Preparation of ICG-FePt nanoparticles promising for magnetic resonance imaging contrast agent and hyperthermia applications

Ren Jei Chung, Keng-Liang Ou, Shao Pou Chen, Hsuan Liang Liu

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

The use of superparamagnetic FePt nanoparticle for biomedical applications has been investigated. Indocyanine green (ICG) is a tricarbocyanine approved by the U.S. FDA for use in humans for fluorescence imaging and diagnosis in clinical applications. Using a simplified method, we successfully synthesized FePt nanoparticles and modified the surfaces of the nanoparticles with various functional agents. By heating the FePt nanoparticles, 2-aminoethanethiol and indocyanine green were transferred onto the FePt nanoparticles without the use of toxic chemicals, and multiple functional nanomaterials were produced. The promising nanotheranostic materials were constructed for fluorescence and magnetic guidance dual-modals by the introduction of chemical bonds between ICG and 2-aminoethanethiol, which was transferred onto magnetic FePt nanoparticles. It was proven that the resulting composites with an average diameter of 1.85 nm could be stimulated to high temperature elevation rates with high-frequency induction heating. Different concentrations of FePt nanoparticles had excellent heating rates that were at least 0.016 cal/s, which demonstrated that the materials could serve as an outstanding agent for hyperthermia therapy in cancer. 3T Magnetic Resonance (3T-MR) imaging showed that the nanoparticles had excellent concentration-dependent contrasting effects, demonstrating promise for use as a contrast agent with good biocompatibility.
Original languageEnglish
Pages (from-to)994-999
Number of pages6
JournalAdvanced Powder Technology
Volume27
Issue number3
DOIs
Publication statusPublished - May 1 2016

Keywords

  • FePt nanoparticles
  • Hyperthermia
  • Indocyanine green
  • Magnetic resonance imaging

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Mechanics of Materials

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