Chemotaxic biomimetic liquid metallic leukocytes

IF 17.3 1区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Matter Pub Date : 2025-02-10 DOI:10.1016/j.matt.2025.101991

Yibing Ma, Jianye Gao, Tangzhen Guan, Yiyue Tao, Minghui Guo, Jing Liu

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Abstract

The exceptional deformability and mobility of liquid-metal matter in aqueous environments confer significant potential in simulating various biomimetic behaviors. Here, inspired by biochemotaxis in nature, we fabricate a leukocyte-like liquid-metal entity that successfully simulates various leukocyte behaviors, such as self-phagocytosis, large-scale self-deformation, oscillatory self-propulsion, self-splitting and merging, and self-climbing opposing gravity. The intriguing mechanisms arise from the self-adapting surface tension of liquid metals, which is modulated by an environmentally oriented asymmetric chemical reaction that has discrepancies in tunable potential, metallic composition, and reactant ratios. Further findings demonstrate that this liquid entity can autonomously climb up to 5° slopes and traverse complex terrains. Moreover, it showcases robust deformability and impressive adaptability in obstacle navigation. It is anticipated that this functional entity will lay the foundation for future research, positioning liquid metals as a model for developing biomimetic living matter and advancing the construction of advanced nature-simulation systems.

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液态金属物质在水环境中的特殊变形性和流动性为模拟各种仿生行为提供了巨大的潜力。在这里，我们从自然界的生物化学趋向性中获得启发，制造出一种类似白细胞的液态金属实体，成功模拟了白细胞的各种行为，如自我吞噬、大尺度自我变形、振荡自我推进、自我分裂和合并以及对抗重力的自我攀爬。这些引人入胜的机制源于液态金属的自适应表面张力，这种表面张力受环境导向的不对称化学反应调节，而这种化学反应在可调电势、金属成分和反应物比例方面存在差异。进一步的研究结果表明，这种液态实体可以自主攀爬高达 5° 的斜坡，并穿越复杂的地形。此外，它还在障碍物导航方面展示了强大的变形能力和令人印象深刻的适应性。预计该功能实体将为未来的研究奠定基础，将液态金属定位为开发仿生生命物质的模型，并推动先进自然模拟系统的构建。

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来源期刊

Matter MATERIALS SCIENCE, MULTIDISCIPLINARY-

CiteScore

26.30

自引率

2.60%

发文量

367

期刊介绍： Matter, a monthly journal affiliated with Cell, spans the broad field of materials science from nano to macro levels,covering fundamentals to applications. Embracing groundbreaking technologies,it includes full-length research articles,reviews, perspectives,previews, opinions, personnel stories, and general editorial content. Matter aims to be the primary resource for researchers in academia and industry, inspiring the next generation of materials scientists.