Electrically driven heartbeat effect of gallium-based liquid metal on a ratchet

被引:2
|
作者
Wang, Shutong [1 ,2 ]
Zhang, Yue [3 ]
Wang, Jiuyang [1 ]
Ren, Dongmei [2 ]
Yu, Zhenwei [1 ,4 ]
机构
[1] Chinese Acad Sci, Shenzhen Inst Adv Technol, Shenzhen Inst Adv Elect Mat, Shenzhen, Peoples R China
[2] Bohai Univ, Coll Chem & Mat Engn, Jinzhou, Peoples R China
[3] Chinese Acad Sci, Tech Inst Phys & Chem, Key Lab Bioinspired Mat & Interfacial Sci, Beijing, Peoples R China
[4] Beihang Univ, Sch Chem, Key Lab Bioinspired Smart Interfacial Sci & Techno, Minist Educ, Beijing, Peoples R China
基金
中国国家自然科学基金;
关键词
liquid metal; heartbeat; asymmetric structure; surface tension; droplet manipulation; SURFACE-TENSION;
D O I
10.3389/fbioe.2022.1094482
中图分类号
Q81 [生物工程学(生物技术)]; Q93 [微生物学];
学科分类号
071005 ; 0836 ; 090102 ; 100705 ;
摘要
The realization of the liquid metal heartbeat effect shows better controllability under non-periodic stimuli than spontaneous oscillation or periodic stimuli. However, adjusting the liquid metal heartbeat performance, drop spreading area, and frequency, solely by the magnitude of the voltage, has great limitations. Here, we demonstrate that the eGaIn drop can beat inside graphite ring electrodes under DC voltage in alkaline solutions on ratchet substrates. These sawtooth structures provide asymmetric textures which influence liquid metal deformation during the beating of the heart. We achieved heartbeat frequencies from 2.7 to 4.8 Hz, a 100% increase in the tunable frequency range compared to that on a flat surface. The oxidative spreading of the eGaIn drop on the ratchet substrate shows that the drop penetrates into the grooves of the sawtooth structure. Moreover, we investigated the physical mechanisms affecting the eGaIn heartbeat frequency and the influence on the spreading area of the eGaIn drop at various sawtooth sizes and orientations. These findings not only enhance our understanding of droplet manipulation on sawtooth-structured surfaces but also facilitate the design of microfluidic pump systems.
引用
收藏
页数:7
相关论文
共 50 条
  • [41] Responsive Gallium-Based Liquid Metal Droplets: Attributes, Fabrication, Response Behaviors, and Applications
    Hu, Qingming
    Hu, Fengshi
    Sun, Dandan
    Zhang, Kailiang
    COATINGS, 2024, 14 (08)
  • [42] A Surface Modification Approach to Overcome Wetting Behavior of Gallium-Based Liquid Metal Droplets
    Kumar, Ravinder
    Ghai, Viney
    Sahani, Ashish Kumar
    IEEE TRANSACTIONS ON NANOTECHNOLOGY, 2022, 21 : 158 - 162
  • [43] GALLIUM-BASED LIQUID-METAL FULL-FILM LUBRICATED JOURNAL BEARINGS
    GERKEMA, J
    ASLE TRANSACTIONS, 1985, 28 (01): : 47 - 53
  • [44] Elastohydrodynamic lubrication behaviors and mechanisms of gallium-based liquid metal/polydimethylsiloxane composite lubricant
    Si, Yanxin
    Liu, Qiang
    Cao, Xinjian
    Guo, Jie
    Cheng, Jun
    Zhu, Shengyu
    Yang, Jun
    Liu, Weimin
    TRIBOLOGY INTERNATIONAL, 2024, 193
  • [45] Specific adsorption induced electric double layer on gallium-based liquid metal electrode
    Gao, Xiongfei
    Zhang, Lu-Wen
    Liew, K. M.
    APPLIED SURFACE SCIENCE, 2023, 636
  • [46] Lubricating behavior of gallium-based liquid metal for Cu/Al tribo-pair
    Ma, Jiqiang
    Zhang, Xuhu
    Guo, Jie
    Tan, Hui
    Cheng, Jun
    Zhu, Shengyu
    Yang, Jun
    TRIBOLOGY INTERNATIONAL, 2024, 200
  • [47] Research Progress on Applications of Gallium-based Liquid Metal in Wearable Devices and Smart Clothing
    Wen Z.
    Chen J.
    Wang Y.
    Xiao H.
    Cailiao Daobao/Materials Reports, 2022, 36 (09):
  • [48] Design optimization and experimental validation of the gallium-based liquid metal flexible strain sensor
    Sun Y.
    Wang Z.
    Han Z.
    Liu W.
    Yi Qi Yi Biao Xue Bao/Chinese Journal of Scientific Instrument, 2023, 44 (01): : 16 - 26
  • [49] Divide and Conquer: Design of Gallium-Based Liquid Metal Particles for Soft and Stretchable Electronics
    Park, Gyeongsuk
    Lee, Gun-Hee
    Lee, Wonbeom
    Kang, Jiheong
    Park, Seongjun
    Park, Steve
    ADVANCED FUNCTIONAL MATERIALS, 2024, 34 (31)
  • [50] Effects of metal element doping on the lubrication behaviors and mechanisms of gallium-based liquid metals
    Liu, Qiang
    Si, Yanxin
    Cao, Xinjian
    Cheng, Jun
    Zhu, Shengyu
    Xu, Rengen
    Guo, Jie
    Yang, Jun
    Liu, Weimin
    WEAR, 2024, 538