Microscopic images of p6P nanofibre. (a) Epifluorescence image (365-nm UV excitation) of an isolated p6P nanofibre. (b) AFM image of the same fibre, denoting typical dimensions: width, 550 nm; height, 50 nm; and length, 25 μm. Inset: AFM image of an individual fibre. Note the breaks along the fibres' long axis as well as the characteristic step edges, which indicate the crystalline nature of the material.
Johansen et al. Nanoscale Research Letters 2012 7:262 doi:10.1186/1556-276X-7-262