Abstract
We investigated the hyperthermal and magnetic properties of the stable magnetic suspension of magnetite nanoparticles. With this purpose in mind, we designed a low-frequency oscillator, 300 W, 300 KHz. A sample of the magnetic suspension was placed in the induction coil and heated up to 55°C for 30 minutes. Based on the results of measurements of transverse susceptibility, we can infer that the suspension was superparamagnetic at room temperature and transformed into the magnetic state at nitrogen temperature. Comparing the obtained experimental results with the literature data, we assessed the mean size of nanoparticles, which made up about 10 nm. Computer simulation assessment on the basis of magnetization curve gives close results.
Highlights
IntroductionHealthy cells can preserve their viability at the temperature of up to 42 ̊C
As is known, the normal human body temperature is 37 ̊C
Hyperthermia is often used in combination with radiotherapy and chemotherapy, as the hyperthermia effect on cancer cells makes them less stable with respect to chemical and radiation therapies
Summary
Healthy cells can preserve their viability at the temperature of up to 42 ̊C. Cancer treatment by hyperthermia consists in increasing artificially the temperature in the tumor up to 42 ̊C - 45 ̊C, which results in the death of carcinogenic cells. This approach allows one to destroy the tumor, at the same time minimizing the damage to healthy tissue and limiting the negative side effects of treatment by hyperthermia. Hyperthermia effects may be applied both to a separate tumor localized on the surface or in the depth of the human body and the whole body
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