Key points from article :
Thermotherapy is limited by the damage it causes to healthy tissues.
At 42-45°C cancer cells can be weakened or killed, while healthy cells are left unscathed.
Zn-Co-Cr ferrite nanoparticles developed that stop heating when they reach 45°C.
In vitro tests have suggested that the nanoparticles are low toxicity.
The study was published in the Nanoscale journal.