US 11,657,940 B1
Methods and apparatus for microagent control
Dong Sun, Hong Kong (CN); Dongfang Li, Hong Kong (CN); and Liuxi Xing, Hong Kong (CN)
Assigned to City University of Hong Kong, Hong Kong (CN)
Filed by City University of Hong Kong, Hong Kong (CN)
Filed on Nov. 9, 2021, as Appl. No. 17/454,077.
Int. Cl. H01H 47/00 (2006.01); H01F 7/06 (2006.01); A61N 2/00 (2006.01)
CPC H01F 7/064 (2013.01) [A61N 2/002 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for controlling microagent in a workspace, comprising:
providing a plurality of magnetic sources; and
generating a rotating gradient magnetic field by activating the plurality of magnetic sources differently such that a driving force is created to drive the microagent towards an aggregation center in the workspace.