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Biomaterials. 2015 Mar;44:91-102. doi: 10.1016/j.biomaterials.2014.12.035. Epub 2015 Jan 12.

Insights into a microwave susceptible agent for minimally invasive microwave tumor thermal therapy.

Author information

1
Laboratory of Controllable Preparation and Application of Nanomaterials, Center for Micro/Nanomaterials and Technology, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, People's Republic of China; University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China.
2
Laboratory of Controllable Preparation and Application of Nanomaterials, Center for Micro/Nanomaterials and Technology, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, People's Republic of China.
3
Department of Electronic Engineering, Huaihai Institute of Technology, Lianyungang 222005, People's Republic of China.
4
Beijing M&Y Electronics Co. Ltd., Beijing 100015, People's Republic of China.
5
Laboratory of Controllable Preparation and Application of Nanomaterials, Center for Micro/Nanomaterials and Technology, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, People's Republic of China. Electronic address: mengxw@mail.ipc.ac.cn.

Abstract

This work develops a kind of sodium alginate (SA) microcapsules as microwave susceptible agents for in vivo tumor microwave thermal therapy for the first time. Due to the excellent microwave susceptible properties and low bio-toxicity, excellent therapy efficiency can be achieved with the tumor inhibiting ratio of 97.85% after one-time microwave thermal therapy with ultralow power (1.8 W, 450 MHz). Meanwhile, the mechanism of high microwave heating efficiency was confirmed via computer-simulated model in theory, demonstrating that the spatial confinement efficiency of microcapsule walls endows the inside ions with high microwave susceptible properties. This strategy offers tremendous potential applications in clinical tumor treatment with the benefits of safety, reliability, effectiveness and minimally invasiveness.

KEYWORDS:

Microcapsule; Microwave; Sodium alginate; Thermal therapy; Tumor

[Indexed for MEDLINE]

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