Bright semiconductor nanocrystals known as quantum dots give QLED TV screens their vibrant colors. But attempts to increase the intensity of that light generate heat instead, reducing the dots’ light-producing efficiency.
The World Nano Foundation and pandemic experts say regular use of inexpensive lateral flow rapid antigen mass testing kits is the way to beat COVID-19, its variants and future viruses.
Nanobubbles or ultrafine bubbles are sub-micron (~50nm to ~700nm) gas-containing cavities in aqueous solution with unique physical characteristics that differ from other types of bubbles, and have the ability to change the normal characteristics of water. Nanobubbles can exist on surfaces (surface or interfacial NBs) and as dispersed in a liquid phase (bulk NBs). Their use can contribute greatly to sustainability challenges as environmentally friendly alternative and solutions.
Researchers at Caltech have developed an artificial neural network made out of DNA that can solve a classic machine learning problem: correctly identifying handwritten numbers. The work is a significant step in demonstrating the capacity to program artificial intelligence into synthetic biomolecular circuits.
Nanoscale Kirigami has taken off as a field of research in the last few years; the approach is based on the ancient arts of origami (making 3-D shapes by folding paper) and kirigami (which allows cutting as well as folding) but applied to flat materials at the nanoscale, measured in billionths of a meter.
Semiconductor quantum dots (nanocrystals just a few nanometers in size) have attracted researchers’ attention due to the size dependent effects that determine their novel electrical and optical properties. By changing the size of such objects, it is possible to adjust the wavelength of the emission they absorb, thus implementing selective photodetectors, including those for UV radiation.
Nanofiber-based wound dressings loaded with vitamin D spur the production of an antimicrobial peptide, a key step forward in the battle against surgical site infections, or SSIs. The findings by Oregon State University researchers and other collaborators, published Wednesday in Nanomedicine, are important because SSIs are the most common healthcare-associated infection and result in widespread human suffering and economic loss.
porous materials such as zeolites and metal-organic frameworks have drawn the attention of the scientific community due to the wide range of applications derived from their porosity. Recently, a new class of all organic materials has emerged – the hydrogen-bonded organic frameworks (HOFs).
Polymer plastic solar cells remain an industry priority because of their light weight, flexibility and cost-effectiveness. Now scientists from Stony Brook University and the U.S. Department of Energy’s (DOE) Brookhaven National Laboratory (BNL) have demonstrated that these types of solar cells can be more efficient and have more stability based on new research findings.
Russian researchers from the Moscow Institute of Physics and Technology have developed biosensor chips of unprecedented sensitivity, which are based on copper instead of the conventionally used gold. Besides making the device somewhat cheaper, this innovation will facilitate the manufacturing process.
An international team has developed a ground-breaking single-electron “pump”. The electron pump device developed by the researchers can produce one billion electrons per second and uses quantum mechanics to control them one-by-one. And it’s so precise they have been able to use this device to measure the limitations of current electronics equipment.
Invigorating the idea of computers based on fluids instead of silicon, researchers at the National Institute of Standards and Technology (NIST) have shown how computational logic operations could be performed in a liquid medium by simulating the trapping of ions (charged atoms) in graphene (a sheet of carbon atoms) floating in saline solution. The scheme might also be used in applications such as water filtration, energy storage or sensor technology.