Material Technology

PROvendis offers nanotechnology-based materials, efficient testing methods and resource-saving composites for licensing, to purchase or for development cooperation.

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Recycling of coated light metals

Much of Europe has a circular economy in which most metallic materials, such as various construction materials and beverage cans made of aluminum, are recycled. Fundamentally, two different forms of aluminum is used in industry.

Diagnostic tool for plasma processes

Low-temperature plasmas are used in semiconductor and medical technology and surface engineering. Production process precision and production reproducibility are a growing challenge, especially in semiconductor technology, where components are becoming increasingly smaller.


Industrial filter bags with catalytic properties are state of the art. They consist of a multi-layer fabric, containing catalytic particle in the intermediate space. Due to this construction, there is a huge pressure lost and cost for an additional fabric layer.

Retrofit polarization-maintaining in optical fibers (PM)

The invention of the University of Bonn relates to the development of a method to retrofit polarization- maintaining (PM) optical fibers in a way, that a routinated achievement of polarization to a degree better than 10-5 in extinction ratio takes place.

UHV-glass cell

The invention consists of a glass cell featuring an ultra-low birefringence (around 10–8) with an outstanding optical access due to its compact dodecagonal shape.


The present invention "Air-Retaining Grids Technology" describes a new possibility for the architecture and construction of surfaces which are able to keep a layer of gas stable even under changing pressure conditions when immersed in liquid. Structured, non-wettable surfaces are used for various applications, for example as self-cleaning surfaces.

Full Inorganic Load Bearing Insulator

Scientists of the University of Duisburg-Essen developed in cooperation with the German Aerospace Center (DLR) a full inorganic insulation material with high performance qualities.

Coupling Element

The developed coupling element is used to clamp the material sample to be tested in the test system, whereby the elongated sample is usually mounted parallel (and not orthogonally as is usually the case) to the ultrasonic wave to be introduced.

5-HMF biopolymers

The present invention relates to polymers from renewable raw materials, as well as monomeric precursors for the production of furan-containing polymers and a production process of both the polymers and the precursors. The 5-HMF derivatives serve as monomers for, among others, biodegradable polyesters, polyamides, polyimines and polyurethanes.

Polymer GRIN

The invention describes a new manufacturing process for GRIN plastic optics, in which extruded films with a defined refractive index gradient are rolled up and sintered. This makes it possible to manufacture lenses with any aperture and adjustable refractive index variation.


An Invention for prevention of bacterial infection by applying an antimicrobial latex for a surface coating that is mechanically stabilized by chemical or photochemical crosslinking

Solar capsule

Solar energy is generated from solar panels or photovoltaic systems in solar farms or on house roofs. An invention by the University of Siegen based on a dye-sensitized solar cell (DSSC) now makes it possible to manufacture affordable thin-film solar cells that can be applied to any surface like paint.

Quantum Dot Arrays

Nanostructures are suitable for the fabrication of optoelectronic devices, but their fabrication is costly. Their utility, however, is immense: mode profiles can be created in a direct way, for example, to "attract" lasers or to adjust densities for single quantum dot applications such as single photon sources.

Hydrophobic Phytic Acid Conversion

The innovation presented here concerns the production and use of hydrophobic phytic acid derivatives as an environmentally friendly alternative to conventional phosphate corrosion protection pre-treatments for steel.

Window for high temperatures

For the monitoring of highly complex processes in closed reaction vessels, it would often be desirable to be able to observe the process and monitor it by means of optical measuring systems.

Color flop effects without interference pigments

It is an innovative, cost-effective application method for the creation of color flop effects by means of effect pigments without costly interference pigments.

Determination of the degree of curing of a coating

The method is based on the fact that the polymer network in a cured coating is denser than in a coating that is less cured. It concerns a method by which chemical cross-linking and thus suitability for further processing can be determined for a system of coatings.


Scientists from Hamm-Lippstadt University of Applied Sciences and the University of Siegen have developed halogen-free polystyrenes that intrinsically contain flame retardant components in the polymer chain.

On the trail of plasma

Plasmas are used in a wide range of technical applications, including semiconductor technology. Plasma etching and plasma-induced material deposition are used to remove functional layers in a structured manner or to selectively generate surface hardening, cleaning and activation on the target surface.

Oil float

Previous solutions or approaches to the elimination of oil spills on water surfaces consist either of actively working pumps, chemicals or materials that absorb the oil and then have to be cleaned or disposed of.

Future Display Technology

The presented technology is a two dimensional optical waveguide with very low attenuation.