Recently, traumatic brain injury (TBI) has been a growing disorder due to frequent
brain dysfunction. The Glasgow Coma Scale expresses TBI as classified as having mild, moderate,
or severe brain effects, according to the effects on the brain. Brain receptors undergo various
modifications in their pathology through chemical synaptic pathways, leading to depression,
Alzheimer's, and Parkinson's disease. These brain disorders can be controlled using central receptors
such as dopamine, glutamate, and γ-aminobutyric acid, which are clearly explained in
this review. Furthermore, there are many complications in TBI's clinical trials and diagnostics,
leading to insignificant treatment, causing permanent neuro-damage, physical disability, and
even death. Bio-screening and conventional molecular-based therapies are inappropriate due to
poor preclinical testing and delayed recovery. Hence, modern nanotechnology utilizing nanopulsed
laser therapy and advanced nanoparticle insertion will be suitable for TBI's diagnostics
and treatment. In recent days, nanotechnology has an important role in TBI control and provides
a higher success rate than conventional therapies. This review highlights the pathophysiology of
TBI by comprising the drawbacks of conventional techniques and supports suitable modern alternates
for treating TBI.