Microdispenser - PR1259028-3240-W

The Fraunhofer HHI is issuing a call for proposals for the procurement of a high-throughput, contactless microdispensing system for the precise application of minute volumes of liquid onto planar substrates, in particular photonic integrated sensor chips and sensor arrays. The system is intended for the development, optimization, and reproducible execution of biofunctionalization processes on SiN/SiO₂-based photonic integrated sensor chips. In this context, minute volumes of liquid must be applied with sub-micrometer precision to defined active sensor areas or sensor arrays. The specific surface chemistry and assay strategy are still under development. The microdispensing system must therefore be suitable for flexible research and development processes involving varying reagents, spotting layouts, and substrate geometries. The goal is to test various reagents, functionalization strategies, and spotting processes in a reproducible manner on individual sensor areas as well as on multiple chips or chip arrays. The system must enable the precise, gentle, and low-contamination dispensing of aqueous, biomolecular, and selected organic media.