Category Chemistry/Nanotechnology

The 3D structure of the metal-organic framework used in this study. The nanopores are represented as yellow balls. Credit: Image courtesy of KU Leuven

Metal-organic frameworks (MOFs) are a new type of materials with nanoscale pores. Bioscience engineers have now developed an alternative method that produces these materials in the form of very thin films, so that they can easily be used for high-tech applications such as microchips.

Metal-organic frameworks (MOFs) are a recently developed type of materials that consist of a nanoporous grid of both organic molecules and metal ions. MOFs take shape as the organic molecules push the metal ions apart, so that a regular pattern of tiny holes or nanopores develops. The size of the pores can be tuned at the nanoscale level...

A figure showing the crystal structure of strontium vanadate(orange) and calcium vanadate (blue). The red dots are oxygen atoms arranged in 8 octohedra surrounding a single strontium or calcium atom. Vanadium atoms can be seen inside each octahedron. Credit: Lei Zhang/Penn State

Indium tin oxide (ITO), the transparent conductor that is now used for more than 90% of the display market, has been the dominant material for the past 60 years. But in the last decade, the price of indium has increased dramatically. Displays and touchscreen modules have become a main cost driver in mobile devices, such as smartphones and tablets, making up close to 40% of the cost...

The catalyst works on bio-based ethanol to create isobutene used in plastics and other products.

Washington State University researchers have developed a catalyst that easily converts bio-based ethanol to a widely used industrial chemical, paving the way for more environmentally friendly, bio-based plastics and products. The chemical industry is interested in moving away from fossil fuels to bio-based products to reduce environmental impacts and to meet new regulations for sustainability. The catalyst works on bio-based ethanol to create isobutene used in plastics and other products.

The industry has traditionally made a widely used chemical called isobutene – used in everything from plastic soda bottles to rubber tires – by superheating crude oil...

After shaking, the oil and water in the vial separate, trapping unwanted nanomaterials in the bottom of the oil layer. Credit: Michigan Tech, Sarah Bird

Nano implies small – and that’s great for use in medical devices, beauty products and smartphones – but it’s also a problem. All these tiny particles get into our water and are difficult to remove. Now, researchers have a novel and very simple way to take the nanomaterials out. The tiny nanoparticles, nanowires, nanotubes and other nanomaterials that make up our technology eventually find their way into water. The Environmental Protection Agency says more 1,300 commercial products use some kind of nanomaterial. And we just don’t know the full impact on health and the environment.

Instead, shaking up oil and water traps the nanomaterials, ...