Nanotechnology must be effectively shared with stakeholders if it's to deliver clean water, say Thembela Hillie and Mbhuti Hlophe.

Engineering a useable product is the key to making nanotechnology work for water treatment, says Ashok Raichur.

Developing world businesses must invest in nanotech research and development for clean water to stay ahead, says Mohamed Abdel-Mottaleb.

Developing countries are making good progress on nanotech for clean water, say Paulo Sergio de Paula Herrmann Jr. and José Antônio Brum.

Emerging nanotech for purifying water at this stage should be regulated with existing laws, say Malini Balakrishnan and Nidhi Srivastava.

Nanotechnology could help make drinking water safe, but the risks have to be weighed, say Thembela Hillie and Mbhuti Hlophe.