X-Message-Number: 19916 From: Date: Mon, 26 Aug 2002 11:49:47 EDT Subject: Re: #19866 Nanogirl --part1_bd.26018e62.2a9ba81b_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Gina Miller said: > > 'Nanoantennas' could bring sensitive detectors, optical circuits. > Researchers have shown how tiny wires and metallic spheres might be > arranged > in various shapes to form "nanoantennas" that dramatically increase the > precision of medical diagnostic imaging and devices that detect chemical > and > biological warfare agents. Engineers from Purdue University have > demonstrated through mathematical simulations that nanometer-scale antennas > with certain geometric shapes should be able to make possible new sensors > capable of detecting a single molecule of a chemical or biological agent. > Such an innovation could result in detectors that are, in some cases, > millions of times more sensitive than current technology. (Purdue News > 8/21/02) > http://news.uns.purdue.edu/html4ever/020821.Shalaev.nanoantenna.html > > > Gina "Nanogirl" Miller > It is known that fractal paterns produce efficient antennas far smaller than the wavelength they can recive or radiate. This seems to be the ultimate step in this way. I have seen not long ago a paper in New Scientist about a 3D scanner using microwaves. May be putting end to end these two technologies, it could be possible to build a brain monitor: A system able to detect the electro-chemical activity in a brain and translate it into "thinks". Yvan Bozzonetti. --part1_bd.26018e62.2a9ba81b_boundary Content-Type: text/html; charset="US-ASCII" [ AUTOMATICALLY SKIPPING HTML ENCODING! ] Rate This Message: http://www.cryonet.org/cgi-bin/rate.cgi?msg=19916