Turning wastewater sludge into energy and mineral salts

A system developed by EPFL spin-off TreaTech can turn sludge from wastewater treatment plants into mineral salts – which could be used in fertilizer, for example – and biogas. The firm's research is being funded by several ...

Dual-action 'slippery' catheter fights bacteria

A super-slippery coating being developed at a University of Wisconsin–Madison lab could benefit medical catheters, factory equipment, and even someday, oil tankers.

Why we always spill tea

Who has never spilled water, tea or wine while pouring it? Pouring liquids is difficult because they tend to cling to the bottle or the teapot spout rather than flowing directly into your cup or glass. A team of scientists ...

Location is everything for plant cell differentiation

While the fate of most human cells is determined by their lineage—for example, renal stem cells go on to form the kidney while cardiac progenitor cells form the heart—plant cells are a little more flexible. Research shows ...

Saving energy in the production of chemicals

Whether in agriculture, industry or private households, chemicals are needed everywhere. However, their production requires a very large amount of energy. With a new type of hybrid access, energy can be saved in the double-digit ...

Iceland turns carbon dioxide to rock for cleaner air

In the heart of Iceland's volcano country, 21st-century alchemists are transforming carbon dioxide into rock for eternity, cleaning the air of harmful emissions that cause global warming.

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