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:9/18/2014)... Sept. 18, 2014 Research and Markets ... Companion Diagnostics (Polymerase Chain Reaction, In-situ hybridization, Immunohistochemistry) Market ... their offering. The global companion diagnostics ... 22.7% from 2014 to 2019. Factors such as rising ... of companion diagnostics by the pharmaceutical industry, support from ...
(Date:9/18/2014)... 18, 2014  U.S. biotech company Kultevat ... license for technology developed by the Donald Danforth ... plants, including for applications in production of natural rubber ... technology was developed under the direction of Roger ... former president of the Danforth Plant Science Center, and ...
(Date:9/18/2014)... 18, 2014  Neogen Corporation (Nasdaq: NEOG ... strategic agreement with Merck Animal Health to market Neogen,s ... The Igenity Dairy Heifer Program consists of genomic tests ... genetic potential of replacement dairy heifers. The genomic tests ... and is an excellent tool in the decision-making process ...
(Date:9/18/2014)... 18 septembre 2014 Mapi, société créée ... 1974, a été depuis 40 ans l,un ... cliniques traditionnelles par des évaluations recentrées sur ... les impacts économiques des traitements. ... A cours d,une récente conférence téléphonique ...
Breaking Biology Technology:Global Companion Diagnostics (Polymerase Chain Reaction, In-situ hybridization, Immunohistochemistry) Market - Trends & Forecasts to 2019 2Global Companion Diagnostics (Polymerase Chain Reaction, In-situ hybridization, Immunohistochemistry) Market - Trends & Forecasts to 2019 3Kultevat obtains license of gene switch technology 2Merck Animal Health to market Neogen's dairy genomic program 21974 - 2014 - Mapi fĂȘte ses 40 ans 2
... Scimitar Equity, LLC issues a review ... entitled, "510k,Application Submitted for Xyfid(TM) and Priority ... Price Appreciation.", This review is available ... Pharmaceuticals is a New Jersey-based biotechnology company,dedicated ...
... 29 Zenobia Therapeutics, Inc.,(Zenobia) announced today ... award from The Michael J. Fox Foundation ... with potential to,fundamentally alter the course of ... Christopher Ross of Johns Hopkins University,Zenobia will ...
... July 29 ArunA Biomedical, Inc., the first,company ... and,services, announced today that William T. Sharp has ... to his ArunA leadership,responsibilities, Mr. Sharp has also ... succeeds ArunA founder Steven Stice, PhD, who will,remain ...
Cached Biology Technology:VioQuest Pharmaceuticals, Inc Valuation Upgrade Review Issued By Scimitar Equity, LLC 2Zenobia Therapeutics, Inc. Receives Michael J. Fox Foundation for Parkinson's Research Award for Work on PD-implicated Protein LRRK2 2ArunA Biomedical Names William T. Sharp President and Chief Executive Officer 2
(Date:9/18/2014)... researchers from McGill University and the Quebec government ... ,microbeads, Canadian Journal of Fisheries and Aquatic ... cosmetics, household cleansers, or industrial cleansers, to which ... their small size and buoyancy, they may readily ... a global contaminant in the world,s oceans, but ...
(Date:9/18/2014)... creatively manipulate spoken language is unique to humans. "The ... years of human evolution to make this possible are ... we now have," says Wolfgang Enard, Professor of Anthropology ... understand the molecular biological basis of language Enard has ... his latest study, undertaken in collaboration with scientists at ...
(Date:9/18/2014)... and ethnic groups describe losing eyesight as potentially ... more so than other conditions including: loss of ... 49% of non-Hispanic whites, 43% of Asians and ... ailment is the worst that could happen to ... AIDS/HIV. Hispanics and Asians ranked cancer first ...
Breaking Biology News(10 mins):Microplastic pollution discovered in St. Lawrence River sediments 2Language evolution: Quicker on the uptake 2Language evolution: Quicker on the uptake 3Americans rate losing eyesight as having greatest impact on their lives 2Americans rate losing eyesight as having greatest impact on their lives 3
... not the size of the eyespots on a male ... Instead, females are attracted to the "sparkle" created by ... at the center of eyespots, according to new research ... be published online June 29 in the Proceedings of ...
... between the two viruses could one day lead to ... researcher has discovered an unexpected link between the viruses ... an experimental strain of the human AIDS virus appear ... version of the disease as those immunized with the ...
... in a single gene can result in two ... to frequent or unusually severe infections, according to ... Nature Genetics. The discovery may lead to new ... A (IgA) deficiency and common variable immunodeficiency (CVID). ...
Cached Biology News:Female butterflies go for sparkle -- not size -- when choosing to mate 2Female butterflies go for sparkle -- not size -- when choosing to mate 3UF scientist finds unexpected link between cat and human AIDS viruses 2Agreement will speed research on microbicides for women 2Agreement will speed research on microbicides for women 3
Request Info...
R26.4C...
... x H): 17 3/4" x 8 ... slidesTime: Programmable 0 - 100 hoursControl: Programmable ... steps 40 user programmable protocols 3 operating ... Rapid temperature ramp-up from 37 - 95C ...
Anti-DAP-1, Rabbit Monoclonal Immunogen: KLH-conjugated synthetic peptide corresponding to the C-terminal region of human DAP-1. Molecular Weight: 11 kDa Quality Assurance: Routinely eval...
Biology Products: