Academic Journal
High-throughput nitrogen-vacancy center imaging for nanodiamond photophysical characterization and pH nanosensing
| العنوان: | High-throughput nitrogen-vacancy center imaging for nanodiamond photophysical characterization and pH nanosensing |
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| المؤلفون: | Sow, Maabur, Steuer, Horst, Adekanye, Sanmi, Gines, Laia, Mandal, Soumen, Gilboa, Barak, Williams, Oliver A., Smith, Jason M., Kapanidis, Achillefs N. |
| بيانات النشر: | Royal Society of Chemistry |
| سنة النشر: | 2020 |
| المجموعة: | Cardiff University: ORCA (Online Research @ Cardiff) |
| الوصف: | The fluorescent nitrogen-vacancy (NV) defect in diamond has remarkable photophysical properties, including high photostability which allows stable fluorescence emission for hours; as a result, there has been much interest in using nanodiamonds (NDs) for applications in quantum optics and biological imaging. Such applications have been limited by the heterogeneity of NDs and our limited understanding of NV photophysics in NDs, which is partially due to the lack of sensitive and high-throughput methods for photophysical analysis of NDs. Here, we report a systematic analysis of NDs using two-color wide-field epifluorescence imaging coupled to high-throughput single-particle detection of single NVs in NDs with sizes down to 5–10 nm. By using fluorescence intensity ratios, we observe directly the charge conversion of single NV center (NV− or NV0) and measure the lifetimes of different NV charge states in NDs. We also show that we can use changes in pH to control the main NV charge states in a direct and reversible fashion, a discovery that paves the way for performing pH nanosensing with a non-photobleachable probe. |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | application/pdf |
| اللغة: | English |
| Relation: | https://orca.cardiff.ac.uk/id/eprint/136178/1/d0nr05931e.pdf; Sow, Maabur, Steuer, Horst, Adekanye, Sanmi, Gines, Laia https://orca.cardiff.ac.uk/view/cardiffauthors/A1796680I.html orcid:0000-0001-9980-054X orcid:0000-0001-9980-054X, Mandal, Soumen https://orca.cardiff.ac.uk/view/cardiffauthors/A1143884T.html orcid:0000-0001-8912-1439 orcid:0000-0001-8912-1439, Gilboa, Barak, Williams, Oliver A. https://orca.cardiff.ac.uk/view/cardiffauthors/A269574M.html orcid:0000-0002-7210-3004 orcid:0000-0002-7210-3004, Smith, Jason M. and Kapanidis, Achillefs N. 2020. High-throughput nitrogen-vacancy center imaging for nanodiamond photophysical characterization and pH nanosensing. Nanoscale 12 (42) , p. 21821. 10.1039/D0NR05931E https://doi.org/10.1039/D0NR05931E file https://orca.cardiff.ac.uk/id/eprint/136178/1/d0nr05931e.pdf |
| DOI: | 10.1039/D0NR05931E |
| الاتاحة: | https://orca.cardiff.ac.uk/id/eprint/136178/ https://doi.org/10.1039/D0NR05931E https://orca.cardiff.ac.uk/id/eprint/136178/1/d0nr05931e.pdf |
| Rights: | cc_by |
| رقم الانضمام: | edsbas.96FF9FE4 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1039/D0NR05931E |
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