Mar 19, 2024 (Nanowerk News) A new fabrication process for helical metal nanoparticles provides a simpler, cheaper way to rapidly produce a material essential for biomedical and optical devices, according to a study by University of Michigan researchers. “One of our motivators is to drastically simplify manufacturing of complex materials...
Advanced hologram protection to combat counterfeiting
Mar 19, 2024 (Nanowerk News) Counterfeiting of various documents, banknotes, or tickets is a common problem that can be encountered in everyday life, even when shopping. Recognising the scale and seriousness of the problem, researchers at Kaunas University of Technology (KTU), Lithuania, decided to look for ways to further reduce...
Higher intensity x-ray beams don’t always give stronger diffraction patterns
Mar 19, 2024 (Nanowerk News) Turning up the intensity of x-ray beams used to probe the atomic structures of materials can actually reduce the intensity of x-rays scattered from the material, a RIKEN-led team has found. This rather counterintuitive result could be harnessed to produce ultrashort pulses of x-rays. Scientists...
High-quality microwave signals generated from tiny photonic chip
Mar 19, 2024 (Nanowerk News) In a new Nature study ("All-optical frequency division on-chip using a single laser"), Columbia Engineering researchers have built a photonic chip that is able to produce high-quality, ultra-low-noise microwave signals using only a single laser. The compact device — a chip so small, it could...
Researchers develop brain-inspired wireless system to gather data from salt-sized sensors
Mar 19, 2024 (Nanowerk News) Tiny chips may equal a big breakthrough for a team of scientists led by Brown University engineers. Writing in Nature Electronics ("An asynchronous wireless network for capturing event-driven data from large populations of autonomous sensors"), the research team describes a novel approach for a wireless...
shining new light on electron behavior using 2-photon photoemission spectroscopy
Mar 19, 2024 (Nanowerk News) Organic electronics is a field that has garnered significant interest in academic and industrial circles due to its potential applications in OLEDs and organic solar cells, offering advantages such as lightweight design, flexibility, and cost-efficiency. These devices are made by depositing a thin film of...
Gold nanocatalysts cross blood-brain barrier aided by unique protein corona composition
Mar 19, 2024 (Nanowerk Spotlight) The blood-brain barrier, a tightly regulated interface between the circulating blood and the central nervous system, has long been a daunting obstacle in the quest to deliver effective treatments for neurodegenerative diseases. Despite significant advancements in our understanding of these debilitating conditions, the development of...
Two-faced solar panels can generate more power at up to 70% less cost
Mar 18, 2024 (Nanowerk News) Scientists at the University of Surrey have built a new kind of solar panel with two faces, both of them pretty. Their flexible perovskite panels have electrodes made of carbon nanotubes. These can generate more power with greater efficiency and at a cost 70% lower...
Synthesis of bulk van der Waals materials at low energy cost
Mar 18, 2024 (Nanowerk News) Researchers from the Shenzhen Institute of Advanced Technology (SIAT) of the Chinese Academy of Sciences (CAS), the Shenzhen International Graduate School of Tsinghua University, the Institute of Metal Research of CAS, and the University of Science and Technology of China of CAS, have synthesized bulk...
Recycling carbon nanotube sheets with full property retention
Mar 18, 2024 (Nanowerk News) Researchers from IMDEA Materials Institute have published groundbreaking work demonstrating, for the first time, the ability to recycle high-performance carbon nanotube (CNT) sheets while preserving their shape, structural alignment, mechanical and electrical properties, and intrinsic flexibility. The paper was recently published in a special issue...