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My name is Reed Doucette and I am a junior ME
major with a business minor.
This summer I worked at Lawrence Livermore
National Laboratory in the Nanoscale Synthesis
and Characterization Lab. One of the main
projects that the NSCL is working on right now
is the development of the targets for the
National Ignition Facility laser, that will
hopefully create the first controlled fusion
reactions on Earth wthin the next 3 years.
Specifically, I was working on the processing
and testing of nanoporous gold foams. These
foams begin as a gold-silver alloy and through
a series of processes and treatments they are
turned into foams, that on the nanoscale look
like sponges. These foams have several
advantageous properties. For the most part,
the foams maintain the mechanical properties
of the bulk materials pretty well. The foams
also have a very high surface area. Also,
gold is an inert metal and it is
biocompatible.
Two main applications are being explored for
these gold foams. The first involves using
them as catalysts especially in catalytic
converters because they exhibit several
properties that make them more desirable than
the platinum that is currently used. The
second involves using them as a base onto
which very small medical devices could be
implanted into the body. The porous nature of
the foam encourages cell growth throughout the
foam and since they are gold, they will not
adversely impact that body in any way.
I heard about the internship through materials
sent out through the Viterbi Career Center.
Viterbi faculty and staff were very helpful
through the application process as far as
writing letters of recommendation and serving
as references.
--Reed Doucette
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