[Images above] Credit: NIST
Researchers from University of Utah and Oblate Optics, Inc. created a camera that does not require focusing by using a single lens that is about one-thousandth of an inch thick. The lens uses infrared light and relatively low numerical aperture, but the researchers plan to extend the lens to larger numerical apertures and the full visible light spectrum.
University of Göttingen researchers produced a new nanomaterial based on the Egyptian blue pigment, which is ideally suited for applications in imaging using near infrared spectroscopy and microscopy. They did so by exfoliating extremely thin layers from grains of calcium copper silicate.
Lawrence Berkeley National Laboratory researchers developed an artificial photosynthesis system, made of nanosized tubes, that appears capable of performing all the key steps of the fuel-generating reaction. Each tube is made of three layers: an inner layer of cobalt oxide, a middle layer of silica, and an outer layer of titanium dioxide.
In a review article, nanoengineers at University of California, San Diego describe four challenges that need addressed to advance all-solid-state batteries to commercialization, including creating stable solid electrolyte chemical interfaces, new tools for diagnosis and characterization, scalable and cost-effective manufacturability, and recyclability.
Nagoya University scientists developed a one-step fabrication process that improves the ability of nanocarbons to remove toxic heavy metal ions from water. They used a method called “solution plasma process” to create amino-modified nanocarbons.
Rice University researchers used molecular-imprinted graphitic carbon nitride nanosheets to catch and kill free-floating antibiotic resistant genes found in secondary effluent produced by wastewater treatment plants.
Researchers from Georgia Institute of Technology, Meisei University, and Waseda University used a technique called surface-activated bonding to place high thermal conductivity materials much closer to the active device regions in gallium nitride.
Scientists at Nanyang Technological University Singapore, Massachusetts Institute of Technology, and Brown University developed and “trained” a neural network machine learning system to predict samples’ yield strength 20 times more accurately than existing nano-indentation methods.
University at Buffalo researchers used computational modeling to explore how well various materials would dampen incoming sounds with frequencies up to 20 kilohertz. The best set-up they found consisted of tapered chains of beads made from tungsten carbide, alternating with tapered chains of beads made from a plastic called Delrin.
Researchers at the University of Southampton demonstrated a new leap in hollow-core fiber performance. Hollow-core fibers replace conventional glass cores with gas or a vacuum. The newest hollow-core fibers attenuate the light traveling through it by 50% less than the previous record, reported only six months ago.
Indian Institute of Technology Madras researchers say their new study shows concrete made from clay, fly ash, and limestone holds promise as replacement for cement. They identified the chemical composition of the blended cement system as a critical factor in the development of nanoscale pore structure, which is the key to concrete durability.
Researchers led by University of Trento created colloidal glasses characterized by unidirectional stress. Being able to control internal stress is a step toward controlling these forces in industrial applications.