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Fig. 4 | Applied Microscopy

Fig. 4

From: Melanin-based structural coloration of birds and its biomimetic applications

Fig. 4

Melanin as an absorbing material of broadband visible wavelengths for coloration. (a) Amorphous melanosomes in the blue barb of the Steller’s jay and the barbule of the rock dove’s (domestic pigeon) feathers. (Scale bars: 2 μm). Steller’s Jay, image reproduced under CC BY license. Photograph by Noel Reynolds. Feather microstructure of a blue Steller’s Jay feather, image reproduced with permission (Shawkey and Hill 2006). Copyright 2006, The Company of Biologists Ltd. Rock Dove, image reproduced under CC BY license. Photograph by Diego Delso. Feather microstructure of a Rock Dove feather, image reproduced under CC BY license (Yoshioka et al. 2007). Copyright 2007, The Authors. Published by The Physical Society of Japan. (b) Matte black color from the barbule of the California quail’s feather and glossy black color from the barbule of the common raven. (Scale bars: 2 μm). Reproduced with permission (Maia et al. 2011). Copyright 2010, The Royal Society

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