A team of researchers has developed a smartphone attachment and application to test water for the presence of mercury, a toxic heavy metal. The new platform could significantly reduce the time and cost of the testing, and it could be particularly useful in regions with limited technological resources………
http://www.nanomagazine.co.uk/index.php?option=com_content&view=article&id=2397:research-team-develops-rapid-smartphone-based-mercury-testing-and-mapping&catid=38:nano-news&Itemid=159
