In future the gold nano-particles may be used to remotely activate brain cells and help to treat the neurological diseases. As per a report from The Guardian, Mo Costandi has given details of two proposed treatments which involves the use of gold nano-particles to transform the nerve cells. In one of the treatments a group of researchers at the University of Chicago, used gold nano rods which was attached to precise molecule which was embedded in the nerve cell membranes then infrared light was made to pass through these nano rods which warmed up the rods thus resulting in neurons to fire. The experiment was led by Francisco Benzanilla, by using dorsal root ganglion (DRG) neurons. DRG neurons cluster in the spinal cord and are the ones which broadcast the information of pain and touch. The second experiment was held at MIT wherein nano sized iron oxide spheres were used which heat up when a magnetic field passes over them. Here mice were used whose neurons were prepared to be heat sensitive, usually the brain cells do not need specific treatment to sense the heat however in these engineered mice a virus was injected which carried the gene that is needed to prepare the heat sensitivity in the brain, now the neurons incorporate the gene in their genome and prepare the sensor. These engineered mice were injected with the nano iron spheres and magnetic field passed over them results in warming of the nano spheres which in turn is sensed by the heat sensitive neurons in the mice and then these fire. These experiments are sort of remote brain control however researchers are working towards more innovative ways of using the nanotechnology into medicine in the near future. Benzilla’s group has plans to develop a modified method treat the macular degeneration using nano particle. Further Costandi also mentions that may be in future a person just needs to swallow a pill to release the “nanobots” into their bloodstream which would detect the exact disease in that body and give the correct report. So nanotechnology truly seems to be the answer to cure most of the deadly diseases like cancer.
