Scanning electron microscopy of a CT domain fiber bundle. a) and b) Surface analysis of the CT fibers show oriented striated-like silk morphology and length similar to that of 4RepCT fibers from previous studies. c) The micrograph of the interior core of a fractured CT fiber. The fibrillar structures are comparable with previous SEM analysis of recombinant silk and natural silk.

METHODS
The CT fibers were placed on top of conductive carbon tape and coated with 20 nm of gold through metal evaporation (ProvacPAK 600 Coating System, Germany). The samples were then imaged using SEM (Gemini Ultra 55, Zeiss, Germany).



FILE FORMAT
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