Unlike traditional robots of the past, with harsh
and broken movements, soft robots are modelled after living organisms,
manufactured out of flexible materials, and controlled in unique ways. The goal
of this research is to develop a minimally invasive micro-robotic device that
would move within brain tissue without damaging it. Such devices can be
inserted into the brain to treat Parkinson disease or monitor epileptic events.
The principle that guides this research is dielectrophoretic force. This force is experienced by polarizable micro-particles suspended in a polarizable medium when immersed in a non-uniform electric field. Previously, it has been used to control and trap particles and cells for the purpose of separation and micro-analysis. Dielectrophoretic force can also be used to create wave-like movements of micro-particles between two soft polymer sheets which will generate its worm-like propulsion.
In this research project, electric fields and dielectrophoretic forces are modeled for a device design based on interlaced electrodes. The models are then employed to design a flexible circuit board consisting of an appropriate micro-electrode array that will be sealed with a polymer film filled with fluid and microparticles.
The principle that guides this research is dielectrophoretic force. This force is experienced by polarizable micro-particles suspended in a polarizable medium when immersed in a non-uniform electric field. Previously, it has been used to control and trap particles and cells for the purpose of separation and micro-analysis. Dielectrophoretic force can also be used to create wave-like movements of micro-particles between two soft polymer sheets which will generate its worm-like propulsion.
In this research project, electric fields and dielectrophoretic forces are modeled for a device design based on interlaced electrodes. The models are then employed to design a flexible circuit board consisting of an appropriate micro-electrode array that will be sealed with a polymer film filled with fluid and microparticles.