FOx Biosystems has its laboratories in Leuven. FOx Biosystems is a spin-off from the KU Leuven. The company offers superior analytical systems, consumables and services for the R&D instrumentation market and the bioprocessing market (development and production of bio-pharmaceuticals). The FOx Biosystems instrumentation uses fiber optic surface plasmon resonance (FO-SPR) to detect target molecules. The disposable sensor probe is coated with a gold layer and functionalized with bioreceptors. This sensor probe is then coupled to a cost-effective, reliable analytical benchtop instrument that enables real-time analysis of biomolecular interactions with a miniaturized optical unit. This instrument, priced at a fraction of competing technologies, was designed, developed and built to be easily operated by a non-specialized user. FOx’ sensor technology can be used in a label-free or labelled mode enabling the quantification of specific proteins, small molecules, DNA and cells in microliter volume samples. This allows scientists or process control analysis laboratories to perform biomolecular analysis in a faster, more robust and more versatile way than ever before.