Nanotechnology is a new and growing area of science and engineering concerned with the use of small scale materials. A fascinating application of such tools have been in the diagnosis and treatment of brain tumours. As such, Qiaojing and colleagues have published a paper examining the use of nanotechnological tools in the prognosis of brain tumours. Although there are obstacles yet to be overcome in the use of nanomaterials to diagnose and treat brain tumours such as neurotoxicity, the future of this treatment looks promising.