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  Magnetic spin imaging under ambient conditions with sub-cellular resolution.

Steinert, S., Ziem, F., Hall, L. T., Zappe, A., Schweikert, M., Götz, N., et al. (2013). Magnetic spin imaging under ambient conditions with sub-cellular resolution. Nature Communications, 4(3): 1607. doi:10.1038/ncomms2588.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-B030-5 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0028-3D90-0
Genre: Journal Article

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 Creators:
Steinert, S., Author
Ziem, F., Author
Hall, L. T., Author
Zappe, A., Author
Schweikert, M., Author
Götz, N., Author
Aird, A., Author
Balasubramanian, G.1, Author              
Hollenberg, L., Author
Wrachtrup, J., Author
Affiliations:
1Research Group of Nanoscale Spin Imaging, MPI for biophysical chemistry, Max Planck Society, ou_1113579              

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 Abstract: The detection of small numbers of magnetic spins is a significant challenge in the life, physical and chemical sciences, especially when room temperature operation is required. Here we show that a proximal nitrogen-vacancy spin ensemble serves as a high precision sensing and imaging array. Monitoring its longitudinal relaxation enables sensing of freely diffusing, unperturbed magnetic ions and molecules in a microfluidic device without applying external magnetic fields. Multiplexed charge-coupled device acquisition and an optimized detection scheme permits direct spin noise imaging of magnetically labelled cellular structures under ambient conditions. Within 20 s we achieve spatial resolutions below 500 nm and experimental sensitivities down to 1,000 statistically polarized spins, of which only 32 ions contribute to a net magnetization. The results mark a major step towards versatile subcellular magnetic imaging and real-time spin sensing under physiological conditions providing a minimally invasive tool to monitor ion channels or haemoglobin trafficking inside live cells

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Language(s): eng - English
 Dates: 2013-03-19
 Publication Status: Published online
 Pages: 6
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1038/ncomms2588
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Title: Nature Communications
Source Genre: Journal
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Pages: - Volume / Issue: 4 (3) Sequence Number: 1607 Start / End Page: - Identifier: -