The BioLayer Interferometry technique allows the direct quantification of biomolecules offering a valid and rapid alternative to ELISA tests and chromatographic measurements. The technique takes advantage of specific sensors to “capture” the active molecules present in solution. The association speed of these molecules on the sensor is proportional to their concentration. The sensors can be used in “dip-and-read” mode or can be created specifically for the detection and quantification of any biomolecule. The system enables the simultaneous analysis of 8 sensors using standard 96-well plates that can be analyzed in less than 30 minutes.