CD-spelare kan konverteras till häftig labbscanner och processor

Fixing two additional light sensors to a normal CD or DVD drive can transform it into a highly accurate scanner for chemical or medical tests, Spanish researchers have shown. The team has developed a modified CD drive that detected tiny quantities of pesticide in samples placed on top of an ordinary compact disk.

This paper presents an integrated microfluidic device on a compact disk (CD) that performs an enzyme-linked immunosorbent assay (ELISA) for rat IgG from a hybridoma cell culture. Centrifugal and capillary forces were used to control the flow sequence of different solutions involved in the ELISA process. The microfluidic device was fabricated on a plastic CD. Each step of the ELISA process was carried out automatically by controlling the rotation speed of the CD.