For Legesse and Oxfam, the main issue with nanotechnology solutions is that they are affordable and can be replicated at a low cost in developing countries.
CNN: Nanotech and 'tea bag' to clean up drinking water
2.
"The tea bag water filter technology sounds good especially from the point of it being one step process, with out having to do any mixing, " said Nega Bazezew Legesse of Oxfam.
CNN: Nanotech and 'tea bag' to clean up drinking water