Genetic Engineering
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May 21 | News
Tissue engineers can use mesenchymal stem cells derived from fat to make cartilage, bone, or more fat. The best cells to use are ones that are already likely to become the desired tissue. Brown University researchers have discovered that the mechanical properties of the stem cells can foretell what they will become, leading to a potential method of concentrating them for use in healing.
May 14 | News
A
research team at Rutgers University has been able to take a new
pharmacological approach to activate the immune cells to prevent cancer
growth through stimulation of the opiate receptors found on immune
cells.
May 3 | News
When
the DNA double helix breaks, the broken end goes searching for the
similar sequence and uses that as a template for repair. Using a new
dual-molecule technique, a research group in the Netherlands has
found out how the DNA molecule is able to perform this search and
recognition process in such an efficient way.
May 3 | News
Four
months ago the U.S. government sought to block publication of two
studies about how scientists created an easily spread form of bird flu.
Now a revised version of one paper is seeing the light of day with the
government's blessing. The second paper, which is more controversial
because it involves what appears to be a more dangerous virus, is
expected to be published later.
May 1 | News
The
major form of lactoferrin is an important iron-binding protein secreted
into human biofluids such as milk, blood, tears, and saliva. Because it
is responsible for most of the host-defense properties, researchers are
starting to use lactoferrin as a potential therapeutic protein.
Apr 19 | News
Researchers
in Germany have enhanced the capabilities of solid-state nanopores by
fitting them with cover plates made of DNA. These nanoscale cover
plates, with central apertures tailored to various functions, are formed
by so-called DNA origami—the art of programming strands of DNA to fold
into custom-designed structures with specified chemical properties.
Apr 19 | News
While
working with an enzyme found in bacteria that is crucial for capturing
solar energy, researchers in Michigan have found they can adjust the
time the battery-like enzyme can store energy. In nature, the enzyme
recovers from a charge-separated state in seconds, but changing the
enzyme’s shape has extended storage to several hours.
Apr 17 | News
Biotechnologists
have recently found a way to control a heat-loving microbe with a
temperature switch by inserting a gene from another organism. The
engineered microbe can be coaxed to use that gene to make a new product,
such as biofuel, by simply lowering the temperature.
Apr 16 | News
Scientists
in Sweden say they have developed a molecular catalyzer with the
ability to oxidize water to oxygen at speeds comparable to those in
nature's own photosynthesis. This finding would be a world record for
artificial photosynthesis.
Apr 16 | News
The
Texas Medical Board on Friday approved new rules on experimental stem
cell therapies such as the one Gov. Rick Perry underwent during back
surgery last year, despite objections they don't do enough to protect
patients and could led to an explosion of doctors promoting unproven,
expensive treatments.
