The «nanoscalpel» for microsurgery of glial brain tumours
Glial tumours are among the most common primary brain tumours of neuroectodermal origin characterised by infiltrative growth and widespread invasion of tumour cells into healthy tissue. A highly demanded method for therapy of such tumours may become magnetomechanical microsurgery substituting the scalpel with the «nanoscalpel» consisting of: (1) nanostructures converting the magnetic moment into the mechanical one, and (2) targeted ligands. Suitable structures for the nanoscalpel are magnetic disks with a high degree of saturation magnetisation and absent remanent magnetisation. The search for publications dated 1992-2021 was carried out in the PubMed and e-LIBRARY databases. The search keywords were «magnetic discs», «glial tumors», «microsurgery» and «magnetomechanical transduction». This review discusses biological effects of magnetic disks, their mechanism of action and toxicity. It has been concluded that a «nanoscalpel» remotely controlled using a magnetic field may become an effective and safe tool for microsurgery of glial brain tumours.