Navigation Links
With their amazing necks, ants don't need 'high hopes' to do heavy lifting
Date:2/10/2014

centrifuge to measure the force necessary to deform the neck and eventually rupture the head from the body.

The centrifuge worked on the same principle as a common carnival ride called "the rotor." In the rotor, a circular room spins until centrifugal force pins people to the wall and the floor drops out. In the case of the ants, their heads were glued in place on the floor of the centrifuge, so that as it spun, the ants' bodies would be pulled outward until their necks ruptured.

The centrifuge spun up to hundreds of rotations per second, each increase in speed exerting more outward force on the ant. At forces corresponding to 350 times the ants' body weight, the neck joint began to stretch and the body lengthened. The ants' necks ruptured at forces of 3,400-5,000 times their average body weight.

Micro-CT scans revealed the soft tissue structure of the neck and its connection to the hard exoskeleton of the head and body. Electron microscopy images revealed that each part of the head-neck-chest joint was covered in a different texture, with structures that looked like bumps or hairs extending from different locations.

"Other insects have similar micro-scale structures, and we think that they might play some kind of mechanical role," Castro said. "They might regulate the way that the soft tissue and hard exoskeleton come together, to minimize stress and optimize mechanical function. They might create friction, or brace one moving part against the other."

Another key feature of the design seems to be the interface between the soft material of the neck and the hard material of the head. Such transitions usually create large stress concentrations, but ants have a graded and gradual transition between materials that gives enhanced performanceanother design feature that could prove useful in man-made designs.

"Now that we understand the limits of what this particular ant can withstand and how it behaves mechanically w
'/>"/>

Contact: Pam Frost Gorder
gorder.1@osu.edu
614-292-9475
Ohio State University
Source:Eurekalert  

Page: 1 2 3 4

Related biology news :

1. 2 servings of salmon a week is healthy for pregnant women and their babies
2. Study finds peoples niceness may reside in their genes
3. Lizard moms may prepare their babies for a stressful world
4. Deterring signals: Tobacco plants advertise their defensive readiness to attacking leafhoppers
5. Vampire jumping spiders identify victims by their antennae
6. New Tool Helps Drug Developers Optimize Their Research and Target Development for Better Results and a Stronger Competitive Edge
7. Parasitic plants steal genes from their hosts
8. Cougars are re-populating their historical range, new study confirms
9. Research: Many programs to help diabetics manage their health do work
10. Better looking birds have more help at home with their chicks
11. The old primates club: Even male monkeys ride their fathers coattails to success
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
With their amazing necks, ants don't need 'high hopes' to do heavy lifting
(Date:9/19/2014)... -- Nxt-ID, Inc. (Nasdaq: NXTD and NXTDW) ("Nxt-ID" ... m-commerce market, updates the "Wocket in Your Pocket" celebrity ad campaign, ... middleweight weight classes, Vinny Pazienza (PAZ). ... of Thrones actor Ciaran Hinds and Sons ... Katey Sagal have been cast in Bleed for This ...
(Date:9/18/2014)... PULLMAN, Wash. - Washington State University researchers have developed ... sediment to power waste cleanup in rural areas. ... lead to an inexpensive and quick way to clean ... treatment plants while reducing pollution. , Professor Haluk ... College of Engineering and Architecture discuss the system in ...
(Date:9/18/2014)... located deep in the primitive brainstem has revealed how ... Harvard School of Medicine and the University at Buffalo ... the second "sleep node" identified in the mammalian brain ... to produce deep sleep. , Published online in August ... fully half of all of the brain,s sleep-promoting activity ...
Breaking Biology News(10 mins):NXT-ID's Vinny Paz Celebrity Ad Wocket Update: Katey Sagal and Ciaran Hinds Attached to His Upcoming Movie 2NXT-ID's Vinny Paz Celebrity Ad Wocket Update: Katey Sagal and Ciaran Hinds Attached to His Upcoming Movie 3Researchers develop unique waste cleanup for rural areas 2No sedative necessary: Scientists discover new 'sleep node' in the brain 2
... not just be helping digest food but also could be ... other organs, like the liver, according to research published this ... offer new understanding of the symbiotic relationship between humans and ... impact overall health. "The gut microbiota enhances the host,s ...
... of Medicine researchers have identified two genes associated with ... effective treatments for excessive alcohol drinking. The scientists found ... and toll-like receptor 4 (TLR4), "caused profound reduction" of ... been bred and trained to drink excessively. The study ...
... America have been awarded Leopold Leadership Fellowships for ... Institute for the Environment, the Leopold Leadership Program ... make their knowledge accessible to decision makers. ... mid-career academic environmental researchers as fellows. They receive ...
Cached Biology News:Gut bacteria can control organ functions 2University of Maryland School of Medicine study identifies genes associated with binge drinking 2University of Maryland School of Medicine study identifies genes associated with binge drinking 3University of Maryland School of Medicine study identifies genes associated with binge drinking 420 researchers selected as 2011 Leopold Leadership Fellows 220 researchers selected as 2011 Leopold Leadership Fellows 320 researchers selected as 2011 Leopold Leadership Fellows 4
(Date:9/18/2014)... 18, 2014 About POCT ... outside a clinical laboratory. It helps in making ... treatments and medication. POCT is gaining popularity due ... diseases such as diabetes, heart disease, and obesity. ... are standardized to minimize errors during the diagnosis ...
(Date:9/18/2014)... , September 18, 2014 ... ( http://www.researchandmarkets.com/research/czvg3s/biocompatible ) has announced the ... - Global Strategic Business Report" ... http://photos.prnewswire.com/prnh/20130307/600769) ,This report analyzes the worldwide ... Million by the following Product Segments: ...
(Date:9/18/2014)... , Sept. 18, 2014 Research ... the "Global N-acetylcysteine Industry Report 2014" ... Global N-acetylcysteine Industry Report 2014 is a professional ... the global N-acetylcysteine industry. The report ... definitions, classifications, applications and industry chain structure. The ...
(Date:9/18/2014)... LOUIS , Sept. 18, 2014  U.S. biotech ... by signing an exclusive license for technology developed by ... control gene expression in plants, including for applications in ... The technology was developed under the ... officer at Kultevat and former president of the Danforth ...
Breaking Biology Technology:POCT Market in China 2014-2018 2Biocompatible Materials - Global Strategic Business Report 2014 2Biocompatible Materials - Global Strategic Business Report 2014 3Global N-acetylcysteine Industry Report 2014 2Kultevat obtains license of gene switch technology 2
... Sept. 13 Allos,Therapeutics, Inc. (Nasdaq: ALTH ... commercialization of small molecule therapeutics for,the treatment of ... and,CEO, will present a corporate overview at the ... The Company,s presentation will take place at ...
... a world leader in,the rapidly evolving field of cancer ... H. M. Lindenbergh as Chairman of its,Supervisory Board. ... board of ING,Group N.V.. Currently, Mr. Lindenbergh is chairman ... member of the Royal Numico, Petroplus,International and Gamma Holding. ...
... ADVENTRX Pharmaceuticals,Inc. (Amex: ANX ), ... commercializing proprietary product candidates for the treatment,of ... Evan M. Levine,ADVENTRX,s chief executive officer, is ... Annual Growth Conference on Wednesday,September 19th, 2007 ...
Cached Biology Technology:Allos Therapeutics to Present at the 2007 UBS Global Life Sciences Conference 2Agendia BV Appoints Mr. Hessel Lindenbergh as Chairman of its Supervisory Board 2ADVENTRX Pharmaceuticals to Present at the ThinkEquity Partners' Fifth Annual Growth Conference 2
... WesternBreeze Immunodetection Kits are designed ... immobilized on nitrocellulose or PVDF membranes. ... (except membranes and primary antibodies), the ... both optimizing your protocol and getting ...
... L1 Cell Adhesion Molecule ... Xq28, is involved in three distinct conditions: ... Sylvius); 2) MASA (mental retardation, aphasia, shuffling ... paraplegia). Immunogen: Homogenous ...
Immunogen: C terminus [VQLKRSKNDSKPYC] of cardiac elav-type RNA-binding protein (ETR-3) Storage: -20 C, Avoid Freeze/Thaw Cycles...
... Formulation: 50mM Tris-HCl, pH 7.5, ... PMSF, 1mM benzamidine, 0.1% 2-mercaptoethanol ... (Protein Phosphatase 2A1) partially purified ... precipitation, QSepharose,amino-hexyl agarose, Superdex 200, ...
Biology Products: