Mussel-inspired Material is Elastic and Rigid at the same time #Biohacking

Rubber band ball on gray 1600
Via Futurity

Rigidity and elasticity are usually at opposite ends of the continuum. You can have one, but not the other. Now, scientists have taken a step closer to a material that has both.

Typically, the more elastic a material, the less able it is to bear loads and resist forces. The more rigid it is, the more prone it is to rupture at lower strains when the load or force exceeds its capacity.

“You can see both rigidity and extensibility with mussels’ byssus threads,” says co-lead author Kayetan Chorazewicz.

Mussels spend their lives in the rocky intertidal zone, where their ability to hold fast is a matter of life and death. The threads they exude onto the rocks must be both stretchable enough to allow them to find the appropriate “grip” on irregular surfaces and absorb the constant pounding of waves, yet rigid enough to keep the mussels themselves from bouncing around in the currents and banging against the structures to which they’ve affixed themselves.

STICKY SECRET

The optimal combination of the two qualities is among the secrets of their success in such a variable and inhospitable environment.

Taking their cue from mollusks, researchers designed a functionally graded material—a relatively new class of materials that takes advantage of differences in their compositions—to create a synthetic version of the mussels’ byssus threads that not only minimizes the trade-off between flexibility and strength, but also can be used in wet environments.

As reported in Macromolecular Chemistry and Physics, the key to this technology is a cross-linked combination of the monomer benzyl acrylate (BZA) with triethylene glycol dimethacrylate (TEGDMA), a common polymer used in dental restoration fillers.

See more!


Eink, E-paper, Think Ink – Collin shares six segments pondering the unusual low-power display technology that somehow still seems a bit sci-fi – http://adafruit.com/thinkink

Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.

Join 26,000+ makers on Adafruit’s Discord channels and be part of the community! http://adafru.it/discord

Have an amazing project to share? The Electronics Show and Tell is every Wednesday at 7pm ET! To join, head over to YouTube and check out the show’s live chat – we’ll post the link there.

Join us every Wednesday night at 8pm ET for Ask an Engineer!

Follow Adafruit on Instagram for top secret new products, behinds the scenes and more https://www.instagram.com/adafruit/

CircuitPython – The easiest way to program microcontrollers – CircuitPython.org


Maker Business — To make it through a tough business cycle, layoffs should be a last resort

Wearables — Be outdoor ready

Electronics — When do I use X10?

Python for Microcontrollers — Python on Microcontrollers Newsletter: CircuitPython 6.1.0.RC0, Blinka Explained, and more! #Python #Adafruit #CircuitPython @micropython @ThePSF

Adafruit IoT Monthly — Our Favorite IoT Projects from 2020

Microsoft MakeCode — Space Jam, The MakeCode Show & More!

EYE on NPI — Maxim’s Himalaya uSLIC Step-Down Power Module #EyeOnNPI @maximintegrated @digikey

New Products – Adafruit Industries – Makers, hackers, artists, designers and engineers! — NEW PRODUCT – Plant Care Kit for micro:bit or CLUE

Get the only spam-free daily newsletter about wearables, running a "maker business", electronic tips and more! Subscribe at AdafruitDaily.com !



No Comments

No comments yet.

Sorry, the comment form is closed at this time.