Rami Hourani, Chen Zhang, Rob van der Weegen, Luis Ruiz, Changyi Li, Sinan Keten, Brett A. Helms, Ting Xu,
Processable Cyclic Peptide Nanotubes with Tunable Interiors Journal of the American Chemical Society. ,vol. 133, pp. 15296- 15299 ,(2011) ,
10.1021/JA2063082