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“#Anti-reflective coating inspired by fly eyes” The eye is made up of many facets, which are themselves covered by a thin layer of protuberances a few tens of nanometres high. 1 micrometer (mm) = 1000 nanometers (nm). Credit: © UNIGE The eyes of many insects, including the fruit fly, are covered by a thin, transparent…
“#Harnessing DNA molecules for disease detection and electronics” Illustration of Porath’s experiment showing a DNA molecule, through which an electric current is flowing, that is bound by two nanoparticles (orange circles) to the electrodes (yellow). Credit: Hebrew University DNA molecules express heredity through genetic information. However, in the past few years, scientists have discovered that…
“#New on/off functionality for fast, sensitive, ultra-small technologies” Bright-field microscopy image of a VO2 chevron-type planar actuator. Superposition in false color of the tip of the shuttle at low and high temperature. Bar, 1μm. Credit: Osaka University How do you turn on and off an ultra-small component in advanced technologies? You need an actuator, a…
“#Single atom-thin platinum makes a great chemical sensor” Researchers at Chalmers University of Technology, Sweden, together with colleagues from other universities, have discovered the possibility to prepare one-atom thin platinum for use as a chemical sensor. The results were recently published in the scientific journal Advanced Material Interfaces. A schematic of platinum atoms deposited on…
“#Nano-microscope gives first direct observation of the magnetic properties of 2-D materials” New nano-microscope opens door to new materials and technology. Credit: David A. Broadway Australian researchers and their colleagues from Russia and China have shown that it is possible to study the magnetic properties of ultrathin materials directly, via a new microscopy technique that…
“#More laser power allows faster production of ultra-precise polymeric parts across 12 orders of magnitude” Credit: UpNano A high-power laser, optimized optical pathway, a patented adaptive resolution technology, and smart algorithms for laser scanning have enabled UpNano, a Vienna-based high-tech company, to produce high-resolution 3-D-printing as never seen before. “Parts with nano- and microscale resolution…
“#Peel-apart surfaces drive transistors to the ledge” This cross-section view shows the long and monolayer MoS2 nanoribbon on top of the ledge of Ga2O3 substrate. Credit: 2020 KAUST Semiconductor manufacturers are paying more attention to two-dimensional materials, such as transition metal dichalcogenides (TMDs), following the discovery, at KAUST, of an epitaxial growth process of single-crystal…
“#Producing technicolor through brain-like electronic devices” Experimental results of micro-sized color printing. The device consists of four layers including top and bottom layers of Ag surrounding IGZO and SiO2 layers. The color pixels were fabricated by an FIB process after the deposition of a 180 nm thick SiO2 layer. Credit: Junsuk Rho (POSTECH) Structural coloration…
“#A tiny instrument to measure the faintest magnetic fields” (a) A conventional superconducting quantum interference device (SQUID) consists of a superconducting ring interrupted at two points by weak links (in this case a graphene layer). (b) The new SQUID is made up of a stack of two-dimensional materials, including two graphene layers separated by a…
“#A spicy silver lining” Silver nanoparticles are synthesized with the help of the spicy habanero pepper. From the Journal of Nanophotonics, doi 10.1117/1.JNP.14.036012. Credit: SPIE Distinctive thermal and electrical characteristics make silver nanoparticles perfect for optics and biosensing applications. One increasingly popular application for the nanoparticles is as an antibacterial coating. Silver nanoparticle coatings are…