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Phototunable Rayleigh 3D Soft Self-Oscillator EnablingVersatile Biomimetic Tubular Peristaltic Pumping. HighlightsLiving tubular organs can spatiotemporally and cyclically deform their muscular walls to implement adaptable and sustainable peristaltic pumping applicable to broad matter, achieved via
液晶聚合物执行器的微加工方法及其应用 刘凯 ， 吕久安 液晶与显示 2024年 页码:1708-1721DOI：10.37188/CJLCD.2024-0210 中图分类号：O631.2；O631.3；O753+.2收稿日期：2024-7-25 引言：液晶聚合物是一种环境刺激响应的智能形变材料,由这种智能材料构建的微型执行器可以将外界的环境刺激直接转换为机械运动,无需复杂的能量转换部件和机械传动结构,因此液晶聚合物微执行器在微型机器人、智能传输、生物医学设备等领域具有良好的应用前景.液晶聚合物的微加工存在两个技术难点:微纳尺度的器件成型和液晶取向.本文从如何解决这两个技术难点出发,
Photonic Fibrous Liquid Crystal Elastomer Actuators. Highlights1. A two-step crosslinking method employing a tubular mold enables the efficient fabrication of robust CLCE fibers, achieving high mechanical strength (Young’s modulus up to 31.8 MPa) and excellent cyclic stability.2. PFSAs
Field-Programmable Topographic-Morphing Array for General-Purpose Lab-on-a-Chip Systems. Highlights1. Field Programmable Topographic Morphing Array (FPTMA) with exceptional structural reconfiguration, field programmability, and function scalability for general-purpose lab-on-a-chip systems th
Refreshable Braille Display System Driven by Accordion-Fold Liquid Crystal Elastomer Actuators. Highlights 1. The accordion-fold structure enables LCEAs to produce large vertical displacements under electro-thermal actuation. 2. For our Refreshable Braille Display System,
Adaptive nanotube networks enabling omnidirectionally deformable electro-driven liquid crystal elastomers towards artificial muscles. Highlights1. Facile strategy to create high-performance electro-driven artificial muscles2. Special design of hierarchically structured carbon nanotube
Femtosecond-Laser-Direct-Writing Micro-Scale Soft Actuators with Controllable Shape Morphing. Highlights1. A new strategy for light-driven CLCP microstructure construction, which enables arbitrary pattern micromachining with a minimum size of 40 μm and edge HAZ below 8 μm.2. Controllab
多模式和程序化变形的管状柔性执行器在科学和工程领域具有重大的应用价值。自然界中的管状执行器具有多模式变形的特点，能够实现变形自由度高度可控的复杂而精细的变形行为。然而，由于有限和无法设计调控的变形自由度，人工合成制备的响应型管状柔性执行器往往只能产生简单的线性伸长/收缩变形。西湖大学工学院智能高分子材料实验室的研究人员受象鼻（生物管状柔性执行器）高自由度变形机制的启发（图1和图2），设计和开发出由螺旋人工肌肉纤维结构化的仿生管状三维柔性执行器，具备可设计的多自由度变形，展现出超出预期的、丰富的可控多模式变形行为。相关研究成果以“Bioinspired Helical-Artificial-Fi
人工肌肉纤维具有广阔的应用场景，涵盖智能织物、人形机器人（假肢）、机械外骨骼以及增强现实等。如何低成本批量制备出高性能人工肌肉微纤维，是科学家一直以来追求的目标。液晶弹性体（LCE）这种智能柔性材料因其具备大尺度可逆形变、响应力学输出强、形变可编程等突出优点，被业界公认为制备人工肌肉的理想材料。早在1975年，诺贝尔物理学奖得主Pierre-Gilles de Gennes教授就预言LCE非常适合用于制造人工肌肉。在过去的二十年中，熔融拉伸法、微流体法、直写式3D打印法、静电纺丝法等方法相继被开发出来用于制备纤维状LCE。但这些方法都无法连续、高速制备高性能的LCE人工肌肉微纤维。受到自然界中
Leveraging Bioinspired Structural Constraints for Tunable and Programmable Snapping Dynamics in High-Speed Soft Actuators. Highlights1. Bioinspired design principle enables preparation of high-speed actuators with tunable and programmable snapping dynamics.2. Controllable catapult moti
HighlightsBioinspired robotic system with diverse 3D waves.The waving system can be used as adaptive “soft engines/motors”.The waving system produces programmable, complex artificial peristaltic waves.AbstractBiological organisms (e.g., batoid fish, etc.) possess the remarkable ability to morph thei
范扬扬 ， 吕久安 液晶与显示 2022年 页码:1-14DOI：10.37188/CJLCD.2022-0099 中图分类号：O631.2;O631.3 收稿日期：2022-03-28，修回日期：2022-04-18
本研究开发了一种光控自动翻滚运动的软体微型机器人，该机器人的运动能力优于已报道的同类机器人。这种高机动的软体机器人展现出优异的地形适应能力，不仅适用于种类丰富的静态地形，还能够适应拓扑、力学等随时间变化的动态地形。这项新技术有望实现微型机器人在复杂未知环境中完成多项任务。
Highlights 1.Bioinspired twistless strategy enables production of high-degree-of-freedom actuators. 2.Diverse deformation modes integrated into a single fiber actuator. 3.Fiber actuators allow both large length change and powerful actuation stress. 4.Scalable manufacture.
Highlights 1.Terrain-adaptive miniature soft robots. 2.Autonomous and self-sustained rolling locomotion. 3.Flexibly switching locomotive modes (rolling, leaping, somersaulting, and high jumping).
Highlights 1.The integration of multimodal shape morphing into a single soft robot. 2.Enabling the millirobot with multimodal locomotive behaviors.
一株蔓藤带来的灵感丨吕久安团队开发出光控自动循环运动新系统
给科学加一点浪漫 | 西湖大学工学院第一季“工学之美”摄影作品展
致敬奋斗的青春！西湖大学首颁校长奖章、院长奖章
就像玩俄罗斯方块，我们可以用光控制物质自由“编队”
