Frontpage » Tag » adhesion

News tagged with adhesion

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.

Technology / Engineering

created Feb 15, 2012 | popularity 5 / 5 (11) | comments 8 | with audio podcast

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

created Aug 23, 2011 | popularity 4.9 / 5 (14) | comments 9 | with audio podcast

Researchers electrify polymerization

Scientists led by Carnegie Mellon University chemist Krzysztof Matyjaszewski are using electricity from a battery to drive atom transfer radical polymerization (ATRP), a widely used method of creating industrial plastics. ...

Chemistry / Polymers

created Mar 31, 2011 | popularity 5 / 5 (1) | comments 1 | with audio podcast

Researchers identify a molecular switch that controls neuronal migration in the developing brain

St. Jude Children's Research Hospital investigators have identified key components of a signaling pathway that controls the departure of neurons from the brain niche where they form and allows these cells ...

Medicine & Health / Neuroscience

created Nov 25, 2010 | popularity 3.7 / 5 (3) | comments 0 | with audio podcast

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 ...

Nanotechnology / Nanophysics

created Sep 22, 2010 | popularity 5 / 5 (6) | comments 0 | with audio podcast

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.

Chemistry / Materials Science

created May 17, 2010 | popularity 4.6 / 5 (9) | comments 1 | with audio podcast

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 ...

Chemistry / Biochemistry

created Mar 01, 2010 | popularity 4.2 / 5 (5) | comments 0 | with audio podcast

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.

Chemistry / Materials Science

created Feb 01, 2010 | popularity 4.2 / 5 (26) | comments 3 | with audio podcast

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 ...

Chemistry / Biochemistry

created Mar 18, 2009 | popularity 4.8 / 5 (5) | comments 0

Protein helps immune cells to divide and conquer

Researchers at the University of California, San Diego School of Medicine have identified a key protein that is required for immune cells called B lymphocytes to divide and replicate themselves. The rapid generation of large ...

Medicine & Health / Medical research

created Mar 08, 2009 | popularity 5 / 5 (1) | comments 0

Physicists devise method for building artificial tissue

New York University physicists have developed a method that models biological cell-to-cell adhesion that could also have industrial applications.

Physics / General Physics

created 7 hours ago | popularity 5 / 5 (1) | comments 0 | with audio podcast

Biocompatible, waterproof, self-healing, and reversible: A new adhesive for medical applications?

(Phys.org) -- Mussels are true masters of adhesion. They bond solidly under water to nearly any type of surface. Researchers from Mainz have been inspired by mussel adhesive proteins to add another exciting ...

Chemistry / Materials Science

created Apr 13, 2012 | popularity 4.3 / 5 (4) | comments 0 | with audio podcast

Magnetic testing process helps ensure reliability of microelectronic devices

(Phys.org) -- Taking advantage of the force generated by magnetic repulsion, researchers have developed a new technique for measuring the adhesion strength between thin films of materials used in microelectronic ...

Physics / Condensed Matter

created Apr 12, 2012 | popularity 5 / 5 (2) | comments 0 | with audio podcast

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.

Chemistry / Materials Science

created Mar 14, 2012 | popularity 4.9 / 5 (8) | comments 1 | with audio podcast

Why spiders do not stick to their own sticky web sites

Researchers at the Smithsonian Tropical Research Institute and University of Costa Rica asked why spiders do not stick to their own sticky webs. Repeating old, widely quoted but poorly documented studies with ...

Biology / Plants & Animals

created Mar 01, 2012 | popularity 5 / 5 (4) | comments 3 | with audio podcast

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.