METHOD FOR PRODUCING LIGANDS, LIGANDS AND TEST KIT

• Main Authors: OBERSTRASS JURGEN, ZWINGMANN DETLEV, MEISEGEIER BERNHARD
• Format: Patent
• Language: English
• Published: 25.09.2008
• Subjects: BEER; BIOCHEMISTRY; CHEMISTRY; COMPOSITIONS OR TEST PAPERS THEREFOR; CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL ORENZYMOLOGICAL PROCESSES; ENZYMOLOGY; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; MEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEICACIDS OR MICROORGANISMS; METALLURGY; MICROBIOLOGY; MUTATION OR GENETIC ENGINEERING; PHYSICS; PROCESSES OF PREPARING SUCH COMPOSITIONS; SPIRITS; TESTING; VINEGAR; WINE

The invention relates to a method for producing ligands, in particular aptamers. With this method, a target substance is offered to a set of candidate ligands, and the unbonded ligands are separated out by a cross-flow filtration process. The retentate, which contains ligand-target substance complexes, then undergoes further continuous cross-flow filtration while chemical and/or physical parameters are being varied. After each variation of a parameter, those candidate ligands whose bond with the target substance was dissolved by the parameter variation are collected in separate fractions and separately multiplied.