Bi-functional Magnetic Microcarriers for Point-of-Care Diagnostics

A novel type of microcarrier is presented, where a re-writable magnetic barcode is used to carry information. This technology has several advantages over the optical-based alternatives, whilst benefiting from the high-throughput of a microfluidic tool. Here, we present two different surface chemistries used to attach a probe and a control strand of DNA to an individual microcarrier. This is demonstrated with red and green fluorophores, clearly seen on either side.