期刊
MICROMACHINES
卷 10, 期 4, 页码 -出版社
MDPI
DOI: 10.3390/mi10040230
关键词
alginate capsules; magnetic nanorods; magnetic microrobots; tumbling robots; surface walkers; rotating magnetic fields; micromanipulation
类别
资金
- NIST/U.S. Department of Commerce, U.S. Federal award [70NANB16H193]
- U.S. National Science Foundation [IIS-1358446, CMMI-1662641]
- National Institutes of Health [R01 DK106972]
- NSF/ASEE [IIP-1059286]
Soft, untethered microrobots composed of biocompatible materials for completing micromanipulation and drug delivery tasks in lab-on-a-chip and medical scenarios are currently being developed. Alginate holds significant potential in medical microrobotics due to its biocompatibility, biodegradability, and drug encapsulation capabilities. Here, we describe the synthesis of MANiACsMagnetically Aligned Nanorods in Alginate Capsulesfor use as untethered microrobotic surface tumblers, demonstrating magnetically guided lateral tumbling via rotating magnetic fields. MANiAC translation is demonstrated on tissue surfaces as well as inclined slopes. These alginate microrobots are capable of manipulating objects over millimeter-scale distances. Finally, we demonstrate payload release capabilities of MANiACs during translational tumbling motion.
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