US Patent 11686705 Gel electrophoresis for DNA purification

Systems and methods for identifying DNA strand size and purifying the DNA based on strand size using electrophoresis. The methods include moving, via voltage, a plurality of DNA strands through a separation gel from an inlet of a capillary or passage to either a first outlet or a second outlet dependent on the DNA strand length. In some implementations, the system is a capillary electrophoresis system. In other implementations, the system is a microfluidic lab-on-a-chip.