scholarly journals Dynamic Colloidal Photonic Crystal Hydrogels with Self-Recovery and Injectability

Research ◽  
2021 ◽  
Vol 2021 ◽  
pp. 1-11
Author(s):  
Yue Ma ◽  
Peiyan He ◽  
Wanli Xie ◽  
Qiang Zhang ◽  
Weiling Yin ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Dynamic Characteristics ◽  
Colloidal Crystals ◽  
Self Healing ◽  
Proof Of Concept ◽  
Ordered Structure ◽  
Physical Damage ◽  
Periodic Nanostructures ◽  
Structural Colors ◽  
New Strategy

Simulation of self-recovery and diversity of natural photonic crystal (PC) structures remain great challenges for artificial PC materials. Motivated by the dynamic characteristics of PC nanostructures, here, we present a new strategy for the design of hydrogel-based artificial PC materials with reversible interactions in the periodic nanostructures. The dynamic PC hydrogels, derived from self-assembled microgel colloidal crystals, were tactfully constructed by reversible crosslinking of adjacent microgels in the ordered structure via phenylboronate covalent chemistry. As proof of concept, three types of dynamic colloidal PC hydrogels with different structural colors were prepared. All the hydrogels showed perfect self-healing ability against physical damage. Moreover, dynamic crosslinking within the microgel crystals enabled shear-thinning injection of the PC hydrogels through a syringe (indicating injectability or printability), followed by rapid recovery of the structural colors. In short, in addition to the great significance in biomimicry of self-healing function of natural PC materials, our work provides a facile strategy for the construction of diversified artificial PC materials for different applications such as chem-/biosensing, counterfeit prevention, optical display, and energy conversion.

scholarly journals Enhancing the brightness and saturation of noniridescent structural colors by optimizing the grain size

2020 ◽  
Vol 2 (10) ◽  
pp. 4581-4590
Author(s):  
Ning Sun ◽  
Xianglei Liu ◽  
Yan Liu ◽  
Rui Zhao ◽  
Zhengzheng Xu ◽  
...  
Keyword(s):  
Grain Size ◽  
Photonic Crystal ◽  
Domain Size ◽  
Structural Color ◽  
Ordered Structure ◽  
High Brightness ◽  
Structural Colors

A non-iridescent structural color with high brightness and saturation is obtained by adjusting the domain size of the ordered structure of the photonic crystal.

scholarly journals Programmable Invisible Photonic Patterns with Rapid Response Based on Two-Dimensional Colloidal Crystals

Polymers ◽  
2021 ◽  
Vol 13 (12) ◽  
pp. 1926
Author(s):  
Naiyu Liu ◽  
Zhikun Zheng ◽  
Dingshan Yu ◽  
Wei Hong ◽  
Hailu Liu ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Colloidal Crystals ◽  
Environmentally Friendly ◽  
Rapid Response ◽  
Swelling Kinetics ◽  
Two Dimensional ◽  
Optical Encryption ◽  
Wetting Behavior ◽  
Structural Colors ◽  
Printed Patterns

The development of invisible patterns via programmable patterning can lead to promising applications in optical encryption. This study reports a facile method for building responsive photonic crystal patterns. Commercially printed patterns were used as a mask to induce invisible patterns revealed by wetting. The masked areas exhibit different swelling kinetics, leading to strong structural colors in the masked area and transparent features in the unmasked area. The contrast could disappear through different wetting behavior, providing a unique and reversible wetting feature. This programmable printing is expected to become an environmentally friendly technique for scalable invisible optical anti-counterfeiting technology.

scholarly journals Self-assembly induced luminescence of Eu3+-complexes and application in bioimaging

2021 ◽  
Author(s):  
Ping-Ru Su ◽  
Tao Wang ◽  
Pan-Pan Zhou ◽  
Xiao-Xi Yang ◽  
Xiao-Xia Feng ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Rare Earth ◽  
Luminescence Intensity ◽  
Self Assembly ◽  
Room Temperature ◽  
Molecular Motion ◽  
Proof Of Concept ◽  
Room Temperature Phosphorescence ◽  
New Strategy ◽  
Size Controlled

Abstract Design and engineering of highly efficient emitting materials with assembly-induced luminescence, such as room temperature phosphorescence (RTP) and aggregation-induced emission (AIE), have stimulated extensive efforts. Here, we propose a new strategy to obtain size-controlled Eu3+-complex nanoparticles (Eu-NPs) with self-assembly induced luminescence (SAIL) characteristics without encapsulation or hybridization. Compared with previous RTP or AIE materials, the SAIL phenomena of increased luminescence intensity and lifetime in aqueous solution for the proposed Eu-NPs are due to the combined effect of self-assembly in confining the molecular motion and shielding the water quenching. As a proof of concept, we also show that this system can be further applied in bioimaging, temperature measurement and HClO sensing. The SAIL activity of the rare-earth (RE) system proposed here offers a further step forward on the roadmap for the development of RE light conversion systems and their integration in bioimaging and therapy applications.

Photonic Plasticines with Uniform Structural Colors, High Processability, and Self‐Healing Properties

Small ◽  
2021 ◽  
Vol 17 (8) ◽  
pp. 2007426
Author(s):  
Jing Zhang ◽  
Jingjing Zhang ◽  
Yangteng Ou ◽  
Yipeng Qin ◽  
Huilin Wen ◽  
...  
Keyword(s):  
Self Healing ◽  
Structural Colors

Easy preparation of anodic aluminum oxide photonic crystal films with tunable structural colors

2021 ◽  
Vol 122 ◽  
pp. 111722
Author(s):  
Hongyang Wei ◽  
Qing Xu ◽  
Dongchu Chen ◽  
Min Chen ◽  
Menglei Chang ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Aluminum Oxide ◽  
Anodic Aluminum Oxide ◽  
Structural Colors ◽  
Anodic Aluminum ◽  
Crystal Films

Vivid structural colors with low angle dependence from long-range ordered photonic crystal films

Nanoscale ◽  
2017 ◽  
Vol 9 (9) ◽  
pp. 3002-3009 ◽  
Author(s):  
Xin Su ◽  
Hongbo Xia ◽  
Shufen Zhang ◽  
Bingtao Tang ◽  
Suli Wu
Keyword(s):  
Photonic Crystal ◽  
Long Range ◽  
Structural Colors ◽  
Angle Dependence ◽  
Crystal Films

scholarly journals Poly(methyl methacrylate) capsules as an alternative to the ‘’proof-of-concept’’ glass capsules used in self-healing concrete

2018 ◽  
Vol 89 ◽  
pp. 260-271 ◽  
Author(s):  
Maria Araújo ◽  
Sutima Chatrabhuti ◽  
Stijn Gurdebeke ◽  
Natalia Alderete ◽  
Kim Van Tittelboom ◽  
...  
Keyword(s):  
Methyl Methacrylate ◽  
Self Healing ◽  
Proof Of Concept ◽  
Poly Methyl Methacrylate

scholarly journals Convenient and Efficient Fabrication of Colloidal Crystals Based on Solidification-Induced Colloidal Assembly

Nanomaterials ◽  
2019 ◽  
Vol 9 (4) ◽  
pp. 575 ◽  
Author(s):  
Ting Shao ◽  
Laixi Sun ◽  
Chun Yang ◽  
Xin Ye ◽  
Shufan Chen ◽  
...  
Keyword(s):  
Driving Force ◽  
Crystallization Process ◽  
Colloidal Crystal ◽  
Colloidal Crystals ◽  
Magnetic Interaction ◽  
Colloidal Assembly ◽  
Water Suspension ◽  
Colloidal Crystallization ◽  
New Strategy ◽  
Crystal Grains

The simple yet efficient and versatile fabrication of colloidal crystals was investigated based on the solidification-induced colloidal crystallization process with particle/water suspension as precursor. The resulting colloidal crystals were constituted by crystal grains with sizes ranging from several tens of micrometers to a few millimeters. Each of the grains had a close-hexagonal array of colloids, which endowed the bulk colloidal crystal powders with some specific optical properties. The freezing of water was shown as the major driving force to form colloidal crystal grains, which supersaturated the solution with nanoparticles and thus induced the formation and growth of colloidal crystal seeds. This process is intrinsically different from those conventional methods based on shearing force, surface tension, columbic interaction or magnetic interaction, revealing a new strategy to fabricate colloidal crystals in a convenient and efficient way.

scholarly journals Dynamic Characteristics of Linear and Nonlinear Wideband Photonic Crystal Filters

10.5772/54118 ◽  
2013 ◽  
Author(s):  
I. V. ◽  
J. R. Cabrera Esteves ◽  
I. A. ◽  
N. S. ◽  
J. A. Andrade Lucio ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Dynamic Characteristics ◽  
Linear And Nonlinear
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