Wow! Combine this research with Berkeley's Gecko Project and there is a possibility of on-demand adhesion. I could spend all morning dreaming about possible applications for such a substance. I can also see this being used for aerodynamic applications... dynamic vortex shedding for variable drag profiles -- both high-speed and high-drag configurations from the same wing without flaps or geometry adjustment... sonic boom reduction... stealth radar deflection... underwater propulsion... oh my!
On-demand television programming, on demand software, now plastic material that can adapt on demand. Very sci-fi, but as William notes, tons of possible applications. The real test will be in the design of the systems that can deliver the voltage changes to modify the surface texture. That's the real design challenge for any of these applications.
Thanks, williamlweaver, for your response. I had the same initial reaction, and my husband told me about the Gecko Project. After writing this, we saw the latest Mission Impossible via Netflix, and when Tom Cruise's right hand glove quits at 120 stories, I thought of this discovery.
For those who are interested, here is a link to the article by Zhao. The polymer needs to be fairly soft (modulus less than 1450 psi) -- although electrostatic lithography requires materials which are much softer still. Zhao's group used a silicone rubber. It was bonded to a more rigid polymer film (Kapton), which in turn was bonded to a metal electrode. On the other side of the silicone was what Zhao describes as a "transparent conformal electrode" (actually a 20% salt solution).
This is definitely an interesting phenomenon which could have all kinds of potential applications. Zhao's group is doing a lot of fascinating work, and it's great to see it being discussed outside of academia.
Thanks for the additional links, Dave. And ChasChas, I think that's a brilliant usage idea for a material that can change texture on demand, except at this point we're only talking soft plastics not hard, durable ones used in structures. I wonder how difficult it would be to extend this idea to rigid plastics, or find a different method that worked with them.
A make-your-own Star Wars Sith Lightsaber hilt is heftier and better-looking than most others out there, according to its maker, Sean Charlesworth. You can 3D print it from free source files, and there's even a hardware kit available -- not free -- so you can build one just in time for Halloween.
Some next-generation bio-based materials are superior in performance to their petro-based counterparts, but also face some commercial challenges. This is especially true of certain biopolymers, adhesives, coatings, and advanced materials.
Cars and other vehicles, as well as electronics and medical devices, continue to lead the use cases for the new plastics products we've been seeing, as engineers design products for tougher environments.
LeMond Composites, founded by three-time Tour de France cycling champion Greg LeMond, is the first to license a new carbon fiber production method invented by Oak Ridge National Laboratory (ORNL) that's faster, cheaper, and greener.
This month will mark the launch of the SpeedFoiler, a super-fast, ultra-lightweight foiling catamaran that can fly short distances over water faster than other foiling designs, in part because of its carbon composite materials.
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