ScienceDaily: Matter & Energy News |
| 'Molecular glue' makes perovskite solar cells dramatically more reliable over time Posted: 06 May 2021 11:21 AM PDT In a study that could help to bring inexpensive, efficient perovskite solar cells one step closer to commercial use, researchers found a way to strengthen a key weak point in the cells' internal structure, dramatically increasing their functional life. |
| Evading the uncertainty principle in quantum physics Posted: 06 May 2021 11:21 AM PDT In quantum mechanics, the Heisenberg uncertainty principle dictates that the position and speed of an object cannot both be known fully precisely at the same time. Researchers now show that two vibrating drumheads, the size of a human hair, can be prepared in a quantum state which evades the uncertainty principle. |
| Artificial color-changing material that mimics chameleon skin can detect seafood freshness Posted: 06 May 2021 11:20 AM PDT Scientists have designed an artificial color-changing material that mimics chameleon skin, with luminogens (molecules that make crystals glow) organized into different core and shell hydrogel layers instead of one uniform matrix. The findings demonstrate that a two-luminogen hydrogel chemosensor developed with this design can detect seafood freshness by changing color in response to amine vapors released by microbes as fish spoils. |
| Physicists find a novel way to switch antiferromagnetism on and off Posted: 06 May 2021 09:57 AM PDT Physicists have found a novel way to switch antiferromagnetism on and off, which could lead to faster, more secure memory storage. |
| First nanoscale look at a reaction that limits the efficiency of generating hydrogen fuel Posted: 06 May 2021 07:54 AM PDT Transitioning to a hydrogen economy will require massive production of cheap, clean hydrogen gas for fuel and chemical feedstocks. New tools allow scientists to zoom in on a catalytic reaction that's been a bottleneck in efforts to generate hydrogen from water more efficiently. |
| Pioneering study explores passengers' experiences of self-driving cars in winter conditions Posted: 06 May 2021 07:54 AM PDT Trust, safety and security are the most important factors affecting passengers' attitudes towards self-driving cars. Younger people felt their personal security to be significantly better than older people. The findings are from a study into passengers' attitudes towards, and experiences of, self-driving cars. |
| Just a few atoms thick: New functional materials developed Posted: 06 May 2021 07:53 AM PDT Using the smallest 'construction set' in the world, a research team is designing new materials for computer chips, light-emitting diodes and solar cells. |
| A high-tech textile to stay comfortable outdoors Posted: 05 May 2021 08:14 AM PDT Clothing, from tank tops to parkas, helps people adapt to temperatures outdoors. But you can only put on or take off so much of it, and fluctuations in weather can render what you are wearing entirely inadequate. Researchers now describe a high-tech alternative: a reversible textile they designed to trap warmth in the cold and reflect it during hot weather, all while generating small amounts of electricity. |
| An uncrackable combination of invisible ink and artificial intelligence Posted: 05 May 2021 08:13 AM PDT Coded messages in invisible ink sound like something only found in espionage books, but in real life, they can have important security purposes. Yet, they can be cracked if their encryption is predictable. Now, researchers have printed complexly encoded data with normal ink and a carbon nanoparticle-based invisible ink, requiring both UV light and a computer that has been taught the code to reveal the correct messages. |
| Posted: 05 May 2021 08:13 AM PDT With the help of their custom-built super-resolution microscope, biophysicists have discovered where and why mitochondria divide, putting to rest controversy about the underlying molecular machinery of mitochondrial fission. Mitochondria either split in half or cut off their ends to self-regulate. |
| Release of drugs from a supramolecular cage Posted: 05 May 2021 08:13 AM PDT How can a highly effective drug be transported to the precise location in the body where it is needed? Chemists now present a solution using a molecular cage that opens through ultrasonification. |
| Microneedles are promising devices for painless drug delivery with minimal side effects Posted: 05 May 2021 08:13 AM PDT A recent study monitors progress in the development of microneedles for immunotherapy and discusses the challenges regarding their production. Researchers suggest using microneedles for immunotherapy due to the abundance of immune cells under the skin. The aim is to vaccinate or treat different diseases, such as cancer and autoimmune disorders, with minimal invasiveness and side effects. |
| 3D bioprinting technique controls cell orientation Posted: 05 May 2021 08:13 AM PDT Scientists have developed a new approach for directing cell orientation within deposited hydrogel fibers via a method called multicompartmental bioprinting. |
| SMART evaluates impact of competition between autonomous vehicles and public transit Posted: 05 May 2021 07:20 AM PDT Researchers at Singapore-MIT Alliance for Research and Technology (SMART) and Massachusetts Institute of Technology (MIT) conducted a case study in the first-mile mobility market from origins to subway stations in Tampines, Singapore, to find out the impact of competition between public transit and shared autonomous vehicles. The study revealed that with the right conditions, the competition can be beneficial for both parties and improve overall transport systems. |
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