Navigation Links
New measurement into biological polymer networks
Date:3/11/2011

The development of a new measurement technology under a research project funded by the Air Force Office of Scientific Research and the National Science Foundation is probing the structure of composite and biological materials.

"Our results have provided some of the first microscopic insights into a sixty year old puzzle about the way polymeric networks react to repeated shear strains," said Dr. Daniel Blair, Assistant Professor, and principal investigator of the Soft Matter Group in the Department of Physics at Georgetown University.

Blair, Professor Andreas Bausch and other researchers at Technische Universtaet Muenchen (Technical University of Munich) used the muscle filament known as actin to construct a unique polymer network. In their quest to understand more about bio-polymers, they developed the rheometer and confocal microscope system (measures the mechanical properties of materials), which provide a unique and unprecedented level of precision and sensitivity for investigating polymeric systems which were previously too small to visualize during mechanical stress experiments. The rheometer and confocal microscopes clearly visualized the fluorescently labeled actin network and they filmed the polymer filaments'movement in 3-D when mechanical stress was applied.

The rheometer and confocal microscopes, will help to lay the groundwork for future generations of materials that will possibly be used to create synthesized muscle tissue for the Air Force. These materials may even be ideally suited for powering micro-robots. The rheometer and confocal microscopes enabled the scientists to see the shearing process during the Mullins Effect when biological polymers become dramatically softer as seen in conventional polymers. Moreover, these materials also demonstrate dramatic strengthening in a way that is very different compared to conventional polymeric solids. The researchers' next steps will be to use the Mullins Effect as a mechanical standard for understanding the properties of composite and biological networks.

"We will use confocal-rheology as a benchmark system for generating new collaborations and expanding the technique to other AFOSR sponsored projects," said Blair. "For example, in collaboration with Dr. Fritz Vollrath of the Oxford Silk Group and Dr. David Kaplan from Tufts University, we are investigating how shear stress influences the formation of silk fibers."

Blair noted that the new technology is impacting a number of other AFOSR supported projects as a platform for investigating the strengthening of nano-composite networks such as carbon nanotubes and cellulose nanofibers embedded in conventional materials.

Blair predicts that there will be possible private sector uses for the new technology in the area of the green revolution and its inherent smart, soft biological materials.


'/>"/>

Contact: Maria Callier
maria.callier@afosr.af.mil
703-696-7308
Air Force Office of Scientific Research
Source:Eurekalert  

Related biology technology :

1. deCODE Finds Genetic Factors Impacting Key Clinical Measurements of Heart Activity and Disease Risk
2. Computerized IVF Follicle Measurements are Faster and Give High Success Rates, Says Research from Chicago Fertility Doctors Richard Sherbahn and Todd Deutch
3. Nano measurement in the third dimension
4. NISTs LIDAR may offer peerless precision in remote measurements
5. Atherotech Receives Patent for ApoB Measurement
6. GEMS Introduces Ultrasonic Continuous Liquid Level Sensor for Challenging Fluid Measurement
7. The Modern DeBakey VAD™ To Be Introduced For the First Time in the U.S. : HeartAssist 5™ Pediatric VAD Features Industry Exclusive Direct Blood Flow Measurement System
8. Scientists reveal how biological activity is regulated in fruit fly and roundworm genomes
9. Prometheus Laboratories and UCLA Sign Agreement to Validate Biological Markers of Mucosal Healing in IBD
10. Journal of Biological Chemistry names new editor-in-chief
11. Fitting a biological nanopore into a man-made one, new ways to analyze DNA
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
New measurement into biological polymer networks
(Date:2/8/2016)... ... February 08, 2016 , ... Information Management Services ( ... The upgrade represents a completely new technical foundation and is so significant it ... responsive design interface, significantly increased speed for search results, a streamlined layout and a ...
(Date:2/8/2016)... -- Diplomat Pharmacy, Inc. (NYSE: DPLO) announced today that its new website has gone live. On Thursday, ... mobile-friendly. Visit the new site: www.diplomat.is ... ... ... "The goal was to reimagine the website and create ...
(Date:2/5/2016)... , Feb. 5, 2016  In the pharmaceutical industry ... a host of launch activities including the identification and ... launch activity is especially high in the oncology therapeutic ... Best Practices and the Role of Medical Affairs in ... focused on oncology therapies find better ways to utilize ...
(Date:2/4/2016)... - New FDA action date of July ... action date of July 22, 2016   --> ... 22, 2016   - Lifitegrast has the ... for the treatment of signs and symptoms of dry eye disease ... to be the only product approved in the U.S. in the past decade indicated for ...
Breaking Biology Technology:
(Date:2/2/2016)... Feb. 2, 2016  BioMEMS devices deployed ... focused on medical screening and diagnostic applications, ... Wearable devices that facilitate and assure continuous ... movement are being bolstered through new opportunities ... signal acquisition coupled with wireless connectivity and ...
(Date:2/2/2016)... , Feb. 2, 2016 Technology Enhancements Accelerate ... an analysis of the digital and computed radiography markets ... , and Indonesia (TIM). ... and market size, as well as regional market drivers ... and discusses market penetration and market attractiveness, both for ...
(Date:2/1/2016)... Rising sales of consumer electronics ... intuitive gesture control market size ... consumer electronics coupled with new technological advancements to drive ... through 2020   --> ... advancements to drive global touchfree intuitive gesture control market ...
Breaking Biology News(10 mins):