Tag: "substrate" at biology news
Now, self-healing materials can mimic human skin, healing again and again
...– which liquefies – is extracted, leaving behind a substrate
with a network of interlocking microchannels. In...gent. In the researchers’ tests, the coating and substrate
are bent until a crack forms in the coating. The crack propagates through the coating until it encou...
Technique monitors thousands of molecules simultaneously
... for covering the chip with a polymer, attaching a substrate
to the polymer right above the electrode, and then... to initiate a chemical reaction that modified the substrate
and converted it into a product. Putting a confining agent into the solution destroys the reagent ma...
The longest carbon nanotubes you've ever seen
...common in the semiconductor industry, with a novel substrate
and catalyst onto which the carbon attaches. Supported by the National Science Foundation (NSF) and the Office of Naval Research, University of Cincinnati (UC) professors Vesselin Shanov and Mark Schulz collaborated with post-doctoral researcher Y...
Blood sugar's manufacture limited by building blocks' supply
...in ingredients of proteins and the source of a key substrate
in blood sugar's production. "Gluconeogenesis i...thesis of glucose depends on the availability of a substrate
molecule that comes from an amino acid. The researchers found that mice with a targeted deletion ...
Biologically inspired sensors can augment sonar, vision system in submarines
...o each of the parts, which are then freed from the substrate
by an etchant. When a magnetic field is applied, the induced torque causes the pieces to rotate out of the plane on tiny hinges and lock into place. Each sensor is integrated with metal-oxide-superconductor circuitry for on-chip signal processing, ...
Developing uses for sugar-cane bagasse: Biotechnology applied to the paper industry
...s down the lignin in the fibres of bagasse used as substrate
in these trials, transforming this waste product, ...g from the bagasse (saccharose) or put in with the substrate
(maltose, yeast extracts and so on). It can therefore be recycled in the system or eliminated in a s...
Embryonic stem cells do better on bumpy nanoscale mattress
...onic stem (HES) cells do better when cultured on a substrate
deliberately printed with nanoscale grooves and ridges, according to researchers from the University of Wisconsin–Madison. The researchers used soft lithography to stamp polyurethane substrates with a nano- micron scale topography; a rugged cell...
Extraordinary life found around deep-sea gas seeps
...sophisticated sonar to map seafloor topography and substrate
and to detect plumes of methane-enriched water. The scientists then lowered a towed video and still camera system over each site to identify seep organisms and the extent of the seafloor they covered. With the live video feed, the scientists obser...
UNH researcher restoring oyster reefs to Great Bay
...eef restoration involves providing sufficient hard substrate
?typically oyster shells on which young oysters settle and grow ?and seeding it with disease-resistant young oysters. Natural oyster reefs are formed by live oysters atop mounds of empty shells; one initiative of Grizzle's lab is soliciting "recycled...
Scientists take 'snapshots' of enzyme action
...hat all the "players" -- the enzyme, cofactor, and substrate
-- came together at a particular time to perform t...zyme to the substrate. "Our finding shows that the substrate
and cofactor are binding to the enzyme alternately, not together," Swaminathan says. First, the cof...
Hopkins scientists show hallucinogen in mushrooms creates universal 'mystical' experience
... impulses in various regions of the brain-the very substrate
that drugs such as psilocybin act upon," Schuster says. "Understanding what mediates these effects is clearly within the realm of neuroscience and deserves investigation." "A vast gap exists between what we know of these drugs-mostly from descripti...
Study reveals details of mussels' tenacious bonds
...rganic metal oxide surface DOPA interacts with the substrate
by a coordinated noncovalent interaction, which is...strongly to many different materials. On neither substrate
could tyrosine alone mimic such a strong binding interaction, which highlights that the modification...
Sandia work launched on space shuttle shows live cells influence growth of nanostructures
...ers to deposition of the cell slurry on a spinning substrate
until dry. From their comfortable "home," the empowered cells can also direct their own landscaping. They can organize metallic nanocrystals added at the cell surface. These may enhance the sensitivity of Raman spectroscopy for monitoring the onset...
Neuronal cell cultures kept on the straight and narrow
...etry on cell development. The trick is to mask the substrate
with multiple alternating layers of positively and negatively charged polymers, building up a so-called polyelectrolyte multilayer (PEM). Properly selected, the PEM coating convinces the neuronal cells that they're in a good environment to attach, de...
New organic substrate
...gs from sawmills can be used to produce an organic substrate
for use in intensive crop growth in containers. Moreover, this substrate
has the advantage that it can be recycled and is more economic than other, imported ones such as pea...
Scientists force viruses to evolve as better delivery vehicles for gene therapy
...an enzyme - to make it more effective toward a new substrate
or better able to catalyze a reaction, for example - or to make antibodies better binders against specific targets," said Schaffer, who also is an affiliate of the UC Berkeley wing of the California Institute for Quantitative Biomedical Research (QB3...
New nano-canary in the nanotoxicology coalmine: The body itself
...hat live cells be grown on an infrared transparent substrate
giving us an opportunity to closely examine the biological effects in living cells," said Sundaram. Live cell Fourier transform infrared, FTIR, spectroscopy offers several attractive features for these investigations. These include the potential to...
How the brain learns to become addicted
...uced plasticity in the VTA "is likely an important substrate
of behaviors relevant to addiction, as we show that activation of [orexin] receptors in the VTA is necessary for the development of cocaine-mediated behavioral sensitization. Thus, orexin receptors may provide novel pharmacotherapeutic targets for mo...
Image of myosin-actin interaction revealed in cover story of Molecular Cell
...s were able to see myosin V moving along the actin substrate
in a "natural state." Previous 2D models have been based on staining or other treatment of the myosin that might alter the complex's natural mechanism of action. Myosins are a large family of motor proteins that interact with actin filaments for mot...
Wild Gorillas Handy with a Stick
...h, “apparently using it to test the water depth or substrate
stability.?She continued walking across the pool, branch in hand, “using it as a walking stick for postural support.?/p> In a separate incident, a second adult female named Efi (who belonged to a different group) emerged from the forest and broke...