for characterization of magnetic nanoparticle relaxation dynamics. AIP Adv. 2017;7(5):056730doi: 10.1063/1.4978003.
Garraud, N., Dhavalikar, R., Maldonado-Camargo, L., Arnold, D. P., & Rinaldi, C. (2017). Design and validation of magnetic particle spectrometer for characterization of magnetic nanoparticle relaxation dynamics. AIP advances, 7(5), 056730. https://doi.org/10.1063/1.4978003
Garraud, Nicolas, et al. "Design and validation of magnetic particle spectrometer for characterization of magnetic nanoparticle relaxation dynamics." AIP advances vol. 7,5 (2017): 056730. doi: https://doi.org/10.1063/1.4978003
Garraud N, Dhavalikar R, Maldonado-Camargo L, Arnold DP, Rinaldi C. Design and validation of magnetic particle spectrometer for characterization of magnetic nanoparticle relaxation dynamics. AIP Adv. 2017 Mar 02;7(5):056730. doi: 10.1063/1.4978003. eCollection 2017 May. PMID: 28344854; PMCID: PMC5336471.
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AIP Adv. 2017 Mar 02;7(5):056730. doi: 10.1063/1.4978003. eCollection 2017 May.

Design and validation of magnetic particle spectrometer for characterization of magnetic nanoparticle relaxation dynamics.

AIP advances

Nicolas Garraud, Rohan Dhavalikar, Lorena Maldonado-Camargo, David P Arnold, Carlos Rinaldi

Affiliations

  1. Department of Electrical and Computer Engineering, University of Florida , Gainesville, Florida 32608, USA.
  2. Department of Chemical Engineering, University of Florida , Gainesville, Florida 32608, USA.

PMID: 28344854 PMCID: PMC5336471 DOI: 10.1063/1.4978003

Abstract

The design and validation of a magnetic particle spectrometer (MPS) system used to study the linear and nonlinear behavior of magnetic nanoparticle suspensions is presented. The MPS characterizes the suspension dynamic response, both due to relaxation and saturation effects, which depends on the magnetic particles and their environment. The system applies sinusoidal excitation magnetic fields varying in amplitude and frequency and can be configured for linear measurements (1 mT at up to 120 kHz) and nonlinear measurements (50 mT at up to 24 kHz). Time-resolved data acquisition at up to 4 MS/s combined with hardware and software-based signal processing allows for wide-band measurements up to 50 harmonics in nonlinear mode. By cross-calibrating the instrument with a known sample, the instantaneous sample magnetization can be quantitatively reconstructed. Validation of the two MPS modes are performed for iron oxide and cobalt ferrite suspensions, exhibiting Néel and Brownian relaxation, respectively.

References

  1. Nat Mater. 2004 Dec;3(12):891-5 - PubMed
  2. Nature. 2005 Jun 30;435(7046):1214-7 - PubMed
  3. Med Phys. 2008 May;35(5):1988-94 - PubMed
  4. Phys Med Biol. 2009 Mar 7;54(5):L1-L10 - PubMed
  5. Rev Sci Instrum. 2012 Mar;83(3):033708 - PubMed
  6. J Colloid Interface Sci. 2012 Jul 1;377(1):40-50 - PubMed
  7. Radiol Phys Technol. 2013 Jul;6(2):399-414 - PubMed
  8. Theranostics. 2016 Jan 01;6(3):291-301 - PubMed
  9. Sci Rep. 2016 Sep 30;6:34180 - PubMed
  10. J Magn Magn Mater. 2016 Dec 1;419:267-273 - PubMed

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