Philipp Lachenmann: DELPHI Rationale

 

Schering Preis 1999

Dr. Stephan G. Zech

Max-Volmer-Institut für Biophysikalische Chemie und Biochemie, Technische Universität Berlin

Pulsed and transient electron paramagnetic resonance spectroscopy on light induced radical pairs in photosynthetic reaction centers

Through the process of photosynthesis, plants convert the energy of sunlight into chemically usable forms. Thereby, carbohydrates are produced as source for food of all higher organisms and oxygen is released into the atmosphere. Furthermore, the biomass produced by photosynthesis forms the basis for fossil fuels like coal, mineral oil and natural gas.

For the primary processes of photosynthesis nature uses large proteins embedded into a cell membrane. The structure of these proteins is not known yet in detail. Through the energy of sunlight, a so-called electron transfer occurs within these proteins. That means, an electron is advanced over different molecules from one side of the photosynthetic membrane to the other, forming a electric potential across the membrane.

The goal of my work was it to determine the distance between some of the molecules involved. With the aid of a new technique based on pulsed Electron Spin Resonance, these distances could be measured very precisely. The results were important for a better understanding of the structure and function of these membrane proteins.

1999_Zech_grau

Aktuelles

Verschwindende Vermächtnisse: Die Welt als Wald

18.04.2018, Berlin | Mit Verschwindende Vermächtnisse: Die Welt als Wald verwandelt sich das Tieranatomische Theater in...
mehr

Hybrid Encounters. Tomás Saraceno und Gäste

18.04.2018, Berlin | Die Hybrid Plattform und die Schering Stiftung haben mit den »Hybrid Encounters« eine...
mehr

Mikro, Makro, Markt?

23.03.2018, Berlin | „It’s the economy, stupid!“ war der Slogan des US-Präsidentschaftskandidaten Bill Clinton im Jahr...
mehr