Patent application number | Description | Published |
20100112234 | METHOD FOR THE CREATION OF PLANAR VARIATIONS IN SIZE OR DISTANCE IN NANOSTRUCTURE PATTERNS ON SURFACES - A method for creating extensive variations in size or distance in nanostructure patterns on surfaces preferably includes: a) contacting a substrate with a liquid phase containing organic two-block or multi-block copolymer micelles, which are charged with an inorganic metal compound, by immersion into this liquid phase, during which chemically different polymer domains including inorganic metal compounds enclosed in micelles are deposited on the substrate; b) withdrawing the substrate from the liquid phase at a predetermined withdrawing speed, which is varied continuously or gradually, so that a gradient of the lateral separation length of the polymer domains is produced on the substrate surface; c) converting the deposited inorganic metal compounds by an oxidation- or reduction treatment into inorganic nanoparticles and optionally complete or partial removal of the organic polymer by a plasma treatment, wherein positions and lateral separation length of the nanoparticles obtained are determined by those of deposited polymer domains. | 05-06-2010 |
20100318187 | SURFACE-STRUCTURED POLYURETHANE SUBSTRATES AND METHODS FOR PRODUCING THE SAME - A method for producing a polymeric surface-structured substrate includes: (a) preparing a first precursor substrate that is nanostructured on at least one surface with inorganic nanoparticles, (b) coating a hardenable substrate material for a second substrate different from the first precursor substrate material onto the nanostructured surface of the precursor substrate, wherein the hardenable substrate material includes cross-linkable monomeric, oligomeric or polymeric starting components for producing a polymeric substrate, (c) hardening the hardenable substrate material to obtain a polymeric substrate, and (d) separating the precursor substrate from the polymeric substrate as a result of which a polymeric substrate nanostructured with nanoparticles and including a polyurethane is obtained. | 12-16-2010 |
20110275539 | SUBSTRATE FOR SELECTING AND SPECIFICALLY INFLUENCING THE FUNCTION OF CELLS - The invention relates to a method and to a substrate for selecting and specifically influencing the function of cells by the adhesion thereof to substrate surfaces having prescribed properties. Said substrates comprise various surface regions each representing a condition affecting the cell adhesion and/or cell function, and said conditions are determined by a geometric property and/or a mechanical property or a combination of a geometric property and/or a mechanical property with a chemical property of each surface region. The invention further relates to analysis devices and to analysis methods using said substrates for identifying and selecting particular cell types, for identifying suitable substrate conditions for affecting a particular cell function or particular cell type or for identifying disease states characterized by a change in the cell type or cell function. | 11-10-2011 |
20110284820 | NANOWIRES ON SUBSTRATE SURFACES, METHOD FOR PRODUCING SAME AND USE THEREOF - The invention relates to a method for producing anchored nanowires on substrate surfaces. A method for producing anchored nanowires on a substrate which comprises no deposition steps from the gas phase with the steps:
| 11-24-2011 |
20120244322 | METHOD FOR SPATIALLY RESOLVED ENLARGEMENT OF NANOPARTICLES ON A SUBSTRATE SURFACE - The invention relates to a method for spatially resolving the enlargement and fine adjustment of precious metal nanoparticles according to size on a substrate surface and to the nanoparticle arrangements and nanostructured substrate surfaces thereby produced and to the use thereof. The invention particularly relates to a method for spatially resolving the enlargement of precious metal nanoparticles present on a substrate, comprising the following steps: a) providing a substrate coated by precious metal nanoparticles, b) optionally functionalizing the substrate by means of an agent which supports the adhesion of the precious metal nanoparticles to the substrate, c) contacting the substrate with a precious metal salt solution, d) UV irradiating the substrate in contact with the precious metal salt solution, thus creating a reduction of the precious metal salt and a currentless deposition of elementary precious metal on the precious metal nanoparticles and corresponding growth of the precious metal nanoparticles in the irradiated regions of the substrate, and e) optionally using a mask in order to create localized growth of the precious metal nanoparticles in predetermined regions of the substrate. | 09-27-2012 |
20120268823 | METHOD FOR THE PRODUCTION OF CONICAL NANOSTRUCTURES ON SUBSTRATE SURFACES - The invention relates to conical structures on substrate surfaces, in particular optical elements, to methods for the production thereof and to the use thereof, in particular in optical devices, solar cells and sensors. The conical nanostructures according to the invention are suitable in particular for providing substrate surfaces having very low light reflection. The method according to the invention for producing conical nanostructures on substrate surfaces comprises at least the steps of: a) providing a substrate surface covered with nanoparticles; b) etching the substrate surface covered with nanoparticles to a depth of at least 100 nm, wherein the nanoparticles act as an etching mask and the etching parameters are set in such a way that hyperboloid structures are produced underneath the nanoparticles; c) breaking the hyperboloid structures in the region of the smallest diameter by exerting mechanical forces, wherein the structures remaining on the substrate surface have a conical shape which corresponds substantially to half a single-shell hyperboloid. | 10-25-2012 |
20130236881 | THREE-DIMENSIONAL METAL-COATED NANOSTRUCTURES ON SUBSTRATE SURFACES, METHOD FOR PRODUCING SAME AND USE THEREOF - The invention relates to a method for producing column-shaped or conical nanostructures, wherein the substrate surface is covered with an arrangement of metal nanoparticles and etched, the nanoparticles acting as an etching mask and the etching parameters being set such that column structures or cone structures are created below the nanoparticles and the nanoparticles are preserved as a structural coating. | 09-12-2013 |
20130284690 | PROCESS FOR PRODUCING HIGHLY ORDERED NANOPILLAR OR NANOHOLE STRUCTURES ON LARGE AREAS - The present invention relates to an improved process for producing highly ordered nanopillar or nanohole structures, in particular on large areas, which can be used as masters in NIL, hot embossing or injection molding processes. The process involves decorating a surface with an ordered array of metal nanoparticles produced by means of a micellar block- copolymer nano-lithography process; etching the primary substrate to a depth of 50 to 500 nm, where the nanoparticles act as a mask and an ordered array of nanopillars or nanocones corresponding to the positions of the nanoparticles is thus produced; using the nanostructured master or stamp in a structuring processes. Also the finished nanostructured substrate surface can be used as a sacrificial master which is coated with a continuous metal layer and the master is then etched away to leave a metal stamp having an ordered array of nanoholes which is a negative of the original array of nanopillars or nanocones. | 10-31-2013 |
20140193745 | SUBSTRATE SURFACE STRUCTURED WITH THERMALLY STABLE METAL ALLOY NANOPARTICLES, A METHOD FOR PREPARING THE SAME AND USES THEREOF, IN PARTICULAR AS A CATALYST - The invention relates to a method for preparing a substrate surface structured with thermally stable metal alloy nanoparticles, which method comprises—providing a micellar solution of amphiphilic molecules such as organic diblock or multiblock copolymers in a suitable solvent; —loading the micelles of said micellar solution with metal ions of a first metal salt; —loading the micelles of said micellar solution with metal ions of at least one second metal salt; —depositing the metal ion-loaded micellar solution onto a substrate surface to form a (polymer) film comprising an ordered array of (polymer) domains; co-reducing the metal ions contained in the deposited domains of the (polymer) film by means of a plasma treatment to form an ordered array of nanoparticles consisting of an alloy of the metals used for loading the micelles on the substrate surface. The invention also provides a nanostructured substrate surface obtainable by said method as well as the use of said nanostructured substrate surface as a catalyst. | 07-10-2014 |