💥😊Brain astrocyte electron microscopic view... 💥

Blood brain barrier is protective layer of cells that regulates entry of molecules in brain. Despite acting as protective mechanism, it also act as a barrier to delivering drug therapies to the brain. Astrocytes, specialised star shaped glial cells (non neuronal cell that support and protect), outnumber neurons over fivefold. These cells continuously tile entire central nervous system and exert many essential complex functions. Astrocytic tumors are commonest type of cancer of brain. Over past 40 year system to deliver drug to treat that cancers have emerged. Carriers that have been investigated have ranged in size from 10 to 1000 nanometers. One example of such carrier is a carbon nanotube,a hollow cylinder made from a continuous unbroken hexagonal mesh of carbon molecules,first explored by electron microscopist sumio Iijima in 1991. In this image astrocyte cell (coloured in brown), with diameter of 20 micrometers and captured in the process of taking up carbon nanotube (green colour). New approach to brain drug delivery will be key to unlocking the brain and tackling the neurological disorders that would otherwise remain incurable....