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Tag: "absorb" at biology news

New tool reveals secrets of migrating cells

...n half the energy needed to excite it, the dye can absorb them together and then fluoresce. The less energetic, long-wavelength photons will go deeper into the tissue, cause less damage and scatter less, Robey said, essentially illuminating slices through the tissue that can be sharply imaged and stacked to...

Bad aftertaste? New sensory on/off switch may 'cure' bane of artificial sweetener search

.... The new supermolecules have more units that will absorb light - providing more control over the range of l...w has more kinds of supramolecular assemblies that absorb therapeutic light and they are adding units to the structure. For instance, they added platinum, a m...

Virginia Tech group adds tools to DNA-targeted anti-cancer drugs

.... The new supermolecules have more units that will absorb light - providing more control over the range of l...w has more kinds of supramolecular assemblies that absorb therapeutic light and they are adding units to the structure. For instance, they added platinum, a m...

Atmosphere may cleanse itself better than previously thought

...relatively direct: either water droplets in clouds absorb them and rain them out, or sunlight strikes them a...serve a portion of the spectrum that the molecules absorb ?a portion that has been something of a blind spot for scientists, who often detect chemical reactio...

Scientists discover how plants disarm the toxic effects of excessive sunlight

...lls that grow by photosynthesis use chlorophyll to absorb solar energy. The following NASA satellite image maps chlorophyll concentrations on land as well as in oceans, lakes and seas. This image provides a snapshot of photosynthetic capacity and significant sources of singlet oxygen, a toxic byproduct of p...

Transgenic plants remove more selenium from polluted soil than wild plants, new tests show

...first field trial of plants genetically tweaked to absorb more contaminants, researchers found that the tran...to see if it's possible to increase its ability to absorb selenium and other pollutants ten-, one hundred-, or even one thousand- fold. This field test is the...

A frog's life is food for thought

...ation, the green-striped burrowing frog is able to absorb nutrients 40 percent more effectively after 3 months without food, than frogs that had eaten regularly. "They can take massive meals equivalent to 50 percent of their body mass and maximise their digestive capability from the outset," Ms Cramp said....

Surprising findings reported about iron overload

...ividuals who develop hemochromatosis/iron overload absorb an excessive amount of iron from food and supplements ingested. The abnormality affects many people worldwide, is prevalent in the South, and sometimes causes organ damage when severe iron deposition occurs due to inadequate control of iron absorptio...

Tiny scaffolding allows stem cells to become working fat cells

...to complete. At that point, the cells were able to absorb lipids a hallmark task of fat cells. Researchers were able to extract RNA from the cells, just as they can from naturally occurring fat cells, and from that proved that the cells expressed the normally expected array of genes, and subsequent protein...

Growth in the sea comes down to a struggle for iron

...nd he went further than that. Since growing plants absorb carbon dioxide, a powerful greenhouse gas, he suggested that natural increases in iron inputs to the oceans during the geologic past may have removed enough carbon from the atmosphere to affect global climate, perhaps even contributing to the onset o...

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