Sep 06, 2022 (Nanowerk News) A little Martian dust appears to go a long way. A small amount of simulated crushed Martian rock mixed with a titanium alloy made a stronger, high-performance material in a 3D-printing process that could one day be used on Mars to make tools or rocket...
Combing light with sharper teeth
Sep 05, 2022 (Nanowerk News) A ruler made of light. That is the simplified comparison that is commonly used to describe what a microcomb is. In short, the principle is based on a laser sending light that circulates inside a small cavity, a so-called micro resonator. There, the light is...
Red Giant Betelgeuse was yellow some 2,000 years ago
Sep 05, 2022 (Nanowerk News) With progressing nuclear fusion in the center of a star, brightness, size, and color also change. Astrophysicists can derive from such properties important information on age and mass of a star. Those stars with significantly more mass than our Sun are blue-white or red –...
Organic thin-film sensors for light-source analysis and anti-counterfeiting applications
Sep 05, 2022 (Nanowerk News) In a recent publication in the scientific journal Advanced Materials ("Accurate Wavelength Tracking by Exciton Spin Mixing"), a team of physicists and chemists from TU Dresden presents an organic thin-film sensor that describes a completely new way of identifying the wavelength of light and achieves...
Super-dense packing of hydrogen molecules on a surface
Sep 05, 2022 (Nanowerk News) Hydrogen (H2) is currently discussed as an ideal energy carrier in a world requiring renewable energies. Hydrogen has the highest gravimetric energy density of all chemical fuels (141 MJ/kg), which is three times higher than gasoline (46 MJ/kg). However, its low volumetric density restricts its...
Coupling of electron-hole pairs
Sep 05, 2022 (Nanowerk News) Two-dimensional van der Waals materials have been the focus of work by numerous research groups for some time. Standing just a few atomic layers thick, these structures are produced in the laboratory by combining atom-thick layers of different materials (in a process referred to as...
Novel ‘nano killers’ for sterilization and antifouling
Sep 05, 2022 (Nanowerk News) Sulfate-Reducing Bacteria (SRB), an anaerobic bacterium, has long been generally considered the main culprit in causing corrosion failure of metal materials. Previous studies usually used nanozyme as antibacterial materials. However, nanozyme relies on H2O2, O2, superoxide and hydroxyl radicals to produce reactive oxygen species, which...
MXene-based biosensor for early cancer detection
Sep 05, 2022 (Nanowerk News) Exosomes, as a potential biomarker in liquid biopsy, hold great potential for early cancer diagnosis and monitoring of highly metastatic cancer cells. Recently, a group of researchers proposed a novel electrochemical biosensor for sensitive identification and detection of target exosomes. The biosensor, based on 2D...
a rechargeable, remote-controllable cyborg cockroach
Sep 05, 2022 (Nanowerk News) An international team led by researchers at the RIKEN Cluster for Pioneering Research (CPR) has engineered a system for creating remote controlled cyborg cockroaches, equipped with a tiny wireless control module that is powered by a rechargeable battery attached to a solar cell. Despite the...
A novel approach to creating tailored odors and fragrances using machine learning
Sep 05, 2022 (Nanowerk News) The sense of smell is one of the basic senses of animal species. It is critical to finding food, realizing attraction, and sensing danger. Humans detect smells, or odorants, with olfactory receptors expressed in olfactory nerve cells. These olfactory impressions of odorants on nerve cells...