The addition of carbon nanotubes to the SIN (‘Substitute It Now’) list has evoked reactions from nanomedicine and nanotoxicology researchers, who ask for a fairer and more recent research-based risk assessment of carbon nanotubes.

An amendment to this paper has been published and can be accessed via a link at the top of the paper.

Chris Toumey explores the way in which reactions to nanotechnology from different religious denominations can be translated to other emerging technologies.

We reflect on the major role played by Nano Letters in nanoscience and nanotechnology and celebrate the appointment of its new editor-in-chief.