Author Archives: David Bradley

It’s an arsenic Life

February 5, 2013 – 8:08 am

Carmen Drahl of C&EN Storifies #arseniclife

Now public - the peer review exchange for the controversial and now disproved 2010 paper that claimed a bacterium weaved arsenic into its DNA and biomolecules. USA Today reporter Dan Vergano and the papers investigative team obtained the reviewer comments from NASA through a Freedom of Information Act request. Scientists and journalists had heated discussions about what to take away from the new information, and about whether the whole saga came down to honest mistakes.

via Arsenic-based life paper: peer review process comes to light #arseniclife with tweets · carmendrahl · Storify.

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Alchemist Newsletter

January 27, 2013 – 4:32 pm

The Alchemist learns of new superomniphobic materials this week that almost make the proverbial duck's back look sticky as they repel every liquid so far tested not just water. In environmental news, weighing up the toxic metals against the power savings for "green" lightbulbs while polymer chemists are mimicking mussels to make things stick. In the world of biofuels, Indian scientists suggest that tree seeds might be the most sustainable feedstock, while Swiss researchers boost solar energy efficiency with a new application of semiconductor. Finally, a "Nobel Prize" for two geo scientists.

via The Alchemist Newsletter:Jan 23, 2013 — Welcome to ChemWeb.

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Casting a shadow over green lightbulbs

January 17, 2013 – 4:18 pm

Environmental concerns centred on limiting carbon emissions have led regulators to push consumers towards low-power CFLs (compact fluorescent light bulbs) and LEDs (light emitting diodes), rather than incandescent bulbs that are little changed since their invention more than 100 years ago. However, new research suggests that the environmental legacy of the toxic metals in CFLs and LEDs, including copper, lead, mercury and zinc, needs to be given greater consideration by policymakers formulating strategies to cut energy use.

via Casting a shadow over green light bulbs | Chemistry World.

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