Spectral Transition in Bio-Inspired Self-Assembled Peptide Nucleic Acid Photonic Crystals.

Or Berger, Eyal Yoskovitz, Lihi Adler-Abramovich, Ehud Gazit,

Advanced materials (Deerfield Beach, Fla.), January 18, 2016

The self-assembly of guanine-based peptide nucleic acid monomers into photonic crystals is described. A highly reflective lattice of guanine nanocrystals is found in the skin and ocular tissues of different species providing vivid structural colors. The fabricated guanine-based supramolecular structures respond to changes in osmolarity similar to the active spectral change mechanism employed by chameleons.

© 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Pubmed Link: 26779770

DOI: 10.1002/adma.201504160