Molecular sensing with single NV centers in diamond
ORAL
Abstract
The field of nano-NMR aims to elucidate the composition and structure of matter using drastically reduced sensing volumes, ideally reaching the single- to few-molecule regime. One modality leverages the long-lived electronic spin of the nitrogen-vacancy (NV) center in diamond to detect the minute dipolar fields generated by nuclear spins in external molecules. In this talk, I will discuss diamond fabrication and surface treatments developed in our group to improve detection sensitivity while enabling highly generalizable molecular surface functionalization. Finally, I will discuss progress in using our NV-NMR platform to detect conformational changes in DNA molecules attached to the diamond interface.
*This work has been supported by Swiss National Science Foundation (SNSF) Project Grant No. 200020 175600, the National Center of Competence in Research in Quantum Science and Technology (NCCR QSIT), and the Advancing Science and TEchnology thRough dIamond Quantum Sensing (ASTERIQS) program, Grant No. 820394, of the European Commission. E. Janitz acknowledges support from a NSERC postdoctoral fellowship.
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Publication: Abendroth et al., Single Nitrogen-Vacancy-NMR of Amine-Functionalized Diamond Surfaces. arXiv:2202.03969 [quant-ph], 2021.
Presenters
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Erika W Janitz
- ETH Zurich