This article argues that advances in nanotechnology in general, and lab-on-chip technology in particular, have the potential to benefit the developing world in its quest to control risks to human health and the environment. Based on the "risk society" thesis of Ulrich Beck, it is argued that the developed world must realign its science and technology policy priorities to meet some of the most pressing needs of humanity. (Contains 1 table, 1 figure and 4 notes.)