BBC NEWS | Health | Stem cell 'cure' boy gets tumour

BBC NEWS | Health | Stem cell 'cure' boy gets tumour

A boy who received foetal stem cells as part of a treatment regime in 2001 is now being treated for tumours centred around the injection sites. Analysis of the cells indicate that they could not have come from his own tissue, leading doctors to conclude that they arose from the stem cells used in to treat his illness. Two tumours were previously detected and removed from the injection sites in 2005. Researchers suggest that the condition originally being treated, Ataxia Telegienctasia, may have weakened his immune system and rendered him more susceptable to tomour formation.

Sun-powered device converts CO2 into fuel - tech - 18 February 2009 - New Scientist

Sun-powered device converts CO2 into fuel - tech - 18 February 2009 - New Scientist

Researchers at Pennsylvania State University have developed a device composed of titanium dioxide nanotubes coated with copper and platinum that is able to convert carbon dioxide and water into methane using only solar energy. The conversion rate is still far too low to make the process commercializable, but is a 20 faster higher than previous approaches. They expect that they can increase the conversion rate by up to 2 orders of magnitude by tweaking the process.