News tagged with chemical signal

Diatom sex pheromone isolated and characterized

(Phys.org)—Diatoms (unicellular photosynthetic organisms) reproduce through asexual cell division alternating with short periods of sexual reproduction. A German and Belgian team has now determined that ...

Dec 14, 2012
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Plant organ development breakthrough

Plants grow upward from a tip of undifferentiated tissue called the shoot apical meristem. As the tip extends, stem cells at the center of the meristem divide and increase in numbers. But the cells on the periphery differentiate ...

Dec 03, 2012
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Nanoparticles detect biochemistry of inflammation

Inflammation is the hallmark of many human diseases, from infection to neurodegeneration. The chemical balance within a tissue is disturbed, resulting in the accumulation of reactive oxygen species (ROS) such as hydrogen ...

Sep 18, 2012
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The laser beam as a "3D painter"

(Phys.org)—There are many ways to create three dimensional objects on a micrometer scale. But how can the chemical properties of a material be tuned at micrometer  precision? Scientists at the Vienna University ...

Aug 27, 2012
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