Many of the materials that would be needed for this technology to come
around have either not been invented or they haven’t been tested to interact
with one another.
The nanobots that are used must also have some sort of failsafe built into
them so the nanotechnology
must also be capable of responding to the human body through bio-receptors
so that it may be able to “read” the body so that it may respond
accordingly. That they may be shut down and collected if they do defect.
This would probably be done by means of a nanosensor, which would receive a
signal from an outside control. This however would require a
breakthrough in communication between the nanobots and the human users.
This leads to the next
breakthrough—Nanosensors. Nanosensors are needed to detect and
respond to chemicals in the humane body, while others need to be able to
respond to wireless communication for diagnostics and adjustments
<current: a Nitrogen monoxide sensor using Nano-Sensor Technology>