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Electronics News
Knowridge
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Wearable tech can spot early diabetes risk—without needles
- Researchers from the University of Tokyo have developed a noninvasive way to assess diabetes risk using wearable technology.
- The method utilizes continuous glucose monitoring (CGM) devices to track blood sugar levels in real time throughout the day.
- The CGM-based marker called AC_Var closely matched the disposition index, a predictor of future diabetes risk.
- The combination of AC_Var and glucose standard deviation outperformed traditional blood-based tests in identifying people at risk of developing diabetes.
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Medium
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ThinkPad L14 Gen 4 (Intel) Review: A Business Laptop That Means Business
- The ThinkPad L14 Gen 4 (Intel) is a business laptop that offers performance, security, and portability.
- It features a classic ThinkPad design with a premium look, spill-resistant keyboard, and lightweight build.
- Equipped with powerful processors, ample RAM, and SSD storage, it handles demanding tasks efficiently.
- The laptop excels in connectivity, offers long battery life, advanced security options, and ensures immersive audio and clear visuals.
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Knowridge
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Scientists tattoo tiny tardigrades to pioneer new microtech for living creatures
- Scientists have used tardigrades, also known as "water bears", to pioneer a new microfabrication technique.
- In a study published in Nano Letters, researchers used ice lithography to create microscopic tattoos on the tardigrades' surface.
- The technique involved freezing the animals, applying a protective compound, exposing them to an electron beam, and then rehydrating them.
- This breakthrough could lead to the development of tiny sensors that stick to living cells and the creation of "microbial cyborgs".
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Knowridge
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Scientists use new microscope to watch atoms dance in twisted graphene
- Scientists at the Weizmann Institute of Science have developed a powerful new microscope, cryogenic Quantum Twisting Microscope (QTM), to observe atoms and electrons in twisted graphene.
- The QTM enables scientists to study how electrons interact with phonons, vibrations in materials that have a significant impact on conductivity and superconductivity.
- During experiments with the QTM, researchers discovered a special kind of low-energy vibration called a 'phason' that is strongly linked to electrons in twisted graphene.
- This breakthrough microscope has the potential to advance our understanding of quantum materials and contribute to the development of quantum technologies.
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Knowridge
4w
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This tiny sensor could detect deadly chemicals and last for years
- A team at Sandia National Laboratories has developed a chemical sensor that can detect deadly airborne toxins.
- The sensor uses a sponge-like material called a sol-gel to trap chemical substances like sarin gas.
- It operates on very low power and has the potential to last for many years without needing a battery change.
- The team is working on enhancing the sensor's capabilities to detect multiple dangerous chemicals simultaneouly.
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Knowridge
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How new tech helps drones fly without GPS
- A new study offers promising solutions to help drones navigate without GPS.
- The research suggests combining different technologies like cameras, LiDAR, and motion sensors for accurate reading.
- Hybrid systems that mix pre-mapped data and real-time updates are currently the most promising.
- This research could benefit industries like disaster response, defense, agriculture, and smart city planning.
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Knowridge
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How MIT’s new material could change everything from fabrics to electronics
- Engineers at MIT have developed a flexible metamaterial that is both strong and stretchable.
- The material, printed in a double-network design, can stretch over four times its original length without breaking.
- When the rigid parts crack, the soft weave in the material prevents cracks from spreading and helps maintain the structure.
- This breakthrough could be used to create tear-proof fabrics, flexible electronics, and medical scaffolds for tissue growth.
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TechJuice
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Breakthrough Technology Uses Controlled Heat to Heal Lithium-Ion Batteries
- Researchers have demonstrated that applying controlled extreme heat to lithium-ion batteries can restore their energy capacity.
- Heating lithium-ion batteries to temperatures between 150°C and 250°C can reverse the degradation caused by prolonged use, rejuvenating the battery's internal structure.
- The new technology has implications for portable electronics and electric vehicles, addressing battery degradation issues and reducing electronic waste.
- The development of thermally regenerable batteries presents a promising avenue towards more responsible and long-lasting consumer electronics.
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Knowridge
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Scientists create electronic skin with super-unique fingerprints for smarter robots
- Scientists have created a new type of electronic skin that mimics human fingerprints, but with even greater security.
- The artificial fingerprint is made of flexible material called SEBS, which is soft and stretchable, ideal for use on robotic hands.
- The process to create these fingerprints involves treating the SEBS material with a solvent called toluene, causing the surface to wrinkle in a random way that is nearly impossible to reproduce.
- This technology could lead to more advanced and personalized robots, smarter security systems, and improved human-machine interfaces.
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Knowridge
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New flexible solar cells could bend 3,000 times and still shine bright
- A team of Chinese scientists has created flexible solar cells that can bend thousands of times without losing much of their power.
- These solar cells, made from a tandem cell structure with perovskite and CIGS materials, are lightweight, powerful, and have a record-breaking efficiency of 24.6%.
- The researchers developed a new method involving two types of liquids to improve the adhesion and smoothness of the perovskite layer on the rough surface of CIGS.
- Even after being bent 3,000 times, the flexible solar cells retained over 90% of their original power, making them ideal for wearable devices, portable solar panels, and solar-powered drones.
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Knowridge
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Boiling water to cool chips? New tech could supercharge your devices
- Researchers at the University of Tokyo have developed a new way to cool electronic chips using advanced water-based systems.
- The cooling method utilizes water's latent heat, which is seven times more powerful than sensible heat.
- A special 3D network of microchannels, capillary structures, and a manifold layer are designed to manage the boiling process inside the chip.
- The system's coefficient of performance (COP) reached up to 105, providing efficient cooling power for high-power electronics.
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Knowridge
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Vaporized lithium could power cheaper, longer-lasting devices
- Scientists have discovered a new way to make better batteries using the process of sublimation, where a solid turns directly into gas without becoming a liquid first.
- By heating lithium oxide (Li₂O), researchers at the Pacific Northwest National Laboratory (PNNL) were able to form single-crystal materials, ideal for strong and long-lasting batteries.
- This breakthrough has the potential to reduce manufacturing costs and improve battery lifespan, although there are still hurdles to overcome such as the current high price of Li₂O.
- The PNNL team is working with industry partners to scale up the process and aims to supply single-crystal battery materials to manufacturers by 2026.
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Knowridge
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New wearable AI device could help blind people navigate independently
- A new wearable device powered by artificial intelligence (AI) is making it easier for blind and partially sighted people to move around safely.
- The device includes a camera that scans the surroundings and sends video to an AI algorithm, which identifies obstacles and finds the best path forward.
- The device provides audio instructions through bone conduction headphones and uses wearable patches to gently vibrate and alert the user about obstacles.
- The combination of visual, audio, and touch signals makes the device more effective, helping users understand their environment in a natural and intuitive way.
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Knowridge
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New crystal tech supercharges light on a chip—No lens needed
- A team of researchers from the Netherlands and the U.S. has developed a new method to concentrate light in a very small space using a photonic crystal.
- This breakthrough could have significant implications for quantum communication, advanced sensors, and tiny lasers used in photonic chips.
- The photonic crystal structure prevents light from spreading through the material, but when two crystals are placed together, a unique boundary is formed where light can move along a narrow edge.
- The light is 'topologically protected,' meaning it can travel without being scattered or reflected by imperfections, and it can be amplified in a concentrated space.
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Knowridge
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This sweat sensor could track hydration and stress in real time
- A new wearable sweat sensor developed by researchers at the University of California, Berkeley, can track hydration levels and stress by analyzing sweat.
- The sensor uses electrodermal activity (EDA) to monitor hydration, a measurement of how easily electricity passes through the skin.
- The device has breathable, water-permeable electrodes that prevent sweat buildup, allowing for accurate readings and real-time updates.
- The goal is to make health monitoring more accessible and personal, empowering people to make better choices about exercise, rest, and mental well-being.
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