Navigation Links
Nanometric butterfly wings created
Date:10/9/2009

A team of researchers from the State University of Pennsylvania (USA) and the Universidad Autnoma de Madrid (UAM) have developed a technique to replicate biological structures, such as butterfly wings, on a nano scale. The resulting biomaterial could be used to make optically active structures, such as optical diffusers for solar panels.

Insects' colours and their iridescence (the ability to change colours depending on the angle) or their ability to appear metallic are determined by tiny nano-sized photonic structures (1 nanometre=10-9 m) which can be found in their cuticle. Scientists have focused on these biostructures to develop devices with light emitting properties that they have just presented in the journal Bioinspiration & Biomimetics.

"This technique was developed at the Materials Research Institute of the State University of Pennsylvania and it enables replicas of biological structures to be made on a nanometric scale", Ral J. Martn-Palma, lecturer at the Department of Applied Physics of the UAM and co-author of the study explains to SINC.

The researchers have created "free-standing replicas of fragile, laminar, chitinous biotemplates", that is, copies of the nano structures of butterfly wings. The appearance of these appendices usually depends more on their periodical nanometric structure (which determines the "physical" colour) than on the pigments in the wings (which establish the "chemical" colour).

In order to create new biomaterial, the team used compounds based on Germanium, Selenium and Stibium (GeSeSb) and employed a technique called Conformal-Evaporated-Film-by-Rotation (CEFR), which combines thermal evaporation and substrate rotation in a low pressure chamber. They also used immersion in an aqueous orthophosphoric acid solution to dissolve the chitin (substance typically found in the exoskeleton of insects and other arthropods).

The methods used to date to replicate bio structures are very limited when it comes to obtaining effective copies on a nanometric scale and they often damage the original biostructure because they are used in corrosive atmospheres or at high temperatures. The new technique "totally" overcomes these problems, as it is employed at room temperature and does not require the use of toxic substances.

Martn-Palma points out that the structures resulting from replicating the biotemplate of butterfly wings could be used to make various optically active structures, such as optical diffusers or coverings that maximise solar cell light absorption, or other types of devices. "Furthermore, the technique can be used to replicate other biological structures, such as beetle shells or the compound eyes of flies, bees and wasps," the researcher says.

The compound eyes of certain insects are sound candidates for a large number of applications as they provide great angular vision. "The development of miniature cameras and optical sensors based on these organs would make it possible for them to be installed in small spaces in cars, mobile telephones and displays, apart from having uses in areas such as medicine (the development of endoscopes) and security (surveillance)", Martn-Palma says.


'/>"/>

Contact: SINC
info@plataformasinc.es
34-914-251-820
FECYT - Spanish Foundation for Science and Technology
Source:Eurekalert  

Related biology technology :

1. New Video Streaming Site Created by Ambrose Video Publishing
2. RNAi Helps Illuminate the Inner Workings of the Cell Cycle: Synthetic RNAissance™ Genes Created by DNA2.0 Enable Key Research
3. Histogen Aesthetics is Created to Address Growing Medical Aesthetics Market
4. New nanoscale process created by UCSB scientists will help computers run faster and more efficiently
5. Fate Therapeutics Created by Leading Stem Cell Scientists to Pursue New Approaches to Stem Cell Therapies
6. Millennium Biotechnologies, Inc. Launches SURGEX(TM) the First Scientifically Validated Sports Nutritional Product Created from the Medical Markets
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Nanometric butterfly wings created
(Date:7/20/2017)... ... , ... Dr. Asher Kimchi, Founder and Chairman of the International Academy ... the 22nd World Congress on Heart Disease held in Vancouver, BC, Canada. In addition ... Fellowship Awards. , Dr. Asher Kimchi, together with Co-Chairmen Dr. John A. Elefteriades and ...
(Date:7/20/2017)... , ... July 20, 2017 , ... VIC Technology ... joining the company’s board of directors. This addition continues to strengthen and diversify ... Calvin Goforth, CEO and Chairman. “He is a highly accomplished business executive with a ...
(Date:7/20/2017)... 20, 2017   KCNQ2 Cure Alliance  and ... company, today announced that they have completed the ... mutation implicated in KCNQ2 epileptic encephalopathy. They also ... second case involving an additional KCNQ2 genetic mutation. ... and Pairnomix entered into a collaboration to further ...
(Date:7/20/2017)... (PRWEB) , ... July 20, 2017 , ... ... solution to make clinical trial sites and study participants truly unified. TrialKit, a ... compliant (FDA 21 CFR Part 11) research studies entirely on mobile devices. With ...
Breaking Biology Technology:
(Date:6/30/2017)... , June 30, 2017 Today, ... developer and supplier of face and eye tracking ... Featured Product provider program. "Artificial ... innovative way to monitor a driver,s attentiveness levels ... from being able to detect fatigue and prevent ...
(Date:5/16/2017)... May 16, 2017  Veratad Technologies, LLC ( www.veratad.com ... age and identity verification solutions, announced today they will ... 2017, May 15 thru May 17, 2017, in ... International Trade Center. Identity impacts the ... in today,s quickly evolving digital world, defining identity is ...
(Date:4/19/2017)... ALBANY, New York , April 19, 2017 /PRNewswire/ ... highly competitive, as its vendor landscape is marked by ... in the market is however held by five major ... and Safran. Together these companies accounted for nearly 61% ... majority of the leading companies in the global military ...
Breaking Biology News(10 mins):