News tagged with gel
Oscillating gel acts like artificial skin, giving robots potential ability to 'feel'
Sooner than later, robots may have the ability to "feel." In a paper published online March 26 in Advanced Functional Materials, a team of researchers from the University of Pittsburgh and the Massachusetts Instit ...
Mar 29, 2012 |
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'Noodle gels' or 'spaghetti highways' could become tools of regenerative medicine
Medicine's recipe for keeping older people active and functioning in their homes and workplaces — and healing younger people injured in catastrophic accidents — may include "noodle gels" and other lab-made invisible ...
Mar 26, 2012 |
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New way to shape thin gel sheets proposed
Inspired by nature's ability to shape a petal, and building on simple techniques used in photolithography and printing, researchers at the University of Massachusetts Amherst have developed a new tool for ...
Mar 08, 2012 |
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Light but stable: novel cellulose-silica gel composite aerogels
(PhysOrg.com) -- Delicate and translucent as a puff of air, yet mechanically stable, flexible, and possessing amazing heat-insulation properties—these are the properties of a new aerogel made of cellulose ...
Jan 27, 2012 |
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How to count nanoparticles
Nanoparticles of a substance can be counted and the size distribution can be determined by dispersing the nanoparticles into a gas. But some nanoparticles tend to aggregate when the surrounding conditions change. Scientists ...
Nanotechnology / Bio & Medicine
Oct 11, 2011 |
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Polymer batteries for next-generation electronics
(PhysOrg.com) -- University of Leeds scientists have invented a new type of polymer gel that can be used to manufacture cheaper lithium batteries without compromising performance.
Sep 09, 2011 |
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Detecting molecules on skin
NPL is developing a state-of-the-art technique called 'ambient surface mass spectrometry' that can quickly detect small molecules on the surface of the skin and could benefit the $250 billion a year personal ...
Chemistry / Analytical Chemistry
Sep 07, 2011 |
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Archeologists discover Egyptian mummies styled with fatty hair gel
(PhysOrg.com) -- While it has long been known that the ancient Egyptians prettied up those deemed worthy of mummification, not so clear was what was done for the hair. Now, archeologist s working out of the KNH Centre for ...
Other Sciences / Archaeology & Fossils
Aug 23, 2011 |
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dAlH2Orean: An RC car that runs on aluminum soda can tabs (w/ video)
(PhysOrg.com) -- Aleix Lovet and Xavier Saluena, two researchers at the Polytechnic Institute of Catalonia, have made the world first RC car that runs entirely on soda cans. Well, to be more accurate, it runs ...
Technology / Energy & Green Tech
Apr 19, 2011 |
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Injectable gel could spell relief for arthritis sufferers
Some 25 million people in the United States alone suffer from rheumatoid arthritis or its cousin osteoarthritis, diseases characterized by often debilitating pain in the joints. Now researchers at Brigham and Women's Hospital ...
Apr 13, 2011 |
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Oscillating gels could find many uses (w/ Video)
Self-oscillating gels are materials that continuously change back and forth between different states — such as color or size — without provocation from external stimuli. These changes are caused ...
Mar 14, 2011 |
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Researchers reformulate tenofovir vaginal gel for rectal use
A change in the formulation of tenofovir gel, an anti-HIV gel developed for vaginal use, may make it safer to use in the rectum, suggests research presented today at the 18th Conference on Retroviruses and Opportunistic Infections ...
Medicine & Health / HIV & AIDS
Feb 28, 2011 |
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Tenofovir gel provides high level of protection against HIV in rectal tissue
A gel developed to protect against HIV during vaginal sex produced a strong antiviral effect when used in the rectum, according to an early-phase study presented today at the 18th Conference on Retroviruses and Opportunistic ...
Medicine & Health / HIV & AIDS
Feb 28, 2011 |
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Study comparing tenofovir gel and oral tablet finds gel provides more drug to tissue
In the first study to make head-to-head comparisons between tenofovir gel and oral tenofovir – two promising approaches for preventing HIV in women – researchers found that daily use of the vaginal gel achieved ...
Medicine & Health / HIV & AIDS
Feb 28, 2011 |
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C60 could form a new kind of gel
(PhysOrg.com) -- C60, the spherical carbon molecule also known as a buckminsterfullerene, has intrigued scientists for its unique properties and potential applications in nanotechnology and electronics. Now scient ...
Nanotechnology / Nanomaterials
Feb 17, 2011 |
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Gel
A gel (from the lat. gelu—freezing, cold, ice or gelatus—frozen, immobile) is a solid, jelly-like material that can have properties ranging from soft and weak to hard and tough. Gels are defined as a substantially dilute cross-linked system, which exhibits no flow when in the steady-state. By weight, gels are mostly liquid, yet they behave like solids due to a three-dimensional cross-linked network within the liquid. It is the crosslinks within the fluid that give a gel its structure (hardness) and contribute to stickiness (tack). In this way gels are a dispersion of molecules of a liquid within a solid in which the solid is the continuous phase and the liquid is the discontinuous phase.
For more information about Gel, read the full article at
Wikipedia.
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