Reconfigurable Swarms of Ferromagnetic Colloids for Enhanced Local Hyperthermia
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AbstractFerromagnetic particles (FMPs) have attracted a large amount of attention for tumor treatment in recent decades in the form of magnetic hyperthermia and thermoablation therapies. Previous research has commonly focused on the improvement of the specific loss power and the increase in the particle concentration to enhance the heating temperature during hyperthermia. Instead of magnetic hyperthermia with passive particles, here a feasible approach of using reconfigurable swarms of ferromagnetic colloidal particles is reported to realize enhanced local hyperthermia. The concentration of the particle swarm can be tuned up to 500% of the original particle concentration via reversible pattern transformation, i.e., shrinking and swelling. The FMP swarms with a controllable pattern size show their potential for directed energy delivery and offer a new strategy for realizing a highly localized heating effect using a low dose of the active FMPs.
All Author(s) ListBen Wang, Kai Fung Chan, Jiangfan Yu, Qianqian Wang, Lidong Yang, Philip Wai Yan Chiu, Li Zhang
Journal nameAdvanced Functional Materials
Year2018
Month6
Day20
Volume Number28
Issue Number25
PublisherWiley
Article number1705701
ISSN1616-301X
eISSN1616-3028
LanguagesEnglish-United Kingdom
KeywordsColloidal swarms, Magnetic actuation, Reconfigurable swarms, Directed energy delivery, Hyperthermia

Last updated on 2020-01-06 at 01:39