Single Gyroid and Inverse b.c.c. Photonic Crystals in Bird Feathers

AbstractVivid, saturated structural colors are a conspicuous and important aspect of the appearance of many organisms. A huge diversity of underlying 3D ordered biophotonic nanostructures has been documented, for instance, within the chitinaceous exoskeletons of insects. Here, we report diverse, highly ordered, intracellular, 3D biophotonic crystals in vivid plumages from three families of birds, which have each evolved independently from quasi-ordered (glassy) ancestral states. These morphologies include exotic bi-continuous single gyroid β-keratin and air networks, inverse b.c.c. and inverse opal (r.h.c.p.) close-packings of air spheres in the medullary β-keratin of feather barbs. These self-assembled avian biophotonic crystals may serve as biomimetic inspiration for advanced multi-functional applications, as they suggest alternative routes to the synthesis of optical-scale photonic crystals, including the experimentally elusive single gyroid.Field CodesMaterials Science and Evolutionary BiologyOne Sentence SummaryEvolutionary disorder-order transitions in bird feathers suggest direct optical scale self-assembly of photonic crystals

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Evolution of single gyroid photonic crystals in bird feathers

Proceedings of the National Academy of Sciences ◽

10.1073/pnas.2101357118 ◽

2021 ◽

Vol 118 (23) ◽

pp. e2101357118

Author(s):

Vinodkumar Saranathan ◽

Suresh Narayanan ◽

Alec Sandy ◽

Eric R. Dufresne ◽

Richard O. Prum

Keyword(s):

Photonic Crystal ◽

Photonic Crystals ◽

Three Dimensional ◽

Optical Length ◽

Length Scales ◽

Structural Colors ◽

Rich Diversity ◽

Efficient Alternative ◽

Alternative Routes ◽

Channel Type

Vivid, saturated structural colors are conspicuous and important features of many animals. A rich diversity of three-dimensional periodic photonic nanostructures is found in the chitinaceous exoskeletons of invertebrates. Three-dimensional photonic nanostructures have been described in bird feathers, but they are typically quasi-ordered. Here, we report bicontinuous single gyroid β-keratin and air photonic crystal networks in the feather barbs of blue-winged leafbirds (Chloropsis cochinchinensis sensu lato), which have evolved from ancestral quasi-ordered channel-type nanostructures. Self-assembled avian photonic crystals may serve as inspiration for multifunctional applications, as they suggest efficient, alternative routes to single gyroid synthesis at optical length scales, which has been experimentally elusive.

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Self assembly of three-dimensional Lu2O3:Eu3+ inverse opal photonic crystals, their modified emissions and dual-functional refractive index sensing

Dalton Transactions ◽

10.1039/c3dt51718g ◽

2013 ◽

Vol 42 (38) ◽

pp. 14014 ◽

Cited By ~ 11

Author(s):

Yunfeng Wang ◽

Yongsheng Zhu ◽

Wen Xu ◽

Hongwei Song ◽

Sai Xu ◽

...

Keyword(s):

Refractive Index ◽

Photonic Crystals ◽

Self Assembly ◽

Three Dimensional ◽

Inverse Opal ◽

Refractive Index Sensing ◽

Dual Functional

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Invisible photonic prints shown by UV illumination: combining photoluminescent and noniridescent structural colors

Journal of Materials Chemistry C ◽

10.1039/c9tc03982a ◽

2019 ◽

Vol 7 (38) ◽

pp. 11776-11782 ◽

Cited By ~ 6

Author(s):

Dongpeng Yang ◽

Guolong Liao ◽

Shaoming Huang

Keyword(s):

Photonic Crystals ◽

Self Assembly ◽

Colloidal Particles ◽

Uv Light ◽

The Self ◽

Light Irradiation ◽

Structural Colors ◽

Uv Illumination ◽

Uv Light Irradiation

Invisible photonic prints that become visible by UV light irradiation were prepared via the self-assembly of Y2O3:Eu colloidal particles into amorphous photonic crystals (APCs) with controlled fluorescent and noniridescent structural colors.

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Self-assembly of colloidal Poly(St-MMA-AA) core/shell photonic crystals with tunable structural colors of the full visible spectrum

Optical Materials ◽

10.1016/j.optmat.2018.11.020 ◽

2019 ◽

Vol 88 ◽

pp. 128-133 ◽

Cited By ~ 9

Author(s):

Chun-Feng Lai ◽

Jia-Sian Li

Keyword(s):

Photonic Crystals ◽

Self Assembly ◽

Visible Spectrum ◽

Core Shell ◽

Structural Colors

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Preparation of monodispersed polystyrene microspheres and self-assembly of photonic crystals for structural colors on polyester fabrics

Journal of the Textile Institute ◽

10.1080/00405000.2013.865864 ◽

2014 ◽

Vol 105 (9) ◽

pp. 938-943 ◽

Cited By ~ 25

Author(s):

Jianzhong Shao ◽

Yun Zhang ◽

Guodong Fu ◽

Lan Zhou ◽

Qinguo Fan

Keyword(s):

Photonic Crystals ◽

Self Assembly ◽

Polystyrene Microspheres ◽

Polyester Fabrics ◽

Structural Colors

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Significant Suppression of Photoluminescence in Eu3+ Doped LaPO4 Inverse Opal Photonic Crystals

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.311-313.1217 ◽

2011 ◽

Vol 311-313 ◽

pp. 1217-1221

Author(s):

Zheng Wen Yang ◽

Ji Zhou ◽

Jian Bei Qiu ◽

Zhi Guo Song ◽

Da Cheng Zhou ◽

...

Keyword(s):

Photonic Crystal ◽

Photonic Crystals ◽

Self Assembly ◽

Photonic Band Gap ◽

Sol Gel ◽

Stop Band ◽

Inverse Opal ◽

Significant Suppression ◽

Photonic Stop Band ◽

Assembly Technique

Inverse opal photonic crystals of Eu3+ doped LaPO4 (LaPO4: Eu）were prepared by a self-assembly technique in combination with a sol-gel method. In the preparation process, Eu3+ doped LaPO4 precursors were filled into the interstices of the opal template assembled by monodispersive polystyrene microspheres. The polystyrene template was then removed by calcination at 650 °C for 5h, meanwhile, Eu3+doped LaPO4 inverse opal photonic crystal was formed. The photoluminescence (PL) from Eu3+ doped LaPO4 inverse opal photonic crystal was studied. The effect of the photonic stop-band on the spontaneous emission of Eu3+ has been observed in the inverse opal photonic crystals of Eu3+ doped LaPO4. Significant suppression of the emission was detected if the photonic band-gap overlaps with the Eu3+ ions emission band.

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Investigation of Au SAMs Photoclick Derivatization by PM-IRRAS

10.26434/chemrxiv.11347976 ◽

2019 ◽

Author(s):

Mark Workentin ◽

François Lagugné-Labarthet ◽

Sidney Legge

Keyword(s):

Cell Adhesion ◽

Self Assembly ◽

Materials Science ◽

Fibroblast Cell ◽

Fine Tuning ◽

Chemical System ◽

Infrared Reflection ◽

Assembled Monolayers ◽

One Step ◽

High Degree

In this work we present a clean one-step process for modifying headgroups of self-assembled monolayers (SAMs) on gold using photo-enabled click chemistry. A thiolated, cyclopropenone-caged strained alkyne precursor was first functionalized onto a flat gold substrate through self-assembly. Exposure of the cyclopropenone SAM to UV-A light initiated the efficient photochemical decarbonylation of the cyclopropenone moiety, revealing the strained alkyne capable of undergoing the interfacial strain-promoted alkyne-azide cycloaddition (SPAAC). Irradiated SAMs were derivatized with a series of model azides with varied hydrophobicity to demonstrate the generality of this chemical system for the modification and fine-tuning of the surface chemistry on gold substrates. SAMs were characterized at each step with polarization-modulation infrared reflection-absorption spectroscopy (PM-IRRAS) to confirm successful functionalization and reactivity. Furthermore, to showcase the compatibility of this approach with biochemical applications, cyclopropenone SAMs were irradiated and modified with azide-bearing cell adhesion peptides to promote human fibroblast cell adhesion, then imaged by live cell fluorescence microscopy. Thus, the “photoclick” methodology reported here represents an improved, versatile, catalyst-free protocol that allows for a high degree of control over the modification of material surfaces, with applicability in materials science as well as biochemistry.<br>

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