Magnetic nanofluid-based liquid marble for a self-powered mechanosensation

Abstract

Magnetic nanofluid possesses the characteristic of interfering with the propagation of the magnetic field, endowing it with the sensing property in motion. However, the residual adhesion of magnetic nanofluid as it flows over solid surfaces remains an open question. Liquid marbles allow for quantities of liquids to be encapsulated by hydrophobic particles, ensuring a unique nonstick property for utilization in different applications. In this study, being capsuled by hydrophobic nano-/microscale powders, a magnetic nanofluid-based liquid marble (MNLM) with well mechanical stability has been fabricated. A magnetic nanofluid posture detector (MNPD), which consists of an MNLM, a magnetic tube, and coils, has been assembled that can convert mechanical energy to electricity as it freely rolls on the solid surface. Gesture recognition can be achieved when combining five MNPDs with fingers. The fabricated MNPD possesses a good signal recognition capability, which can separately distinguish the bending of each finger. Moreover, a variety of language hand gestures with specific meanings (digits, letters, “OK,” and “I Love You”) can be further recognized through corresponding combinations. The potential of MNPD in the realm of gesture recognition will offer a novel avenue for flexible wearables.

References

[1] Zhang J, Wang X, Wang Z, et al. Wetting ridge assisted programmed magnetic actuation of droplets on ferrofluid-infused surface. Nat Commun. 2021;12:7136.

[2] Dai Q, Nelson A. Magnetically-responsive self-assembled composites. Chem Soc Rev. 2010;39:4057-4066.

[3] Holm C, Weis J. The structure of ferrofluids: a status report. Curr Opin Colloid Interface Sci. 2005;10:133-140.

[4] Ho D, Sun X, Sun S. Monodisperse magnetic nanoparticles for theranostic applications. Acc Chem Res. 2011;44:875-882.

[5] Philip J. Magnetic nanofluids (Ferrofluids): recent advances, applications, challenges, and future directions. Adv Colloid Interface Sci. 2023;311:102810.

[6] Wu Z, Guo H, Ding W, Wang Y, Zhang L, Wang Z. A hybridized triboelectric-electromagnetic water wave energy harvester based on a magnetic sphere. ACS Nano. 2019;13:2349-2356.

[7] Cao X, Jie Y, Ma P, Wang Z. Wherever there is a dynamic touch, there is electromagnetic field-a discovery for power generation. Nano Energy. 2020;78:105314.

[8] Wu H, Wang Q, Wu Z, et al. Multi-material additively manufactured magnetoelectric architectures with a structure-dependent mechanical-to-electrical conversion capability. Small Methods. 2022;6:e2201127.

[9] Khiabani SS, Farshbaf M, Akbarzadeh A, Davaran S. Magnetic nanoparticles: preparation methods, applications in cancer diagnosis and cancer therapy. Artif Cells Nanomed Biotechnol. 2017;45:6-17.

[10] Zhang S, Xu Y, Li Z, et al. On-demand 3D spatial distribution of magnetic permeability based on Fe₃O₄ nanoparticle liquid toward micro-cavity detectors. Small. 2023;202306340.

[11] Wu H, Liu Z, Gao M, et al. Electric power generated from magnetic nanofluid droplets sliding upon superslippery surfaces. ACS Appl Mater Interfaces. 2023;15:59573-59581.

[12] Xu Y, Zhang S, Li S, et al. A soft magnetoelectric finger for robots’multidirectional tactile perception in non-visual recognition environments. npj Flex Electron. 2024;8:2.

[13] Pike N, Richard D, Foster W, Mahadevan L. How aphids lose their marbles. Proc R Soc Lond B Biol Sci. 2002;269:1211-1215.

[14] Weiss MR. Defecation behavior and ecology of insects. Annu Rev Entomol. 2006;51:635-661.

[15] Aussillous P, Quéré D. Liquid marbles. Nature. 2001;411:924-927.

[16] Fujii S, Si Yusa, Nakamura Y. Stimuli-responsive liquid marbles: controlling structure, shape, stability, and motion. Adv Funct Mater. 2016;26:7206-7223.

[17] Bindhu S, Subramanyan NV. Janus liquid marbles: fabrication techniques, recent developments, and applications. Droplet. 2023;2:e44.

[18] Asare-Asher S, Connor JN, Sedev R. Elasticity of liquid marbles. J Colloid Interface Sci. 2015;449:341-346.

[19] Whyman G, Bormashenko E. Interpretation of elasticity of liquid marbles. J Colloid Interface Sci. 2015;457:148-151.

[20] Liu Z, Fu X, Binks BP, Shum HC. Mechanical compression to characterize the robustness of liquid marbles. Langmuir. 2015;31:11236-11242.

[21] Cengiz U, Erbil HY. The lifetime of floating liquid marbles: the influence of particle size and effective surface tension. Soft Matter. 2013;9:8980-8991.

[22] Xu Z, Zhao Y, Dai L, Lin T. Multi-responsive Janus liquid marbles: the effect of temperature and acidic/basic vapors. Part Syst Charact. 2014;31:839-842.

[23] Dorvee JR, Sailor MJ, Miskelly GM. Digital microfluidics and delivery of molecular payloads with magnetic porous silicon chaperones. Dalton Trans. 2008:721-730.

[24] Bormashenko E, Pogreb R, Bormasheklgggguinko Y, Musin A, Stein T. New investigations on ferrofluidics: ferrofluidic marbles and magnetic-field-driven drops on superhydrophobic surfaces. Langmuir. 2008;24:12119-12122.

[25] Brown CV, Al-Shabib W, Wells GG, McHale G, Newton MI. Amplitude scaling of a static wrinkle at an oil-air interface created by dielectrophoresis forces. Appl Phys Lett. 2010;97:242904.

[26] Newton MI, Herbertson DL, Elliott SJ, Shirtcliffe NJ, McHale G. Electrowetting of liquid marbles. J Phys D: Appl Phys. 2007;40:20-24.

[27] Choi K, Ng AHC, Fobel R, Wheeler AR. Digital microfluidics. Annu Rev Anal Chem. 2012;5:413-440.

[28] Wang WX, Bray CL, Adams DJ, Cooper AI. Methane storage in dry water gas hydrates. J Am Chem Soc. 2008;130:11608-11609.

[29] Croissant JG, Butler KS, Zink JI, Brinker CJ. Synthetic amorphous silica nanoparticles: toxicity, biomedical and environmental implications. Nat Rev Mater. 2020;5:886-909.

[30] Tyowua AT, Yiase SG, Binks BP. Double oil-in-oil-in-oil emulsions stabilised solely by particles. J Colloid Interface Sci. 2017;488:127-134.

[31] Tenjimbayashi M, Watanabe Y, Nakamura Y, Naito M. Exceptional robustness and self-reconfigurability of liquid marbles on superhydrophobic substrate. Adv Mater Interfaces. 2020;7:2000160.

[32] Anyfantakis M, Jampani VSR, Kizhakidathazhath R, Binks BP, Lagerwall JPF. Responsive photonic liquid marbles. Angew Chem-Int Ed. 2020;59:19260-19267.

[33] Yamazaki T, Tenjimbayashi M, Manabe K, et al. Antifreeze liquid-infused surface with high transparency, low ice adhesion strength, and antifrosting properties fabricated through a spray layer-by-layer method. Ind Eng Chem Res. 2019;58:2225-2234.

[34] Li Y, Li Z, Wang Q, et al. 3D-printed magnetic porous structures with different Poisson’s ratios and their mechanoelectrical conversion capabilities. Addit Manuf. 2023;69:103542.

[35] Ma Z, Ai J, Shi Y, Wang K, Su B. A superhydrophobic droplet-based magnetoelectric hybrid system to generate electricity and collect water simultaneously. Adv Mater. 2020;32:2006839.

[36] Hu Z, Kanagaraj J, Hong HP, et al. Characterization of ferrite magnetic nanoparticle modified polymeric composites by modeling. J Magn Mater. 2020;493:165735.

[37] Ma Z, Ai J, Yue Y, Wang K, Su B. A superhydrophobic magnetoelectric generator for high-performance conversion from raindrops to electricity. Nano Energy. 2021;83:105846.

[38] Zhang X, Ai J, Ma Z, Yin Y, Zou R, Su B. Liquid metal based stretchable magnetoelectric films and their capacity for mechanoelectrical conversion. Adv Funct Mater. 2020;30:2003680.

[39] Li Y, Chen P, Wu Z, et al. A nonradiographic strategy to real-time monitor the position of three-dimensional-printed medical orthopedic implants by embedding superparamagnetic Fe₃O₄ particles. Interdiscip Mater. 2024;3:133-149.

[40] Shi Y, Tang S, Zhang W, et al. A reliable, battery-free and implantable magnetic sensing system for wireless monitoring of spinal motion in rats and humans. Chem Eng J. 2024;482:148891.

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2024 The Author(s). Droplet published by Jilin University and John Wiley & Sons Australia, Ltd.