Abstract: The present invention relates to a method for producing a product of a reaction catalysed by a nitrilase, which method comprises the steps (i) providing a microorganism comprising said nitrilase located on its surface, and/or a membrane preparation of said microorganism, and (ii) contacting the microorganism and/or the membrane preparation thereof with one or more nitrilase substrates under conditions compatible with nitrilase activity. The present invention further relates to a method for producing enantiomerically pure (R)-mandelic acid using the nitrilase-displaying whole cell biocatalyst or membrane preparation thereof for the conversion of racemic mandelonitrile.

Abstract: The present invention concerns micro-organisms which present cellulases on their surface. Corresponding micro-organisms were produced with the aid of corresponding plasmids which encode a section comprising a signal peptide, a heterologous cellulase, an optional protease recognition site, a transmembrane linker and a transporter domain of an autotransporter or a variant thereof. Such micro-organisms were advantageously used in the conversion of cellulose into cellobiose and/or glucose. It was also possible to recover the micro-organisms from the reaction mixture following conversion from simple substrates. Also, a combination of various micro-organisms, which were populated with exocellulases, endocellulases and beta-glucosidases, were used to produce glucose from cellulose or wood.

Abstract: The invention relates to a nucleic acid molecule comprising a section that encodes a signal peptide, a section that comprises a heterologous redox factor-regenerating polypeptide, an optional section that encodes a protease detection site, a section that encodes a transmembrane linker, and a section that encodes a transporter domain of an autotransporter or a variant thereof. The nucleic acid molecule enables the expression of redox factor-regenerating enzymes.

Abstract: The present invention relates to a method for producing a product of a reaction catalysed by a nitrilase, which method comprises the steps (i) providing a microorganism comprising said nitrilase located on its surface, and/or a membrane preparation of said microorganism, and (ii) contacting the microorganism and/or the membrane preparation thereof with one or more nitrilase substrates under conditions compatible with nitrilase activity. The present invention further relates to a method for producing enantiomerically pure (R)-mandelic acid using the nitrilase-displaying whole cell biocatalyst or membrane preparation thereof for the conversion of racemic mandelonitrile.

Abstract: A solar collector is provided having an absorber (100), which has a front side (102) facing toward the solar radiation during use and a back side (103) facing away from the solar radiation during use, a transparent cover (200) arranged essentially plane-parallel opposite the front side (102) of the absorber (100), and a back wall (300) arranged opposite the back side (103) of the absorber (100). The solar collector distinguishes itself in that the back wall (300) is constructed as a transparent pane, in particular a glass pane or plastic pane, and contains, at least in some regions, a medium which reflects infrared radiation and is reflective in the direction of the back side (103) of the absorber (100). Further, a composite pane is provided, in particular a composite glass pane (1), an absorber (100), and a use of such an absorber (100) in solar collectors and composite panes. This absorber can also have a coating for the reduction of heat emission (low-e).

Abstract: A rotary screen printing device includes a printing cylinder rotatably mounted about a printing cylinder axis. A cylinder jacket of the printing cylinder is formed at least in areas by a printing screen. An impression cylinder is rotatably mounted about an impression cylinder axis. A squeegee is movable relative to the cylinder jacket of the printing cylinder. The squeegee is arranged at least partly inside the printing cylinder for pressing printing ink through the printing screen onto a substrate to be printed. At least one adjustment device is provided for adjusting a distance between the printing cylinder axis and the impression cylinder axis or a radius of the printing cylinder or of the impression cylinder.

Abstract: Process for producing a solar absorber coating, which comprises the steps: coating of a substrate with a titanium precursor solution to produce a titanium dioxide layer by the sol-gel technique and heat treatment of the coated substrate to pyrolyse and crystallize the layer, characterized in that silver ions are added to the titanium precursor solution prior to coating in such an amount that the heat-treated layer has a proportion by mass of silver in the range from 10% to 80% and pyrolysis and crystallization of the layer are carried out with illumination of the layer with visible light.

Abstract: A solar collector (1) is provided having a cover (200), a back wall (300), and an absorber (100), the absorber being arranged between the cover (200) and the back wall (300) and defining, with the cover (200) and/or the back wall (300), a front and/or back cavity (14, 15), respectively. At least one spacer element (400) is provided, which extends from a front surface (102) of the absorber (100) to the cover (200) and/or from a back surface (103) of the absorber (100) to the back wall (300) and is connected or connectable directly to the absorber (100) and/or the cover (200). A method for manufacturing such a solar collector (1) is also provided.

Abstract: According to the invention, a tool holder system having a tool holder with an extension and retraction device, in particular a reel, by means of which a cable, to which a tool can be fastened, is extendable and automatically retractive, is characterized by the fact that the tool holder can be detachably fastened by means of an attaching device.

Abstract: The invention relates to a tool bag which can be carried next to the body of a person, the tool bag comprising at least one receiving element for at least one tool. The inventive tool bag respectively comprises a three-dimensional flexible safety chord for each tool associated with a receiving element. The chord can be fixed to the associated tool, and can be fixed to the tool bag in such a way that it can be extracted and automatically retracted by means of an extracting and retracting device.