Aug 30, 2023 (Nanowerk News) Writing is an age-old cultural technique. Thousands of years ago, humans were already carving signs and symbols into stone slabs. Scripts have become far more sophisticated since then but one aspect remains the same: Whether the writer is using cuneiform or a modern alphabet, a...
Organic nanosensors may be able to detect harmful pesticides
Aug 30, 2023 (Nanowerk News) Researchers at Concordia have developed a new system using tiny nanosensors called carbon dots to detect the presence of the widely used chemical glyphosate. The findings are published in Sensors ("Ratiometric Sensing of Glyphosate in Water Using Dual Fluorescent Carbon Dots"). Glyphosate is a pesticide...
Paving the way for advanced quantum sensors
Aug 30, 2023 (Nanowerk News) Quantum physics has allowed for the creation of sensors far surpassing the precision of classical devices. Now, several studies in Nature show that the precision of these quantum sensors can be significantly improved using entanglement produced by finite-range interactions. Innsbruck researchers led by Christian Roos...
Vision for future micro-optical technology based on metamaterials
Aug 30, 2023 (Nanowerk News) Metasurfaces are artificial materials adept at manipulating. With metasurfaces allowing for lenses to be reduced to one 10,000th the size of conventional lenses, they are generating considerable interest as optical components allowing miniaturization of optical systems for the next generation of virtual and augmented reality...
Ancient art meets nanotechnology in nanoscale goldbeating
Aug 29, 2023 (Nanowerk News) Goldbeating, an age-old craft pioneered by ancient Egyptian artisans more than five millennia ago, involves the meticulous thinning of bulk gold into gossamer-like leaves. Throughout history, this intricate process has adorned various masterpieces, such as the tombs of Thebes and Saqqara, and has cemented its...