Navigation Links
Bioinspired fibers change color when stretched
Date:1/28/2013

layer presents, which has evolved to serve a specific biological function, has inspired an extremely useful and interesting technological design."

Vukusic and his collaborators at Harvard studied the structural origin of the seed's vibrant color. They discovered that the upper cells in the seed's skin contain a curved, repeating pattern, which creates color through the interference of light waves. (A similar mechanism is responsible for the bright colors of soap bubbles.) The team's analysis revealed that multiple layers of cells in the seed coat are each made up of a cylindrically layered architecture with high regularity on the nano- scale.

The team replicated the key structural elements of the fruit to create flexible, stretchable and color-changing photonic fibers using an innovative roll-up mechanism perfected in the Harvard laboratories.

"For our artificial structure, we cut down the complexity of the fruit to just its key elements," explains Kolle. "We use very thin fibers and wrap a polymer bilayer around them. That gives us the refractive index contrast, the right number of layers, and the curved, cylindrical cross-section that we need to produce these vivid colors."

The researchers say that the process could be scaled up and developed to suit industrial production.

"Our fiber-rolling technique allows the use of a wide range of materials, especially elastic ones, with the color-tuning range exceeding by an order of magnitude anything that has been reported for thermally drawn fibers," says coauthor Joanna Aizenberg, Amy Smith Berylson Professor of Materials Science at Harvard SEAS, and Kolle's adviser. Aizenberg is also Director of the Kavli Institute for Bionano Science and Technology at Harvard and a Core Faculty Member at the Wyss Institute for Biologically Inspired Engineering at Harvard.

The fibers' superior mechanical properties, combined with their demonstrated color brilliance and tunability, ma
'/>"/>

Contact: Caroline Perry
cperry@seas.harvard.edu
617-496-1351
Harvard University
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Stem cells + nanofibers = Promising nerve research
2. MRI research sheds new light on nerve fibers in the brain
3. Composite nanofibers developed by Penn scientists next chapter in orthopaedic biomaterials
4. Study provides new insights into structure of heart muscle fibers
5. Inexpensive, abundant starch fibers could lead to ouchless bandages
6. New research underscores the health benefits of fibers, including bone health
7. Nanocrystal-coated fibers might reduce wasted energy
8. Killer silk: Making silk fibers that kill anthrax and other microbes in minutes
9. Pandemic controversies: The global response to pandemic influenza must change
10. Modifications of a nanoparticle can change chemical interactions with cell membranes
11. Parasites of Madagascars lemurs expanding with climate change
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Bioinspired fibers change color when stretched
(Date:11/4/2014)... November 4, 2014   ... growth   Fuel3D , a developer of ... funding round totaling $6.4 million (£4 million). This funding builds ... earlier this year and paves the way for the commercial ... The funding round was led by Chimera Partners and ...
(Date:11/3/2014)... , Nov. 3, 2014 Research and ... "Cell Therapy - Technologies, Markets and Companies" to ... cell therapy technologies and methods, which have already started to ... stem cell transplantation is replacing the old fashioned bone marrow ... Cell therapy is bound to become a part of medical ...
(Date:11/3/2014)... and preterm birth are linked to increased risk for ... the American College of Rheumatology (ACR) journal, Arthritis ... and pre-term babies were not at greater risk of ... According to the ACR, 27 million Americans over the ... of OA range from mild to severe and include ...
Breaking Biology News(10 mins):Fuel3D Secures $6.4 Million in Expansion Funding 2Fuel3D Secures $6.4 Million in Expansion Funding 3Global Cell Therapy - Technologies, Markets and Companies: 2014 Report 2Global Cell Therapy - Technologies, Markets and Companies: 2014 Report 3Preterm, low birth-weight babies may need new hips in adulthood 2
... fuel sources are lighting a fire under research to turn ... Bill 20, signed this week by Gov. Rick Perry, compliments ... used. The new law requires more renewable energy to be ... consumer energy needs and agriculture industry trends with the legislation ...
... some day be defeated by a single treatment, according ... University of Georgia's College of Veterinary Medicine. , Their ... and Marburg and includes investigators from Vanderbilt University Medical ... The study is being funded by a grant from ...
... Berkeley, has found that damage to a cell's DNA sets ... of a marker recognized by the body's immune system. , ... advanced online issue of Nature, shed light on a long-standing ... are able to attack tumors - can differentiate cells that ...
Cached Biology News:Researchers find ways to turn manure into power 2Researchers find ways to turn manure into power 3Researcher at UGA College of Veterinary Medicine identifies new way of combating viral diseases 2New study finds how cells with damaged DNA alert the immune system 2New study finds how cells with damaged DNA alert the immune system 3
(Date:11/22/2014)...   , ... zu KLOX    Mariano ... Officer bestellt    KLOX ist bestens ... zugelassenen Behandlungssystems zur Wundheilung zu beginnen    , ... sehr erfreut, die folgenden personellen Veränderungen anzukündigen: ...
(Date:11/21/2014)... (PRWEB) November 20, 2014 Offering a ... Sartorius Entris Balance promotion . The Sartorius Entris ... a durable, high accuracy, and easy-to-maintain balance entry level ... Germany. It was designed to help customer’s bridge the ... a balance that is very durable. Sartorius is the ...
(Date:11/21/2014)... 2014 The November 2014 issue of ... open access journal featuring the following articles:, ... preserve photoresponsiveness in the retina , DNA ... hybridization using chromogenic substrates in zebrafish , ... protein electrophoresis , Nuclear LC3-positive puncta in ...
(Date:11/21/2014)... Dallas, Texas (PRWEB) November 21, 2014 ... Industry” is a professional and in-depth research report ... information, including its definition, classification, application, and industry ... research covers the international market analysis, including China’s ... covering macroeconomic environment & economic situation analysis. The ...
Breaking Biology Technology:KLOX Technologies meldet Neubesetzung von Führungspositionen 2KLOX Technologies meldet Neubesetzung von Führungspositionen 3KLOX Technologies meldet Neubesetzung von Führungspositionen 4KLOX Technologies meldet Neubesetzung von Führungspositionen 5Pipette.com Announces an Extension on the Sartorius Entris Balance Promotion to the End of 2014 2BioTechniques: The International Journal of Life Science Methods Announces the Publication of the November 2014 Issue—Available in Print and Online 2BioTechniques: The International Journal of Life Science Methods Announces the Publication of the November 2014 Issue—Available in Print and Online 3International Transformer Industry - Analysis on Applications, Development & Forecasts Now Available at ReportsnReports.com 2International Transformer Industry - Analysis on Applications, Development & Forecasts Now Available at ReportsnReports.com 3
... Del., July 13 ParagonRx, a Delaware-based company which specializes in ... website - www.paragonrx.com - that includes a ... in complying with new FDA requirements to ensure the medical benefits ... , "REMS, or Risk Evaluation and ...
... , NEWARK, N.J., July 13 ... technology-based Life Science company announced today that at ATS Labs using ... Ygiene(TM) formula produced a 100% Total Kill of ... required AOAC Sporicidal Test utilizing spore impregnated then knotted suture loops ...
... , HOLMDEL, N.J., July 13 ... quality and compliance management software, today announced that ... products, has deployed Sparta,s TrackWise ((R)) Enterprise Quality ... across its manufacturing operations in Canada and the United ...
Cached Biology Technology:ParagonRx Creates New Website Featuring REMS Help Center for Pharma 2BioNeutral's Ygiene(TM) Hospital Grade Achieves World Class Independent Test Results in Killing Life Threatening Spores/Organisms 2BioNeutral's Ygiene(TM) Hospital Grade Achieves World Class Independent Test Results in Killing Life Threatening Spores/Organisms 3BioNeutral's Ygiene(TM) Hospital Grade Achieves World Class Independent Test Results in Killing Life Threatening Spores/Organisms 4Sparta Systems' TrackWise(R) Solution Delivers Workforce Training and Learning Initiatives for Cangene Corporation 2Sparta Systems' TrackWise(R) Solution Delivers Workforce Training and Learning Initiatives for Cangene Corporation 3Sparta Systems' TrackWise(R) Solution Delivers Workforce Training and Learning Initiatives for Cangene Corporation 4
... spatulas have been designed to save time ... those interested in eliminating the recycling and ... is individually packaged, RNase/DNase free, non-pyrogenic and ... new product number, created to easily match ...
... mechanical harvesting of cells • Blade design ... with the growth surface • Designed for ... Individually wrapped • Sterilized by gamma radiation ... is a new product number, created to ...
... kit for a single fragment based screening project: , ... , 96 shape-diverse mixtures of 4 (5 ... files for structure refinement , Individual compounds ... are at ca. 50 mM. Supplied in 5 96-well trays. ...
... interferons are cytopathic effect inhibition assays, also ... The neutralization assay measures the antibody's ability ... cytokine. Sample types include; tissue culture supernatents; ... assays, one unit is defined as the ...
Biology Products: