Scientists have shown they can create spectrometers small enough to fit inside a smartphone camera, using tiny semiconductor nanoparticles called quantum dots. Such devices could be used to diagnose diseases, especially skin conditions, or to detect environmental pollutants and food conditions.
Using ultrafast laser pulses that speed up the data recording process, researchers adopted a novel technique, ultrafast electron crystallography (UEC), to visualize directly in four dimensions the changing atomic configurations of the materials undergoing the phase changes.
Certain types of stem cells use microscopic, threadlike nanotubes to communicate with neighboring cells, like a landline phone connection, rather than sending a broadcast signal, researchers have discovered.
Researchers have designed a microscope instrument so stable that it can accurately measure the 3D movement of individual molecules over many hours - hundreds of times longer than the current limit measured in seconds.
Designing, understanding, and controlling the interface formation between molecular semiconductors and ferromagnets are important to the development of organic spintronics because the interface plays a critical role in determining the efficiency of spin injection and detection.
To help nano-EHS (Environment, Health and Safety) researchers navigate the often complex measurement issues, the National Institute of Standards and Technology (NIST) has launched a new website devoted to NIST-developed (or co-developed) and validated laboratory protocols for nano-EHS studies.
Chemists truly went back to the drawing board to develop new X-shaped organic building blocks that can be linked together by metal ions to form an Archimedean cuboctahedron. They report that by changing the concentration or using different counterions, the cuboctahedron can be reversibly split into two octahedra - an interesting new type of fusion-fission switching process.
Elevated or diminished eye pressure impairs our ability to see, and in the worst cases, can even lead to blindness. Until now, there has been no effective long-term treatment. In response, researchers are developing an implantable microfluid system that can efficiently and durably stabilize intraocular pressure.
Researchers have successfully produced pairs of spin-entangled electrons and demonstrated, for the first time, that these electrons remain entangled even when they are separated from one another on a chip.
A new bio-inspired zeolite catalyst might pave the way to small scale gas-to-liquid technologies converting natural gas to fuels and starting materials for the chemical industry. Investigating the mechanism of the selective oxidation of methane to methanol they identified a copper-oxo-cluster as the active center inside the zeolite micropores.