Navigation Links
Even geckos can lose their grip
Date:7/10/2014

ions, so they applied to a thin film in contact with an uneven surface. So, the film only contacts the uppermost parts of the uneven surface. The researchers also chose to limit the calculations to the type of weak forces that exist between all atoms and molecules van der Waals forces.

"It's true, they are small, but they are always there and we know that they are extremely reliant on distance," says Lars Johansson.

This means that the force is much stronger where the film is very close to a single high point, than when it is quite close to a number of high points. Then, when the film detaches, it does this point by point. This is because both contact surfaces are moving vibrating. These are tiny movements, but at some stage the movements are in sync, so the surfaces actually lose contact. Then the van der Waals force is so small that the film releases.

"So in reality, we can detach a thin film from the substrate simply by waiting for the right moment. This doesn't require a great deal of force. The part of the film that remains on the substrate vibrates constantly, and the harder I pull on this part, the faster the film will detach. But how long it takes for the film to detach also depends on the structure of the substrate and the film's stiffness," says Stefan Lindstrm.

In practice this means that even a small force over a long period will cause the film, or for that matter the gecko's foot, to lose its grip. Which is fine for the gecko, who can scoot off, but maybe not so good for a fastening system. Still in the right application, this knowledge can be of great industrial benefit.


'/>"/>

Contact: Stefan Lindström
stefan.lindstrom@liu.se
46-013-281-127
Linkping University
Source:Eurekalert  

Page: 1 2

Related biology technology :

1. In new quantum-dot LED design, researchers turn troublesome molecules to their advantage
2. Clionsky Neuro Systems (CNS-Neuro) Announces Publication of Study Finding Elderly Patients Unable to Recognize Their Memory Loss
3. Nano-oils keep their cool
4. UK company to demonstrate their commercially effective graphene production process
5. JH Technologies Announces Launch of Their New Website
6. "Just Label It" condemns dangerous riders snuck into the Farm Bill by chemical companies working to keep Americans in the dark about their food
7. Oncobiologics, Inc. Announces a Collaboration Agreement with XOMA Corporation to Utilize XOMAs Fully Human Antibody Libraries for Their Discovery Platform
8. Former FDA Inspectors Train Medical Device, Pharmaceutical Companies How to Prepare for FDA Inspections of Their Quality Systems
9. Imprisoned molecules quantum rattle in their cages
10. FDA, NIH and Genzyme Reveal Their Strategies to Overcome Viral Contamination at the Pathogen Safety Summit
11. New England Cord Blood Bank chooses Sepax 2 from Biosafe as their Cord Blood Processing Platform
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Even geckos can lose their grip
(Date:10/22/2014)... October 22, 2014 Involution Studios ... release of a new infographic, Understanding Ebola . ... a beautifully designed, easy to follow informative tool for ... of outbreak, symptoms and prevention. , "As the news ... the 2014 Ebola outbreak represents not only a healthcare ...
(Date:10/22/2014)... October 22, 2014 Physicians Choice ... cardiovascular pharmacogenetics menu, which enables healthcare providers to ... With PCLS’s evidence-based results, healthcare providers are better ... their therapy, while minimizing risks for adverse drug ... according to the FDA [1] more than 2.2 ...
(Date:10/22/2014)... 22, 2014 Nuvilex, Inc. (OTCQB: NVLX) – ... people worldwide are living with diabetes, with  that number ... The global market for diabetes treatments is approximately $500 ... worldwide died from pancreatic cancer.  Pancreatic cancer is the ... in the United States , and ...
(Date:10/20/2014)... Oct. 20, 2014 Mapp Biopharmaceutical,s valiant ... antibody therapeutic to fight the Ebola outbreak will ... time-consuming the production of pharmaceuticals can be, according ... said that while some may be taken aback ... those with industry knowledge are well aware of ...
Breaking Biology Technology:Involution Studios' Ebola Infographic Provides Key Disease Information and Statistics at a Glance 2PCLS Announces Expansion of Cardiovascular Pharmacogenetic Testing Menu 2PCLS Announces Expansion of Cardiovascular Pharmacogenetic Testing Menu 3Nuvilex Brief Analyst Report: Thinking Outside the Box by BrokerBank Securities, Inc. 2Kalorama: ZMapp Highlights Need For Faster Biopharmaceutical Production 2Kalorama: ZMapp Highlights Need For Faster Biopharmaceutical Production 3
... 11 VIA Pharmaceuticals,(Nasdaq: VIAP ), a ... the treatment of cardiovascular disease, announced today that,Lawrence ... Stewart, senior,vice president and chief financial officer, will ... Company 28th Annual Health Care Conference on,Tuesday, March ...
... FRANCISCO, Calif., March 11 Sunesis,Pharmaceuticals, Inc. (Nasdaq: ... the discovery, development and commercialization of,novel small-molecule therapeutics, ... year ended December 31, 2007., Total revenue ... million, with a,net loss of $8.8 million. Total ...
... March 11 Pharmacopeia,(Nasdaq: PCOP ), an innovator ... today announced that Dr. Leslie J. Browne,President and Chief ... and Company 28th Annual Health Care Conference.,The conference will ... Boston Marriott,Copley Place, Boston, Massachusetts., Dr. Browne,s presentation ...
Cached Biology Technology:Sunesis Pharmaceuticals Reports Fourth Quarter and Full-Year 2007 Financial Results 2Sunesis Pharmaceuticals Reports Fourth Quarter and Full-Year 2007 Financial Results 3Sunesis Pharmaceuticals Reports Fourth Quarter and Full-Year 2007 Financial Results 4Sunesis Pharmaceuticals Reports Fourth Quarter and Full-Year 2007 Financial Results 5Sunesis Pharmaceuticals Reports Fourth Quarter and Full-Year 2007 Financial Results 6Sunesis Pharmaceuticals Reports Fourth Quarter and Full-Year 2007 Financial Results 7Sunesis Pharmaceuticals Reports Fourth Quarter and Full-Year 2007 Financial Results 8Sunesis Pharmaceuticals Reports Fourth Quarter and Full-Year 2007 Financial Results 9Sunesis Pharmaceuticals Reports Fourth Quarter and Full-Year 2007 Financial Results 10Pharmacopeia to Present at the Cowen and Company 28th Annual Health Care Conference 2Pharmacopeia to Present at the Cowen and Company 28th Annual Health Care Conference 3
(Date:10/18/2014)... a sample of patients with undiagnosed, suspected genetic conditions, ... with a higher molecular diagnostic yield than traditional molecular ... JAMA . The study is being released to coincide ... , Exome sequencing, which sequences the protein­coding region of ... material present in a cell or organism), has been ...
(Date:10/16/2014)... war on the human body. Battles are won, ... pancreatic cancer, this stalemate—known as tumor dormancy—can last ... a phenomena that is poorly understood. , ... of Salvatore Torquato, a Professor of Chemistry at ... tumor dormancy and the switch to a malignant ...
(Date:10/16/2014)... tract infections and worldwide claims the lives of ... Ghent University have succeeded in developing a promising ... , Xavier Saelens (VIB/UGent): "We discovered a ... the development of a novel approach to vaccination ... numerous small children and elderly people." , ...
Breaking Biology News(10 mins):Study examines type of exome sequencing and molecular diagnostic yield 2Study examines type of exome sequencing and molecular diagnostic yield 3Modeling tumor dormancy 2New perspectives for development of an RSV vaccine 2
... N.H. New research from Plymouth State University and ... bleeding horseshoe crabs for biomedical purposes causes short-term changes ... crabs, population decline in parts of the east coast. ... the blue blood from almost half a million living ...
... (Feb. 19, 2014) -- There are more than a trillion ... our brains. Each of these neurons contains millions of proteins ... form the complex networks of the brain still remains as ... For the first time, a group of scientists has been ...
... its food plants and parasitoids, has been going on for ... (ACG), a protected area of approximately 1200 km2 in ... of moths and butterflies are estimated to live in ACG. ... also numbering thousands of species. However, most of those wasps ...
Cached Biology News:Biomedical bleeding affects horseshoe crab behavior 2Biomedical bleeding affects horseshoe crab behavior 3Watching how the brain works 2Almost 200 new species of parasitoid wasps named after local parataxonomists in Costa Rica 2
... For the ultimate in utility and ... to meet the needs of the researcher. ... interior dimensions or as sheet material that ... enclosures. These isolators are autoclavable and non-cytotoxic ...
2,4-Dinitrophenyl hapten is conjugated to Human Serum Albumin (HSA) protein through lysine....
IC50: 3 ng/ml · Limit of detection: 0.5 ng/ml...
Antibodies were affinity purified using epitopes specific to PPP1CC immobilized on solid support....
Biology Products: