Magnetic Nanoparticles with High Specific Absorption Rate at Low Alternating Magnetic Field
Keyword(s):
New Type
◽
This paper describes the synthesis and properties of a new type of magnetic nanoparticle (MNP) for use in the hyperthermia treatment of tumors. These particles consist of 2–4 nm crystals of gamma- Fe 2 O 3 gathered in 20–40 nm aggregates with a coating of carboxymethyl-dextran, producing a zetasize of 110–120 nm. Despite their very low saturation magnetization (1.5–6.5 emu/g), the specific absorption rate (SAR) of the nanoparticles is 22–200 W/g at applied alternating magnetic field (AMF) with strengths of 100–500 Oe at a frequency of 160 kHz.
2017 ◽
Vol 50
(45)
◽
pp. 455005
◽
2016 ◽
Vol 415
◽
pp. 2-7
◽
2017 ◽
Vol 188
◽
pp. 30-38
◽
Keyword(s):
2019 ◽
2020 ◽
Vol 1439
◽
pp. 012044