Quantcast
ZME Science
  • News
  • Environment
  • Health
  • Future
  • Space
  • Features
    Menu
    Natural Sciences
    Health
    History & Humanities
    Space & Astronomy
    Technology
    Culture
    Resources
    Natural Sciences

    Physics

    • Matter and Energy
    • Quantum Mechanics
    • Thermodynamics

    Chemistry

    • Periodic Table
    • Applied Chemistry
    • Materials
    • Physical Chemistry

    Biology

    • Anatomy
    • Biochemistry
    • Ecology
    • Genetics
    • Microbiology
    • Plants and Fungi

    Geology and Paleontology

    • Planet Earth
    • Earth Dynamics
    • Rocks and Minerals
    • Volcanoes
    • Dinosaurs
    • Fossils

    Animals

    • Mammals
    • Birds
    • Fish
    • Reptiles
    • Amphibians
    • Invertebrates
    • Pets
    • Conservation
    • Animals Facts

    Climate and Weather

    • Climate Change
    • Weather and Atmosphere

    Geography

    Mathematics

    Health
    • Drugs
    • Diseases and Conditions
    • Human Body
    • Mind and Brain
    • Food and Nutrition
    • Wellness
    History & Humanities
    • Anthropology
    • Archaeology
    • Economics
    • History
    • People
    • Sociology
    Space & Astronomy
    • The Solar System
    • The Sun
    • The Moon
    • Planets
    • Asteroids, Meteors and Comets
    • Astronomy
    • Astrophysics
    • Cosmology
    • Exoplanets and Alien Life
    • Spaceflight and Exploration
    Technology
    • Computer Science & IT
    • Engineering
    • Inventions
    • Sustainability
    • Renewable Energy
    • Green Living
    Culture
    • Culture and Society
    • Bizarre Stories
    • Lifestyle
    • Art and Music
    • Gaming
    • Books
    • Movies and Shows
    Resources
    • How To
    • Science Careers
    • Metascience
    • Fringe Science
    • Science Experiments
    • School and Study
    • Natural Sciences
    • Health
    • History and Humanities
    • Space & Astronomy
    • Culture
    • Technology
    • Resources
  • Reviews
  • More
    • Agriculture
    • Anthropology
    • Biology
    • Chemistry
    • Electronics
    • Geology
    • History
    • Mathematics
    • Nanotechnology
    • Economics
    • Paleontology
    • Physics
    • Psychology
    • Robotics
  • About Us
    • About
    • The Team
    • Advertise
    • Contribute
    • Privacy Policy
    • Contact
No Result
View All Result
ZME Science

No Result
View All Result
ZME Science

Home → Science

Engineers study the in-depth structure of wings to make better adhesive materials

"We believe that these structures could serve as inspiration for an interlocking one-directional adhesive or a material with directionally tailored permeability," the team said.

Alexandru Micu by Alexandru Micu
April 22, 2023
in Animals, Materials, News, Physics, Science

Bird feathers may be the key to new adhesives and advanced aerospace materials.

Barbules.
A, E, and F show birth feathers under normal magnification and under the microscope. B shows a model of the team’s 3D-printed structures and its behavior during a wing’s upstroke (C) and downstroke (D).
Image credits T. Sullivan, M. Meyers, E. Arzt, 2019, Science Advances.

If you’ve ever toyed around with a feather you’ll know that they somehow pull themselves back together if you take their barbs apart. The structures that underpin this behavior may point the way to novel adhesives and aerospace materials, say researchers from the University of California San Diego.

On the wings of progress

Tarah Sullivan, who earned a Ph.D. in materials science from the Jacobs School of Engineering at UC San Diego, led the research efforts. Her team is the first in roughly two decades to take an in-depth look at the structure of bird feathers without focusing on a particular species.

Based on their observations, the team 3D-printed structures that mimic the vanes, barbs, and barbules of feathers to better understand their surprising properties. This step helped them better see how feathers knit themselves back together after you pull them apart, for example, or how their undersides can capture air for lift while the top of the feather can block air to help with the landing.

Sullivan found that barbules — smaller, hook-like structures that connect feather barbs — are spaced within 8 to 16 micrometers of each other. This distance remained stable throughout bird species, from the hummingbird to the condor, suggesting that it is an important property for flight.

“The first time I saw feather barbules under the microscope I was in awe of their design: intricate, beautiful and functional,” she said. “As we studied feathers across many species it was amazing to find that despite the enormous differences in size of birds, barbules spacing was constant.”

The vane-barb-barbule structure seen in feathers could lead to the development of new materials. Adhesives — similar to Velcro — and materials intended for the aerospace industry are the team’s main areas of interest. Sullivan has already built a prototype adhesive material which she plans on discussing in a follow-up paper.

“We believe that these structures could serve as inspiration for an interlocking one-directional adhesive or a material with directionally tailored permeability,” she said.

Sullivan’s team also took a look at the bones in bird wings. They found that the humerus (the longest bone in the wing) is disproportionately long. This is likely intended to give it enough strength to take the weight of a bird’s body in flight, they say. Because bone strength is limited, and because the humerus carries the brunt of the load during flight, scaling it up proportionately to the rest of the wing just doesn’t cut it. Instead, the bone needs to grow much faster and to a greater relative size to withstand the forces it’s subjected to during flight.

This process by which certain body parts grow at different rates than the body as a whole is known as allometry. Our brains, for example, are allometric, as they grow much faster than the rest of our bodies when we’re young. Our hearts are isometric, as they grow proportionately to the rest of the body.

“Professor Eduard Arzt, our co-author from Saarland University in Germany, is an amateur pilot and became fascinated by the ‘bird wing’ problem. Together, we started doing allometric analyses on them and result is fascinating,” said Meyers.

“This shows that the synergy of scientists from different backgrounds can produce wonderful new understanding.”

The paper “Scaling of bird wings and feathers for efficient flight” has been published in the journal Science Advances.

Was this helpful?


Thanks for your feedback!

Related posts:
  1. Gecko clinging ability on wet surfaces might inspire water-resistant adhesive tape
  2. Gecko-inspired adhesive allows robots to grip wider range of objects
  3. Scientists develop mechanically active adhesive that prevents muscle loss
  4. Moth wings pave the way toward a less-noisy future by inspiring ultra-thin sound absorbers
  5. Birds can infer their partner’s desires, revealing a whole new depth of mind
Tags: AdhesivebirdfeatherflightWing

ADVERTISEMENT
  • News
  • Environment
  • Health
  • Future
  • Space
  • Features
  • Reviews
  • More
  • About Us

© 2007-2021 ZME Science - Not exactly rocket science. All Rights Reserved.

No Result
View All Result
  • News
  • Environment
  • Health
  • Future
  • Space
  • Features
    • Natural Sciences
    • Health
    • History and Humanities
    • Space & Astronomy
    • Culture
    • Technology
    • Resources
  • Reviews
  • More
    • Agriculture
    • Anthropology
    • Biology
    • Chemistry
    • Electronics
    • Geology
    • History
    • Mathematics
    • Nanotechnology
    • Economics
    • Paleontology
    • Physics
    • Psychology
    • Robotics
  • About Us
    • About
    • The Team
    • Advertise
    • Contribute
    • Privacy Policy
    • Contact

© 2007-2021 ZME Science - Not exactly rocket science. All Rights Reserved.

Don’t you want to get smarter every day?

YES, sign me up!

Over 35,000 subscribers can’t be wrong. Don’t worry, we never spam. By signing up you agree to our privacy policy.

✕
ZME Science News

FREE
VIEW