Category: Nanotech
-
Novel toxic gas sensor improves the limit of nitrogen dioxide detection
Performance evaluation results of the ultra-sensitive gas sensor developed by KRISS. Credit: Korea Research Institute of Standards and Science (KRISS) Researchers at the Korea Research Institute of Standards and Science developed a toxic gas sensor with the world’s highest sensitivity. This sensor can precisely monitor nitrogen dioxide (NO2), a toxic gas in the atmosphere, at…
-
Scientists discover new method for generating metal nanoparticles to use as catalysts
Credit: ACS Nano (2023). DOI: 10.1021/acsnano.3c08534 A team of researchers from the ITACA Institute of the Universitat Politècnica de València (UPV) and the Research Institute of Chemical Technology, a joint center of the Spanish National Research Council (CSIC) and the UPV, has discovered a new method for the manufacture of metal nanocatalysts that is more…
-
Intracerebral fate of engineered nanoparticles
Nanoparticle delivery to the brain has been an important area of technology development to improve diagnostic and treatment outcomes for brain diseases and injuries. So far, most research using nanoparticles for brain applications has focused on the delivery aspects — getting the nanoparticle to the site of interest and achieving the desired effect defines the…
-
Scientists discover a new method for generating metal nanoparticles for use as catalysts
Dec 29, 2023 (Nanowerk News) This new method is based on the exsolution process activated by microwave radiation. Exsolution is a method of generating metallic nanoparticles on the surface of ceramic materials. “At elevated temperatures and in a reducing atmosphere (usually hydrogen), metal atoms migrate from the structure of the material to its surface, forming…
-
Novel toxic gas sensor improves the limit of detection
Dec 29, 2023 (Nanowerk News) The Korea Research Institute of Standards and Science (KRISS) developed a toxic gas sensor with the world’s highest sensitivity. This sensor can precisely monitor nitrogen dioxide (NO2), a toxic gas in the atmosphere, at room temperature with low power consumption and ultra-high sensitivity. It can be applied to diverse fields,…
-
The quest for the ideal catalyst
Dec 28, 2023 (Nanowerk Spotlight) Inexpensive and Earth-abundant alternatives to expensive noble metal catalysts remain a grand challenge at the forefront of the chemical industry. Catalysts play an indispensable role in the vast majority of industrial chemical processes by accelerating reaction rates and enabling important transformations under feasible conditions. However, the gold-standard catalysts – platinum…
-
Developing nanocatalysts to overcome limitations of water electrolysis technology
Manufacturing process and evaluation results of high temperature water electrolysis cell with nanomaterials. Credit: Korea Institute of Science and Technology (KIST) Green hydrogen can be produced through water electrolysis technology, which uses renewable energy to split water into hydrogen and oxygen without emitting carbon dioxide. However, the production cost of green hydrogen is currently around…
-
Sublattice matching enables texturing of dissimilar materials
Publisher’s note Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations. This is a summary of: Huang, H. et al. Stacking textured films on lattice-mismatched transparent conducting oxides via matched Voronoi cell of oxygen sublattice. Nat. Mater. https://doi.org/10.1038/s41563-023-01746-3 (2023). Continue Reading News Source: www.nature.com
-
High-sensitivity terahertz detection by 2D plasmons in transistors
A bird’s-eye view of the device structure and electron micrographs of the device surface. G1: gate 1 electrode, G2: gate 2 electrode, D: drain electrode, and S: source electrode. Credit: Akira Satou et al A research group from Tohoku University and RIKEN has developed a high-speed, high-sensitivity terahertz-wave detector operating at room temperature, paving the…
-
New technique unlocks tunable plasmonics in promising photonic glass
Dec 27, 2023 (Nanowerk News) Artisans have long marveled at vivid red colors produced by gold nanoparticles scattered within stained glass masterpieces. But the quantum origins of such optical wonder remained shrouded in mystery until modern advances in nanoengineering and microscopy illuminated intricacies of plasmon resonance. Now researchers stand poised to propel nanoplasmonic technologies previously…