scholarly journals Structural color coating films composed of an amorphous array of colloidal particles via electrophoretic deposition

2017 ◽  
Vol 9 (3) ◽  
pp. e355-e355 ◽  
Author(s):  
Kiyofumi Katagiri ◽  
Yuuki Tanaka ◽  
Kensuke Uemura ◽  
Kei Inumaru ◽  
Takahiro Seki ◽  
...  
Keyword(s):  
Electrophoretic Deposition ◽  
Colloidal Particles ◽  
Structural Color ◽  
Coating Films ◽  
Color Coating

scholarly journals Self‐Assembly of Colloidal Particles for Fabrication of Structural Color Materials toward Advanced Intelligent Systems

2019 ◽  
Vol 2 (1) ◽  
pp. 1900085
Author(s):  
Heng Zhang ◽  
Xiuming Bu ◽  
SenPo Yip ◽  
Xiaoguang Liang ◽  
Johnny C. Ho
Keyword(s):  
Self Assembly ◽  
Intelligent Systems ◽  
Colloidal Particles ◽  
Structural Color

scholarly journals Structurally colored coating films with tunable iridescence fabricated via cathodic electrophoretic deposition of silica particles

RSC Advances ◽  
2018 ◽  
Vol 8 (20) ◽  
pp. 10776-10784 ◽  
Author(s):  
Kiyofumi Katagiri ◽  
Kensuke Uemura ◽  
Ryo Uesugi ◽  
Kei Inumaru ◽  
Takahiro Seki ◽  
...  
Keyword(s):  
Electrophoretic Deposition ◽  
Silica Particles ◽  
Coating Films ◽  
Colored Coating

Structurally colored coatings with and without iridescence can be fabricated by varying pH of coating sols for cathodic electrophoretic deposition.

scholarly journals Modeling the electrophoretic deposition of colloidal particles

2001 ◽  
Vol 55 (3) ◽  
pp. 425-431 ◽  
Author(s):  
A. T Pérez ◽  
D Saville ◽  
C Soria
Keyword(s):  
Electrophoretic Deposition ◽  
Colloidal Particles

scholarly journals Self-Assembly of Colloidal Particles into Amorphous Photonic Crystals

2021 ◽  
Author(s):  
Yang Hu ◽  
Yuqi Zhang ◽  
Dongpeng Yang ◽  
Dekun Ma ◽  
Shaoming Huang
Keyword(s):  
Photonic Crystals ◽  
Self Assembly ◽  
Short Range ◽  
Colloidal Particles ◽  
Structural Color ◽  
Color Displays ◽  
Potential Applications

Amorphous photonic crystals (APCs) with angle-independent structural color, only short-range ordered and isotropic structures are highly desired due to their potential applications in non-fadeless pigments, color displays, sensors and optical...

scholarly journals Color from hierarchy: Diverse optical properties of micron-sized spherical colloidal assemblies

2015 ◽  
Vol 112 (35) ◽  
pp. 10845-10850 ◽  
Author(s):  
Nicolas Vogel ◽  
Stefanie Utech ◽  
Grant T. England ◽  
Tanya Shirman ◽  
Katherine R. Phillips ◽  
...  
Keyword(s):  
Self Assembly ◽  
Colloidal Particles ◽  
Building Blocks ◽  
Bragg Diffraction ◽  
Structural Color ◽  
Emulsion Droplet ◽  
Multiple Length Scales ◽  
Optical Effects ◽  
The Individual ◽  
Diffraction Effects

Materials in nature are characterized by structural order over multiple length scales have evolved for maximum performance and multifunctionality, and are often produced by self-assembly processes. A striking example of this design principle is structural coloration, where interference, diffraction, and absorption effects result in vivid colors. Mimicking this emergence of complex effects from simple building blocks is a key challenge for man-made materials. Here, we show that a simple confined self-assembly process leads to a complex hierarchical geometry that displays a variety of optical effects. Colloidal crystallization in an emulsion droplet creates micron-sized superstructures, termed photonic balls. The curvature imposed by the emulsion droplet leads to frustrated crystallization. We observe spherical colloidal crystals with ordered, crystalline layers and a disordered core. This geometry produces multiple optical effects. The ordered layers give rise to structural color from Bragg diffraction with limited angular dependence and unusual transmission due to the curved nature of the individual crystals. The disordered core contributes nonresonant scattering that induces a macroscopically whitish appearance, which we mitigate by incorporating absorbing gold nanoparticles that suppress scattering and macroscopically purify the color. With increasing size of the constituent colloidal particles, grating diffraction effects dominate, which result from order along the crystal’s curved surface and induce a vivid polychromatic appearance. The control of multiple optical effects induced by the hierarchical morphology in photonic balls paves the way to use them as building blocks for complex optical assemblies—potentially as more efficient mimics of structural color as it occurs in nature.

Fabrication of angle-independent anti-reflective structural color coating powders

2021 ◽  
Vol 17 ◽  
pp. 100361
Author(s):  
W. Wei ◽  
B. Dong ◽  
L. Cao ◽  
W. Wang
Keyword(s):  
Structural Color ◽  
Color Coating

Ultrastructure of Lymphatic Capillaries in the Transport of Colloidal Particles

1967 ◽  
Vol 25 ◽  
pp. 186-187
Author(s):  
L. V. Leak ◽  
J. F. Burke
Keyword(s):  
Connective Tissue ◽  
Colloidal Particles ◽  
Ultrastructural Level ◽  
Vital Role ◽  
Time Intervals ◽  
Thorium Dioxide ◽  
Lymphatic Capillary ◽  
Tissue Area ◽  
Rapid Removal ◽  
Tissue Fluids

The vital role played by the lymphatic capillaries in the transfer of tissue fluids and particulate materials from the connective tissue area can be demonstrated by the rapid removal of injected vital dyes into the tissue areas. In order to ascertain the mechanisms involved in the transfer of substances from the connective tissue area at the ultrastructural level, we have injected colloidal particles of varying sizes which range from 80 A up to 900-mμ. These colloidal particles (colloidal ferritin 80-100A, thorium dioxide 100-200 A, biological carbon 200-300 and latex spheres 900-mμ) are injected directly into the interstitial spaces of the connective tissue with glass micro-needles mounted in a modified Chambers micromanipulator. The progress of the particles from the interstitial space into the lymphatic capillary lumen is followed by observing tissues from animals (skin of the guinea pig ear) that were injected at various time intervals ranging from 5 minutes up to 6 months.

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