<i>Morpho</i> butterfly-inspired optical diffraction, diffusion, and bio-chemical sensing

Ahmed, Rajib; Ji, Xiaochao; Atta, Raghied M.; Rifat, Ahmmed A.; Butt, Haider

doi:10.1039/c8ra04382e

Cited by 19 publications

(9 citation statements)

References 41 publications

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“…Another source of color is that of structural color. This phenomenon is widely seen in nature, such as the vibrant bands of color on the surface of bubbles, peacock feathers, and the iridescent blue on the Morpho butterfly Morpho peleides (Figure 1d) [6][7][8][9] . Structural color has provided evolutionary advantages for organisms for communication, mating, defense, or camouflage 10,11 .…”

Section: Introductionmentioning

confidence: 95%

“…Another source of color is that of structural color. This phenomenon is widely seen in nature, such as the vibrant bands of color on the surface of bubbles and peacock feathers and the iridescent blue on the Morpho butterfly Morpho peleides (Figure d). − Structural color has provided evolutionary advantages to organisms for communication, mating, defense, and camouflage. , In a similar vein, biology has often served as the inspiration for new materials, − with bone and nacre − being prime examples of composites. The hard–soft interface of carbon fiber composites is analogous to the interlayer structure of nacre, and the complementary interaction of dissimilar materials is responsible for its incredible strength and toughness .…”

Section: Introductionmentioning

confidence: 99%

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Fiber with Butterfly Wings: Creating Colored Carbon Fibers with Increased Strength, Adhesion, and Reversible Malleability

Eyckens

Arnold

Randall

et al. 2019

ACS Appl. Mater. Interfaces

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Colored and color-changing materials are central to perception and interaction in nature and have been exploited in an array of modern technologies such as sensors, visual displays and smart materials. Attempts to introduce color into carbon fiber materials have been limited by deleterious impacts on fiber properties, and the extension of colored fibers towards 'smart composites' remains in its infancy. We present carbon fibers incorporating structural color, similar to that observed on the surface of soap bubbles and various insects and birds, by modifying the fiber surface through in situ polymerization grafting. When dry, the treated fibers exhibit a striking blue color, but when exposed to a volatile solvent, a cascade of colors across the visible region is observed as the film first swells and then shrinks as the solvent evaporates. The treated fibers not only possess a unique color and color-changing ability, but can also be reversibly formed into complex shapes and bear significant loads even without being encased in a supporting polymer. The tensile strength of treated fibers shows a statistically significant increase (+12%) and evaluation of the fiber-to-matrix adhesion of these polymers to an epoxy resin shows more than 300% improvement over control fibers. This approach creates a new platform for the multifaceted advance of smart composites.

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Section: Introductionmentioning

confidence: 95%

Section: Introductionmentioning

confidence: 99%

Fiber with Butterfly Wings: Creating Colored Carbon Fibers with Increased Strength, Adhesion, and Reversible Malleability

Eyckens

Arnold

Randall

et al. 2019

ACS Appl. Mater. Interfaces

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“…When the femtosecond laser ablates, the fabricated nanoscale and microscale surface structures on the float glass lead to a diffusion angle up to 172°. 40,41 The method of laser-induced surface texturing has a fast-processing time and flexibility of patterning various geometries. Unlike the traditional nanosecond and femtosecond laser surface texturing, advanced continuous wave (CW) CO 2 laser is utilized for fabricating optical diffusers due to high efficiency, high power, and low capital cost.…”

Section: Surface-relief Optical Diffusersmentioning

confidence: 99%

A comprehensive review of optical diffusers: progress and prospects

2023

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“…Structural coloration generated by photonic structures is ubiquitous in nature. − The biophotonic colors created in biology result from the interference of scattered light from the nanometer-scale periodic structure . The vivid colors of living systems such as Morpho didius butterfly wings, , peacock feathers, weevil skin, and brown algae are all generated from the geometrical arrangement from at least two components with different refractive indices that are periodically ordered, resulting in the prevention of light from propagating through the materials, leading to wavelength-specific reflection.…”

Section: Introductionmentioning

confidence: 99%

Solvent-Responsive and Reversible Structural Coloration in Nanostructured Block Polymer Films

Hickey

2020

Macromolecules

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Structural coloration, the vibrant colors in many biological systems, results from periodically ordered nanostructures, giving rise to a photonic band gap in which specific wavelengths are either reflected or transmitted. In many of the current materials, structural coloration is a result of the static morphology, and modifications of the materials are directed toward tuning the reflected wavelength. Recently, excitement in the ability to create materials exhibiting responsive and reversible structural coloration for manipulating light at the nanoscale has been motivated by biological systems that utilize changes in coloration for camouflage or communication between other animals. Here, we establish the effect of solvent swelling and deswelling on the photonic band gap of nanostructured films containing a lamellar-forming diblock copolymer, poly(1,2-butadiene)-block-poly(ethylene oxide) (1,2PBD-PEO). The large chemical incompatibility between 1,2PBD and PEO domains (resulting in a high-χ system) allows to strategically and independently swell either one or both domains while maintaining the same lamellar morphology. The influence of solvent, leading to wavelength-specific reflection, entails changes in both the domain spacing and refractive index. A good solvent for both 1,2PBD and PEO domains, such as tetrahydrofuran, leads to a prominent increase in the domain spacing, and as a result, a shifting of the reflected light to green from an initially colorless and translucent film. For selective solvents such as water and hexane, only one domain swells (PEO or 1,2PBD domain, respectively), resulting in asymmetric changes in domain spacing. Additionally, the existence of PEO crystals plays an essential role in the ability of solvents to swell polymer domains. The structural and refractive index transformations on swelling with solvents leading to changes in the reflected wavelength and intensity are found to be reversible on the evaporation of solvents, enabling cyclic swelling and deswelling of the nanostructure. The work presented here highlights the necessary parameters for tuning the photonic band gap properties in self-assembled polymer materials using a combination of solvent quality (e.g., degree of polymer domain swelling) and variations in the effective refractive indices between domains.

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Morpho butterfly-inspired optical diffraction, diffusion, and bio-chemical sensing

Abstract: Morpho butterfly-inspired structures were used as optical devices (diffraction, diffusion, etc.). Their optical performance were modelled and studied, revealing their potential for real-life bio-sensing applications.

Cited by 19 publications

References 41 publications

Fiber with Butterfly Wings: Creating Colored Carbon Fibers with Increased Strength, Adhesion, and Reversible Malleability

Fiber with Butterfly Wings: Creating Colored Carbon Fibers with Increased Strength, Adhesion, and Reversible Malleability

A comprehensive review of optical diffusers: progress and prospects

Solvent-Responsive and Reversible Structural Coloration in Nanostructured Block Polymer Films

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