Temperature‐Time‐Dependent Dynamic Pattern From Multi‐Inks Printing Based on Chiral Helix Superstructure DOI Open Access

Zhiying Bie,

Wenjie Yang, Yujie Chen

и другие.

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Фев. 12, 2025

Abstract Blue phase liquid crystal (BPLC) dynamic patterns have attracted wide attention for promising applications in optical information manipulation and visualization sensing, owing to unique 3D chiral helix superstructure adjustable bright/abundant colors response extra fields. Inkjet printing has become an efficient approach achieving programmable BPLC patterns. However, it remains a challenge achieve independent “on/off” control of regional using the same ink due unrevealed temperature‐time‐dependent color change behavior determined by different inks. Herein, comprehensive understanding reflective bandgap shift law versus temperature/time is established investigating diffusion kinetics multiple inks (5CB, 6CB, 8CB) hydrophobically modified blue‐phase polymer templates. The three induce redshift followed blueshift color/reflectance wavelengths, but triggering times differ significantly at temperature, which attributed inks' transition characteristics, fluid properties, interaction with network. Dynamic multi‐color selective region are successfully fabricated based on time‐temperature controlled multi‐ink technique displaying time‐series multi‐level encryption (including “growing apple tree” “nested QR codes”). This study provides important insights into design fabrication advanced devices

Язык: Английский

Self-assembled liquid crystal architectures for soft matter photonics DOI Creative Commons
Lingling Ma, Chaoyi Li,

Jintao Pan

и другие.

Light Science & Applications, Год журнала: 2022, Номер 11(1)

Опубликована: Сен. 13, 2022

Self-assembled architectures of soft matter have fascinated scientists for centuries due to their unique physical properties originated from controllable orientational and/or positional orders, and diverse optic photonic applications. If one could know how design, fabricate, manipulate these optical microstructures in systems, such as liquid crystals (LCs), that would open new opportunities both scientific research practical applications, the interaction between light matter, intrinsic assembly topological patterns, multidimensional control (polarization, phase, spatial distribution, propagation direction). Here, we summarize recent progresses self-assembled typical thermotropic LCs bio-based lyotropic LCs. After briefly introducing basic definitions materials, present manipulation schemes various LC microstructures, especially topographic configurations. This work further illustrates external-stimuli-enabled dynamic controllability structures demonstrates several emerging Lastly, discuss challenges materials towards photonics, envision future perspectives this field.

Язык: Английский

Процитировано

114

Bioinspired Colloidal Photonic Composites: Fabrications and Emerging Applications DOI
Miaomiao Li,

Quanqian Lyu,

Bolun Peng

и другие.

Advanced Materials, Год журнала: 2022, Номер 34(52)

Опубликована: Март 9, 2022

Organisms in nature have evolved unique structural colors and stimuli-responsive functions for camouflage, warning, communication over millions of years, which are essential to their survival harsh conditions. Inspired by these characteristics, colloidal photonic composites (CPCs) composed crystals embedded the polymeric matrix artificially prepared show great promise applications. This review focuses on summary building blocks, i.e., particles matrices, constructive strategies from perspective designing CPCs with robust performance specific functionality. Furthermore, state-of-the-art applications also discussed, including colorful coatings, anti-counterfeiting, regulation photoluminescence, especially field visualized sensing. Finally, current challenges potential future developments this discussed. The purpose is not only clarify design principle artificial but serve as a roadmap exploration next-generation materials.

Язык: Английский

Процитировано

112

Functional Textiles with Smart Properties: Their Fabrications and Sustainable Applications DOI
Yabin Zhang, Xiaohu Xia, Kaikai Ma

и другие.

Advanced Functional Materials, Год журнала: 2023, Номер 33(33)

Опубликована: Май 1, 2023

Abstract Benefiting from inherent lightweight, flexibility, and good adaptability to human body, functional textiles are attracting tremendous attention cope with wearable issues in sustainable applications around beings. In this feature article, a comprehensive thoughtful review is proposed regarding research activities of smart properties. Specifically, brief exposition highlighting the significance rising demands novel throughout society begun. Next, systematic provided about fabrication 1D spinning, 2D modification, 3D construction, their diverse functionality as well applications, showing clear picture evolved readers. How engineer compositions, structures, properties elaborated achieve different All these tunable, upgraded, versatile make developed suited for extensive ranging environmental monitoring or freshwater access personal protection power supply. Finally, simple summary critical analysis drawn, emphasis on insight into remaining challenges future directions. With worldwide efforts, advance breakthrough textile functionalization expounded will promote revolution intelligence era.

Язык: Английский

Процитировано

93

Stimuli‐responsive photonic actuators for integrated biomimetic and intelligent systems DOI Creative Commons
Jingjing Gao, Yuqi Tang, Daniele Martella

и другие.

Deleted Journal, Год журнала: 2023, Номер 1(1)

Опубликована: Июль 27, 2023

Abstract Photonic actuators, serving as an emerging kind of intelligent stimuli‐responsive material, can exhibit the abilities to change their structural colors/fluorescence and shapes under specific external stimuli, which have demonstrated essential applications in fields soft robotics, sensors, bionics, information storage, anti‐counterfeiting, energy harvesting. In this review, we reported state‐of‐the‐art research progress photonic actuators classified on basis material type focusing actuation mechanisms, design principles, processing techniques. We also broadly summarized relative robots, so on. Finally, a vision for challenges area future promising directions is presented.

Язык: Английский

Процитировано

92

Sustainable Mitigation Strategies for Urban Heat Island Effects in Urban Areas DOI Open Access
Abdul Munaf Mohamed Irfeey, Hing-Wah Chau,

Mohamed Mahusoon Fathima Sumaiya

и другие.

Sustainability, Год журнала: 2023, Номер 15(14), С. 10767 - 10767

Опубликована: Июль 9, 2023

The globe is at a crossroads in terms of the urban heat island effect, with rising surface temperatures due to urbanization and an expanding built environment. This cause-and-effect connection may be linked weather-related dangers, natural disasters, disease outbreaks. Urbanization industrialization will not lead secure sustainable future. Finding solutions problems such as effect forefront scientific research policy development. Sustainable ways decrease impacts are core principle for planners. literature study examines benefits adding green infrastructure materials built-up areas reduce effect. Materials reflective street pavements, coating including light-colored paint, phase-change materials, color-changing fluorescence energy-efficient appliances considered whereas like roofs, walls, parking shaded streets mitigate hurdles widespread adoption practices include lack governmental legislation, insufficient technological development, erroneous estimation economic gains, unwillingness on part impacted parties.

Язык: Английский

Процитировано

86

Bioinspired Dynamic Camouflage in Programmable Thermochromic‐Patterned Photonic Films for Sophisticated Anti‐Counterfeiting DOI
Yue Wu,

Ruikang Sun,

Jie Ren

и другие.

Advanced Functional Materials, Год журнала: 2022, Номер 33(7)

Опубликована: Дек. 9, 2022

Abstract Although the encrypted anti‐counterfeiting technology based on infiltration‐controlled photonic crystals has attracted widespread attention, information only hidden and display states. The more diverse complex encryption effect requires a continuous programmable color transformation. Inspired by dynamic camouflage in chameleons cephalopods, thermochromic patterned film is developed for anti‐counterfeiting, which constructed infiltrating thermoresponsive poly(oligo ethylene glycol acrylate) copolymers SiO 2 ‐coated ZnS crystals. responsive temperature range determined lower critical solution of filled copolymers, tunable controlling ratios different monomers copolymerization. Based this, adjusted to 5–55 °C decoding set at 20 °C. pattern either when water >55 or <5 Only accurately matches (20 °C), do areas preset colors, resulting complete being revealed. design this indicates new direction technology, can carry abundant encrypt them sophisticated.

Язык: Английский

Процитировано

85

Hydrogels with electrically conductive nanomaterials for biomedical applications DOI Creative Commons
Georgios Kougkolos, Muriel Golzio, Lionel Laudebat

и другие.

Journal of Materials Chemistry B, Год журнала: 2023, Номер 11(10), С. 2036 - 2062

Опубликована: Янв. 1, 2023

Hydrogels, soft 3D materials of cross-linked hydrophilic polymer chains with a high water content, have found numerous applications in biomedicine because their similarity to native tissue, biocompatibility and tuneable properties. In general, hydrogels are poor conductors electric current, due the insulating nature commonly-used chains. A number biomedical require or benefit from an increased electrical conductivity. These include used as scaffolds for tissue engineering electroactive cells, strain-sensitive sensors platforms controlled drug delivery. The incorporation conductive nanomaterials results nanocomposite which combine conductivity nature, flexibility content hydrogels. Here, we review state art such materials, describing theories current conduction hydrogels, outlining limitations highlighting methods improving

Язык: Английский

Процитировано

84

Precise Assembly of Highly Crystalline Colloidal Photonic Crystals inside the Polyester Yarns: A Spray Coating Synthesis for Breathable and Durable Fabrics with Saturated Structural Colors DOI

Yuying He,

Luyao Liu, Qianqian Fu

и другие.

Advanced Functional Materials, Год журнала: 2022, Номер 32(24)

Опубликована: Март 10, 2022

Abstract It is a great challenge to prepare highly crystalline photonic crystal (PC)‐modified fabrics with saturated colors without sacrificing the wearing experience, such as breathability and softness, at same time. Here, spray coating process developed precisely assemble colloidal PCs inside every yarn of polyester (PET) fabric. High surface tension high boiling point for solvent solution, well low twist angle, large weave cycles, tightness fabric substrate, are found be favorable formation high‐quality PC‐modified fabrics. In addition, as‐prepared PC/PET have durable thanks PC structures polyacrylate adhesives. They also possess good softness precise assembly in avoids blocking weaving holes cracks.

Язык: Английский

Процитировано

80

Recent Progress in Responsive Structural Color DOI
Xiaoyu Hou,

Fuzhen Li,

Yanlin Song

и другие.

The Journal of Physical Chemistry Letters, Год журнала: 2022, Номер 13(13), С. 2885 - 2900

Опубликована: Март 25, 2022

Structural color has been regarded as an ideal alternative to pigments because of the advantages environmental friendliness, resistance fading, and dynamic regulation. Responsive structural can give real-time visible feedback external stimuli thus great prospects in many applications, such displays, sensing, anticounterfeiting, information storage, healthcare monitoring. In this Perspective, we elucidate basic concepts, controllable fabrications, promising applications responsive colors. particular, systematically summarize general regulation mode all kinds systems. First, introduce chromogenic structures well modes color. Second, present fabrication methods patterned Then, systems are highlighted detail. Finally, existing challenges future perspectives on

Язык: Английский

Процитировано

78

Direct Ink Writing of 4D Structural Colors DOI Creative Commons
Jeroen A. H. P. Sol,

Luc G. Smits,

Albertus P. H. J. Schenning

и другие.

Advanced Functional Materials, Год журнала: 2022, Номер 32(30)

Опубликована: Май 6, 2022

Abstract Additive manufacturing with stimuli‐responsive materials—4D printing—is a rapidly growing field, direct ink writing allowing deposition of wide variety materials. The synthesis humidity‐sensitive cholesteric liquid crystal oligomer is reported. With the responsive ink, demonstrator devices exhibiting ink's “four dimensionality” are printed in disparate fashions: as structural color change or preprogrammed deformation mode. After printing, photonic changes response to atmospheric humidity, demonstrated hydrochromic coating precisely deposited atop 3D‐printed beetle. activation aqueous acid, beetle exhibits vibrant shifts across visible spectrum. Alternatively, scallop‐inspired actuator 3D‐programmed selectively treated allow reversible “opening” and “closing” when exposed humid dry air, respectively. enables additive both monolithic multimaterial stimuli‐responsive, shape‐changing, structurally colored objects, toward broad application cholesterics future “smart,” 4D devices.

Язык: Английский

Процитировано

76