Fabrication and Characterization Biomimetic Micro Actuators Using Ferrofluid-Silicone Composite Cantilevers

Abstract:

In this paper we have developed a simple and inexpensive method to fabricate cilia-like silicone rubber-ferrofluid composite cantilever beams. The technique described can generate highly reproducible arrays of these microcantilevers ranging from 1 mm to 0.4 mm in diameter. We use a laser cutter to create moulds for the cantilevers making it a low cost and reliable process. The iron particles from the ferrofluid can uniformly dispersed, randomly arranged or isolated on the tip of the cantilever. Cantilevers with 400 μm diameter and up to 10 mm length are tested with low magnetic field of 15mT. We obtained maximum deflection of 82.5^o at 44 mT magnetic field.

• Periodical: Nano Hybrids and Composites (Volume 30)
• Pages: 79-86
• DOI: https://doi.org/10.4028/www.scientific.net/NHC.30.79
• Online since: November 2020
• Authors: Shridhar Sampatrao Deshmukh*, Priam V. Pillai
• Keywords: Cantilever, Ferrofluid, Magnetic Micro-Actuators, Silicone

References

[1] A. Ghanbari, M. Bahrami, A novel swimming microrobot based on artificial cilia for biomedical applications,, Journal of Intelligent & Robotic Systems 63, pp.399-416,(2011).

DOI: 10.1007/s10846-010-9516-6

[2] S. Odenbach, Ferrofluidsmagnetically controlled suspensions, Colloids and Surfaces, A: Physicochemical and Engineering Aspects 217, pp.171-178,(2003).

DOI: 10.1016/s0927-7757(02)00573-3

[3] Z. Ding, P. Wei, B. Ziaie, Ferro-paper actuators,, in: Micro Electro Mechanical Systems (MEMS), 2010 IEEE 23rd International Conference on, IEEE, pp.1127-1130.

DOI: 10.1109/memsys.2010.5442409

[4] Zaibudeen, A.W. and Philip, J., 2018. Temperature and pH sensor based on functionalized magnetic nanofluid. Sensors and Actuators B: Chemical, 268, pp.338-349.

DOI: 10.1016/j.snb.2018.04.098

[5] G. Filipcsei, I. Csetneki, A. Szilagyi, M. Zrinyi, Magnetic field-responsive smart polymer composites,, in: Oligomers-Polymer Composites-Molecular Imprinting, Springer, 2007, pp.137-189.

DOI: 10.1007/12_2006_104

[6] Doganay, S., Cetin, L., Ezan, M.A. and Turgut, A., 2020. A rotating permanent magnetic actuator for micropumping devices with magnetic nanofluids. Journal of Micromechanics and Microengineering, 30(7), p.075012.

DOI: 10.1088/1361-6439/ab8dd1

[7] J. D. Carlson, M. R. Jolly, Mr fluid, foam and elastomer devices,, mechatronics 10, pp.555-569, (2000).

DOI: 10.1016/s0957-4158(99)00064-1

[8] R. Perez-Castillejos, J. Plaza, J. Esteve, P. Losantos, M. Acero, C. Cane, F. Serra-Mestres, The use of ferrofluids in micromechanics,, Sensors and Actuators A: Physical 84, pp.176-180, (2000).

DOI: 10.1016/s0924-4247(99)00318-0

[9] Shawgo, R.S., Grayson, A.C.R., Li, Y. and Cima, M.J., 2002. BioMEMS for drug delivery. Current Opinion in Solid State and Materials Science, 6(4), pp.329-334.

DOI: 10.1016/s1359-0286(02)00032-3

[10] Banis, G., Tyrovolas, K., Angelopoulos, S., Ferraro, A. and Hristoforou, E., 2020. Pushing of Magnetic Microdroplet Using Electromagnetic Actuation System. Nanomaterials, 10(2), p.371.

DOI: 10.3390/nano10020371

[11] B. Evans, A. Shields, R. L. Carroll, S. Washburn, M. Falvo, R. Superfine, Magnetically actuated nanorod arrays as biomimetic cilia,, Nano letters7, pp.1428-1434, (2007).

DOI: 10.1021/nl070190c