(a) The process of a gripper capturing and excising cells
from a cell cluster in the following steps, (i) a gripper and a cell cluster at
a distance; (ii) the gripper approached the cell cluster guided by magnetic
field; (iii) the gripper reached the desired location; (iv) upon temperature
increase, the gripper grasped a few cells; (v) the gripper was dragging the
captured cells away from the cluster by changing directions of magnetic field;
(vi) the gripper successfully excised cells and moved them away.
(b) Immunofluorescence images of suspended fibroblast cells
captured by the grippers: (i) side view of a captured single cell, (ii) two
cells captured inside a gripper. Cells were fixed and stained for nuclei (DAPI,
blue), and β-tubulin (antibody labeling, green).