A grasping tool device for delicately grasping tissue comprising: a plurality of electro-osmotic pumps, each electro-osmotic pump comprises a first and a second chambers separated by a first membrane so that when placed in contact with the tissue and when subjected to electric field force liquid in the first chamber to move to the second chamber, inducing sub-pressure in the first chamber and causing at least one second membrane to retract, thus effectively grasping the tissue. The electro-osmotic pumps are mounted on a support and connected to a control unit.
