Biomimetic gyroid nanostructures exceeding their natural origins
Zongsong Gan1, Mark D. Turner1 and Min Gu1,2,3,*
+ Author Affiliations
↵*Corresponding author. Email: min.gu@rmit.edu.au
Science Advances 13 May 2016:
Vol. 2, no. 5, e1600084
Abstract
Using optical two-beam lithography with improved resolution and enhanced mechanical strength, we demonstrate the replication of gyroid photonic nanostructures found in the butterfly Callophrys rubi. These artificial structures are shown to have size, controllability, and uniformity that are superior to those of their biological counterparts. In particular, the elastic Young’s modulus of fabricated nanowires is enhanced by up to 20%. As such, the circular dichroism enabled by the gyroid nanostructures can operate in the near-ultraviolet wavelength region, shorter than that supported by the natural butterfly wings of C. rubi. This fabrication technique provides a unique tool for extracting three-dimensional photonic designs from nature and will aid the investigation of biomimetic nanostructures.
Keywords Gyroid nano-structures optical two-beam lithography biomimetics mechanical strength circular dichroism
Copyright © 2016, The Authors
This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial license, which permits use, distribution, and reproduction in any medium, so long as the resultant use is not for commercial advantage and provided the original work is properly cited.
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PERGUNTA DESTE BLOGGER:
Ué, procurando design, finalidade na natureza? Mas o Dawkins não disse que o design encontrado na natureza é ilusão? E não dizem também que Darwin eliminou a teleologia da Biologia de uma vez por todas??? Então por que procurar design numa ilusão? Por que buscar finalidade, se não existe isso na natureza???
Fui, nem sei por que, pensando que a rejeição de design na ciência se dá muito mais por razões subjetivas/ideológicas do que realmente uma rejeição científica.
