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[Due to the increasing size of the archives, each topic page now contains only the prior 365 days of content. Access to older stories is now solely through the Monthly Archive pages or the site search function.]

Researchers find magnetite nanoparticles similar to those from traffic pollution in brain; possible link with Alzheimer’s

September 06, 2016

Researchers from the UK, Mexico and the US have found abundant magnetite nanoparticles in the brain tissue from 37 individuals aged three- to 92-years-old who lived in Mexico City and Manchester, UK. This strongly magnetic mineral has been implicated in the production of reactive oxygen species (free radicals) in the human brain, which are associated with neurodegenerative diseases including Alzheimer’s disease (e.g., Hautot et al. 2003). Their paper is being published in Proceedings of the National Academy of Sciences (PNAS).

Professor Barbara Maher, from Lancaster Environment Centre, and colleagues (from Oxford, Glasgow, Manchester and Mexico City) used spectroscopic analysis to identify the particles as magnetite. Unlike angular magnetite particles that are believed to form naturally within the brain (i.e., biogenic), most of the observed particles were spherical, with diameters up to 150 nm, some with fused surfaces, all characteristic of high-temperature formation—such as from vehicle (particularly diesel) engines or open fires.

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Chempolis partners with Avantha Group on cellulosic ethanol in India

December 29, 2015

Chempolis Limited, a Finland-based biorefining technology corporation, has entered into partnership with India-based Avantha Group’s research wing—Avantha Centre for Industrial Research & Development (ACIRD)—on technology to produce ethanol from various agricultural residues for fuel blending.

India’s agricultural sector produces large amounts of bagasse, cane trash, rice and wheat straw the disposal of which is an environmental problem. The partnership will help to deliver biorefining technology to India to convert biomass waste to clean sugars to be further converted to cellulosic ethanol and other bio-based chemicals.

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Intelligent Energy announces US$1.8B deal for ~27K telecom towers in India; fuel cell power for ~70%; landmark in fuel cell deployment

October 04, 2015

UK-based fuel cell developer Intelligent Energy will purchase contracts from GTL Limited to supply energy-management services across more than 27,400 telecom towers in India—about 6.4% of the country’s total. Essential Energy, a subsidiary of Intelligent Energy in India, will assume the power management for the towers—a figure equivalent to 50% of the UK’s telecom towers and 13% of the US’. Essential Energy intends to transition around 70% of the managed telecom towers from diesel power to hydrogen fuel cells throughout their contracts’ tenure.

The transaction delivers contracted revenues of approximately £1.2 billion (US$1.8 billion) over ten years—a major development for Intelligent Energy and the industry, said Henri Winand, CEO of Intelligent Energy Holdings. The landmark deal also represents a major milestone in hydrogen fuel cell deployment.

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