Glorious graphene

MATERIALS CHEMISTRY

The paradoxical observation “less is more” applies perfectly to carbon, for if you think coal and diamonds are valuable, just wait to get your hands on a little bit of...

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Ancient bat guano provides­ historic record of changes to chemical composition of air

ENVIRONMENTAL CHEMISTRY

At first glance, you might regard a Jamaican cave that has been continuously inhabited by bats for thousands of years as one of the last places to learn how the chemical content of regional air and water have been changing. But for Jules Blais, a biologist with the University of Ottawa, the countless strata of guano deposited there by these animals provide an ideal record of this information. Blais specializes in gauging the influence of environmental contaminants on the metabolism...

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A new gold standard of healing with crystalline polymers

NANOTECHNOLOGY

How convenient it would be if we could convince a torn piece of material to return to its undamaged state. Université de Sherbrooke chemist Yue Zhao has been able to purchase just such convenience with some vanishingly small amounts of gold. The substance in question is gold nanoparticles or nanorods, which are inserted into a thin...

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Testing for banned substances in athletes ups its game

ANALYTICAL CHEMISTRY

Just as athletes commit to becoming faster and stronger than ever, so too do the authorities testing these competitors for banned substances. For just that reason, the World Anti-Doping Agency has supported the work of chemist Janusz Pawliszyn of the University of Waterloo in Ontario, who has shown how to make the organization’s testing regime more efficient than ever before.

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