Gizmorama

March 15, 2010
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The epic history Spielberg and Hanks took their inspiration from.
The real life story of the Pacific. Victory at Sea.
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Good Morning,

Scientists make "leap toward" widely available stem cell
therapy. A process in which unlimited amounts of stem cells
could be produced has been created. Check out the first
article for more details on this very exciting and promising
method.

Until Next Time,
Erin

Questions? Comments? Email me at: mailto:gizmo@gophercentral.com
Email your comments=


P.S. You can discuss this issue or any other topic in the new
Gizmorama forum. Check it out here...
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Method found to grow unlimited stem cells

NEW YORK - U.S. scientists say they've devised a method that
uses blood vessel cells to grow unlimited amounts of adult
stem cells. In what's described as a leap toward making stem
cell therapy widely available, researchers at the Ansary Stem
Cell Institute at Weill Cornell Medical College say they've
discovered endothelial cells that line various body cavities
produce growth factors that can grow copious amounts of adult
stem cells within just a few weeks. The researchers said
until now, adult stem cell cultures would die within four or
five days despite any efforts to grow them. "This is ground-
breaking research with potential application for regeneration
of organs and inhibition of cancer cell growth," said Dr. -
Antonio Gotto Jr., dean of the Weill Cornell Medical College.
Professor Shahin Rafii, co-director of the stem cell insti-
tute, said the study will have a major impact on the treat-
ment of any blood-related disorder that requires a stem cell
transplant. "We are the first group to demonstrate that
endothelial cells elaborate a repertoire of stem-cell-active
growth factors that not only stimulate stem cell expansion,
but also orchestrate differentiation of these stem cells into
their mature progeny," added Dr. Jason Butler, a senior in-
vestigator at Weill Cornell Medical College and first author
of the study.

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New types of plastics are envisioned

SAN JOSE, Calif. - U.S. scientists say a multi-year study
involving polymers could lead to the development of new types
of biodegradable, biocompatible plastics. IBM and Stanford
University researchers said their findings might also lead
to a new recycling process that has the potential to signif-
icantly increase the ability to recycle and reuse common pet-
roleum and plant-based plastics. "We're exploring new methods
of applying technology and our expertise in materials science
to (create) a sustainable, environmentally sound future,"
said Josephine Cheng, vice president of IBM Research in
Almaden, Calif. "The development of new families of organic
catalysts brings more versatility to green chemistry and
opens the door for novel applications, such as making bio-
degradable plastics, improving the recycling process and drug
delivery." IBM said disposable plastic bottles are among the
most vexing environmental challenges, with an estimated 13
billion plastic bottles disposed of annually. Although plas-
tics are recyclable, the resulting materials are limited to
"second generation reuse" -- meaning the materials made from
recycled plastic bottles are dumped into landfills instead of
being capable of repeated recycling. The IBM-Stanford scien-
tists said their findings could lead to a new recycling pro-
cess that reverses the polymerization process to regenerate
monomers in their original state, reducing waste and pollu-
tion significantly. The research is reported in the journal
Macromolecules.


New heat-conducting material is developed

CAMBRIDGE, Mass. - A U.S. research team says it has dis-
covered a way of transforming polyethylene into a material
that conducts heat as well as most metals. Massachusetts
Institute of Technology scientists say most polymers are
very good insulators for both heat and electricity. But the
MIT team found a way to turn the most widely used polymer,
polyethylene, into a material that not only conducts heat,
but does so while remaining an electrical insulator. The
scientists said their new process causes the polymer to con-
duct heat very efficiently in just one direction, unlike
metals, which conduct equally well in all directions. That,
the researchers said, might make the new material especially
useful for applications where it is important to draw heat
from an object, such as a computer processor chip. They said
the key to the transformation was getting all the polymer
molecules to line up the same way, rather than forming a
chaotic tangled mass, as they normally do. The resulting
fiber was about 300 times more thermally conductive than
normal polyethylene along the direction of the individual
fibers. The research team, led by Professor Gang Chen, re-
ports its findings in the journal Nature Materials.

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Deep Space Network antenna repairs begin

PASADENA, Calif. - The U.S. space agency says major renova-
tion work has started at its Deep Space Network's "Mars
Antenna" in Goldstone, Calif. NASA said the work on its
historic 230-foot-wide antenna, which has received data and
sent commands to deep space missions for more than 40 years,
will involve replacing part of the hydrostatic bearing as-
sembly that enables the antenna to rotate horizontally.
Officials said the engineering plans call for lifting about
9 million pounds of instruments approximately 0.2 inches so
workers can replace the steel runner, walls and supporting
grout. The operation, which will cost about $1.25 million,
has a design life of 20 years and is expected to be completed
by November. "This antenna has been a workhorse for ? over
40 years," said Alaudin Bhanji, Deep Space Network project
manager at NASA's Jet Propulsion Laboratory, Pasadena, Calif.
"It has provided a critical lifeline to dozens of missions,
while enabling scientific results that have enriched the
hearts and minds of generations. We want it to continue doing
so." NASA said it built the Mars antenna when spacecraft
began venturing beyond Earth's orbit, requiring more powerful
communications tools. The Mars antenna was the first of the
giant antennas designed to receive weak signals and transmit
very strong ones far into space. More information about the
Deep Space Network is available at:

http://deepspace.jpl.nasa.gov/dsn/index.html.

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