Scientists create the world’s thinnest gold

A gold nanosheet that is just two atoms thick. It has been artificially coloured. Credit: University of Leeds Scientists at the University of Leeds have created a new form of gold which is just two atoms thick—the thinnest unsupported gold ever created. The researchers measured the thickness of the gold to be 0.47 nanometres—that is […]

DNA origami innovation increases accessibility, lowers cost

Ohio State researchers have developed a new approach to fabricate DNA origami using low-cost and widely available equipment such as hot plates, water baths and laboratory burners. Credit: The Ohio State University Researchers have developed a faster, cheaper and simpler alternative to typical DNA origami fabrication, increasing the technique’s accessibility and potential impact in industry […]

Actively swimming gold nanoparticles

Credit: Wiley Bacteria can actively move towards a nutrient source—a phenomenon known as chemotaxis—and they can move collectively in a process known as swarming. Chinese scientists have redesigned collective chemotaxis by creating artificial model nanoswimmers from chemically and biochemically modified gold nanoparticles. The model could help understand the dynamics of chemotactic motility in a bacterial […]

Biosynthesized fibers inspired strong and tough artificial nanocomposite fibers

Schematic illustration of the fabrication process (a), structural characterization (b) and mechanical investigation (c) of the bioinspired hierarchical helical nanocomposite fibers. Credit: Science China Press High-performance biomass-based nanocomposites are emerging as promising materials for future structural and functional applications due to their environmentally friendly, renewable and sustainable characteristics. Bio-sourced nanocelluloses (a kind of nanofibers) obtained […]

Leap toward robust binder-less metal phosphide electrodes for Li-ion batteries

Scanning electron microscope (SEM) images of Sn4P3/C composite particles (1st row:1st image), and surface of Sn4P3/C composite film fabricated by the AD process (1st row:3rd image). Corresponding elementary distributions for Sn, P, and C are also shown. Credit: (c) Toyohashi University of Technology. All Rights Reserved. Researchers at the Toyohashi University of Technology have successfully […]

Magnetic ‘springs’ break down marine microplastic pollution

Microplastic debris in cosmetics under optical microscopy. Credit: Xiaoguang Duan / Matter Plastic waste that finds its way into oceans and rivers poses a global environmental threat with damaging health consequences for animals, humans, and ecosystems. Now, using tiny coil-shaped carbon-based magnets, researchers in Australia have developed a new approach to purging water sources of […]

Bubbles hold clue to improved industrial structures

Credit: ACS Insights into how minute, yet powerful, bubbles form and collapse on underwater surfaces could help make industrial structures such as ship propellers more hardwearing, research suggests. Supercomputer calculations have revealed details of the growth of so-called nanobubbles, which are tens of thousands of times smaller than a pin head. The findings could lend […]

3-D printable 2-D materials based inks show promise to improve energy storage devices

Credit: University of Manchester For the first time, a team of researchers, from the School of Materials and the National Graphene Institute at The the University of Manchester have formulated inks using the 2-D material MXene, to produce 3-D printed interdigitated electrodes. As published in Advanced Materials, these inks have been used to 3-D print […]

Researchers tune nanowire properties with peptide ‘decorations’

In the latest paper from the Geobacter Lab led by microbiologist Derek Lovley at the University of Massachusetts Amherst, he and colleagues report “a major advance” in the quest to develop electrically conductive protein nanowires in the bacterium Geobacter sulfurreducens for use as chemical and biological sensors. Details appear in the current issue of the […]

Ne theory shows peculiar ‘Janus’ interface a common mechanism in carbon nanotube growth

Rice University researchers have determined that an odd, two-faced ‘Janus’ edge is more common than previously thought for carbon nanotubes growing on a rigid catalyst. The conventional nanotube at left has facets that form a circle, allowing the nanotube to grow straight up from the catalyst. But they discovered the nanotube at right, with a […]