The Central Challenge: The challenge of simultaneously developing useful products for the
market, advancing the underlying science, and instituting a green nanoscience development and
deployment paradigm.
One of the most fundamental challenges particular to green nanotechnology is that the
science, the testing, the regulatory strategy, and even the processes needed for commercial
production are all being developed and deployed at the same time. From this central challenge
flow many early stage challenges that were discussed during the course of the workshop. Six
key barriers were identified (see Box 1).