Piezoelectric
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Researchers regenerated damaged bone in mice by creating a scaffold that combines a piezoelectric framework and the growth-promoting properties of a naturally occurring mineral. The novel “bone bandage” has wide-ranging potential applications.
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In a move that echoes a sci-fi series, researchers have developed a material that was able to not only stimulate nerves in rodents, but reconnect them as well. The finding could lead to injectable particles that take the place of larger implants.
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Monitoring extreme environments requires a sensor continues to work in high temperatures. Now, researchers have developed a piezoelectric sensor that operates reliably at the temperature of erupting mafic lava, the hottest type of lava on Earth.
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Although there already are experimental "telehaptic" systems that allow people to send and receive tactile sensations, they tend to be bulky and awkward. A new one is much slimmer and thus more practical, thanks to the use of piezoelectric materials.
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While seabed-located cameras are great for tasks such as monitoring wildlife, powering them can be challenging. That's where a new MIT-designed camera comes in, as it requires no battery, plus it wirelessly transmits its photos through the water.
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One of the dangerous things about sports-related concussions is the fact that athletes may not realize they have one, so they don't seek medical attention. A new sensor could let them know, and it would go on their neck, not their head.
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Engineers at MIT have developed an ultra-thin speaker that could be used to make entire surfaces produce sound. The unique design should be energy efficient and easy to produce at scale, the team says.
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By stimulating cells to reproduce, electricity has already been shown to help heal soft tissue injuries. Now, an electricity-producing implantable material likewise appears to boost the regrowth of cartilage in compromised joints.
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Although we've seen several systems that use vehicle-integrated cameras to detect intoxicated drivers, a team of Japanese scientists claim that such technology isn't always reliable. Their alternative? A drunk-driver-detecting car seat.
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Although hearing aids do make life easier for many people, their limited battery life can be problematic. Scientists have set about addressing that shortcoming, by designing a hearing aid that requires no batteries.
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While implanted artificial teeth do offer a longer-term alternative to dentures, they may need to be surgically replaced if gum infections occur. Scientists are thus working on a better implant, that would generate electricity via mouth movements.
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A new study has explored the potential of piezoelectric devices, which turn motion into electricity, to treat damaged tendons and found they can act as a "switch" to turn on highly targeted regenerative processes.
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