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IMAGE: Magnetron-sputtering based plasma reactor used for the preparation of the photoelectrodes of titanium oxide co-doped with nitrogen and tungsten. view more  Credit: My Ali El Khakani, INRS Québec, January 15 2020 — Atrazine is one of the most widely used pesticides in North America. Researchers at the Institut National de la Recherche Scientifique (INRS) have

IMAGE: Microelectronics is a key technology of the future, which is just as important for smart factories as for intelligent power grids or autonomous driving. view more  Credit: © Oliver Wolf Whether car, smartphone or tablet, today microelectronics is found in almost every electronic device and forms the basis of the Internet of Things (IoT) in

Sponsored by ZEISS (Scanning electron microscopy division), the winners of the Department’s annual photography competition are announced as follows: First Prize Awarded to PhD candidate Elisabeth Gill for her macro photo of complex fibrous architectures that can be designed with an electrospinning and 3D printing method that Elisabeth developed for her PhD. 3D-printed support pillars

Our modern lifestyle would be immensely different without rechargeable batteries. Owing to their low-cost, recyclable technology, these batteries are used in most portable electronic devices, electric and hybrid vehicles, and renewable power generation systems. And why shouldn’t they be? They offer an elegant solution to the world’s growing energy demands. Moreover, rechargeable batteries are an

Structural colors appear because the imprinted pattern on a surface changes the wavelengths of light. Chinese scientists have introduced an azopolymer that allows the imprinting of nanopatterns in a novel room-temperature lithographic process. A key aspect of the technique is the light-induced phase change of a novel azopolymer, explains the study published in the journal

Printed circuit boards are vital components of modern electronics. However, once they have served their purpose, they are often burned or buried in landfills, polluting the air, soil and water. Most concerning are the brominated flame retardants added to printed circuit boards to keep them from catching fire. Now, researchers reporting in ACS Sustainable Chemistry

AUGUSTA, Ga. (Jan. 15, 2020) – A stroke appears to create a sticky situation inside the blood vessels of the brain that can worsen damage days, even months later, scientists report. They have found that after stroke, exosomes — nanosized biological suitcases packed with an assortment of cargo that cells swap, like proteins and fats

Graphene-based heterostructures of the van der Waals class could be used to design ultra-compact and low-energy electronic devices and magnetic memories. This is what a paper published in the latest issue of the Nature Materials journal suggests. The results have shown that it is possible to perform an efficient and tunable spin-charge conversion in these

IMAGE: Controlled breakdown (CBD) pore fabrication. view more  Credit: T.-Cossa Lab, Department of Physics, University of Ottawa A nanopore is a tiny hole in a thin membrane with a diameter of around a billionth of a meter, or about the width of a single DNA molecule. The potential applications of these nanopores are so diverse –

IMAGE: These are colloidal quantum dots operating in LED mode. view more  Credit: Los Alamos National Laboratory Los Alamos scientists have incorporated meticulously engineered colloidal quantum dots into a new type of light emitting diodes (LEDs) containing an integrated optical resonator, which allows them to function as lasers. These novel, dual-function devices clear the path towards

Many of the most challenging optimization problems encountered in various disciplines of science and engineering, from biology and drug discovery [1] to routing and scheduling [2] can be reduced to NP-complete problems. Intuitively speaking, NP-complete problems are “hard to solve” because the number of operations that must be performed in order to find the solution

It’s often the first thing we notice about a vehicle, and it reveals a lot: how new (or not) the vehicle is, how it’s been cared for, where it’s been driven.  “Consumers are extremely picky regarding the quality of the paint job on any car they purchase, new or old, and the 10- to 20-year

The fight against drug-resistant pathogens remains an intense one. While the Centers for Disease Control’s (CDC) 2019 “biggest threats” report reveals an overall decrease in drug-resistant microbe-related deaths as compared to its previous report (2013) the agency also cautions that new forms of drug-resistant pathogens are still emerging. Meanwhile, the options for treating infections by

A book is made of wood. But it is not a tree. The dead cells have been repurposed to serve another need. Now a team of scientists has repurposed living cells–scraped from frog embryos–and assembled them into entirely new life-forms. These millimeter-wide “xenobots” can move toward a target, perhaps pick up a payload (like a

A modern airplane’s fuselage is made from multiple sheets of different composite materials, like so many layers in a phyllo-dough pastry. Once these layers are stacked and molded into the shape of a fuselage, the structures are wheeled into warehouse-sized ovens and autoclaves, where the layers fuse together to form a resilient, aerodynamic shell. Now

IMAGE: Electromagnetically induced transparency (EIT) is ‘tuned’ by two particles on the optical resonator. The different locations of particles control the propagation of light in either clockwise or counterclockwise directions, which… view more  Credit: Yang Lab In the quantum realm, under some circumstances and with the right interference patterns, light can pass through opaque media. This

IMAGE: A schematic of the programmable assembly of 3-D ordered nanostructures from material voxels that can carry inorganic or organic nanoparticles with different functions, such as light emitters and absorbers, proteins,… view more  Credit: Brookhaven National Laboratory UPTON, NY–Scientists have developed a platform for assembling nanosized material components, or “nano-objects,” of very different types–inorganic or organic–into

IMAGE: PhD student Anthony Beck, co-developer of the technology, holds a chemical circuit with coloured analysis media. On the screen in the background is a microscopic image of one of the… view more  Credit: TU Dresden As part of the German government’s High-Tech-Strategy 2025, the Federal Ministry of Education and Research (BMBF) is funding an interdisciplinary

IMAGE: Golden Staph bacteria before (left) and after (right) exposure to the magnetic liquid metal nanoparticles. In the images, magnified 70,000 times, sharp pieces of liquid metal particle can be seen… view more  Credit: RMIT University Researchers have used liquid metals to develop new bacteria-destroying technology that could be the answer to the deadly problem of