Background: From last few decades, nanoparticles have witnessed breakthroughs in the treatment of neurological
disorders due to their unique physiochemical properties which make them effective drug delivery system. However, there is
not much information available on the toxicity of nanoparticles in neuronal disorders. The toxic effect of nanoparticles on
brain disorders and their regulatory issues is the primary concern of the healthcare industry.
Methods: A strategical literature search was performed on a various bibliographic database such as Scopus, PubMed,
SciFinder, Google Scholar, Medline, Google patent, Derwent Innovation, and Orbit Intelligence for retrieval of peerreviewed
articles and patents on regulatory issues and toxicity of nanoparticles in neuronal disorders over the past four decades
or so. The relevant hits of articles and patents were analyzed and citation search for the relevant documents was carried
Results: The literature documents have been summarized regarding the existing regulatory issues and toxicity of nanoparticles
on neuronal disorders with a focus on the detailed mechanism of developmental toxicity of nanoparticles. The focus of
this report is to emphasize the negative effects of nanoparticle on neuronal disorders which may partially contribute to management
of toxicity of nanoparticles.
Conclusion: Although nanoparticles have unique physical and chemical properties that explain the broad range of application
for the central nervous system, they can also manifest neurotoxic effects due to cell necrosis, a generation of free radicals,
immune responses and neuroinflammation. Thus, this review highlights on risk assessment, safety regulations and regulatory
guidelines of nanoparticles which may reduce adverse reactions in humans and animals.