Hard to say if this solution will be cheaper than the bordering-on-free LifeStraw, but a team at the University of South Australia has developed a low-cost method for removing bacteria and other contaminants from water "using tiny particles of pure silica coated with an active nano-material." Professor Peter Majewski is pretty proud of the all new system, stating that it can "remove bacteria, chemicals, viruses and other contaminants from water much more effectively than conventional water purification methods." Due to its ability to function sans additional energy and its low overall cost, the team is hoping to see the creation bring clean water to developing countries. The best part? It should be available within two years.
[Via Protein OS]