New gel changes color on demand

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Photonic gel crystals demonstrate the tunability of materials made from alternating layers of hard and soft polymers. The soft polymers are easily swollen with liquid or vapor causing the materials to reflect different colors of light based on the wa ...
Photonic gel crystals demonstrate the 'tunability' of materials made from alternating layers of hard and soft polymers. The soft polymers are easily swollen with liquid or vapor causing the materials to reflect different colors of light based on the way their molecules are chemically 'tuned.' Photo / Donna Coveney

MIT researchers have created a new structured gel that can rapidly change color in response to a variety of stimuli, including temperature, pressure, salt concentration and humidity.


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All News summaries for October 21, 2007

Shielding for ambitious neutron experiment

2 hours ago | User rating: not rated yet
In science fiction stories it is either the inexhaustible energy source of the future or a superweapon of galactic magnitude: antimaterial. In fact, antimaterial can neither be found on Earth nor in space, is extremely complex ...

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Jul 23, 2008 | User rating: not rated yet
Researchers at the National Institute of Standards and Technology and three collaborating institutions are using a new laboratory model of the membrane surrounding neurons in the brain to study how a protein ...

Sandia to Demonstrate Hyperspectral Confocal Fluorescence Microscope

Jul 23, 2008 | User rating: not rated yet
Sandia National Laboratories will demonstrate a new hyperspectral confocal fluorescence microscope Friday, Aug. 8 from 9 a.m.-2 p.m. MDT in Bldg. 897 on Kirtland Air Force Base. This patent-protected and patent-pending technology ...

A 'New Dimension' at the LHC

Jul 22, 2008 | User rating: not rated yet
(PhysOrg.com) -- Later this year, the world's largest and most powerful particle accelerator, the Large Hadron Collider near Geneva, Switzerland, will begin operating, sending beams of protons hurling around circular tracks ...

Physicists shed light on key superconductivity riddle

Jul 21, 2008 | User rating: not rated yet
(PhysOrg.com) -- MIT physicists believe they have identified a mysterious state of matter that has been linked to the phenomenon of high-temperature superconductivity.
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