Scientific Reports 2, Article number: 849 (2012); Published: 14 November 2012; Updated: 8 March 2013

The authors regret that previous work reporting the production of aerogels from nanotubes was not properly acknowledged and cited in our paper. These references appear below1,2,3. Reference 1 was referenced in the published paper (reference 29), but was only cited to compare the aerogel properties instead of acknowledging what has already been studied.