picture (IMAGE) University of Southern Denmark Caption Illustration from the Scientific Reports paper: Schematic representation (not to scale) of the proposed structure of a spider silk fibre as found in the present work. (A) Fibre side view, (B) cross section through fibre. An outer, non-conductive lipid rich layer (green) of between 0.6 to 1 µm thickness, two conductive, inner autofluorescent protein layers: one which FITC shows higher affinity towards (blue), and another Rhodamine B shows a higher affinity towards (orange). The inner protein core consists of crystalline fibrils, aligned parallel to the long axis of the fibre, surrounded by more amorphous protein regions. Credit Iachina/Brewer, University of Southern Denmark. Usage Restrictions w credit License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.