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Enrichment of ODMR-active nitrogen-vacancy centres in five-nanometre-sized detonation-synthesized nanodiamonds: Nanoprobes for temperature, angle and position
- Source :
- Scientific Reports, 8 (1), Scientific Reports, Vol 8, Iss 1, Pp 1-8 (2018), Scientific Reports
- Publication Year :
- 2018
- Publisher :
- Nature, 2018.
-
Abstract
- The development of sensors to estimate physical properties, and their temporal and spatial variation, has been a central driving force in scientific breakthroughs. In recent years, nanosensors based on quantum measurements, such as nitrogen-vacancy centres (NVCs) in nanodiamonds, have been attracting much attention as ultrastable, sensitive, accurate and versatile physical sensors for quantitative cellular measurements. However, the nanodiamonds currently available for use as sensors have diameters of several tens of nanometres, much larger than the usual size of a protein. Therefore, their actual applications remain limited. Here we show that NVCs in an aggregation of 5-nm-sized detonation-synthesized nanodiamond treated by Krüger’s surface reduction (termed DND-OH) retains the same characteristics as observed in larger diamonds. We show that the negative charge at the NVC are stabilized, have a relatively long T2 spin relaxation time of up to 4 μs, and are applicable to thermosensing, one-degree orientation determination and nanometric super-resolution imaging. Our results clearly demonstrate the significant potential of DND-OH as a physical sensor. Thus, DND-OH will raise new possibilities for spatiotemporal monitoring of live cells and dynamic biomolecules in individual cells at single-molecule resolution.<br />Scientific Reports, 8 (1)<br />ISSN:2045-2322
- Subjects :
- 0301 basic medicine
Materials science
Detonation
Nanoparticle
lcsh:Medicine
Nanotechnology
02 engineering and technology
Physical Chemistry
Article
03 medical and health sciences
Nanosensor
Vacancy defect
Nanodiamond
lcsh:Science
Quantum
chemistry.chemical_classification
Multidisciplinary
Biomolecule
Nanoparticles
Nanosensors
lcsh:R
021001 nanoscience & nanotechnology
030104 developmental biology
chemistry
Nanometre
lcsh:Q
0210 nano-technology
Subjects
Details
- Language :
- English
- ISSN :
- 20452322
- Database :
- OpenAIRE
- Journal :
- Scientific Reports, 8 (1), Scientific Reports, Vol 8, Iss 1, Pp 1-8 (2018), Scientific Reports
- Accession number :
- edsair.doi.dedup.....540de0e8a37d4a7285d53613dd75f296