Prompt
                                        
                                            Create a realistic portrait of Georges Köhler, a middle-aged German immunologist with a gentle expression, wearing a lab coat and standing in front of a laboratory setting, with a subtle background hinting at his connection to the Max Planck Institute for Immunobiology and Epigenetics, in a style that reflects his profession and achievements, specifically highlighting his work on monoclonal antibodies for which he was awarded the Nobel Prize in 1984.