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Virus-templated self-assembled single-walled carbon nanotubes for highly efficient electron collection in photovoltaic devices

Mon, 19 Sep 2011 00:00:00 -0700

Nature - By Xiangnan Dang, Hyunjung Yi, Moon-Ho Ham, Jifa Qi, Dong Soo Yun, Rebecca Ladewski, Michael S. Strano, Paula T. Hammond , Angela M. Belcher - Sep. 19 (Special Report) - we report the synthesis of single-walled carbon nanotube–TiO2 nanocrystal core–shell nanocomposites using a genetically engineered M13 virus as a template. By using the nanocomposites as photoanodes in dye-sensitized solar cells, we demonstrate that even small fractions of nanotubes improve the power conversion efficiency by increasing the electron collection efficiency.

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Misconceptions about forest-dwellers overturned

Wed, 15 Jun 2011 00:00:00 -0700

Nature - By Natasha Gilbert - Jun. 15 (News) -

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Sustainable management of tropical forests has a long way to go

Wed, 08 Jun 2011 00:00:00 -0700

Nature - By Anjali Nayar - Jun. 08 () -

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Fukushima deep in hot water

Tue, 07 Jun 2011 00:00:00 -0700

Nature - By Geoff Brumfiel, David Cyranoski - Jun. 07 (News) - In the first hours of March's accident at the Fukushima Daiichi nuclear power plant, workers rushed to flood three damaged reactors with sea water to prevent a catastrophic meltdown. Three months later, water is still being pumped into the cores and has become the biggest obstacle to cleaning up the site.

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Oil spills underreported in Mexican Gulf

Thu, 21 Apr 2011 00:00:00 -0700

Nature - By Melissa Gaskill - Apr. 21 (News) -

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Puzzle persists for 'degradeable' plastics

Thu, 21 Apr 2011 00:00:00 -0700

Nature - By Daniel Cressey - Apr. 21 (News) - Eco-friendly plastics disintegrate, but might just linger in the environment.

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Deepwater Horizon: one year on

Tue, 19 Apr 2011 00:00:00 -0700

Nature - By Melissa Gaskill - Apr. 19 (Special Report) - What is the state of the Gulf of Mexico one year after the Deepwater Horizon blowout began?

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Money not the problem in US climate debate

Tue, 19 Apr 2011 00:00:00 -0700

Nature - By David Adam - Apr. 19 (News) - Environmental groups matched opponents' spending power during arguments over cap-and-trade legislation, report claims.

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'Blue carbon' plan takes shape

Mon, 21 Feb 2011 00:00:00 -0800

Nature - By Gayathrhi Vainyanathan - Feb. 21 (News) - Mangroves and seagrasses could be protected by valuing the carbon they store

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Arctic Ocean feels the heat

Thu, 27 Jan 2011 00:00:00 -0800

Nature - By Nicola Jones - Jan. 27 (News) - Inflow from the Atlantic is warmest in 2,000 years

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Double whammy for HIV

Wed, 19 Jan 2011 00:00:00 -0800

Nature - By Cassandra Willyard - Jan. 19 (News) - RNA dynamic duo curbs infection in mice

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Wastewater chemicals dampen fish fervour

Fri, 12 Nov 2010 00:00:00 -0800

Nature - By Richard Lovett - Nov. 12 (News) - Pharmaceuticals and household chemicals in rivers and streams may be affecting how fish mate and spawn, scientists warn, even when the substances are not present at levels high enough to cause visible damage.

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Weapons research crosses the Channel

Thu, 04 Nov 2010 00:00:00 -0700

Nature - By Geoff Brumfiel - Nov. 04 (News) - Nuclear-weapons data is among the most closely guarded information there is. But in the wake of a major defence agreement, it seems that crucial data needed to maintain the nuclear stockpiles of both the United Kingdom and France will be coming from a single shared facility.

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How to beat the media in the climate street fight

Wed, 03 Nov 2010 00:00:00 -0700

Nature - By Simon L. Lewis - Nov. 03 (Opinion) - Researchers must take a more aggressive approach to counter shoddy journalism and set the scientific record straight, says Simon L. Lewis.

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Superconductors come of age

Fri, 08 Oct 2010 00:00:00 -0700

Nature - By Joseph Milton - Oct. 08 (News) - Almost 100 years after Dutch physicist Heike Kamerlingh Onnes found that mercury has an electrical resistance of zero when cooled in liquid helium, superconductors are finally being rolled out for use in national electricity grids.

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How to avert a global water crisis

Mon, 04 Oct 2010 00:00:00 -0700

Nature - By Natasha Gilbert - Oct. 04 (Interview) - If current trends continue, global annual water usage is set to increase by more than 2 trillion cubic metres by 2030, rising to 6.9 trillion cubic metres: 40% more than can be provided by available water supplies. Without immediate action to improve the monitoring and management of existing water resources, and in particular to reform water use in agriculture, the world will face a water crisis.

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Key ingredient staves off marijuana memory loss

Fri, 01 Oct 2010 00:00:00 -0700

Nature - By Arran Frood - Oct. 01 (News) - Smoking cannabis has long been associated with poor short-term memory, but a study now suggests that the strain of cannabis makes all the difference.

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Climate change: Our emissions obsession

Wed, 29 Sep 2010 00:00:00 -0700

Nature - By Daniel Greenberg - Sep. 29 (Review) - Roger Pielke Jr is a righteous scold at the intersection of politics and climate-change science. Prominent researchers and the organizations concerned with climate change are the object of his ire in The Climate Fix, in which he argues that they have presented a narrow scientific message to rouse politicians and the public to confront the dangers of global warming.

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Quantum computers move a step closer

Wed, 29 Sep 2010 00:00:00 -0700

Nature - By Eugenie Samuel Reich - Sep. 29 (News) - Successes at entangling three-circuit systems brighten the prospects for solid-state quantum computing.

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Pakistan's floods: is the worst still to come?

Sat, 14 Aug 2010 00:00:00 -0700

Nature - By Kate Larkin - Aug. 14 (Special Report) - It is over two weeks since the floods began in Pakistan, and the rains are still falling. Already termed the worst flooding to hit Pakistan for 80 years, this deluge has affected millions of people, and so far over 1,600 have died.

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France Digs Deep for Nuclear Waste

Tue, 10 Aug 2010 00:00:00 -0700

Nature - By Declan Butler - Aug. 10 (News Report) - [H]alf a kilometre beneath rolling wheat fields outside the small town of Bure in northeast France, the country is preparing to dispose of its radioactive waste. In a €1-billion (US$1.3 billion) underground laboratory, the French National Radioactive Waste Management Agency (ANDRA) is testing the soundness of the rock and the technologies to contain the waste.

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Upbeat oil report questioned

Tue, 10 Aug 2010 00:00:00 -0700

Nature - By Mark Schrope - Aug. 10 (News Report) - Bill Lehr, a senior scientist with NOAA's emergency-response division and a lead author of the report, agrees that these are the least certain numbers, but says that he and his colleagues intentionally used conservative estimates. Yet neither the report nor its supporting data mention the scale of the uncertainties, and there are scant details about how the numbers were calculated.

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GM crop escapes into the American wild \

Fri, 06 Aug 2010 00:00:00 -0700

Nature - By Natasha Gilbert - Aug. 06 (News Report) - Transgenic canola is growing freely in parts of North Dakota, researchers told the Ecological Society of America conference in Pittsburgh, Pennsylvania, today.

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US seeks solar flair for fuels

Tue, 27 Jul 2010 00:00:00 -0700

Nature - By Jeff Tollefson - Jul. 27 (News Report) - The US Department of Energy has launched an 'artificial photosynthesis' initiative with the ambitious goal of developing, scaling up and ultimately commercializing technologies that directly convert sunlight into hydrogen and other fuels.

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First light for Solar Dynamics Observatory

Sat, 24 Jul 2010 00:00:00 -0700

Nature - By Richard Lovett - Jul. 24 (News Report) - Astronomers seeking to predict solar storms are receiving the first trickles of a wealth of new data, scientists reported this week at a meeting of the Committee on Space Research in Bremen, Germany.

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