最新刊期
卷 40 ， 期 2 ， 2025
- “液晶弹性体人工肌肉研究进展，对比自然肌肉驱动性能，探索改进方法，为软体机器人及医疗设备发展提供新方向。”摘要：Liquid crystal elastomers （LCEs） are high-performance polymer materials composed of liquid crystal units that exhibit excellent elasticity and reversible deformation through liquid crystal orientation transitions. This reversible deformation closely mimics the behavior of natural muscles， making LCEs an ideal material for artificial muscle fabrication. In recent years， extensive research has focused on LCE-based artificial muscles. This review provides an overview of the preparation methods and actuation modes of LCE-based artificial muscles. It emphasizes a comparative analysis of the actuation performance of LCE-based artificial muscles versus natural muscles and methods for enhancing the actuation performance of LCE-based artificial muscles through chemical modification and structural optimization. Additionally， this review discusses the future prospects for the development of LCE-based artificial muscles in soft robotics and intelligent medical devices.关键词：liquid crystal elastomer;artificial muscle;actuation performance;soft robot;medical devices110|195|0更新时间：2025-02-14
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Research progress of liquid crystal elastomer with designable and reconfigurable shape morphing AI导读
“液晶弹性体在人工肌肉等领域的研究进展，专家综述了实现分子取向图案的技术，为软体机器人发展提供新方向。”摘要：Due to the designable shape morphing and up to 400% strain， liquid crystal elastomer （LCE） has important potential applications in many fields， such as artificial muscles， soft robotics， miniaturized robotics and so on. The designable deformation of LCE stems from their designable complicated molecular orientation pattern. Here， we presented the technologies applied in designing molecular orientation pattern of LCE， including mechanical stretching alignment， field alignment， surface alignment and 3D printing. We analyzed the orientation principle and application scenarios of each technology and summarized their advantages and shortcoming. In addition， we introduced the research progress of LCE with reconfigurable deformation. The LCE with reconfigurable deformation could display various shape morphing under outer stimulus and possess certain environmental adaptability， thus has a wider application prospect. This paper gave a briefly explanation on the several strategies applied in realizing LCE with reconfigurable deformation. In the end， we envisaged the future development of LCE with designable and reconfigurable shape morphing.关键词：liquid crystal elastomer;designable shape morphing;reconfigurable shape morphing;smart material117|247|0更新时间：2025-02-14 -
Advances of complex molecular alignments and multiplex deformations in liquid crystal elastomers AI导读
“液晶弹性体在软体机器人等领域应用前景广阔，专家总结了其形变模式及应用进展，为未来发展提供方向。”摘要：Liquid crystal elastomers （LCEs）， as a kind of programmable， multi-stimulus responsive， reversibly deformable polymerized soft matter material， currently show great prospects in the fields of soft robots， soft actuators， flexible electronics， artificial muscles， and soft photonic devices. The multifunctional actuations of LCEs are mainly based on the complex multiplex deformations， which are induced by programmable molecular alignments. The realization of high-resolution molecular alignments of LCEs within different thickness systems has advanced requirements for the mesogen alignment technique. In this review article， we discuss the current mesogen alignment techniques and the complex multiplex deformations of LCEs within different morphology systems based on various alignment techniques. We further summarize the advances of LCEs in soft robots， tunable optical devices， smart fabrics and other fields based on programmable complex deformation， and outline the current challenges and future development trends of LCEs.关键词：liquid crystal elastomers;alignment techniques;molecular orientations;multiplex deformations;soft robots;tuneable optical devices148|228|0更新时间：2025-02-14 - “据最新报道，液晶弹性体驱动器在软体机器人等领域取得重要进展，研究人员构建了自持驱动系统，为软体机器人发展提供新思路。”摘要：Liquid crystal elastomer （LCE） actuators are stimuli-responsive anisotropic polymer networks with aligned mesogens and moderate crosslinking. Renowned for their reversible actuation capability， diverse stimuli-responsiveness， rapid response， high programmability and robust mechanical properties， LCE actuators hold significant promise in applications such as soft robotics， artificial muscles and micro-intelligent devices. Recently， based on the reversible actuation of LCEs， self-sustained LCE actuators have emerged through the integration of built-in negative feedback loop control within the actuating system. These actuators emulate biological soft systems， executing rhythmic， continuous， and self-sustaining motions by autonomously harvesting energy from constant stimuli or natural environments and converting it into perpetual mechanical motion through their physical intelligence. This review offers a comprehensive analysis of the stimuli-responsiveness， construction principles， negative feedback control mechanisms， motion dynamics and potential application fields of two key categories： LCE self-oscillators and LCE self-sustained locomotors. We also provide an outlook on the future prospect of self-sustained LCE actuaors.关键词：liquid crystal elastomers;stimulus responsiveness;self-sustained actuators;self-oscillators;self-sustained locomotors177|250|0更新时间：2025-02-14
Liquid Crystal Actuation Materials
- “液晶聚合物涂层在调控表面摩擦润滑及生物医用领域取得新进展，为未来发展提供新方向。”摘要：Liquid crystal polymer （LCP） has anisotropy in optical， electrical and mechanical properties because its molecular units are arranged in a liquid crystal order. After the introduction of responsive chemical groups， LCP coatings have stimulus responsiveness and can respond to stimuli such as light， heat and electric fields. The LCP coating can intelligently regulate its surface topography under external stimulation， adjust the friction and lubrication properties of the surface， and affect the growth and differentiation behavior of cells. This article reviews the latest advances in scientific research on liquid crystal polymer coatings， focusing on their applications in regulating surface friction and lubrication properties and in biomedical applications. At the same time， the article looks forward to the application prospects of liquid crystal polymer coatings in future development and points out the scientific issues that need to be solved.关键词：Liquid crystal polymer;coating;stimuli-responsive;friction;lubrication34|96|0更新时间：2025-02-14
- “液晶微流控技术的最新研究进展，为新型光学器件、传感技术等领域创新提供解决方案。”摘要：The integration of liquid crystals and microfluidics has catalyzed the emergence of new research and application domains. This combination enhances the precise control of liquid crystal behavior at the micro-scale while driving innovation in optical devices， sensing technologies， and related fields. The distinctive molecular arrangement and optical properties of liquid crystals have broadened the scope of microfluidic applications， revealing diverse physical phenomena and complex fluid dynamics. This paper provides a comprehensive review of recent advancements in liquid crystal microfluidics， with a particular emphasis on commonly used liquid crystal materials and their applications within microfluidic systems. It also examines the impact of microchannel surface functionalization on liquid crystal orientation and explores the interplay between liquid crystal flow and molecular orientation. Finally， the paper discusses the applications of liquid crystal microfluidics in optical components， sensors and bio-detection， and anticipates future development trends and challenges in this field.关键词：liquid crystals;microfluidics;optical devices;sensing;Topological defects86|84|0更新时间：2025-02-14
Functional Liquid Crystal Materials
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Effect of liquid crystalline ordering on the self-assembly behavior of block copolymers in solutions AI导读
“在纳米科技领域，聚合物纳米粒子的精确控制形貌和结构备受关注。专家深入研究了液晶嵌段共聚物溶液态自组装，为精确控制胶束尺寸提供新方法。”摘要：With the development of nanotechnology， the preparation of polymeric nanoparticles with finely controlled morphologies and structures has attracted extensive attention， and found widely applicable in various fields. Amphiphilic block copolymers can self-assemble into a variety of micellar structures， such as cylinders， vesicles， and spherical micelle in selective solvents. In particular， by introducing mesogenic ordering as a driving force，the solution-state self-assembly behaviors of liquid crystalline block copolymers LCBCPs can be significantly different.Since the properties of micellar aggregates are directly determined by their morphologies and sizes， it is very important to control the size of the micelles structure. In recent years， the precise control over the size of Polymer nanoassembly structures via simple and efficient methods has been one of the hot spots and difficulties in the field of chemistry and materials science. In this review， we summarized the research progress of solution-state self-assembly of LC BCPs for the past few years， mainly focusing on three aspects， including a comprehensive understanding of mesogenic ordering-driven self-assembly， precise assembly methods， and controllable hierarchical self-assembly.关键词：liquid crystalline block copolymer;precisely controlled self-assembly;hierarchical assembly52|66|0更新时间：2025-02-14 - “最新研究进展显示，可聚合Gyroid液晶相在分子筛、离子交换等领域具有巨大应用潜力，专家探索了关键技术和策略，为解决合成和结构保持挑战提供解决方案。”摘要：Gyroid liquid crystals possess unique three-dimensionally interconnected network structures， enabling the construction of polymer materials with precise molecular sieving and highly efficient transport properties. This review summarizes recent advances in the field of polymerizable gyroid liquid crystals， focusing on key techniques and strategies including the design and synthesis of amphiphiles， the solidification of liquid crystal structures， and the control of nanochannel dimensions. While the cubic spatial characteristics and negative Gaussian curvature geometry of gyroid liquid crystals endow the resulting polymers with unique advantages， they also present challenges in synthesis and structural preservation. Current research endeavors to overcome these hurdles by developing novel monomers and optimizing structure retention mechanisms， such as utilizing intermolecular interactions to stabilize the gyroid phase， simplifying synthetic routes， and reducing costs. Moreover， precise control over nanochannel size and morphology， along with the integration of polymerizable gyroid liquid crystals with other functional materials， can further broaden their application scope. It is anticipated that polymer materials based on polymerizable gyroid liquid crystals will play an increasingly important role in diverse fields， including water treatment， ion transport， drug delivery and catalysis.关键词：gyroid liquid crystals;polymerizable liquid crystals;bicontinuous nanochannels1|2|0更新时间：2025-02-14
Soft Matter Self-assembly
- “透明显示器技术取得新突破，专家利用掩膜版曝光技术在全覆盖电极上制备图案化DSM透明显示器，为产业化发展提供新方向。”摘要：Patterned transparent display based on dynamic scattering mode （DSM） has become a prominent technique in display industry. However， patterned DSM always depend on patterned electrodes， which not only make the preparation process more complex， and increase the cost of the equipment. To solve this problem， our research develops a method for fabricating patterned DSM transparent display which used a mask to expose the liquid crystal （LC） system on fully covered electrodes. By introducing LC monomers into the DSM system and expose on photopolymerization areas， the LC monomers in unexposed area will transfer to exposed area， thus control the distribution of the polymer network. When voltage is applied， the move of ion dopant will be restrained by dense polymer network in exposed area， so the exposed area will be transparent； In unexposed area， the movement of ion dopant changes the orientation direction of LC molecules， which can realize dynamic scattering effect， thus achieve patterned display. The contrast ratio （CR） in exposed area and unexposed area can reach 16. Our research offers a useful technology guidance for functional and industrial development of transparent displays.关键词：dynamic scattering mode;polymer network;patterned display;transparent display68|54|0更新时间：2025-02-14
- “液晶材料在信息安全领域的应用取得新进展，专家综述了其最新技术和应用案例，为加密和防伪提供新思路。”摘要：Liquid crystals， with their multifunctional and tunable properties， have garnered significant attention in the field of information security. Due to their unique molecular structures and phase transition properties， liquid crystals can alter their characteristics in response to external stimuli， such as reversible switching between light scattering and transparent states， dynamic changes in structural color， and variations in rigidity. Through doping stimuli-responsive molecules or dyes into the liquid crystal matrix， it can not only improve the physical and optical properties of the liquid crystals， but also impart additional stimulus-responsive functions， or even multiple stimuli responses， thus enabling multi-mode or multi-level dynamic information storage. Applying liquid crystal materials to anti-counterfeiting labels enables efficient and visual authentication of products and documents， effectively countering forgery and tampering. This article reviews the latest technological advancements of liquid crystal materials in the fields of encryption and anti-counterfeiting. It systematically introduces the design and manufacturing strategies of stimulus-responsive liquid crystal materials， and their response mechanisms under single and multiple stimuli， such as light， heat， stress， humidity and electricity， and discusses specific application cases in encryption and anti-counterfeiting. Finally， the prospect and challenges of liquid crystal materials in the field of information security are introduced. This review provides important guidance for the design and development of in liquid crystal materials in encryption and anti-counterfeiting applications.关键词：liquid crystals;dynamic regulation;stimuli responses;encryption;anti-counterfeiting73|125|0更新时间：2025-02-14
Liquid Crystal Display Devices
- “在液晶中原位合成纳米粒子，拓宽蓝相温域20%，为无机纳米与有机材料复合提供新思路。”摘要：In order to solve the problem of nanoparticle dispersion in liquid crystal and improve the stability of liquid crystal phase， this paper innovatively proposed a method for in-situ synthesis of nanoparticles. Using noble metal acetate as precursor and reducing agent， liquid crystal as template and protective agent， and controlling different conditions such as reaction temperature and precursor concentration， gold nanoparticles with different particle sizes and morphologies were prepared， and their effects on liquid crystal phase transition behavior and blue phase temperature range were studied. By in-situ synthesizing 7.0 nm gold nanoparticles in the blue phase of liquid crystal， the nanoparticles are evenly dispersed and the blue phase temperature range is widened by 20%. This method of in-situ synthesis of nanoparticles in liquid crystals provides new ideas and applications for the composite of inorganic nano and organic materials.关键词：liquid crystal;in-situ synthesis;nanoparticles;blue phase36|26|0更新时间：2025-02-14
- “二维纳米液晶材料在电控光学器件、液晶显示等领域取得研究进展，为新型软物质材料研究提供新方向。”摘要：Two-dimensional nano liquid crystals are soft materials which have large aspect ratios and are easy to manipulate the orientation. They have been extensively studied in the applications of electro-optic devices， liquid crystal displays， magnetic detectors， etc. The special characteristics of those liquid crystal materials stem from their layered structure and orientation distributions. Different chemical structures and orientation strategies can endow them with unique electro-optic properties. This article lists the preparation methods of several common materials represented by graphene oxide liquid crystal， with a focus on three orientation techniques： electric field， magnetic field， and shear force. We also present the achievements of those materials in display， mechanics， and biomimetic devices. Finally， the research results on the orientation manipulation and application of two-dimensional nano liquid crystals are summarized and discussed.关键词：lyotropic liquid crystal;two-dimensional nano liquid crystal;graphene oxide liquid crystal;liquid crystal alignment technology;electric-magnetic field orientation65|163|0更新时间：2025-02-14
Liquid Crystal Nanomaterials
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