Power sources of nanorobots

Nanorobots are mostly used in medical applications to cure critical problems of a patient. In this case, the nanorobots are sent inside a human body and made to swim in the blood using powering systems. As like navigation systems, the powering systems of nanorobots also use internal or external power sources.

Internal power source:

A nanorobot can be powered internally by the following techniques:

  • Implementation of onboard power source in the nanorobot
  • Human blood flow
  • Production of heat in the human body
  • Inclusion of electrodes in nanorobots and electrolytes in human blood will act as battery
  • Combination of chemical reactions in human blood and chemicals in nanorobots will lead to the formation of fuel source

An onboard battery can also be incorporated in the nanorobots for powering purposes. But, this power source will only deliver power supply based on the nanorobot’s size and weight. Moreover, a capacitor could be a handy device because it can provide slightly improved power to weight ratio than a battery.

External power source:

A nanorobot can be powered externally by tethering wires between the powering system and nanorobot. This technique requires strong wires, which can move easily inside the human body without causing any damages. The power can be provided either by optical or electrical systems. The optical systems will pass light via fiber optics, and then it will be converted into electrical power. There are also external powering systems without wires such as ultrasonic signals, microwaves, and magnetic fields.

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