Glioblastoma multiforme (GBM) is the most common and most aggressive malignant primary brain tumor in humans. Current GBM treatment includes surgery, radiation therapy, and chemotherapy, sometimes supplemented with novel therapies. Despite recent advances, survival of GBM patients remains poor. Major challenges in GBM treatment are drug delivery across the blood–brain barrier, restriction of damage to healthy brain tissues, and limitation of resistance to therapies. This article reviews recent advances in the application of magnetic nanoparticles (MNPs), gold nanorods (GNRs), and carbon nanotubes (CNTs) for hyperthermia ablation of GBM. First, the article introduces GBM, its current treatment, and hyperthermia as a potential modality for the management of GBM. Second, it introduces MNPs, GNRs, and CNTs as inorganic agents to induce hyperthermia in GBM. Third, it discusses different methodologies for synthesis of each inorganic agent. Finally, it reviews in vitro and in vivo studies in which MNPs, GNRs, and CNTs have been applied for hyperthermia ablation and drug delivery in GBM.

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Theranostics are a multifunctional approach using nanoparticles for combined diagnostic and therapeutic purposes. The hybrid nanoparticles that are applied for these purposes are composed of an inorganic core and an organic shell. The inorganic core acts as a contrast enhancer and the organic shell acts as a drug releaser. Hybrid nanoparticles can be conjugated with targeting moieties and systematically administered to patients to direct the nanoparticles to specific cells such as cancer cells. Theranostics have the potential to significantly improve early stage cancer diagnostics and patient survival. This review discusses preclinical and clinical advances in applications of inorganic nanoparticles for the theranostics of cancer.

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