Fabrication of the replica templated from butterfly wing scales with complex light trapping structures

Han, Zhiwu; Li, Bo; Mu, Zhengzhi; Yang, Meng; Niu, Shichao; Zhang, Junqiu; Liu, Ren

doi:10.1016/j.apsusc.2015.07.119

Cited by 28 publications

(20 citation statements)

References 48 publications

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“…The exact fabrication of complex three-dimensional topologies is still beyond current nanofabrication capabilities, however [ 50 – 52 ]. The wing scales of T. brookiana have served as templates for creating light trapping structures based on the black wing scales via an inverse SiO 2 replica [ 21 , 23 , 24 ]. Although improperly described at some points, the latter authors show that replication of the black scales results in black optical structures with similar morphology.…”

Section: Discussionmentioning

confidence: 99%

“…A previous study also reported the intriguingly complex ultrastructure of the strongly green reflecting wing scales of the birdwing butterfly T. brookiana [ 20 ]. The anatomy of the birdwing scales has inspired the production of advanced materials via replication into inorganic materials [ 21 – 24 ]. However, we found that the latter papers contain confusing data and erroneous identifications of the scales of T. brookiana .…”

Section: Introductionmentioning

confidence: 99%

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Unique wing scale photonics of male Rajah Brooke’s birdwing butterflies

2016

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BackgroundUltrastructures in butterfly wing scales can take many shapes, resulting in the often striking coloration of many butterflies due to interference of light. The plethora of coloration mechanisms is dazzling, but often only single mechanisms are described for specific animals.ResultsWe have here investigated the male Rajah Brooke’s birdwing, Trogonoptera brookiana, a large butterfly from Malaysia, which is marked by striking, colorful wing patterns. The dorsal side is decorated with large, iridescent green patterning, while the ventral side of the wings is primarily brown-black with small white, blue and green patches on the hindwings. Dense arrays of red hairs, creating a distinct collar as well as contrasting areas ventrally around the thorax, enhance the butterfly’s beauty. The remarkable coloration is realized by a diverse number of intricate and complicated nanostructures in the hairs as well as the wing scales. The red collar hairs contain a broad-band absorbing pigment as well as UV-reflecting multilayers resembling the photonic structures of Morpho butterflies; the white wing patches consist of scales with prominent thin film reflectors; the blue patches have scales with ridge multilayers and these scales also have centrally concentrated melanin. The green wing areas consist of strongly curved scales, which possess a uniquely arranged photonic structure consisting of multilayers and melanin baffles that produces highly directional reflections.ConclusionRajah Brooke’s birdwing employs a variety of structural and pigmentary coloration mechanisms to achieve its stunning optical appearance. The intriguing usage of order and disorder in related photonic structures in the butterfly wing scales may inspire novel optical materials as well as investigations into the development of these nanostructures in vivo.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Unique wing scale photonics of male Rajah Brooke’s birdwing butterflies

2016

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“…Kingsolver (1985) suggested that the wings act as solar reflectors in Pieris butterflies to reflect solar radiation onto the body in order to increase its temperature. However, some studies have shown that the absorption of heat by butterfly wings depends mainly on the internal structure of the scale itself, where the structure called a “photonic crystal” can convert the absorbed light into heat for autonomous flight (Li et al, 2004; Han et al, 2013, 2015a, 2015b; Luohong, 2014). In the butterfly Trogonoptera brookiana , the scales have longitudinal ridges that run through the scales and the surfaces of the scales comprises a set of raised longitudinal quasiparallel lamellae (ridges), where the spaces between adjacent ridges are filled with a netlike reticulum comprising pores (Han et al, 2015a).…”

Section: Discussionmentioning

confidence: 99%

Capacity for heat absorption by the wings of the butterflyTirumala limniace(Cramer)

Liao

Zhang

et al. 2019

PeerJ

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Butterflies can directly absorb heat from the sun via their wings to facilitate autonomous flight. However, how is the heat absorbed by the butterfly from sunlight stored and transmitted in the wing? The answer to this scientific question remains unclear. The butterfly Tirumala limniace (Cramer) is a typical heat absorption insect, and its wing surface color is only composed of light and dark colors. Thus, in this study, we measured a number of wing traits relevant for heat absorption including the thoracic temperature at different light intensities and wing opening angles, the thoracic temperature of butterflies with only one right fore wing or one right hind wing; In addition, the spectral reflectance of the wing surfaces, the thoracic temperature of butterflies with the scales removed or present in light or dark areas, and the real-time changes in heat absorption by the wing surfaces with temperature were also measured. We found that high intensity light (600–60,000 lx) allowed the butterflies to absorb more heat and 60−90° was the optimal angle for heat absorption. The heat absorption capacity was stronger in the fore wings than the hind wings. Dark areas on the wing surfaces were heat absorption areas. The dark areas in the lower region of the fore wing surface and the inside region of the hind wing surface were heat storage areas. Heat was transferred from the heat storage areas to the wing base through the veins near the heat storage areas of the fore and hind wings.

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“…Over the past decades, inspired from nature self-cleaning surface, a lot of surface structures have been proposed to be superhydrophobic, such as hierarchical stripes [18], hemispheroid [19], spikes [20], interlaced Noodles or refibres [21][22][23] and random stacking nano-particle [24][25][26][27]. The characteristics of the convex sections contacting with water droplets on these structures almost are nano-micro hierarchical and discrete.…”

Section: Introductionmentioning

confidence: 99%

Facile Fabrication of Superhydrophobic Surface from Fluorinated POSS Acrylate Copolymer via One-Step Breath Figure Method and Its Anti-Corrosion Property

et al. 2019

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Novel fluorinated polyhedral oligomeric silsesquioxane (POSS) acrylic copolymers were synthesized by the radical solution polymerization. The superhydrophobic coating was prepared using a one-step breath figure method. Chemical constitution, morphology, hydrophobicity, and anticorrosion ability of as-prepared coatings were investigated by the corresponding equipment. The addition of proper fluorinated POSS can synchronously promote the formation of the micro-nano convex structure and the enrichment of fluorinated groups on the surface. Compared to commercial acrylic coating, the fluorinated POSS coating presented enhanced anticorrosion performance. The impedance was the highest and the corrosion current density was the lowest for superhydrophobic coating with 25 wt % fluorinated POSS.

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Fabrication of the replica templated from butterfly wing scales with complex light trapping structures

Cited by 28 publications

References 48 publications

Unique wing scale photonics of male Rajah Brooke’s birdwing butterflies

Unique wing scale photonics of male Rajah Brooke’s birdwing butterflies

Capacity for heat absorption by the wings of the butterflyTirumala limniace(Cramer)

Facile Fabrication of Superhydrophobic Surface from Fluorinated POSS Acrylate Copolymer via One-Step Breath Figure Method and Its Anti-Corrosion Property

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