Microfluidic device with DEP arrays

A microfluidic device comprising:

• a plurality of microfluidic channels and a plurality of corresponding dielectrophoresis (DEP) electrode arrays, wherein each microfluidic channel is configured to direct fluid over a DEP electrode array, and
• at least one first connection point and at least one second connection point configured to connect the microfluidic device to an alternating current source,
• wherein:
• a first input of each DEP electrode array is connected to the at least one first connection point via a first conductor, and
• a second input of each DEP electrode array is connected to the at least one second connection point via a second conductor, and
• an electrical resistance of the first conductor between the first input of each DEP electrode array and the at least one first connection point, and an electrical resistance of the second conductor between the second input of each DEP electrode array and the at least one second connection point is each substantially at least an order of magnitude less than a total electrical resistance of the plurality of DEP electrode arrays,
• wherein the first and second conductors comprise conducting leads comprising a conducting material deposited on a substrate, and
• wherein each of the conducting leads comprises one or more internal gaps absent the conducting material to increase an edge-length of the conducting leads.