Fabrication and Manipulation of Ciliary Microrobots with Non-reciprocal Magnetic Actuation.

ABSTRACT: Magnetically actuated ciliary microrobots were designed, fabricated, and manipulated to mimic cilia-based microorganisms such as paramecia. Full three-dimensional (3D) microrobot structures were fabricated using 3D laser lithography to form a polymer base structure. A nickel/titanium bilayer was sputtered onto the cilia part of the microrobot to ensure magnetic actuation and biocompatibility. The microrobots were manipulated by an electromagnetic coil system, which generated a stepping magnetic field to actuate the cilia with non-reciprocal motion. The cilia beating motion produced a net propulsive force, resulting in movement of the microrobot. The magnetic forces on individual cilia were calculated with various input parameters including magnetic field strength, cilium length, applied fi

SUBMITTER: Kim S 

PROVIDER: S-EPMC4965827 | biostudies-literature | 2016 Jul

REPOSITORIES: biostudies-literature