Synthesised Conductive/Magnetic Composite Particles for Magnetic Ablations of Tumours

Chiang Wen Lee, Ju Fang Liu, Wen Chun Wei, Ming Hsien Chiang, Ting Yuan Chen, Shu-Hsien Liao, Yao Chang Chiang, Wen Cheng Kuo, Kuen Lin Chen, Kuo Ti Peng, Yen Bin Liu, Jen Jie Chieh*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Ablation is a clinical cancer treatment, but some demands are still unsatisfied, such as electromagnetic interferences amongst multiple ablation needles during large tumour treatments. This work proposes a physical synthesis for composite particles of biocompatible iron oxide particles and liquid metal gallium (Ga) with different alternative-current (AC)-magnetic-field-induced heat mechanisms of magnetic particle hyperthermia and superior resistance heat. By some imaging, X-ray diffraction, and vibrating sample magnetometer, utilised composite particles were clearly identified as the cluster of few iron oxides using the small weight ratio of high-viscosity liquid metal Ga as conjugation materials without surfactants for physical targeting of limited fluidity. Hence, well penetration inside the tissue and the promotion rate of heat generation to fit the ablation requirement of at least 60 °C in a few seconds are achieved. For the injection and the post-injection magnetic ablations, the volume variation ratios of mice dorsal tumours on Day 12 were expressed at around one without tumour growth. Its future powerful potentiality is expected through a percutaneous injection.

Original languageEnglish
Article number1605
JournalMicromachines
Volume13
Issue number10
DOIs
Publication statusPublished - 2022 Oct

Keywords

  • composite
  • Ga
  • iron oxide
  • magnetic ablation
  • tumour

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Mechanical Engineering
  • Electrical and Electronic Engineering

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