Instantaneous hemostasis in various tissues is studied from region of the brain. The overlying skull was removed to show the dorsal surface of the brain with the cerebral blood vessels. A probe is heading to vessels. one of the cerebral vessels, the blood vessel is cut and blood pours out from the ruptured vessel. Upon application of a drop of the nano hemostat solution (NHS) which assembles when in cintact with the cerebrospinal fluid over the injured site to bring about instant hemostasis. The lesion of the brain and the discontinuity of the severed vessel is visible under the haemostat.