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