Journal
MICROMACHINES
Volume 10, Issue 12, Pages -Publisher
MDPI
DOI: 10.3390/mi10120865
Keywords
microrobotics; magnetic control; low Reynolds number
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Funding
- National Natural Science Foundation of China (NSFC) [51850410516]
- Department of Education of Guangdong Province [2017KTSCX167]
- Science and Technology Innovation Committee Foundation of Shenzhen [JCYJ20180302174151692]
- Shenzhen municipal government (Peacock Plan) [20181119590C]
- NSF FAMU CREST Center award [1735968]
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Robotic micro/nanoswimmers can potentially be used as tools for medical applications, such as drug delivery and noninvasive surgery. Recently, achiral microswimmers have gained significant attention because of their simple structures, which enables high-throughput fabrication and size scalability. Here, microparticle image velocimetry (mu-PIV) was used to study the hydrodynamics of achiral microswimmers near a boundary. The structures of these microswimmers resemble the letter L and were fabricated using photolithography and thin-film deposition. Through mu-PIV measurements, the velocity flow fields of the microswimmers rotating at different frequencies were observed. The results herein yield an understanding of the hydrodynamics of the L-shaped microswimmers, which will be useful in applications such as fluidic manipulation.
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