Overview News on Innovation Better Harvests and Healthy Families Leaps by Bayer Research and Development At a Glance Health Care Nutrition Our Scientists Open Innovation Social Innovation Employee Innovation Research & Innovation A Selection of our Scientists Get to know our team: Portrait Lars Baerfacker Medicinal Chemist Portrait Michael Edmund Beck Principal Scientist and Head of Computational Life Science Portrait Martyn Griffiths Senior Regulatory Policy Manager Portrait Bernard Haendler Principal Scientist in TRG Oncology Portrait Michael Haerter Principal Scientist in Drug Discovery Laboratory head in medicinal chemistry / project leader of late-stage pharmaceutical research projects Portrait Tilghman Hall Director of Environmental Toxicology and Risk Assessment Team Portrait Peter Jeschke Pest Control Chemistry, Principal Scientist Portrait Peter Kolkhof Principal Scientist Cardiovascular Research Portrait Frank Laporte Dietary Safety Expert/Human Safety Manager Portrait Hans-Georg Lerchen Principal Scientist (Medicinal Chemistry) Current Research Focus: Drug Delivery Systems and Prodrugs; Antibody-Drug Conjugates Portrait Christian Maus Global Lead Scientist Bee Care and Pollinator Safety Manager Portait Ralf Nauen Principal Scientist, Research & Development, Crop Science Division Portrtait Sergii Pazenok Chief Scientist Portrait Oliver Politz Principal Scientist in Oncology Research at Bayer AG Portrait Peter Sandner Chief Scientist sGC Pharmacology in Cardiovascular Research Portrait Guido Schmitz Head of Packaging Design and Technology Innovation, Global Marketing Portrait Michael Schwarz Research and Development Fellow, Crop Development Manager Portrait Larry Sheets Research Fellow, Regulatory Toxicology/Human Safety Portrtait Andrea Wagenfeld Director Biomarker Strategy, Clinical Sciences Portrait Christian Zurth Principal Scientist, Senior Pharmacokinetics Expert Links The Grohe method and quinolone antibiotics (PDF, 1.18 MB)