Fig. 5: Retardation and birefringence of spider dragline silk fibers. | Communications Materials

Fig. 5: Retardation and birefringence of spider dragline silk fibers.

From: Simultaneous effect of strain rate and humidity on the structure and mechanical behavior of spider silk

Fig. 5

a Optical micrographs and retardation color mapping of spider dragline silk fibers incubated at (i) RH0%, (ii) RH43%, (iii) RH75%, and (iv) RH97%. Each scale bar denotes 30 µm. The retardation values ranged from 0 to 200 nm, as shown in the color scale. b Birefringence value as a function of RH. *Significant differences between groups at p < 0.05.

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