Navigation Links
ASU scientists unravel the mysteries of spider silk
Date:1/28/2013

he time a postdoctoral researcher and currently a postdoctoral fellow at Stanford University, and ASU undergraduate students Paul Akhenblit and Keri McKiernan.

The Brillouin light scattering technique used an extremely low power laser, less than 3.5 milliwatts, which is significantly less than the average laser pointer. Recording what happened to this laser beam as it passed through the intact spider webs enabled the researchers to spatially map the elastic stiffnesses of each web without deforming or disrupting it. This non-invasive, non-contact measurement produced findings showing variations among discrete fibers, junctions and glue spots.

Four different types of spider's webs were studied. They included Nephila clavipes (pictured), A. aurantia ("gilded silver face"-common to the contiguous United States), L. Hesperus the western black widow and P. viridans the green lynx spider, the only spider included that does not build a web for catching prey but has major silk elastic properties similar to those of the other species studied.

The group also investigated one of the most studied aspects of orb-weaving dragline spider silk, namely supercontraction, a property unique to silk. Spider silk takes up water when exposed to high humidity. Absorbed water leads to shrinkage in an unrestrained fiber up to 50 percent shrinkage with 100 percent humidity in N. clavipes silk.

Their results are consistent with the hypothesis that supercontraction helps the spider tailor the properties of the silk during spinning. This type of behavior, specifically adjusting mechanical properties by simply adjusting water content, is inspirational from a bio-inspired mechanical structure perspective.

"This study is unique in that we can extract all the elastic properties of spider silk that cannot and have not been measured with conventional testing," concluded Yarger.


'/>"/>
Contact: Jenny Green
jenny.green@asu.edu
480-965-1430
Arizona State University
Source:Eurekalert  

Page: 1 2

Related biology technology :

1. Citizen Scientists Successfully Fund Groundbreaking Startup to Sequence their Microbiomes
2. Scientists design, control movements of molecular motor
3. Flexing fingers for micro-robotics: Berkeley Lab scientists create a powerful, microscale actuator
4. Spanish scientists design a revolutionary data storage device
5. USC scientists clone carbon nanotubes to unlock their potential for use in electronics
6. UC Santa Barbara scientists learn how to unlock the destiny of a cell: A gift for the tin man?
7. Nanotechnology helps scientists keep silver shiny
8. Scientists demonstrate high-efficiency quantum dot solar cells
9. Scientists target bacterial transfer of resistance genes
10. Scientists identify mammal model of bladder regeneration
11. Scientists build mechanically active DNA material
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
ASU scientists unravel the mysteries of spider silk
(Date:1/15/2014)... , Jan. 15, 2014  Bill Jacobs Automotive, a group of ... teaming up with the Heartland Blood Center and offering free ... The drive takes place Saturday, Jan. 18 at the Bill ... p.m. (Photo: http://photos.prnewswire.com/prnh/20140115/MN46637 )  The ...
(Date:1/15/2014)... FALLS, N.Y., Jan. 15, 2014   Niagara Thermal Products ... selected by Buffalo BioBlower Technologies LLC ("B3") as the ... Phase 2 award from the Army Corps of Engineers.  ... that kills all biological contaminants and destroys VOCs and ...
(Date:1/15/2014)... (PRWEB) January 15, 2014 Cynvenio, a ... management through the genomic analysis of tumor cells in ... Finder™, a web-based cancer decision support application powered by ... with Cynvenio’s ClearID™ genomic test, Therapy Finder will provide ...
(Date:1/15/2014)... Jan. 15, 2014 ­ RedBrick Health , a ... technology, today announces that EmblemHealth , the ... company, is now providing the RedBrick Compass health assessment, ... to all of its members. EmblemHealth is among the ...
Breaking Biology Technology:Join the Bill Jacobs Auto blood drive and receive a free oil change 2Niagara Thermal Products LLC Selected as Critical Supplier for Buffalo BioBlower Air Purification Systems 2Cynvenio Offers New Breast Cancer Therapy Finder Application for its ClearID Breast Cancer Genomic Test 2Cynvenio Offers New Breast Cancer Therapy Finder Application for its ClearID Breast Cancer Genomic Test 3EmblemHealth Selects RedBrick Health to Power its Next-Generation Health Engagement and Behavior Change System 2EmblemHealth Selects RedBrick Health to Power its Next-Generation Health Engagement and Behavior Change System 3
... not just because they sparkle. Engineers and physicists ... is as hard as an ice ball to the ... making it an ideal material or coating for seals, ... Carpick, associate professor in the Department of Mechanical Engineering ...
... Physicists at UC Riverside have made an accidental ... change how information in computers can be transported ... a property electrons possess that makes them behave ... the development of spin-based semiconductor technology such as ...
... Inc.,(Nasdaq: RDYN ) today announced that it has ... Ltd. for faropenem medoxomil (faropenem).,In conjunction with this decision, ... agreement with Asubio Pharma Co., Ltd. and Nippon,Soda Co. ... as a,result of the Company being unable to secure ...
Cached Biology Technology:University of Pennsylvania engineers reveal what makes diamonds slippery at the nanoscale 2Discovery by UC Riverside physicists could enable development of faster computers 2Discovery by UC Riverside physicists could enable development of faster computers 3Replidyne Terminates Faropenem Agreements 2Replidyne Terminates Faropenem Agreements 3
(Date:4/23/2014)... Alzheimer,s disease is the first cause of dementia and ... effective cure has yet been found. One of the ... the cellular mechanisms which cause alterations in nerve transmissions ... of the disease., Researchers from the Institute of Neuroscience ... cellular mechanism involved in memory consolidation and were able ...
(Date:4/23/2014)... University of Liverpool is leading a 2 million Food ... norovirus in food premises and industry workers. , ... In 2012 a batch of frozen strawberries infected ... in the authorities, understanding of which strains cause infection ... the bacteria. , Researchers will produce data ...
(Date:4/22/2014)... the University of Montana,s Wildlife Biology Program, co-wrote a research ... National Academy of Sciences on how streamwater chemistry varies ... Lowe and ... of Washington, the Cary Institute of Ecosystem Studies, the University ... examined 664 water samples collected every 10 meters along 32 ...
Breaking Biology News(10 mins):Loss of memory in Alzheimer's mice models reversed through gene therapy 2New research focuses on streamwater chemistry, landscape variation 2
... on a unique vertebrate called the sea lamprey shows that ... development. These genes are paradoxically lost all throughout the developing ... or PGCs. The PGCs can be thought of as embryonic ... generation of lampreys. Based on computational analysis, a significant number ...
... An inexpensive antifungal drug, thiabendazole, slows tumor growth and shows ... of Natural Sciences at The University of Texas at Austin ... frogs, mice and humans. Thiabendazole is an FDA-approved, generic ... 40 years as an antifungal. It is not currently used ...
... 2012) What comes naturally to most people to ... who have lost the full use of their limbs. New ... TIRR Memorial Hermann aims to help victims recover that ability ... from the National Institutes of Health (NIH) and the President,s ...
Cached Biology News:Research reveals unique solution to gene regulation 2Common antifungal drug decreases tumor growth and shows promise as cancer therapy 2Brain-wave-reading robot might help stroke patients 2Brain-wave-reading robot might help stroke patients 3
Rabbit polyclonal to HMGB1 (rating: ****) ( Abpromise for all tested applications). entrezGeneID: 3146 SwissProtID: P09429...
Pooled normal sreum with 0.1% sodium azide as preservative...
Mouse CXCR3 Allophycocyanin MAb (Clone 220803)...
Mouse P-Selectin/CD62P MAb (Clone 127933)...
Biology Products: