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:8/27/2015)... Aug. 27, 2015  Asterias Biotherapeutics, Inc. (NYSE MKT: ... of regenerative medicine, today announced that executives from the ... month of September.  , Pedro ... & Renshaw,s 17th Annual Global Investment Conference on Wednesday, ... St. Regis Hotel in New York City ...
(Date:8/27/2015)... ... 27, 2015 , ... METTLER TOLEDO's web-based EasyFinder™ ... choices to a manageable shortlist of bench and floor scales and terminals. Specifying ... best with the customer’s industry and application. , Side-by-side product comparisons and ...
(Date:8/26/2015)... WARREN, N.J. , Aug. 26, 2015  Roka ... company focused on providing advanced testing solutions for the ... Thomas, CEO will present at the Sidoti & Company ... The conference will be held at the New York ... the presentation will be available through the investor relations ...
(Date:8/26/2015)... JERUSALEM and BEIJING , August 26, ... Startup Scene with Impressive Acheivements  DiaCardio wins 1 st ...   The competition, led in Israel ... ‎, featured 21 startups from countries including the US, ... and Latin America .  ...
Breaking Biology Technology:Asterias Biotherapeutics to Present at Upcoming Investor Conferences 2METTLER TOLEDO Updates Online Scale Selection Tool 2Israeli Startup Takes First Place at Shengjing Global Innovation Awards 2015 2Israeli Startup Takes First Place at Shengjing Global Innovation Awards 2015 3Israeli Startup Takes First Place at Shengjing Global Innovation Awards 2015 4Israeli Startup Takes First Place at Shengjing Global Innovation Awards 2015 5Israeli Startup Takes First Place at Shengjing Global Innovation Awards 2015 6
... only Web-based solution for managing compliance and regulated content throughout ... , SAN DIEGO, June 22 Drug ... Virtify, Inc. , the market leader in enterprise ... upcoming release of its Virtx integrated software suite, an end-to-end, ...
... alternative to Singulair and Zicam - The ALCAT Test , ... FDA knocked the wind out of asthmatics by requesting the ... drug, to upgrade their warning against psychotic side effects. Further ... also last week announced warnings that the drug may cause ...
... , , SINGAPORE, June 22 Globally, the largest ... achieve a reduction in CO2 emissions by 8.0 percent between 2008 ... 5.75 percent bio-fuels of all transportation fuel by December 2010 and ... market, it is witnessing rapid growth in terms of both new ...
Cached Biology Technology:Virtify, Inc. Delivers Industry's First Enterprise Content Compliance Software Suite for Life Sciences Companies 2Virtify, Inc. Delivers Industry's First Enterprise Content Compliance Software Suite for Life Sciences Companies 3Virtify, Inc. Delivers Industry's First Enterprise Content Compliance Software Suite for Life Sciences Companies 4Virtify, Inc. Delivers Industry's First Enterprise Content Compliance Software Suite for Life Sciences Companies 5Knocking the Wind Out of Asthmatics: Help from Hippocrates 2Government Mandates Create Guaranteed Market for Bio-Fuel, Says Frost & Sullivan 2Government Mandates Create Guaranteed Market for Bio-Fuel, Says Frost & Sullivan 3Government Mandates Create Guaranteed Market for Bio-Fuel, Says Frost & Sullivan 4
(Date:8/4/2015)... Aug. 04, 2015 ... has announced the addition of the ... and Service), Sub-Segment (Computer Forensics, Network Forensics, ... Types, Service, Vertical and Region - Global ... offering. By Component (Hardware, Software, ...
(Date:8/3/2015)... JOSE, Calif. , Aug. 3, 2015 ... of human interface solutions, today announced that members of ... community at the Pacific Crest Global Technology Leadership Forum ... Time. The conference will be held at the Sonnenalp ... The presentation may include forward-looking information. An ...
(Date:7/31/2015)... 2015 BGI llevará a cabo la 10ª Conferencia ... 25 de octubre de 2015, en Shenzhen, ... décimo aniversario este año. Desde su inauguración en 2006, ... anuales más influyentes del mundo en los campos de ... más dinámicas, entusiastas y amenas. ICG-10 se ...
Breaking Biology News(10 mins):Digital Forensics Market - The Market Represents a Compound Annual Growth Rate (CAGR) of 11.3% From 2015 to 2020 2La 10ª Conferencia Internacional sobre Genómica (ICG-10) comienza en octubre 2La 10ª Conferencia Internacional sobre Genómica (ICG-10) comienza en octubre 3
... transcription 1) is a member of a family of ... particular genes are active. STAT1 transmits signals from interferons ... suffer from weak immune responses and are prone to ... their STAT1 gene. On the other hand, too much ...
... from Virginia Commonwealth University (VCU) Massey Cancer Center ... inflammation that could impact the treatment of diseases ... Their findings offer insight into the role that ... that functions as a transcriptional activator of a ...
... in the biblical stories of Abraham, Joseph, and Jacob. But ... Land of Israel until centuries after the Age of the ... this anachronism is direct proof that the text was compiled ... Ben-Yosef and Dr. Lidar Sapir-Hen of Tel Aviv University,s Department ...
Cached Biology News:A healthy balance 2Newly discovered signaling pathway could impact a variety of autoinflammatory diseases 2Finding Israel's first camels 2Finding Israel's first camels 3
... Detection Kit,provides a fast, convenient and ... pyrophosphate (PPi ) produced,by a number ... and,RNA polymerizations, cyclic AMP formation by ... activation of fatty acids to,form their ...
... high PCR specificity *High PCR specificity ... enzyme with unique QIAGEN PCR Buffer ... provided by the stringent built-in hot ... Master Mix and simple reaction setup ...
Request Info...
... AC is the easiest to program ... provided with liquid level sensors for ... integrated orbital shaker and automatic rinsing ... performance. The big bottle model is ...
Biology Products: