3D printing of soft magnetoactive superhydrophobic elastomers for droplet manipulation

IF 2.7 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Letters Pub Date : 2024-11-04 DOI:10.1016/j.matlet.2024.137658

Xinying Li, Tianqi Pang, Ziyue Huang, Jianping Wang, Fang Huang, Liang Zhang

引用次数: 0

Abstract

Soft responsive surfaces have generated significant interest due to their dynamic control over wetting behaviors through geometrical reorganization in response to external stimuli. Here, magnetoactive elastomeric surfaces are 3D printed using the direct ink writing technology. By designing a “high-wall” structure, superhydrophobic ability is achieved, with water contact angle of 152° and a sliding angle of 9°. The mechanical softness of the elastomer allows for reversible geometrical changes under magnetic field. This deformation can be precisely controlled by adjusting the strength and position of the magnet, causing the water droplet to move towards the desired location with a speed of 3.33 mm/s. This study introduces a new strategy for achieving lossless transportation of μL-scale nonmagnetic droplets, which holds potential for applications in microfluidics and soft robotics.

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用于液滴操控的软磁活性超疏水弹性体的三维打印技术

软响应表面通过响应外部刺激的几何重组对润湿行为进行动态控制，因而引起了人们的极大兴趣。在这里，磁活性弹性表面是利用直接墨水书写技术三维打印出来的。通过设计 "高壁 "结构，实现了超疏水能力，水接触角为 152°，滑动角为 9°。弹性体的机械柔软性允许其在磁场作用下发生可逆的几何变化。这种变形可通过调整磁铁的强度和位置来精确控制，从而使水滴以 3.33 毫米/秒的速度向所需位置移动。这项研究介绍了一种实现微升尺度非磁性液滴无损传输的新策略，有望应用于微流控技术和软机器人技术。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Materials Letters 工程技术-材料科学：综合

CiteScore

5.60

自引率

3.30%

发文量

1948

审稿时长

50 days

期刊介绍： Materials Letters has an open access mirror journal Materials Letters: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. Materials Letters is dedicated to publishing novel, cutting edge reports of broad interest to the materials community. The journal provides a forum for materials scientists and engineers, physicists, and chemists to rapidly communicate on the most important topics in the field of materials. Contributions include, but are not limited to, a variety of topics such as: • Materials - Metals and alloys, amorphous solids, ceramics, composites, polymers, semiconductors • Applications - Structural, opto-electronic, magnetic, medical, MEMS, sensors, smart • Characterization - Analytical, microscopy, scanning probes, nanoscopic, optical, electrical, magnetic, acoustic, spectroscopic, diffraction • Novel Materials - Micro and nanostructures (nanowires, nanotubes, nanoparticles), nanocomposites, thin films, superlattices, quantum dots. • Processing - Crystal growth, thin film processing, sol-gel processing, mechanical processing, assembly, nanocrystalline processing. • Properties - Mechanical, magnetic, optical, electrical, ferroelectric, thermal, interfacial, transport, thermodynamic • Synthesis - Quenching, solid state, solidification, solution synthesis, vapor deposition, high pressure, explosive