Nanobots becoming a reality

MIT scientists have engineering a calcium sensor that they are using to deduce cell-to-cell signaling. I came across this technology while researching for our device design project. We needed a way to signal to our bot that it was inside the cell and we thought we could use a sort of calcium sensor. The one MIT made wasn't exactly what we needed, so we found another way to accomplish our goal, but this little sensor is a sign that nanotechnology is here and advancing quickly. The sensors used hand in hand with fMRI allow researchers to track the firing of neuronal activity with calcium signals. The sensors are coated with proteins that bind together in the presence of calcium, thus interpreting the flow of electrical activity in the brain. This is not only nanotechnology, but also a way to understand the functions and actions of the brain which will help with future research.

http://www.technologyreview.com/read_article.aspx?id=17607&ch=nanotech