The effect of tissue-mimicking phantom compressibility on magnetic hyperthermia

Katarzyna Kaczmarek, Radosław Mrówczyński, Tomasz Hornowski, Rafał Bielas, Arkadiusz Józefczak

Research output: Contribution to journalArticle

4 Citations (Scopus)
7 Downloads (Pure)

Abstract

During hyperthermia, magnetite nanoparticles placed in an AC magnetic field become a source of heat. It has been shown that in fluid suspensions, magnetic particles move freely and generate heat easily. However, in tissues of different mechanical properties, nanoparticle movement is limited and leads to a small temperature rise in tissue. Therefore, it is crucial to conduct magnetic hyperthermia experiments in similar conditions to the human body. The effect of tissue-mimicking phantom compressibility on the effectiveness of magnetic hyperthermia was investigated on agar phantoms. Single and cluster nanoparticles were synthesized and used as magnetic materials. The prepared magnetic materials were characterized by transmission electron microscopy (TEM), and zeta potential measurements. Results show that tissue-mimicking phantom compressibility decreases with the concentration of agar. Moreover, the lower the compressibility, the lower the thermal effect of magnetic hyperthermia. Specific absorption rate (SAR) values also proved our assumption that tissue-mimicking phantom compressibility affects magnetic losses in the alternating magnetic field (AMF).
Original languageEnglish
Article number803
Number of pages13
JournalNanomaterials
Volume9
Issue number5
DOIs
Publication statusPublished - 25 May 2019

Keywords

  • magnetic nanoparticles
  • magnetic hyperthermia
  • Brown relaxation
  • compressibility
  • tissue-mimicking phantom

Fingerprint Dive into the research topics of 'The effect of tissue-mimicking phantom compressibility on magnetic hyperthermia'. Together they form a unique fingerprint.

  • Cite this

    Kaczmarek, K., Mrówczyński, R., Hornowski, T., Bielas, R., & Józefczak, A. (2019). The effect of tissue-mimicking phantom compressibility on magnetic hyperthermia. Nanomaterials, 9(5), [803]. https://doi.org/10.3390/nano9050803