Difference between revisions of "Structure, Function, and Self-Assembly of Single Network Gyroid (I4132) Photonic Crystals in Butterfly Wing Scales"

From Soft-Matter
Jump to: navigation, search
Line 9: Line 9:
  
 
== Overview ==
 
== Overview ==
 +
Small angle X-ray scattering (SAXS) was used to identify the 3D photonic nanostructures (made of chitin and air) of five butterfly species from two families (Papilionidae, Lycaenidae) as single network gyroid (<math>I4_132</math>) photonic crystals. Photonic band-gap modeling was also performed. Butterflies first develop thermodynamically favored double gyroid precursors and transform these into a single gyroid network which is optically more efficient.
  
 
== Results and Discussion ==
 
== Results and Discussion ==
 +
 +
 +
 
[[Image:Saranathan 1.png|600px|thumb|left|'''Fig. 1''' ]]  
 
[[Image:Saranathan 1.png|600px|thumb|left|'''Fig. 1''' ]]  
 
[[Image:Saranathan 2.png|600px|thumb|left|'''Fig. 2''' ]]  
 
[[Image:Saranathan 2.png|600px|thumb|left|'''Fig. 2''' ]]  

Revision as of 02:48, 5 October 2010

Birgit Hausmann

Reference

V. Saranathan et. al. "Structure, Function, and Self-Assembly of Single Network Gyroid (I4<math>_1</math>32) Photonic Crystals in Butterfly Wing Scales" Proc. Nat. Acad. Sci., 107, 11676-11681 (2010)

Keywords

biological meta-materials, organismal color, biomimetics, biological cubic mesophases


Overview

Small angle X-ray scattering (SAXS) was used to identify the 3D photonic nanostructures (made of chitin and air) of five butterfly species from two families (Papilionidae, Lycaenidae) as single network gyroid (<math>I4_132</math>) photonic crystals. Photonic band-gap modeling was also performed. Butterflies first develop thermodynamically favored double gyroid precursors and transform these into a single gyroid network which is optically more efficient.

Results and Discussion

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5