Acoustic Communication for Medical Nanorobots

TL;DR

This paper evaluates ultrasonic communication feasibility for in vivo nanorobots, identifying optimal frequencies and power sources to support high data rates without tissue damage, enabling biomedical coordination.

Contribution

It demonstrates the viability of ultrasonic communication for micron-sized nanorobots in vivo, analyzing optimal frequencies, power sources, and potential therapeutic applications.

Findings

Optimal frequencies between 10MHz and 300MHz for communication.

Ambient oxygen and glucose can support 10,000 bits/sec.

Directional beams can enhance data transmission rates.

Abstract

Communication among microscopic robots (nanorobots) can coordinate their activities for biomedical tasks. The feasibility of in vivo ultrasonic communication is evaluated for micron-size robots broadcasting into various types of tissues. Frequencies between 10MHz and 300MHz give the best tradeoff between efficient acoustic generation and attenuation for communication over distances of about 100 microns. Based on these results, we find power available from ambient oxygen and glucose in the bloodstream can readily support communication rates of about 10,000 bits/second between micron-sized robots. We discuss techniques, such as directional acoustic beams, that can increase this rate. The acoustic pressure fields enabling this communication are unlikely to damage nearby tissue, and short bursts at considerably higher power could be of therapeutic use.