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3+ hour, 38+ min ago (464+ words) Imagine being able to watch organs and tissues work in real time. That's the power of Positron Emission Tomography, or PET imaging, a technology that gives physicians and researchers a window into cellular processes. In research recently published in Science, Virginia Tech chemist Wei Liu and his graduate student Chao Wang have found a new way to tag molecules to aid in PET scans - leading to improved processes, better imaging, and possibly more effective treatments. PET imaging is a crucial resource in the medical field. It allows doctors and scientists to visualize how organs and tissues are functioning at a cellular level. It can help diagnose and monitor diseases such as cancer, evaluate brain disorders such as epilepsy, and even assess heart conditions. PET imaging relies on radioactive atoms called radioisotopes. Chemists attach these to specific molecules based on the…...

3+ hour, 41+ min ago (261+ words) In the race for next-generation energy storage, incremental improvements won't cut it. We need systems that are faster, lighter, and far more efficient than anything currently on the market. That's exactly what we're building. Our current project focuses on ultra-fast supercapacitors leveraging the unique properties of graphene aerogel and carbon fiber architectures. By combining these materials, we achieve energy densities that approach lithium-ion batteries, while delivering power delivery rates impossible for conventional cells. Graphene aerogel offers exceptionally high surface area at ultra-low density, enabling rapid charge/discharge cycles without compromising structural integrity. Carbon fiber acts as both a current collector and reinforcement, creating a system that's simultaneously strong, lightweight, and conductive. The synergy of these materials allows us to: Maintain high energy retention over thousands of cycles Construct modular units that scale from microcontrollers to industrial grids Rather than chasing…...

3+ hour, 59+ min ago (511+ words) As the world moves toward cleaner energy and electric technologies, better batteries are becoming more important than ever. Batteries power everything from phones and laptops to electric vehicles and renewable energy storage systems. Today, lithium-ion batteries dominate the market, but lithium is relatively scarce and expensive. Scientists are therefore searching for alternatives that are cheaper, more abundant, and just as powerful. One promising option is the sodium-ion battery. Sodium is widely available and inexpensive, making it attractive for large-scale energy storage. Until recently, however, it was unclear whether sodium-ion batteries could match'or even exceed'the performance of lithium-ion batteries, especially when it comes to fast charging. A new study from researchers at the Tokyo University of Science suggests they can. The team found that sodium-ion batteries using a special carbon material can charge faster than comparable lithium-ion batteries. Their findings were…...

4+ hour, 18+ min ago (227+ words) [Newswise image]Using DNA as a template, the team made diverse classes of 3D frameworks made of inorganic materials. DOE SCIENCE NEWS SOURCE Building 3D Nanoscale Structures Through DNA-Assembly and Templating Using DNA scaffolding, scientists developed a universal method for producing a wide variety of functional, 3D metallic and semiconductor nanostructures Scientists used a new method to create 3D metallic and semiconductor nanostructures. The scale bar represents one micrometer. The graphics show how the researchers combined multiple techniques to layer materials on top of a 3D DNA framework "scaffolding." Newswise " For scientists to access and control inorganic materials" unique properties, they need to be able to control these materials" three-dimensional (3D) nanoarchitectures. Scientists can use DNA to guide nanoparticles to assemble into larger structures. Researchers used this technique to establish a new way to design 3D frameworks made of inorganic materials. Using DNA as a template, the…...

4+ hour, 23+ min ago (483+ words) Scientists from the University of Oxford and partner institutions have created a new class of organic materials called state-independent electrolytes (SIEs)." This discovery challenges a fundamental rule of electrochemistry: that ions move much more slowly when a liquid solidifies. Interestingly, SIEs maintain peak ionic performance, moving charges through solid structures at the same effortless fluid speed as in liquid form. "We've shown that organic materials can be engineered so that the movement of ions doesn't "freeze out' when the material solidifies. This opens new possibilities for safer, lightweight solid-state devices that work efficiently over wide temperature ranges," said Juliet Barclay, PhD student and first author on the study. These new organic materials maintain high ionic conductivity even after solidifying." In a standard battery, ions flow through a liquid. When that liquid crystallizes or freezes, the molecules lock together, trapping the…...

4+ hour, 24+ min ago (401+ words) By Itzel Godinez, PhD, and William (Hunter) Spence, PE NAVFAC EXWC engineers and technicians from EXWC's Shore Department " SH31 Environmental Compliance and Services " designed and built an innovative, trailer-mounted system to treat PFAS-impacted waters derived from land-based fire suppression systems, such as those used in hangars and on firetrucks. The PFAS Effluent Treatment System (PETS) III is a mobile system intended to remove per- and polyfluoroalkyl substances (PFAS) from waters impacted with aqueous film forming foam (AFFF) at low to medium PFAS concentrations and low presence of co-contaminants such as total organic carbon, total suspended solids, and total dissolved solids. "PETS III consists of a specialized treatment train that supports the treatment of PFAS-impacted waters. The treatment train comprises pre-treatment, filtration and sorption media. Each treatment step is a modular skit arranged on a trailer," Dr. Godinez said. "The latter provides…...

7+ hour, 22+ min ago (356+ words) Published Dec 18, 2025 4:01 PM EST To get in the holiday spirit, a group of physicists in the Netherlands recently crafted a tiny, 3D-printed Christmas tree from ice particles. The novel method isn't only good for decorative projects, however. According to their explainer in Nature, the approach could be useful across a range of industries'both here and far beyond Earth. After watching the physics in action, the team realized they could swap a 3D printer's nozzle with their water jet to build structures from pure ice. While ice-printing already exists, it requires special, often costly additives. "Previous ice-printing methods relied on cooled substrates or cryogenic infrastructure (liquid nitrogen, helium)," the physicists wrote. "Our approach integrates the jet into a commercial 3D printer housed inside a transparent vacuum chamber." Once a design was entered into the printer, its motion control guided the water jet exactly…...

9+ hour, 33+ min ago (545+ words) Virtually every scientific field has made strides by harnessing light to study the properties of substances. This technique, called spectroscopy, has countless research applications, and innovations in spectroscopic technologies are allowing it to make more accurate, efficient and diverse contributions today than ever. Ocean Optics explores how spectroscopy works, its variations and its applications in the lab and beyond. Discover how spectroscopic innovations will continue to revolutionize modern research. Scientists can visualize the data from their spectroscopic measurements as a spectrum of peaks and valleys, which is like a molecular fingerprint. By studying a sample's spectrum, we can draw conclusions about its material composition, structure and physical environment. Several types of spectroscopy exist, each with distinct advantages for different applications. Depending on the application, scientists can choose from a wide array of spectroscopy instruments. There is constant innovation in this…...

9+ hour, 57+ min ago (132+ words) Nobel laureate Joachim Frank lectures at Cusat on cryo-electron microscopy and its impact on biological research. Joachim Frank, who shared the 2017 Nobel Prize in Chemistry for developing cryo-electron microscopy, addressed faculty members and students as part of the Eminent Scholar Lecture Series at Cochin University of Science and Technology (Cusat) on Thursday.A professor at Columbia University, he explained the significance of single molecules in understanding biological processes and highlighted advancements in molecular electron microscopy Frank discussed how electron microscopy had evolved into a powerful tool for visualising biological structures at the molecular level, enabling deeper insights into complex cellular mechanisms, according to a release.Dr Jena, renowned cell biologist and distinguished professor at Wayne State University, delivered a lecture on "The porosome secretory machinery: from discovery to therapy...

10+ hour, 59+ min ago (507+ words) Tests confirmed that sodium insertion is naturally faster than lithium insertion for this electrode type. Researchers at the Tokyo University of Science have experimentally demonstrated that sodium-ion batteries (SIBs) possess a higher intrinsic charging speed than standard lithium-ion batteries (LIBs)." The study provides quantitative evidence that hard carbon (HC) anodes allow for faster ion insertion, suggesting SIBs are suitable for high-power applications, such as EVs, rather than serving merely as a cost-effective alternative. The global transition toward renewable energy systems has intensified the need for durable battery technologies. While lithium-ion batteries are the current standard, concerns regarding the availability of lithium have prompted a search for alternatives. "Because sodium is abundant and available at low-cost, sodium-ion batteries (SIBs) are a leading candidate for replacing LIBs while still meeting global energy demands," said the researchers associated with the study. The effectiveness…...