Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe

BP: Fachverband Biologische Physik

BP 15: Postersession III

BP 15.24: Poster

Dienstag, 13. März 2018, 14:00–16:00, Poster B

Functionalizing AFM probes with fluorescent nanodiamonds for multimodal spectroscopy approaches — •Frederike Erb¹, Thomas Reisser¹, Fedor Jelezko², and Kay-E. Gottschalk¹ — ¹Institute of Experimental Physics, Ulm University, Germany — ²Intstiute of Quantum Optics, Ulm University, Germany

Fluorescent nanodiamonds (FNDs) offer various new imaging and metrology approaches, especially in the life sciences. Nanodiamonds containing nitrogen-vacancy centers (NV-centers) as fluorophores emit light in the near-infrared window of bioimaging. Their luminescence properties depend on the environment and thus FNDs can not only be used for bioimaging but also find an application as part of various biosensors. As they are biocompatible and non cytotoxic, they can be used for many experiments in vivo.

To offer an easy experimental procedure, it is considered practical to have an NV-center at the very tip of an AFM cantilever. [1,2] To build such a sensor, we want to attach an FND firmly to the cantilever. We present accomplishments and techniques on this task.

References:

[1] Hall, L. T. et al. (2010): Monitoring ion-channel function in real time through quantum decoherence. In: Proceedings of the National Academy of Sciences 107 (44), S. 18777-18782. DOI: 10.1073/pnas.1002562107.

[2] Zhou, Tony X. et al. (2017): Scanning diamond NV center probes compatible with conventional AFM technology. In: Appl. Phys. Lett. 111 (16), S. 163106. DOI: 10.1063/1.4995813.