Biomimétisme, Biomimicry, Bioinspired innovation
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NASA, coating technology, and the lotus leaf phenomenon - Surface Technology

NASA, coating technology, and the lotus leaf phenomenon - Surface Technology | Biomimétisme, Biomimicry, Bioinspired innovation | Scoop.it
Discover how NASA researchers are testing new lotus leaf-inspired coatings that improve aircraft efficiency and reduce drag - with exciting results.
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Strain-induced color changes in biomimetic materials | Chemical & Engineering News

Strain-induced color changes in biomimetic materials | Chemical & Engineering News | Biomimétisme, Biomimicry, Bioinspired innovation | Scoop.it
Taking a clue from jellyfish and squids that quickly alter their appearance via muscle-controlled morphology changes in their bodies’ surface structures, researchers have designed polymeric materials that change appearance reversibly in response to mechanically induced folds and deformations (Nat. Commun. 2016, DOI: 10.1038/ncomms11802). The animals exploit their color-changing abilities for camouflage and safety purposes. Scientists could use the new synthetic materials for those applications or as mechanical sensors, optical switches, and color-changing smart windows.
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Getting a grip on mussel adhesion - A*STAR Research

Getting a grip on mussel adhesion - A*STAR Research | Biomimétisme, Biomimicry, Bioinspired innovation | Scoop.it

The Asian green mussel (Perna viridis) anchors itself underwater by timed secretion of adhesive proteins from threadlike foot extensions, a team of researchers in Singapore finds1. Lab experiments and computer simulations reveal that an especially long sticky protein acts as a primer — first catching the surface and repelling water molecules to make way for two proteins that form the final adhesive pad. The discovery could lead to new submersible glues or improved paints to prevent biofouling on ship hulls and drilling platforms.

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Biomim'Expo 1-2 juillet 2016 : S’inspirer de la nature plutôt que la détruire

Biomim'Expo 1-2 juillet 2016 : S’inspirer de la nature plutôt que la détruire | Biomimétisme, Biomimicry, Bioinspired innovation | Scoop.it

Aujourd’hui, quelque 140 équipes travaillent en France sur des projets relevant du biomimétisme – matériaux, chimie, énergie, robotique… L’idée est donc pour le Ceebios de favoriser leur mise en réseau et, surtout, de permettre à ces recherches de rencontrer les entreprises.


Le biomimétisme – s’inspirer du vivant pour mettre au point des systèmes productifs et technologiques performants – est annoncé comme l’avenir, mais celui-ci n’arrive que trop lentement. Réunis les 1er et 2 juillet lors de Biomim’Expo, pour deux jours de conférence et d’ateliers au Centre européen d’excellence en biomimétisme de Senlis (Ceebios), dans l’Oise, les spécialistes de cette discipline ont une nouvelle fois plaidé pour son développement accéléré.

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Flower power: Photovoltaic cells replicate rose petals

Flower power: Photovoltaic cells replicate rose petals | Biomimétisme, Biomimicry, Bioinspired innovation | Scoop.it

With a surface resembling that of plants, solar cells improve light-harvesting and thus generate more power. Scientists of Karlsruhe Institute of Technology reproduced the epidermal cells of rose petals that have particularly good antireflection properties and integrated the transparent replicas into an organic solar cell. This resulted in a relative efficiency gain of twelve percent. An article on this subject has been published recently in Advanced Optical Materials ("Flower Power: Exploiting Plants’ Epidermal Structures for Enhanced Light Harvesting in Thin-Film Solar Cells"). Read more: Flower power: Photovoltaic cells replicate rose petals

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Novel 4D printing method blossoms from botanical inspiration : Wyss Institute at Harvard

Novel 4D printing method blossoms from botanical inspiration : Wyss Institute at Harvard | Biomimétisme, Biomimicry, Bioinspired innovation | Scoop.it

A team of scientists at the Wyss Institute for Biologically Inspired Engineering at Harvard University and the Harvard John A. Paulson School of Engineering and Applied Sciences has evolved their microscale 3D printing technology to the fourth dimension, time. Inspired by natural structures like plants, which respond and change their form over time according to environmental stimuli, the team has unveiled 4D-printed hydrogel composite structures that change shape upon immersion in water. "This work represents an elegant advance in programmable materials assembly, made possible by a multidisciplinary approach," said Jennifer Lewis, Sc.D., senior author on the new study. "We have now gone beyond integrating form and function to create transformable architectures."

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Actuators inspired by muscle

Actuators inspired by muscle | Biomimétisme, Biomimicry, Bioinspired innovation | Scoop.it
To make robots more cooperative and have them perform tasks in close proximity to humans, they must be softer and safer. A new actuator developed by a team led by George Whitesides, Ph.D. - who is a Core Faculty member a
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Biomimétisme : deux robots s’entraident pour surmonter des obstacles

Biomimétisme : deux robots s’entraident pour surmonter des obstacles | Biomimétisme, Biomimicry, Bioinspired innovation | Scoop.it
Des chercheurs de l'Université de Californie se sont inspirés du comportement collaboratif des insectes sociaux pour mettre au point des prototypes de robots capables de s'épauler pour surmonter un obstacle. Selon eux, cette approche pourrait être particulièrement utile pour des opérations de secours ou de cartographie après une catastrophe naturelle.
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Butterfly Flaps Its Wings, Could Spark Solar Energy Progress

Butterfly Flaps Its Wings, Could Spark Solar Energy Progress | Biomimétisme, Biomimicry, Bioinspired innovation | Scoop.it

From the wonderful world of biomimicry comes a solar energy breakthrough based on the posture at rest of a small butterfly called the Cabbage White. Who knew that voguing is still a thing? Apparently, this stylin’ butterfly forms a uniquely angled “V” with its wings, which according to new research from the UK’s University of Exeter indicates a new pathway for developing lighter, more efficient solar energy harvesting systems.Here's a new twist on the "butterfly effect" leading to more lightweight, compact concentrated systems for solar energy harvesting -- instead of hurricanes.

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Des skis inspirés des écailles de tortue

Des skis inspirés des écailles de tortue | Biomimétisme, Biomimicry, Bioinspired innovation | Scoop.it
Quels skis faut-il adopter pour dévaler les pentes avec un maximum de plaisir ? Idéalement, un ski devrait pouvoir tenir de fortes pressions dans les virages, mais aussi offrir une grande maniabilité. Or ces caractéristiques sont propres à deux types de skis différents: rigides ou souples, eux-mêmes destinés à deux types de skieurs: experts ou intermédiaires. Une nouvelle gamme de skis inspirés des écailles de tortue propose une solution deux en un, qui réunit les deux caractéristiques à la fois. Les nouveaux skis se rigidifient dans les virages, pour améliorer l'accroche sur la neige, mais se montrent en même temps très dociles en entrée et en sortie de virage. Baptisée «turtle shell», cette technologie est le fruit d’une collaboration entre l’EPFL, l’Institut pour l’étude de la neige et des avalanches de Davos (SLF) et la marque suisse de skis Stöckli.
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Des robots miniatures, inspirés des fourmis, remorquent une voiture de près de 2 tonnes

Des robots miniatures, inspirés des fourmis, remorquent une voiture de près de 2 tonnes | Biomimétisme, Biomimicry, Bioinspired innovation | Scoop.it
Des chercheurs de l’Université de Stanford ont publié une nouvelle vidéo dans laquelle six robots, de 17 grammes chacun, tirent une voiture de 1 800 kg. C’est comme si six humains tractaient le poids équivalent à une Tour Eiffel et trois statues de la Liberté. Les chercheurs du laboratoire de biomimétisme et de manipulation agile (BDML) de l’Université de Stanford n'en finissent pas d'étudier la nature. Après s’être inspirés des propriétés des geckos, ces lézards connus pour leur étonnante capacité d'adhésion aux surfaces verticales, pour créer des robots miniatures capables de tirer 2 000 fois leur poids, ils se sont intéressés aux capacités des fourmis à travailler ensemble pour tracter de grosses masses.
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Beetle bumps inspire bigger and faster water droplets - BBC News

Beetle bumps inspire bigger and faster water droplets - BBC News | Biomimétisme, Biomimicry, Bioinspired innovation | Scoop.it
Scientists have drawn inspiration from the bumpy shells of Namib desert beetles to improve the collection and transport of water droplets.
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Moth Eyes Inspire Graphene Based Smart Tech - GotScience.org

Moth Eyes Inspire Graphene Based Smart Tech - GotScience.org | Biomimétisme, Biomimicry, Bioinspired innovation | Scoop.it

Look into the eyes of moths and see the future. The future of smart gadgets, that is. Moths’ eyes are the latest inspiration for thin solar material. Researchers from the University of Surrey’s Advanced Technology Institute say that new, ultra-thin, patterned graphene sheets will be essential in designing “smart wallpaper” and other future technologies.

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Sound-proof metamaterial inspired by spider webs

Sound-proof metamaterial inspired by spider webs | Biomimétisme, Biomimicry, Bioinspired innovation | Scoop.it

Spider silk is well-known for its unusual combination of being both lightweight and extremely strong—in some cases, stronger than steel. Due to these properties, researchers have been developing spider-silk-inspired materials for potential applications such as durable yet lightweight clothing, bullet-proof vests, and parachutes. But so far, the acoustic properties of spider webs have not yet been explored. Now in a new study, a team of researchers from Italy, France and the UK has designed an acoustic metamaterial (which is a material made of periodically repeating structures) influenced by the intricate spider web architecture of the golden silk orb-weaver, also called the Nephila spider. Read more at: http://phys.org/news/2016-09-sound-proof-metamaterial-spider-webs.html#jCp

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KARLSRUHE INSTITUTE OF TECHNOLOGY - PI 2016 - Nanofur for Oil Spill Cleanup

KARLSRUHE INSTITUTE OF TECHNOLOGY - PI 2016 - Nanofur for Oil Spill Cleanup | Biomimétisme, Biomimicry, Bioinspired innovation | Scoop.it

Some water ferns can absorb large volumes of oil within a short time, because their leaves are strongly water-repellent and, at the same time, highly oil-absorbing. Researchers of KIT, together with colleagues of Bonn University, have found that the oil-binding capacity of the water plant results from the hairy microstructure of its leaves. It is now used as a model to further develop the new Nanofur material for the environmentally friendly cleanup of oil spills. (DOI: 10.1088/1748-3190/11/5/056003)

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Biomimétisme : un mini-robot inspiré de la raie et du rat

Biomimétisme : un mini-robot inspiré de la raie et du rat | Biomimétisme, Biomimicry, Bioinspired innovation | Scoop.it

Des chercheurs de l'Université de Harvard ont conçu une raie-manta artificielle qui fonctionne grâce à des muscles inspirés du rat.

Pour concevoir un nouveau système particulièrement adapté aux milieux marins, les chercheurs du laboratoire de bio-ingéniérie de Harvard se sont donc inspirés d’un animal réputé pour l’originalité de mode de locomotion : la raie. Ils ne sont pas les seuls à avoir eu cette brillante idée puisque en 2013, le département de mécatroniques du MIT testait déjà un prototype de robot. “Ce que nous faisons, c’est d’utiliser les outils de la robotique pour comprendre le cœur” a indiqué Kit Parker. Car pour concevoir ce petit être artificiel, ce physiologiste cardiaque s’est inspiré du fonctionnement musculaire du rat. Il espère d’ailleurs à terme réutiliser les techniques développées pour ce modèle et les appliquer sur des cœurs artificiels humains.

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Saving precious water with nanoscale ingenuity

Saving precious water with nanoscale ingenuity | Biomimétisme, Biomimicry, Bioinspired innovation | Scoop.it
(Nanowerk News) Managing scarce water resources is problematic for many Middle East countries, and forecasts predict a more straitened situation ahead. Desalination plants are one way to manage water shortages, as more than two-thirds of the world’s desalination capacity is in this region, but processing seawater has enormous energy and environmental costs. Other approaches need to be developed to achieve sustainable growth.
Over the past seven years, Peng Wang and colleagues from the King Abdullah University of Science and Technology (KAUST) Biological and Environmental Science and Engineering Division, Saudi Arabia, have been looking for answers to these grand challenges by turning to very small science. The team specializes in producing materials and surfaces that purify, distill and catch water molecules with remarkable efficiency thanks to nanoscale techniques, many inspired by ingenious biological tricks.
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Natural photosynthesis with artificial molecules

Chemists from the Universities of Basel and Zurich in Switzerland have come one step closer to generating energy from sunlight: for the first time, they were able to reproduce one of the crucial phases of natural photosynthesis with artificial molecules. Their results have been published by the journal Angewandte Chemie ("Light-Driven Electron Accumulation in a Molecular Pentad").
Green plants are able to temporarily store electric charges after the absorption of sunlight by using a so-called molecular charge accumulator. The two research teams were able to observe this process in artificial molecules that they created specifically for this experiment.
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Clubbing together shrimp inspired materials

Clubbing together shrimp inspired materials | Biomimétisme, Biomimicry, Bioinspired innovation | Scoop.it
The mantis shrimp is a small, multi-coloured marine crustacean, with a number sporting fist-like appendage called a dactyl club. This particular variety of mantis shrimp is known as a smasher, a
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Biomimétisme : Un robot tisse une somptueuse canopée au musée Victoria & Albert | Humanoides.fr

Biomimétisme : Un robot tisse une somptueuse canopée au musée Victoria & Albert | Humanoides.fr | Biomimétisme, Biomimicry, Bioinspired innovation | Scoop.it
L’idée étant de s’inspirer des structures en fibres de la nature pour concevoir des structures artificielles à la fois robustes et légères. La canopée n’est ainsi constituée que de deux matériaux, celui qui habite la toiture et celui que l’on trouve dans la structure. Les deux variantes sont toutes deux constituées de fibres de verres transparentes et de fibres de carbone. Exit les moules et autres processus de fabrication complexes. Ici, c’est le robot qui s’est chargé du tissage, réduisant drastiquement les pertes de matériaux. Pour concevoir chaque cellule de la canopée, le robot tisse les fibres de verres sur un cadre fait de fibres de carbone. Le processus étant entièrement numérisé, il est très facile pour les ingénieurs de varier la forme, la densité et l’orientation des cellules selon leur bon vouloir et donc d’adapter la structure générale au fil du temps et de l’espace. Avec ce matériau composite, la structure ne pèse que 9 kg au m².
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Biomimétisme : de minuscules robots-criquets au secours des personnes - H+ MAGAZINE

Biomimétisme : de minuscules robots-criquets au secours des personnes - H+ MAGAZINE | Biomimétisme, Biomimicry, Bioinspired innovation | Scoop.it
Une équipe de chercheurs de l’Université de Tel Aviv travaille sur des robots-criquet pour servir dans des opérations de secourisme en situations de catastrophes. Pourquoi le criquet ?
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Bat biosonar biomimicry for improved sonar technology | RobAid

Bat biosonar biomimicry for improved sonar technology | RobAid | Biomimétisme, Biomimicry, Bioinspired innovation | Scoop.it
Comparable to some other animals on our planet, bats use other methods instead sight in order to navigate or hunt. They are able to "see" in the dark by sending
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Extrafloral nectar secretion from wounds of Solanum dulcamara

Extrafloral nectar secretion from wounds of Solanum dulcamara | Biomimétisme, Biomimicry, Bioinspired innovation | Scoop.it
Des plantes sécrètent une substance nourricière pour récompenser des fourmis qui vont la défendre contre des prédateurs (insectes,  limaces) Le liquide est riche en saccharose. Après avoir subi une agression, la plante recrute des gardes du corps et leur offre une récompense.
http://bit.ly/1NU0pus
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Mushrooms, whales and hurricanes: how bio-inspiration boosts energy efficiency

Mushrooms, whales and hurricanes: how bio-inspiration boosts energy efficiency | Biomimétisme, Biomimicry, Bioinspired innovation | Scoop.it

Seven finalists in the first Biomimicry Global Design Challenge. The competitors, who come from around the globe, sought to develop efficient, nature-inspired solutions to food shortages. Their solutions copy a wide array of organisms, including an agricultural drainage system based on earthworms, an edible insect harvester based on a carnivorous plant and a desalinizing water still that imitates mangrove trees. These projects – and the rest of the Global Design Challenge competitors – have until October to develop working prototypes for their inventions. In the meantime, here are a few other bio-inspired innovations that are already changing our lives and the way we relate to nature.

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Why Nature Prefers Hexagons - Issue 35: Boundaries - Nautilus

Why Nature Prefers Hexagons - Issue 35: Boundaries - Nautilus | Biomimétisme, Biomimicry, Bioinspired innovation | Scoop.it
How do bees do it? The honeycombs in which they store their amber nectar are marvels of precision engineering, an array of prism-shaped…
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