Morpho butterfly wing scales demonstrate highly selective vapour response

Potyrailo, Radislav A.; Ghiradella, Helen; Vertiatchikh, A.; Dovidenko, K.; Cournoyer, James R.; Olson, Eric R.

doi:10.1038/nphoton.2007.2

Cited by 533 publications

(513 citation statements)

References 43 publications

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“…These materials exhibit brilliant colours that are derived from their hierarchically organized structures and are resistant to photobleaching 7 . Furthermore, they can rapidly shift colours on exposure to chemical vapours due to structural and/or refractive index changes 15 . Therefore, both structurally coloured materials in nature and their synthetic analogues are being explored as simple and portable colourimetric sensor platforms [16][17][18][19][20][21] .…”

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confidence: 99%

Biomimetic virus-based colourimetric sensors

et al. 2014

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Many materials in nature change colours in response to stimuli, making them attractive for use as sensor platform. However, both natural materials and their synthetic analogues lack selectivity towards specific chemicals, and introducing such selectivity remains a challenge. Here we report the self-assembly of genetically engineered viruses (M13 phage) into targetspecific, colourimetric biosensors. The sensors are composed of phage-bundle nanostructures and exhibit viewing-angle independent colour, similar to collagen structures in turkey skin. On exposure to various volatile organic chemicals, the structures rapidly swell and undergo distinct colour changes. Furthermore, sensors composed of phage displaying trinitrotoluene (TNT)-binding peptide motifs identified from a phage display selectively distinguish TNT down to 300 p.p.b. over similarly structured chemicals. Our tunable, colourimetric sensors can be useful for the detection of a variety of harmful toxicants and pathogens to protect human health and national security.

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confidence: 99%

Biomimetic virus-based colourimetric sensors

et al. 2014

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“…This sensor changes its color from blue to red at high humidity; however, it is yet unselective to the carrier gas. Potyrailo et al discovered that the nanostructure of Morpho butterfly wings indicates a high-performance optical gas sensor with a highly selective response [89]. The biomimetic approach is difficult, yet rather interesting for industrial applications, and the nanostructured organization of living creatures such as butterflies and beetles may open new approaches to the design of complex photonic functions [16,90].…”

Section: Discussionmentioning

confidence: 99%

Tunable structural color in organisms and photonic materials for design of bioinspired materials

Fudouzi

2011

Science and Technology of Advanced Materials

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In this paper, the key topics of tunable structural color in biology and material science are overviewed. Color in biology is considered for selected groups of tropical fish, octopus, squid and beetle. It is caused by nanoplates in iridophores and varies with their spacing, tilting angle and refractive index. These examples may provide valuable hints for the bioinspired design of photonic materials. 1D multilayer films and 3D colloidal crystals with tunable structural color are overviewed from the viewpoint of advanced materials. The tunability of structural color by swelling and strain is demonstrated on an example of opal composites.

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“…As the sum |α n |<|k| (1/ 1 + (2π n/d) 2 ) is finite and bounded by a constant. We can estimate this constant as follows:…”

Section: Dual Problemmentioning

confidence: 99%

“…Such periodic structures also occur naturally in the Morpho butterfly wing. The iridescent scales of this butterfly display a different optical response to the presence of different vapours [2]. The information about the nature and concentration of the vapours provided by the reflectance spectra of the scales has therefore been proposed as a design for a gas sensor.…”

Section: Introductionmentioning

confidence: 99%

A dual weighted residual method applied to complex periodic gratings

Lord

Mulholland²

2013

Proc. R. Soc. A.

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An extension of the dual weighted residual (DWR) method to the analysis of electromagnetic waves in a periodic diffraction grating is presented. Using the α,0-quasi-periodic transformation, an upper bound for the a posteriori error estimate is derived. This is then used to solve adaptively the associated Helmholtz problem. The goal is to achieve an acceptable accuracy in the computed diffraction efficiency while keeping the computational mesh relatively coarse. Numerical results are presented to illustrate the advantage of using DWR over the global a posteriori error estimate approach. The application of the method in biomimetic, to address the complex diffraction geometry of the Morpho butterfly wing is also discussed.

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Morpho butterfly wing scales demonstrate highly selective vapour response

Cited by 533 publications

References 43 publications

Biomimetic virus-based colourimetric sensors

Biomimetic virus-based colourimetric sensors

Tunable structural color in organisms and photonic materials for design of bioinspired materials

A dual weighted residual method applied to complex periodic gratings

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