Bayer Aktiengesellschaft

Bayer Technology Services Gmbh

Agfa-gevaert Ag

Agfa Gevaert Nv

Bayer Intellectual Property Gmbh

Covestro Deutschland Ag

Leibniz-institut Fuer Neue Materialien Gemeinnuetzige Gmbh

Centrum Fur Angewandte Nanotechnologie (can) Gmbh

Leibniz-institut Fur Neue Materialien Gem. Gmbh

Adverio Pharma Gmbh

Leibniz-institut Fur Neue Materialien Gemeinnutzige Gmbh

Werner Hoheisel

Horst Berneth

Helmut Schmidt

Friedrich-Karl Bruder

Peter Fey

Burkhard Köhler

Thomas Fäcke

Thomas Rölle

Kerstin Bohmann

Jorg Hagemann

Markus Haase

Martin Döbler

Marc-Stephan Weiser

Dennis Hönel

Leslaw Mleczko

Ralph Nonninger

Daniel-Gordon Duff

Christiane Meyer

Martin Schichtel

Martin Jost

Rainer Hagen

Karlheinz Hildenbrand

Johan Kijlstra

Ralf Neigl

Günther Walze

Thomas Roelle

Peter R Nyssen

Daniel Gordon Duff

Peter Weuta

Ingmar Dorn

Gerd Passing

Reimer Holm

Juan Gonzalez-Blanco

Markus Longerich

Dirk Storch

Guido Becker

Björn Henninger

Anja Ehrig

Hermann-Jens Womelsdorf

Michal Sowa

Dirk Pfutzenreuter

Frank Rauscher

Thorsten Heidelberg

Hermann Womelsdorf

Heike Neumann

Kai B&uuml;tje

Stefan Haubold

Michael Ostendorf

Elisabeth Kersten

Joerg Brockob

Roman Heumann

Valentina Paula Conty

Christoph NÜBOLDT

Stephan c/o Hanosolutions Gmbh Haubold

The invention relates to an illumination device for illuminating at least one light modulator system of a liquid crystal display, the device comprising at least one waveguide substrate for guiding at least one targeted light beam that can be coupled into the waveguide substrate. The waveguide substrate is at least in optical contact with at least one holographic optical decoupling substrate comprising a plurality of decoupling regions and a decoupling region is at least designed to decouple part of the targeted light beam in the form of a plurality of sub-beams in the direction of the light modulator system. At least one diffuser module is provided, said diffuser module being designed in such a way that at least the outermost sub-beams of two neighboring decoupling regions are at least adjacent to one another before exiting the diffuser module.

Illumination device for a liquid crystal display

Nanoparticles having a hydrophilic surface coatings having biological, molecular biological, biochemical and medical applications, and method for their production.

Hydrophilic nanoparticles with functional surface groups, production and use thereof

Process for producing metal particle sols having a metal particle content of &#x2267;1 g/l, comprising the steps of

Method for producing metal particles, metal particles produced thereby, and the use thereof

Luminescent inorganic nanoparticles comprising: (a) a core made from a first metal salt or oxide being surrounded by (b) a shell made from a second metal salt or oxide being luminescent and having non-semiconductor properties. These nanoparticles can be advantageously used in (fluorescence) resonance energy transfer ((F)RET)-based bioassays in view of their higher (F)RET efficiency.

Luminescent core/shell nanoparticles suitable for (F)RET-assays

The invention relates to an assay based on resonance energy transfer (RET), comprising a first molecule grope A, which is marked with at least one energy donor, and at least one second molecule group B which is marked with at least one energy acceptor, the donor comprising a molecule or particle which can be energetically excited by an external radiation source and which is fluorescence enabled and the acceptor comprising a molecule or particle which can be excited by energy transfer via the donor with partial or complete quenching of the donor fluorescence, and the donor and/or acceptor comprise luminescing inorganic dope nanoparticles having an expansion of &#x2266;50 nanometers, emitting electromagnetic radiation with stokes or anti-stokes scattering after energetic excitation.

Assay based on doped nanoparticles

A process for synthesizing nanoparticles, in particular metal salt nanoparticles. To the synthesis mixture is added a modifying reagent which binds, by means of a first functional group, to the nanoparticle surface and which carries a second functional group for binding to molecules which are specifically selected in dependence on the subsequent use of the nanoparticles. This dispenses with a postsynthetic, separate, application-specific modification step. A new substance class, the pentaalkyl iminobis(methylenephosphono)carboxylates, are particularly suitable for this purpose. These modifying reagents permit the nanoparticles to grow in a specifically controlled manner and, at the same time, modify the surface of the growing nanoparticles, (in-situ) during the synthesis, such that the particles can be very readily dissolved in a large number of solvents and carry functional groups for coupling on molecules, resulting in the particles having, immediately after having been synthesized, a certain all-round usability.

Production and use of in situ-modified nanoparticles

An electrochromic device which carries a coating comprising at least one UV absorber and nanoparticles is effectively protected against destruction by UV light.

Electrochromic device with nanoparticles and UV-absorbers in the protective coating

A composition containing transparent thermoplastic polymers and a surface modified oxide particles is disclosed. The size of the particles is less than 200 nm and the composition is suitable for the preparation of products wherever diathermancy is undesirable.

IR absorbing compositions

The present invention provides compositions containing transparent thermoplastic polymer, surface-modified oxide particles with a particle size of less than 200 nm, and organic NIR absorbers. The compositions of the present invention may find use in reducing diathermancy in sheets, films, glazing systems and roofing systems which may be incorporated into automobiles and buildings.

IR-absorbing compositions

A method for the preparation of nano size zinc oxide particles having an average primary particle diameter of less than or equal to 15 nm, which are redispersible in organic solvents and/or water, by basic hydrolysis of at least one zinc compound in alcohol or an alcohol/water mixture. The hydrolysis is carried out with substoichiometric amounts of base, based on the zinc compound. The precipitate which originally forms during hydrolysis is left to mature until the zinc oxide has completely flocculated. This precipitate is then thickened to give a gel and separated off from the supernatant phase.

Nanoparticulate, redispersible zinc oxide gels

The present invention relates to a composite particle containing a solid inorganic or organic colorless support material and adherent to it an inorganic and/or organic pigment particle, wherein the pigment particle has an average particle size of 1 nm to 100 nm, comprises at least one primary pigment particle and the minimum average distance between two pigment particles is at least one quarter of the diameter of the primary pigment particle, whereby the modified inorganic and organic pigments, depending on the pigment material, can be used as IR light absorbers or as color-imparting agents and give rise to a negligible haze in the matrix.

Composite particles

This invention relates to electrochromic devices that are protected against UV light by nanoparticles.

UV protected electrochromic device

The present invention relates to pigment preparations containing (a) at least one pigment having an average primary particle size of 0.1 to 50 nm selected from the group consisting of carbides, nitrides, borides, and silicides of the elements Ti, Zr, Hf, Si, Ge, and Sn, (b) at least one dispersant having a weight average molecular weight (M.sub.w) greater than 1000, and (c) water. The invention further relates to the use of such pigment preparations in inks for ink-jet printing.

Ink-jet inks containing nanometer-size inorganic pigments

A color photographic recording material comprising at least one light sensitive silver halide emulsion layer and optionally a light insensitive layer which is disposed nearer the source of light than is the light sensitive silver halide emulsion layer, wherein at least one of said layers contains particles of cerium(IV) oxide, zinc oxide or barium titanate with an average diameter &lt;300 nm, is characterized by improved protection from UV light.

Color photographic recording material

A color photographic recording material which contains particles of elemental silicon and/or of solid compounds in which silicon is present in stoichiometric excess, having an average diameter of .ltoreq.120 nm, is distinguished by improved protection against UV radiation.

Growing community of inventors

Kö'ln, Germany

Werner Hoheisel