Technology Offerings

Scientists from Goethe University of Frankfurt/Main synthesized novel arylborane compounds with extraordinary electronic, chemical, and optical properties. The novel blue fluorescent dyes are well suited for use in organic light emitting diodes (OLEDs).

The novel class of fluorophores with high quantum efficiencies is built around a pyrazole unit. These compounds exhibit emission maxima at around 380 nm. Additionally to high quantum efficiency and chemical resistance, the molecules provide a polar anchoring group enabling straightforward substrate attachment.

The invention provides the switching of magnetic properties in isolated (magnetically non–interacting) molecules in solution. Switching from the diamagnetic to the paramagnetic state is performed by irradiation with blue‐green light (500 nm), and the conversion back to the diamagnetic form is induced with blue‐violet light (435 nm). The process is fully reversible. No fatigue or degradation is observed after several thousand cycles at room temperature under air. In spite of the extremely high photosensitivity, the thermal conversion of the high energy paramagnetic state to the diamagnetic ground state is very slow (t1/2 at 54°C: 27 hours).
The invention can be used as optical storage media, switchable contrast agent for magnetic resonance imaging (dynamic MRI) and for contact free manipulation of objects.

A new family of layered titanates containing chemically bound unsaturated amine enables the fixation and immobilization of radioactive iodine-129 and iodine-131 from gaseous products of nuclear fission.

A new family of titanates, niobates and tantalates containing chemically bound functional multivalent polyamines enables surface binding of nucleic acids.

Adhesive microstructure of surfaces: anisotropic attraction generated by isotropic –easy to produce- components.