Navigation Links
Crab claws pack strengthening bromide-rich biomaterial
Date:2/25/2009

Next time you have an unlucky encounter with a crab's pinchers, consider that the claw tips may be reinforced with bromine-rich biomaterial 1.5 times harder than acrylic glass and extremely fracture resistant, says a University of Oregon scientist.

Residents on the U.S. West Coast may have had close encounters with the biomaterial -- detailed by a seven-member team in a paper published online in advance of regular publication in the Journal of Structural Biology. The translucent substance empowers the claw tips of the striped (or lined) shore crab (Pachygrapsus cassipes) as the pinchers pick and hold prey. It also is present on the walking legs of Dungeness crabs (Cancer magister), a dining delicacy in the Pacific Northwest.

"The types of crabs that use this trick for their claw tips rely on the tips fitting together like forceps in order to pick and hold bits of food, and fracture damage could make the tips useless," said the study's lead author Robert Schofield, a researcher in the UO physics department. "These crabs include many common crabs such as hermit crabs, which have one large claw for crushing, and a small claw tipped with this newly discovered biomaterial for finer work."

The claws of the Dungeness crab, he noted, are designed for crushing instead of fine manipulations, and are not tipped with this material. But their legs are, he said.

"The next time you are eating a Dungeness crab, notice that the sharp tip of the leg is a cap of translucent material that is very different from the rest of the crab," he said. "Notice how difficult it is to break the tip, even though it is very thin. This biomaterial can bend six times further before breaking than the material used in other regions. If the tip were made of the same material as the rest of the crab, it could never stay sharp and the crab would have difficulty clinging."

This bromine-rich material at the tips of crab claws and legs is a new member o
'/>"/>

Contact: Jim Barlow
jebarlow@uoregon.edu
541-346-3481
University of Oregon
Source:Eurekalert

Page: 1 2

Related biology news :

1. Origin of claws seen in 390-million-year-old fossil
2. When threatened, a few African frogs can morph toes into claws
3. ASM and FIND to partner on strengthening infectious disease diagnosis in developing nations
4. Strengthening the tumor-fighting ability of T cells
5. TECNALIA investigates advanced biomaterials to make more reliable and hardwearing medical implants
6. New 3-D test method for biomaterials flat out faster
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/14/2015)... , April 14, 2015 NXT-ID, Inc. (NASDAQ: ... authentication company focused on the growing mobile commerce market, ... for the 2015 New York Design Awards under the ... New York City Design Awards are part of a ... over 2,500 ratings from the marketplace, industry and judging ...
(Date:4/8/2015)... N.C. , April 8, 2015  Infinisource, ... solutions and services, and Morpho, a leading supplier ... partnership to produce the market,s most advanced biometrically-enabled ... Infinisource,s iSolved NXG time clock is setting a ... and labor data for the small and mid-size ...
(Date:4/2/2015)... , April 2, 2015 ... touch fingerprint sensor FPC1025 from the distributor World Peace ... commence during Q2 2015 although the major part of ... sensors will be used by smartphone manufacturers in ... MSEK is included in the communicated revenue guidance of ...
Breaking Biology News(10 mins):NXT-ID's Wocket Smart Wallet Nominated for 2015 New York Design Awards in 'Product Design- Technology' 2NXT-ID's Wocket Smart Wallet Nominated for 2015 New York Design Awards in 'Product Design- Technology' 3iSolved Time Clock Offers Unmatched Accuracy due to Morpho Biometrics 2iSolved Time Clock Offers Unmatched Accuracy due to Morpho Biometrics 3Fingerprint Cards Receives Touch Fingerprint Sensor Order of SEK 110 Million 2
... in space create in humans and animals so-called optical flow ... a forward movement, the objects flow by laterally, objects at ... change at all. At a higher level in the visual ... the visual information, so that animals can differentiate between their ...
... major differences between women with serious depression and healthy ... and emotions. , The study adds further evidence ... the brain -- specifically in the endogenous opioid system ... pain and stress-reduction system. The findings also show significant ...
... Professor Nigel Dimmock at the University of Warwick is ... This has been shown to protect animals against ... the full range of influenza A infections, including H5N1 ... The 'protecting virus' provides instant protection, and completely prevents ...
Cached Biology News:Two nerve cells in direct contact 2Two nerve cells in direct contact 3New brain-chemistry differences found in depressed women 2New brain-chemistry differences found in depressed women 3'Protecting virus' offers instant flu protection and converts flu infections into their own vaccines 2'Protecting virus' offers instant flu protection and converts flu infections into their own vaccines 3
(Date:5/1/2015)... 2015 According to a ... (Equipment, Consumables), by Type (Monoclonal, Polyclonal), by Technology ... Institutes) - Analysis & Global Forecast to 2019", ... Antibody Production Market for the forecast period of ... reach $2.572 Billion by 2019 from $1.425 Billion ...
(Date:4/30/2015)... Blythewood, South Carolina (PRWEB) May 01, 2015 ... steam system services, is extremely proud to announce that ... have been named as a winner of a Queen’s ... business success for the design and manufacture of a ... is the revolutionary alternative to traditional steam flow ...
(Date:4/30/2015)... 2015   Tamir Biotechnology , a leading developer ... its Ebola antiviral therapy program. Clinical ... currently being evaluated and considered by a number of ... During the first quarter of 2015, the company participated ... The Evaluation of Potential Treatments and Vaccines For Ebola ...
(Date:4/30/2015)... 2015 /PRNewswire/ - BioAmber Inc. (NYSE: BIOA ), ... it has commenced an underwritten public offering of its ... underwriters a 30-day option to purchase up to an ... offered in the public offering. The offering is subject ... as to whether or when the offering may be ...
Breaking Biology Technology:Antibody Production Market worth $2.572 Billion by 2019 2Antibody Production Market worth $2.572 Billion by 2019 3Antibody Production Market worth $2.572 Billion by 2019 4Spirax Sarco Receives a Queen’s Award for Innovation 2Spirax Sarco Receives a Queen’s Award for Innovation 3Tamir Biotechnology Provides Update on TMR004 Development Against Mutating Ebola 2Tamir Biotechnology Provides Update on TMR004 Development Against Mutating Ebola 3Tamir Biotechnology Provides Update on TMR004 Development Against Mutating Ebola 4BioAmber Inc. Announces Public Offering Of Common Stock 2BioAmber Inc. Announces Public Offering Of Common Stock 3
... 8 Northwest Biotherapeutics, Inc. (OTC Bulletin Board: NWBO; AIM: ... of a putative securities class action lawsuit, In re ... The Company has agreed to pay in settlement US$1 ... The settlement must be approved by the Court. ...
... AcelRx Pharmaceuticals, Inc.,announced today it has hired Dr. ... this new position, Dr. Skowronski will be responsible ... medical input,and review of clinical development strategy. ... Chief Medical Officer. , ...
... CHICAGO, Jan. 8 Allscripts announced today that,Tully-Wihr ... signed a,definitive agreement to resell the web-based Allscripts ... to 100 physicians. , ... Founded in 1906, Tully-Wihr has been building ...
Cached Biology Technology:Northwest Biotherapeutics Settles Class Action Complaint, and SEC Investigation Closed Without Action 2Northwest Biotherapeutics Settles Class Action Complaint, and SEC Investigation Closed Without Action 3Tully-Wihr Company Selects Web-Based Allscripts Electronic Health Record for 100 Northern California Physicians 2Tully-Wihr Company Selects Web-Based Allscripts Electronic Health Record for 100 Northern California Physicians 3Tully-Wihr Company Selects Web-Based Allscripts Electronic Health Record for 100 Northern California Physicians 4Tully-Wihr Company Selects Web-Based Allscripts Electronic Health Record for 100 Northern California Physicians 5
... Fluoroskan Ascent FL is ... and luminometric measurement technologies ... list of advanced features ... Luminoskan Ascent. Fluoroskan Ascent ...
... Thermo Forma's stainless ... a patented adjustable mechanism ... 6 different shaking angles, ... rack placement.This universal rack ...
... brings together two mature, well-understood technologies: ... surfaces. This combination produces a sensitive ... detection of molecular binding events without ... Protein-specific capture molecules are immobilized on ...
... NGGC3' 3'CGGN NNNNCCG5' Inactivation Conditions: Heat inactivation ... treatment followed by ethanol precipitation. Storage Conditions: ... EDTA, 1.0mM DTT, 0.01% BSA, 50% glycerol. ... Store at -20C. Unit Definition: One unit ...
Biology Products: