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Nanoscience
and nanotechnology remain among the hottest areas of research,
both nationally and at Argonne, where scientists are
improving existing technology and establishing new areas for future
exploration.
The promise
of nanoresearch to bring together the various scientific disciplines
is being fulfilled, and the laboratory
has been designated
home to one of the Department
of Energy’s five new Nanoscale
Science Research Centers. The final design work on Argonne’s
Center for Nanoscale Materials
(CNM) is underway, with equipment
acquisition and building construction planned to start by spring
2004.
“Argonne
is an ideal site for CNM,” said Eric Isaacs, the new
director of the center. “Our research at the nanoscale
is superb, and we are the only place in the country with hard
X-rays at the Advanced
Photon Source, neutrons at the Intense
Pulsed Neutron Source and electron
microscopy—three
powerful and complementary tools for nanoresearch.”
Funding
for the CNM building is being provided by the State
of Illinois,
with $36 million appropriated. The Department
of Energy’s
budget includes $36 million for CNM instrumentation, including
the pioneering nanoprobe beam line to be built on the Advanced
Photon Source. The CNM should be operating fully in 2007.
In the interim,
Argonne scientists continue investigating the nanoworld.
On the nanoscale,
where the basic unit of measurement, the nanometer, represents
one billionth of a meter, the
distinctions
among materials
science, chemistry, physics, biology and other disciplines
blur. Researchers in these disciplines are bringing their
knowledge together, exploring new frontiers by integrating
techniques
and
concepts
across traditional boundaries. This cross-cutting research
has substantial implications for most areas of technology.
Atoms
and molecules exhibit new properties when confined to the nanoscale,
and composites with new properties
and functionality
can be created when such confined objects are put near
each other.
“Most
importantly, the opportunity exists to create such miniature
systems from the bottom up, using the nanoscale principle
of self-organization,” said
Sam Bader, scientific director of the CNM. “Traditionally,
miniaturization is achieved, as in microchips, by
sculpting materials from the top down. That principle
has worked well for about half
a century, but we are reaching its limits. Bottom
up is the call of the future. It allows us to create
materials that are not just
smaller, cheaper and ‘greener,’ but that
possess new attributes, inspired by biological systems,
such as self-healing
and self-repairing materials, and systems that adapt
to changing environments.”
In addition
to developing CNM, Argonne has joined with the University
of Chicago to establish the Consortium
for Nanoscience
Research.
This connection brings together researchers from
the
two institutions to focus on interdisciplinary
research. “We’re
doing a lot of important innovative science, cross-cutting
disciplines,” said
George Crabtree, director of Argonne’s Materials
Science Division. “Consortium meetings are one
of the most important places we get together, and
people are really thinking out of the
box. Half of our work is out in what are, effectively,
new fields.”
See nano.anl.gov
For more information,
please contact Richard Greb.
Next: In
diamonds as in all things: size matters
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