Toward bioinspired nanostructures for selective vapor sensing: diverse vapor-induced spectral responses within iridescent scales of Morpho butterflies

2014 ◽  
Vol 1621 ◽  
pp. 197-207 ◽  
Author(s):  
Timothy A. Starkey ◽  
Peter Vukusic ◽  
Radislav A. Potyrailo
Keyword(s):  
Experimental Evaluation ◽  
Photonic Structures ◽  
Vapor Sensing ◽  
New Ideas ◽  
Spectral Responses ◽  
Wing Scales

ABSTRACTThe iridescent colors of Morpho butterflies have captured scientific intrigue for over a century. However, only recently photonic structures of the wing scales of Morpho butterflies have inspired new ideas in the diverse areas of technology including sensing. In this study, we performed theoretical and experimental evaluation of vapor-induced reflectance changes of the Morpho scales. These experiments provided additional details of the origin and the magnitude of vapor response selectivity in these natural photonic nanostructures and facilitated our design and fabrication of highly selective biomimetic photonic nanostructures.

Temperature and saturation dependence in the vapor sensing of butterfly wing scales

2014 ◽  
Vol 39 ◽  
pp. 221-226 ◽  
Author(s):  
K. Kertész ◽  
G. Piszter ◽  
E. Jakab ◽  
Zs. Bálint ◽  
Z. Vértesy ◽  
...  
Keyword(s):  
Butterfly Wing ◽  
Vapor Sensing ◽  
Wing Scales

scholarly journals Orientation-Dependent Reflection of Structurally Coloured Butterflies

Biomimetics ◽  
2020 ◽  
Vol 5 (1) ◽  
pp. 5
Author(s):  
Sigrid Zobl ◽  
Bodo D. Wilts ◽  
Willi Salvenmoser ◽  
Peter Pölt ◽  
Ille C. Gebeshuber ◽  
...  
Keyword(s):  
Orientation Dependence ◽  
Butterfly Species ◽  
Butterfly Wing ◽  
Step Size ◽  
Photonic Structures ◽  
Light Interference ◽  
Important Input ◽  
Individual Scale ◽  
The Individual ◽  
Wing Scales

The photonic structures of butterfly wing scales are widely known to cause angle-dependent colours by light interference with nanostructures present in the wing scales. Here, we quantify the relevance of the horizontal alignment of the butterfly wing scales on the wing. The orientation-dependent reflection was measured at four different azimuth angles, with a step size of 90°, for ten samples—two of different areas of the same species—of eight butterfly species of three subfamilies at constant angles of illumination and observation. For the observed species with varying optical structures, the wing typically exhibits higher orientation-dependent reflections than the individual scale. We find that the measured anisotropy is caused by the commonly observed grating structures that can be found on all butterfly wing scales, rather than the local photonic structures. Our results show that the technique employed here can be used to quickly evaluate the orientation-dependence of the reflection and hence provide important input for bio-inspired applications, e.g., to identify whether the respective structure is suitable as a template for nano-imprinting techniques.

Vapor detection through dynamic process of molecule desorption from butterfly wings

2020 ◽  
Vol 92 (2) ◽  
pp. 223-232
Author(s):  
Zhen Luo ◽  
Zhaoyue Weng ◽  
Qingchen Shen ◽  
Shun An ◽  
Jiaqing He ◽  
...  
Keyword(s):  
Butterfly Wing ◽  
Detection Mechanism ◽  
Vapor Detection ◽  
Desorption Process ◽  
Mixing Ratios ◽  
Vapor Sensing ◽  
Butterfly Wings ◽  
Components Analysis ◽  
Morpho Butterfly ◽  
Wing Scales

AbstractThis work explores an alternative vapor sensing mechanism through analyzing dynamic desorption process from butterfly wings for the differentiation of both individual and mixed vapors quantitatively. Morpho butterfly wings have been used in differentiating individual vapors, but it is challenging to use them for the differentiation of mixed vapor quantitatively. This paper demonstrates the use of Morpho butterfly wings for the sensitive and selective detection of closely related vapors in mixtures. Principal components analysis (PCA) is used to process the reflectance spectra of the wing scales during dynamic desorption of different vapors. With the desorption-based detection mechanism, individual vapors with different concentrations and mixed vapors with different mixing ratios can be differentiated using the butterfly wing based sensors. Both the original butterfly wings and butterfly wings with surface modification show the capability in distinguishing vapors in mixtures, which may offer a guideline for further improving selectivity and sensitivity of bioinspired sensors.

scholarly journals Vapor Selectivity of a Natural Photonic Crystal to Binary and Tertiary Mixtures Containing Chemical Warfare Agent Simulants

Sensors ◽  
2019 ◽  
Vol 20 (1) ◽  
pp. 157 ◽  
Author(s):  
Joshua Kittle ◽  
Benjamin Fisher ◽  
Courtney Kunselman ◽  
Aimee Morey ◽  
Andrea Abel
Keyword(s):  
Photonic Crystals ◽  
Chemical Warfare Agent ◽  
Nerve Agent ◽  
Chemical Warfare ◽  
Mustard Gas ◽  
Dimethyl Methylphosphonate ◽  
Vapor Sensing ◽  
Sensitivity Level ◽  
Vapor Mixtures ◽  
Wing Scales

Vapor sensing via light reflected from photonic crystals has been increasingly studied as a means to rapidly identify analytes, though few studies have characterized vapor mixtures or chemical warfare agent simulants via this technique. In this work, light reflected from the natural photonic crystals found within the wing scales of the Morpho didius butterfly was analyzed after exposure to binary and tertiary mixtures containing dimethyl methylphosphonate, a nerve agent simulant, and dichloropentane, a mustard gas simulant. Distinguishable spectra were generated with concentrations tested as low as 30 ppm and 60 ppm for dimethyl methylphosphonate and dichloropentane, respectively. Individual vapors, as well as mixtures, yielded unique responses over a range of concentrations, though the response of binary and tertiary mixtures was not always found to be additive. Thus, while selective and sensitive to vapor mixtures containing chemical warfare agent simulants, this technique presents challenges to identifying these simulants at a sensitivity level appropriate for their toxicity.

scholarly journals Optical Detection of Vapor Mixtures Using Structurally Colored Butterfly and Moth Wings

Sensors ◽  
2019 ◽  
Vol 19 (14) ◽  
pp. 3058 ◽  
Author(s):  
Gábor Piszter ◽  
Krisztián Kertész ◽  
Zsolt Bálint ◽  
László Péter Biró
Keyword(s):  
Capillary Condensation ◽  
Principal Component ◽  
Sensor Material ◽  
Conformal Change ◽  
Vapor Sensing ◽  
Optical Responses ◽  
Surrounding Atmosphere ◽  
Vapor Mixtures ◽  
Chemically Selective ◽  
Wing Scales

Photonic nanoarchitectures in the wing scales of butterflies and moths are capable of fast and chemically selective vapor sensing due to changing color when volatile vapors are introduced to the surrounding atmosphere. This process is based on the capillary condensation of the vapors, which results in the conformal change of the chitin-air nanoarchitectures and leads to a vapor-specific optical response. Here, we investigated the optical responses of the wing scales of several butterfly and moth species when mixtures of different volatile vapors were applied to the surrounding atmosphere. We found that the optical responses for the different vapor mixtures fell between the optical responses of the two pure solvents in all the investigated specimens. The detailed evaluation, using principal component analysis, showed that the butterfly-wing-based sensor material is capable of differentiating between vapor mixtures as the structural color response was found to be characteristic for each of them.

scholarly journals Vapor Sensing: Nanoimprinted, Submicrometric, MOF-Based 2D Photonic Structures: Toward Easy Selective Vapors Sensing by a Smartphone Camera (Adv. Funct. Mater. 1/2016)

2016 ◽  
Vol 26 (1) ◽  
pp. 80-80
Author(s):  
Olivier Dalstein ◽  
Davide R. Ceratti ◽  
Cédric Boissière ◽  
David Grosso ◽  
Andrea Cattoni ◽  
...  
Keyword(s):  
Photonic Structures ◽  
Vapor Sensing

Light guidance in photonic structures of Morpho butterfly wing scales

2020 ◽  
Vol 126 (10) ◽  
Author(s):  
Magali Thomé ◽  
Elodie Richalot ◽  
Serge Berthier
Keyword(s):  
Butterfly Wing ◽  
Photonic Structures ◽  
Morpho Butterfly ◽  
Light Guidance ◽  
Wing Scales

scholarly journals Optical Vapor Sensing on Single Wing Scales and on Whole Wings of the Albulina metallica Butterfly

Sensors ◽  
2018 ◽  
Vol 18 (12) ◽  
pp. 4282 ◽  
Author(s):  
Krisztián Kertész ◽  
Gábor Piszter ◽  
Zsolt Bálint ◽  
László Biró
Keyword(s):  
Short Range ◽  
Ethanol Vapor ◽  
Transmitted Light ◽  
Structural Color ◽  
Vapor Sensing ◽  
Optical Readout ◽  
Green Cover ◽  
Index Matching ◽  
Chemically Selective ◽  
Wing Scales

Fast, chemically-selective sensing of vapors using an optical readout can be achieved with the photonic nanoarchitectures occurring in the wing scales of butterflies possessing structural color. These nanoarchitectures are built of chitin and air. The Albulina metallica butterfly is remarkable as both the dorsal (blue) and ventral (gold-green) cover scales are colored by the same type (pepper-pot) of photonic nanoarchitecture, exhibiting only a short-range order. The vapors of ten different volatiles were tested for sensing on whole wing pieces and some of the volatiles were tested on single scales as well, both in reflected and transmitted light. Chemically-selective responses were obtained showing that selectivity can be increased by using arrays of sensors. The sensing behavior is similar in single scales and on whole wing pieces, and is similar in reflected and transmitted light. By immersing single scales in an index-matching fluid for chitin, both the light scattering and the photonic nanoarchitecture were switched off, and the differences in pigment content were revealed. By artificially stacking several layers of blue scales on top of each other, both the intensity of the characteristic photonic signal in air and the magnitude of the vapor sensing response for 50% ethanol vapor in artificial air were increased.

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