🎄☃❄️🎁 It's beginning to look a lot like ADABOX-mas! The next ADABOX from Adafruit ships soon! Get yours now, or give as a gift! 🎄☃❄️🎁
0

Getting a grip on mussel adhesion #Biohacking

Via A*STAR research

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.

“Water is not a friendly media for sticking stuff together, but many marine creatures are able to do it,” says Ali Miserez, who led the research at Nanyang Technological University, in collaboration with Chandra Verma at the A*STAR Bioinformatics Institute, with funding from the Maritime and Port Authority of Singapore and the Singapore Maritime Institute. “By getting a glimpse of what exists in nature, we can mimic and manipulate it toward something useful,” adds Verma.

Mussels, within seconds of feeling out a rock with their foot, begin to produce long, stiff and durable threads, called byssus — usually described as the mussel ‘beard’.

Miserez’s laboratory had previously identified the byssus proteins — Pvfp-3, -5 and -6 — but wanted to know if they released in sequence or all at once. His team took a series of samples in rapid succession from Asian green mussels induced to secrete byssus onto a glass plate.

Mass spectrometry revealed that one protein, Pvfp-5, always comes out first. Further analysis, using methods called the quartz crystal microbalance and the surface force apparatus, showed that Pvfp-5 adheres most strongly to the surface, and infrared spectroscopy detected a gradual displacement of water molecules only around the area where Pvfp-5 lands.

To better understand the structure and function of Pvfp-5, Miserez collaborated with Verma, whose laboratory at A*STAR specializes in structural modeling. Verma’s team built a three-dimensional atomic model of Pvfp-5 based on information gleaned from known structures of smaller protein fragments and then simulated its movement in water.

Read more

57677e09140ba0ed1d8b4569


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 14,000+ makers on Adafruit’s Discord channels and be part of the community! http://adafru.it/discord

CircuitPython 2019!

Have an amazing project to share? The Electronics Show and Tell is every Wednesday at 7:30pm 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/


Maker Business — Robotics manufacturer Anki is stripped for parts

Wearables — Form a flame

Electronics — Calc that whip!

Biohacking — Vitamin-C + Gelatin for Accelerated Recovery

Python for Microcontrollers — See you at Supercon, Python #2 language on GitHub and more! #Python #Adafruit #CircuitPython #PythonHardware @circuitpython @micropython @ThePSF @Adafruit

Adafruit IoT Monthly — Helping Harry's Heart, CircuitPython meets AWS IoT and more!

Microsoft MakeCode — Lenticular Art Display with Crickit

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.