How to make bright quantum dots even brighter

Quantum dots are a kind of artificial atom: just a few nanometers in size and made of semiconductor materials, they can emit light of a specific color or even single photons, which is important for quantum technologies. The ...

Aquatic animals can help purify our wastewater, says researcher

Aquatic creatures may help purify our wastewater. A team of researchers has investigated how invertebrates, such as worms, non-biting midge larvae and mussels that live on the bottom of streams and ditches, may benefit wastewater ...

Cleaning water with 'smart rust' and magnets

Pouring flecks of rust into water usually makes it dirtier. But researchers have developed special iron oxide nanoparticles they call "smart rust" that actually makes it cleaner. Smart rust can attract many substances, including ...

Keeping water-treatment membranes from fouling out

When you use a membrane for water treatment, junk builds up on the membrane surface—a process called fouling—which makes the treatment less efficient. In a new study, published in the Journal of Membrane Science, researchers ...

Confirmed: Global floods, droughts worsening with warming

The intensity of extreme drought and rainfall has "sharply" increased over the past 20 years, according to a study published Monday in the journal Nature Water. These aren't merely tough weather events, they are leading to ...

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