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Journal of Sensors
Volume 2009, Article ID 516850, 20 pages
http://dx.doi.org/10.1155/2009/516850
Review Article

A Complex of the Electromagnetic Biosensors with a Nanowired Pickup

Verchratskogo st. 15-1, Lviv 79010, Ukraine

Received 29 April 2009; Accepted 24 September 2009

Academic Editor: Joan Daniel Prades

Copyright © 2009 Rostyslav Sklyar. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The proposal to measure the biosignal values of different origins with advanced nanosensors of electromagnetic quantities is justified when allowing for superconducting abilities of the devices. They are composed in full-scale arrays. The said arrays can be both implantable into ionic channels of an organism and sheathed on the sources of the electromagnetic emanation. Nanowired head sensors function both in passive mode for picking up the biosignals and with additional excitation of a defined biomedium through the same head (in reverse). The designed variety of bio-nanosensors allow interfacing a variety of biosignals with the external systems, also with a possibility to control the exposure on an organism by artificially created signals. The calculated signals lies in the range of 5 to 5 V, ( 7 ÷ 0 ) 1 0 1 7 / c m 3 molecules or magnetic beads, 2 ÷ 1 0  pH, and stream speed 3 1 0 3 ÷ 1 0 2  m/s, flow 1 0 5 ÷ 1 0  m/s, and haemoglobin concentration of 1 0 3 0 ÷ 1 0 2 4 m o l e c / c m 3 . The sensitivity of this micro- or nanoscope can be estimated as 𝐻 𝐽 = 1 0 4 ( A m /Hz) with SNR equal to 1 0 4 . The sensitivity of an advanced first-order biogradiometer is equal to 3 fT/Hz. The smallest resolvable change in magnetic moment detected by this system in the band 10 Hz is 1 fJ/T.