Nanomedicine, Volume I: Basic Capabilities
© 1999 Robert A. Freitas Jr. All Rights Reserved.
Robert A. Freitas Jr., Nanomedicine, Volume I: Basic Capabilities, Landes Bioscience, Georgetown, TX, 1999
18.104.22.168 Instantaneous Stationary Source in Flooded Tube
For a source at the end of a long water-filled tube with non-absorbent walls, cross-sectional area Atube, and length Xmax = (0.484) Qmessage / Atube cmin, then trec = (0.117 / D) (Qmessage / Atube cmin)2 and tfadeout = e trec ,703 using cmin from Eqn. 7.5. Hence a simple message (Imessage = 100 bits) passing through a tube of area Atube = 1 micron2 and length Xmax = 50 microns requires Qmessage = 130 message molecules and is received in trec ~ 60 sec ('I ~ 2 bits/sec).
Last updated on 18 February 2003