News tagged with adhesion
New adhesive device could let humans walk on walls (w/ Video)
(PhysOrg.com) -- Could humans one day walk on walls, like Spider-Man? A palm-sized device invented at Cornell that uses water surface tension as an adhesive bond just might make it possible.
Feb 01, 2010 |
4.2 / 5 (26) |
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New adhesive for tape, label industry discovered
An incidental discovery in a wood products lab at Oregon State University has produced a new pressure-sensitive adhesive that may revolutionize the tape industry - an environmentally benign product that works very well and ...
Jul 06, 2010 |
4.9 / 5 (20) |
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Inspired by gecko feet, scientists invent super-adhesive material
For years, biologists have been amazed by the power of gecko feet, which let these 5-ounce lizards produce an adhesive force roughly equivalent to carrying nine pounds up a wall without slipping. Now, a team ...
Feb 16, 2012 |
4.6 / 5 (17) |
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Unexpected adhesion properties of graphene may lead to new nanotechnology devices
Graphene, considered the most exciting new material under study in the world of nanotechnology, just got even more interesting, according to a new study by a group of researchers at the University of Colorado ...
Nanotechnology / Nanomaterials
Aug 23, 2011 |
4.9 / 5 (14) |
9
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In new mass-production technique, robotic insects spring to life
(PhysOrg.com) -- A new technique inspired by elegant pop-up books and origami will soon allow clones of robotic insects to be mass-produced by the sheet.
Feb 15, 2012 |
5 / 5 (11) |
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Researchers discover spider webs' true 'sticking power' (w/ Video)
The secret of a brilliant evolutionary development, spider web glue, has been discovered by University of Akron researchers.
May 17, 2010 |
4.6 / 5 (9) |
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New gecko insights inspire even stronger adhesives
At first glance, a gecko skittering up a wall and a flat-screen television attached to the same wall have little in common.
Mar 14, 2012 |
4.9 / 5 (8) |
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Berkeley lab scientists reveal path to protein crystallization (w/ Video)
(PhysOrg.com) -- Growth of two-dimensional S-layer crystals on supported lipid bilayers observed in solution using in situ atomic force microscopy. This movie shows proteins sticking onto the supported lipid ...
Sep 22, 2010 |
5 / 5 (6) |
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MicroRNA suppresses prostate cancer stem cells and metastasis
A small slice of RNA inhibits prostate cancer metastasis by suppressing a surface protein commonly found on prostate cancer stem cells. A research team led by scientists at The University of Texas MD Anderson Cancer Center ...
Jan 16, 2011 |
4.1 / 5 (7) |
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Copying geckos’ toes
Geckos are famous for their ability to walk up walls and scamper across ceilings. The dry-adhesive surface of geckos’ toes has inspired many attempts to copy this ability in an artificial material. Isabel ...
Nanotechnology / Nanomaterials
Sep 05, 2011 |
5 / 5 (5) |
2
Shellfish and inkjet printers may hold key to faster healing from surgeries
Using the natural glue that marine mussels use to stick to rocks, and a variation on the inkjet printer, a team of researchers led by North Carolina State University has devised a new way of making medical adhesives that ...
Mar 18, 2009 |
4.8 / 5 (5) |
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Discovered after 40 years: Moon dust hazard influenced by Sun's elevation
In the 1960s and 1970s, the Apollo Moon Program struggled with a minuscule, yet formidable enemy: sticky lunar dust. Four decades later, a new study reveals that forces compelling lunar dust to cling to surfaces ...
Space & Earth / Earth Sciences
Apr 17, 2009 |
4 / 5 (6) |
5
British team builds model showing metamaterials could be used to create gecko toe like adhesion
(PhysOrg.com) -- Scientists have long been enamored by the gecko’s gravity defying ability to cling to walls and to let go at will, allowing it to walk around sideways, as have Spiderman enthusiasts. ...
Jan 27, 2012 |
4.6 / 5 (5) |
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Glue, fly, glue: Caddisflies' underwater silk adhesive might suture wounds
Like silkworm moths, butterflies and spiders, caddisfly larvae spin silk, but they do so underwater instead on dry land. Now, University of Utah researchers have discovered why the fly's silk is sticky when ...
Mar 01, 2010 |
4.2 / 5 (5) |
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Transparent 'DNA' adhesives help police nab thieves
(PhysOrg.com) -- Two British companies have worked out a way of helping dealers such as scrap and pawn dealers identify that objects brought to them have been stolen, and from whom, so they can then inform ...
Technology / Hi Tech & Innovation
Feb 11, 2011 |
3.5 / 5 (6) |
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Adhesion
Adhesion is any attraction process between dissimilar molecular species that can potentially bring them in close contact. By contrast, cohesion takes place between similar molecules.
Adhesion is the tendency of dissimilar particles and/or surfaces to cling to one another (cohesion refers to the tendency of similar or identical particles/surfaces to cling to one another). The forces that cause adhesion and cohesion can be divided into several types. The intermolecular forces responsible for the function of various kinds of stickers and sticky tape fall into the categories of chemical adhesion, dispersive adhesion, and diffusive adhesion. In addition to the cumulative magnitudes of these intermolecular forces, there are certain emergent mechanical effects that will also be discussed at the end of the article.
For more information about Adhesion, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
