Environmental Engineering is looking at ways
to ensure that the manufacture of nanoscale
devices is environmentally safe.
Supercritical carbon dioxide (CO2) is
being used to make nanoporous films and
composites. Supercritical CO2—that is in
a fluid state while also being at or above
its critical temperature and pressure—has
properties between a gas and liquid, is inert
and is easily recyclable.
In addition, Muscat’s research team,
in partnership with the Department
of Biochemistry and the College of
Optical Sciences, has achieved success in
manufacturing nanometer-scale devices.
of unreliable components and their
characterization in terms of complexity and
ability to retain the stored information.
Improving stored data quality
Systems that store and transmit information
typically see the deterioration of that
information over time, which causes errors.
Systems need to be able to correct those errors.
Bane Vasic of the Department of Electrical
and Computer Engineering is using
nanotechnology to look at information
theory and error-correction coding theory.
The main challenge is that in nanoscale
systems, both the storage elements and
logic gate are faulty. The research involves
development of reliable memories made
Stealth devices
Metamaterials are man-made composite
materials that offer properties beyond those
available in naturally occurring materials.
Examples are coatings applied to aircraft that
“scatter” radar waves to avoid radar detection
and are used for such things as stealth fighters
and stealth bombers.
Researchers under the direction of Richard
Ziolkowskvi at the Department of Electrical
and Computer Engineering are investigating
using metamaterials for a variety of “radiating”
systems. Their research has used metamaterials
to build antennae that are much smaller than
normally needed and still get great reception.
This group also has designed silver- and
gold-covered nanospheres that could be used
for extremely thin color optical displays, like a
television set the thickness of a credit card. The
research has led to the development of tiny
lasers that can detect objects and movement as
well as individual atoms or molecules, and aid
the search for toxins, bacteria or viruses.
J. Brent Hiskey is associate dean for research and administration at The University of Arizona College of Engineering.
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