Abstract: This application claims a method for detecting biologically active substances, comprising the following steps a) providing a support carrying substances to be tested b) providing a suspension containing luminescent microorganisms, c) coating the support with the suspension of microorganisms, d) detecting the biologically active substances on the support by detecting the change in luminescence of the suspension of microorganisms, and e) stimulating the luminescence of the microorganisms before or during detection, and/or f) extending the period of luminescence of the microorganisms by employing substances for regulating and extending the period of luminescence of the microorganisms.

Abstract: This application claims a method for detecting biologically active substances, comprising the following steps a) providing a support carrying substances to be tested b) providing a suspension containing luminescent microorganisms, c) coating the support with the suspension of microorganisms, d) detecting the biologically active substances on the support by detecting the change in luminescence of the suspension of microorganisms, and e) stimulating the luminescence of the microorganisms before or during detection, and/or f) extending the period of luminescence of the microorganisms by employing substances for regulating and extending the period of luminescence of the microorganisms.

Abstract: The invention claimed herein is a kit for detecting biologically active substances on a support, comprising the luminescent marine bacteria Vibria Fischeri in a form stabilized for transport and storage, one or more cultivation media or the individual components of cultivation media for the microorganism wherein the cultivation media contains 100 mg/l to 500 mg/l of aspartic acid, and optionally additives for extending the period of luminescence selected from N-acylhomoserine lactones, dipeptides, oligopeptides, or their biochemical precursors, and boron compounds.

Abstract: The invention relates to a method for detecting biologically active substances, comprising the steps

Abstract: The present invention relates to novel optionally substituted 8-cyano-1-cyclo-propyl-7-(2,8-diazabicyclo[4.3.

Abstract: Intermediates useful in the preparation of 8-cyano-1-cyclopropyl-7-(2,8-diazabicyclo[4.3.0]nonan-8-yl-6-fluorol,4-dihydro-4-oxo-3-quinolinecarboxylic acids of the following structures are claimed.

Abstract: The mixture to be tested for toxic components is first separated into fractions by chromatography. The separated fractions are then contacted with luminescent microorganisms in the chromatographic system itself and the toxicity of the fractions is determined by measurement of the bioluminescence. The chromatographic separation may be carried out either by thin layer chromatography or by column liquid chromatography.

Abstract: The invention concerns novel plant-treatment agents comprising: at least one thermoplastically processable biodegradable polyester amide, optionally in a mixture with one or a plurality of further thermoplastically processable, biodegradable polymer components; at least one agrochemical substance; and optionally additives. The invention further concerns a process for preparing these agents, and their use in the application of agrochemical substances.

Abstract: Samples of commercial cellulose having high crystallinity (>80%) and a degree of polymerization of approximately 1500 were pretreated enzymatically under various conditions with commercial endoglucanases, before the chemical conversion to substituted cellulose derivatives was carried out. The enzymatically pretreated cellulose samples exhibited a significantly higher substitution, up to 222% higher, in comparison with control samples which had been treated with buffer without enzyme. The increase in substitution during the chemical reaction could be observed in the presence of various amounts of alkali, but fell as the amounts of alkali decreased. At the same degree of substitution of the cellulose derivative, the use of cellulose pretreated with endoglucanase significantly reduced the amount of alkali required by 60%, as compared with the use of cellulose pretreated only with buffer.

Abstract: The present invention relates to two processes for the treatment of antimicrobially, in particular antibacterially, acting quinolone- and naphthyridonecarboxylic acids and derivatives thereof with wood rot fungi, if appropriate in the presence of water and/or inert solid or liquid substrates and further auxiliaries.

Abstract: The method of producing luminescent bacteria is based on the transfer of genetic information for biological luminescence to obligate chemolithoautotrophic nitrifying microorganisms. In particular, luciferase DNA or a luciferase-beta-galactosidase transcription fusion is transferred into ammonia-oxidizing bacteria with the aid of plasmid- or transposon vector systems. The bioluminescent nitrification microorganisms, particularly Nitrosomonas strains modified by genetic engineering, are used in order to identify specific inhibitors during nitrification processes, the viability of these microorganisms being determined by measuring the decrease in luminescence. A particularly important application is that inhibitors in a nitrifying biological sewage treatment plant can be detected in this manner.

Abstract: The object of the present invention is the production of thermoplastically workable copolymers capable of being composted, characterized in that they consist of partially crystalline soft segments formed from aliphatic esters and also of amorphous hard segments and that the proportion of soft segments amounts to 70% to 95% by weight.

Abstract: Waste water and/or outgoing air are purified by contact with a polyurethane hydrogel containing surface active coal, a polymer having cationic groups and cells having enzymatic activity and being capable of growth.

Abstract: A biologically active composition is prepared comprising a polyurethane hydrogel containing surface active coal, a polymer having cationic groups and cells having enzymatic activity and being capable of growth. The composition is used for purifying waste water and outgoing air.