Berlin 2008 – wissenschaftliches Programm

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 9: POSTERS Single Molecules, Biopolymers, Membranes

CPP 9.9: Poster

Montag, 25. Februar 2008, 16:45–19:00, Poster A

N-V center in diamond as spin-selective sensor — •Bernhard Grotz, Gopalakrishnan Balasubramanian, Inam Mirza, Fedor Jelezko, and Jörg Wrachtrup — 3. Physikalisches Institut, Universität Stuttgart, Germany

Due to its biocompatibility and chemical stability, diamond is a promising candidate for biological applications. In particular fluorescent properties of N-V colour centers in diamond have attracted interest because of unlimited photostability [1]. We show the concept and first experiments how such colour centers can be used as a sensor for biomolecules absorbed on diamond surfaces. Since N-V centers are paramagnetic, their fluorescence can be employed as spin-selective sensor.

[1] A. Gruber et al., Science 276, 2012 (1997)