Publication

Improving surface and defect center chemistry of fluorescent nanodiamonds for imaging purposes-a review

Nagl, A., Hemelaar, S. R. & Schirhagl, R., Oct-2015, In : Analytical and Bioanalytical Chemistry. 407, 25, p. 7521-7536 16 p.

Research output: Contribution to journalReview articleAcademicpeer-review

Diamonds are widely used for jewelry owing to their superior optical properties accounting for their fascinating beauty. Beyond the sparkle, diamond is highly investigated in materials science for its remarkable properties. Recently, fluorescent defects in diamond, particularly the negatively charged nitrogen-vacancy (NV-) center, have gained much attention: The NV- center emits stable, nonbleaching fluorescence, and thus could be utilized in biolabeling, as a light source, or as a Forster resonance energy transfer donor. Even more remarkable are its spin properties: with the fluorescence intensity of the NV- center reacting to the presence of small magnetic fields, it can be utilized as a sensor for magnetic fields as small as the field of a single electron spin. However, a reproducible defect and surface and defect chemistry are crucial to all applications. In this article we review methods for using nanodiamonds for different imaging purposes. The article covers (1) dispersion of particles, (2) surface cleaning, (3) particle size selection and reduction, (4) defect properties, and (5) functionalization and attachment to nanostructures, e.g., scanning probe microscopy tips.

Original languageEnglish
Pages (from-to)7521-7536
Number of pages16
JournalAnalytical and Bioanalytical Chemistry
Volume407
Issue number25
Publication statusPublished - Oct-2015

    Keywords

  • Diamonds, Surface chemistry, Sensors, Magnetometry, Biolabels, NITROGEN-VACANCY CENTERS, BORON-DOPED DIAMOND, NUCLEAR-MAGNETIC-RESONANCE, CDTE QUANTUM DOTS, ULTRANANOCRYSTALLINE DIAMOND, IN-VIVO, SINGLE SPINS, FLUORINATED NANODIAMOND, BIOMEDICAL APPLICATIONS, CELLULAR BIOMARKERS

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