Electrons Crack Open Organic Solar Cells, Exposing Their Hidden 3D Molecular Architecture in a Single Microscope
Researchers at FAU Erlangen‑Nürnberg and partners demonstrated that three‑dimensional electron diffraction (3D ED) can deliver the same averaged structural information previously obtained only with X‑ray techniques for organic solar cells. By carefully managing electron dose, they captured nanoscale molecular order without damaging the beam‑sensitive material, all within a single transmission electron microscope. The study, published in Nature Communications, shows that electrons now provide both local imaging and bulk diffraction data, creating a multimodal microscopy platform for photovoltaic research.
Color Test 'Sniffs Out' Dangerous Staph Strains Fast
Researchers at RMIT University have created a rapid, low‑cost color‑changing test that distinguishes virulent and antibiotic‑resistant Staphylococcus aureus strains. The assay uses gold nanozyme particles and DNA aptamer binders to generate strain‑specific color fingerprints, functioning effectively in simulated wound fluid....
Rapid Melatonin Test Can Help Astronauts and Others Easily Monitor Their Biological Rhythm
Washington State University researchers have created a 15‑minute melatonin test that combines a paper‑strip assay with a 3D‑printed smartphone fluorescence reader. The lateral‑flow immunoassay uses europium nanoparticles to achieve laboratory‑grade sensitivity of 10 picograms per milliliter, pinpointing the onset of an...
AI-Guided Electron Microscope Provides Unique Glimpse Into the World of MXenes
Researchers at the National Laboratory of the Rockies have used an AI‑guided electron microscope to map point defects in three dimensions within MXene sheets. The study, published in Nature Communications, presents the first 3D reconstruction of titanium‑vacancy distributions in a...
Phospholipid Asymmetry Helps Explain Extracellular Vesicle Surface Charge and Therapeutic Quality
Researchers led by Naohiro Seo and Takanori Ichiki published a review in ACS Nano Medicine that links extracellular vesicle (EV) surface charge to phospholipid asymmetry, especially the distribution of phosphatidylserine (PS). They show exosomes retain PS on the inner leaflet,...
The Once-Theoretical Skyrmion Could Unlock Supercomputing Memory
Researchers have demonstrated that magnetic skyrmions as small as 2 nm can form in the centrosymmetric compound Eu(Ga,Al)₄, overturning the long‑standing belief that skyrmions require non‑centrosymmetric crystals. Using composition‑controlled crystal growth and synchrotron‑based ARPES, the team identified a Lifshitz transition that...
A New Fruit Wash Removes Pesticides and Extends Shelf Life
University of British Columbia researchers have created a biodegradable fruit wash that eliminates up to 96% of pesticide residues and forms an edible coating that slows browning and moisture loss. Tests showed apples retained acidity and sugars longer, while grapes...
Oxide-Based Sensor Opens Door to Greener, Faster, More Accurate Quality Testing of Food
Researchers at Oregon State University have created an oxide‑based electrochemical sensor that combines strontium oxide, functionalized carbon black and reduced graphene oxide into a nanocomposite. The material provides a highly conductive interface that accelerates electron transfer and enables precise detection...
Combining Ion Pumps and Click Chemistry Enables Precise Drug Release in the Body
Researchers at TU Wien have merged electronic ion pumps with click‑to‑release chemistry, creating an "iontronic click‑to‑release" system that delivers tiny trigger molecules instead of the drug itself. The triggers cleave immobilized drug linkers at the implant site, enabling precise, on‑demand...
These Nanotweezers Grab Thousands of Tiny Cell Packets in Seconds and Expose Their Hidden Cargo
Vanderbilt researchers led by Justus Ndukaife have unveiled interferometric electrohydrodynamic tweezers (IET), a platform that can trap and analyze thousands of nanoscale extracellular vesicles (EVs) in seconds. The system combines electrohydrodynamic flow‑based capture with label‑free interferometric imaging and Raman spectroscopy,...
A Nanoscale Robotic Cleaner Can Hunt, Capture and Remove Bacteria
Researchers at Julius‑Maximilian University of Würzburg have created sub‑micron nanorobots that use photon‑recoil propulsion to hunt, capture, and relocate bacteria. By embedding plasmonic nanoantennas, the devices steer via light polarisation, achieving rapid 90° turns and precise manipulation of microbial clusters....
AI Chips Could Get Faster with 30-Nanometer Embedded Memory that Cuts Data Shuttling
Researchers at the Institute of Science Tokyo have demonstrated a 30‑nanometer logic‑embedded memory stack using aluminum scandium nitride (AlScN) and ultra‑thin platinum electrodes. By heat‑treating the lower electrode, they preserved crystal alignment, allowing the memory to retain high performance even...
Using Menstrual Blood-Derived Particles to Treat Osteoarthritis
Lithuanian researchers have demonstrated that extracellular vesicles (EVs) harvested from menstrual‑blood‑derived mesenchymal stromal cells can stimulate cartilage regeneration in vitro, offering a cell‑free therapy for osteoarthritis. The EVs improved chondrocyte function and extracellular matrix synthesis even in cartilage cells taken...
Carbon Nanotube Fiber Sensors Achieve Record Measurement Error Below 0.1%
Skoltech researchers, together with Chinese and Iranian collaborators, demonstrated carbon nanotube fiber (CNTF) sensors that achieve a record‑low measurement error of under 0.1%, far surpassing the typical 2% error of commercial sensors. The study, published in iScience, proves CNTFs can...
Taming Skyrmions: Atom-Thin Magnets Point to Ultra-Dense, Low-Power Memory
Researchers at Argonne National Laboratory used cryogenic Lorentz transmission electron microscopy to directly image magnetic domains and skyrmion evolution in atom‑thin Fe₃GeTe₂ (FGT). The study shows that sample thickness and applied magnetic field precisely control skyrmion size, density, and reversal...
