Exoskeletons, many of which are powered by springs or motors, can cause pain or injury if their joints are not aligned with the user's. To help manufacturers and consumers mitigate these risks, researchers at the National Institute of Standards and Technology (NIST) developed a new measurement method to test whether an exoskeleton and the person wearing it are moving smoothly and in harmony.
A unique collaboration between paleontologists, mechanical engineers and biomedical engineers revealed that the trabecular bone structure of hadrosaurs and several other dinosaurs is uniquely capable of supporting large weights, and different than that of mammals and birds.
The new kirigami-based shoe sole is intended to reduce the risks of slips and falls by adjusting as a person steps, increasing friction with pop-up spikes as necessary.
Aerogel is an excellent thermal insulator. So far, however, it has mainly been used on a large scale, for example in environmental technology, in physical experiments or in industrial catalysis. Empa researchers have now succeeded in making aerogels accessible to microelectronics and precision engineering: An article in the latest issue of the scientific journal "Nature" shows how 3D-printed parts made of silica aerogels and silica composite materials can be manufactured with high precision.
Materials scientists from Nanyang Technological University, Singapore (NTU Singapore) have invented a new type of surgical glue that can help join blood vessels and close wounds faster and may also serve as a platform to deliver pain relief drugs.
Three mummified animals from ancient Egypt have been digitally unwrapped and dissected by researchers, using high-resolution 3D scans that give unprecedented detail about the animals' lives - and deaths - over 2000 years ago. The three animals - a snake, a bird and a cat - are from the collection held by the Egypt Centre at Swansea University. Previous investigations had identified which animals they were, but very little else was known about what lay inside the mummies.
New nanoscale devices, made of synthetic proteins, have been designed to target a therapeutic agent only to cells with a specific, predetermined combinations of cell surface markers. They operate on their own and search out cells they were programmed to find. The hope is that they might guide CAR T cancer therapy, and other treatments where precision is critical, through a sort of molecular beacon.
A new catalyst design enables unprecedented control over the modification of fatty acid derivatives that opens the door to creating useful substances in a green and efficient manner.
The construction industry is currently facing two major challenges: the demand for sustainable infrastructure and the need to repair deteriorating buildings, bridges and roads. Concrete has a large carbon footprint, resulting in high waste and energy expenditure. Today, scientists report progress toward a sustainable building material made from local soil, using a 3D printer. The researchers will present their results at the American Chemical Society Fall 2020 Virtual Meeting & Expo.
Many viruses mutate so quickly that identifying effective vaccines or treatments is like trying to hit a moving target. A better understanding of viral propagation and evolution in single cells could help. Now, scientists report a new technique that can detect minor changes in RNA sequences in living cells that might give viruses an edge. The researchers will present their results today at the American Chemical Society Fall 2020 Virtual Meeting & Expo.