Berlin 2008 – wissenschaftliches Programm
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TT: Fachverband Tiefe Temperaturen
TT 22: Transport: Poster Session
TT 22.37: Poster
Mittwoch, 27. Februar 2008, 14:00–18:00, Poster B
Synthesis of Opto-Electronic Compounds from Carbon Nanotubes and Photosystem I — •Markus Mangold1, Simone Lingitz1, Itai Carmeli2, Ludmila Frolov2, Chanoch Carmeli2, Shachar Richter2, and Alex Holleitner1 — 1Walter Schottky Institut, TU München, Deutschland — 2Center for Nanoscience, Tel Aviv University, Israel
The photosystem I (PS I) reaction center is a chlorophyll protein complex located in the thylakoid membranes of chloroplasts and cyanobacteria. PS I mediates a light induced electron transfer through a serial of redox reactions and is central for the photosynthesis in plants and bacteria. Utilizing a unique cysteine (Cys) mutation at the end of PS I, we demonstrate a four-step chemical procedure based on carbodiimide chemistry for covalent binding of PS I proteins to carbon nanotubes (CNTs) [1]. This procedure resulted in linear, circular, and T- shaped CNT-PS I hybrids, which are ideally suited for the integration of the PS I into optoelectronic circuits. We present first measurements of an opto-current generated in the hybrid structures upon illumination with visible light.
We gratefully acknowledge financial support by CeNS and the Nanosystems Initiative Munich, the DFG grant HO-3324/1, and the DFG SFB 486 TP A1.
[1] I. Carmeli, M. Mangold, et al. Advanced Materials, in press (2007).