Abstract: The invention relates to a magnetic-field driven colloidal microbot that employs wall-based propulsion, method of forming the microbot and a method of using the microbot. The microbot can be formed in situ with the use of magnetic fields, and the magnetic fields can be used to translate the microbot to a specified location in a patient. The microbot does not depend on “swimming” or flow currents within a patient to move, but instead can propel itself along a surface using a magnetic field. Once the magnetic field is removed, the microbot disassembles into colloidal particles.

Abstract: The invention relates to a magnetic-field driven colloidal microbot that employs wall-based propulsion, method of forming the microbot and a method of using the microbot. The microbot can be formed in situ with the use of magnetic fields, and the magnetic fields can be used to translate the microbot to a specified location in a patient. The microbot does not depend on “swimming” or flow currents within a patient to move, but instead can propel itself along a surface using a magnetic field. Once the magnetic field is removed, the microbot disassembles into colloidal particles.

Abstract: A device and related method for separating nanometer particles is disclosed and described. The device can include a microfluidic system including a sample input port, a fluid flow channel, and a sample output port, in which the fluid flow channel is defined by a pair of electrode walls and an insulator. A voltage device is electrically coupled to the electrode walls. The voltage device is comprised of a diode or a resistor configured to provide an electrical field within the fluid flow channel suitable for separation of nanoparticles from one another by causing a net effect of moving particles toward one of the electrode walls.