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J AOAC Int. 2018 Sep 1;101(5):1297-1307. doi: 10.5740/jaoacint.18-0044. Epub 2018 Apr 18.

Fluorescent Nanodiamonds in Biomedical Applications.

Author information

1
Koszalin University of Technology, Faculty of Technology and Education, Department of Biomedical Engineering Division, Śniadeckich 2, Koszalin, Poland 75-453.
2
Koszalin University of Technology, Faculty of Civil Engineering, Environmental and Geodetic Sciences, Department of Environmental Technologies and Bioanalytics, Śniadeckich 2, Koszalin, Poland 75-453.

Abstract

Nanoparticles have an extended surface and a large surface area, which is the ratio of the size of the surface area to the volume. A functionalized surface can give rise to more modifications and therefore allows this nanomaterial to have new properties. Fluorescent molecules contain fluorophore, which is capable of being excited via the absorption of light energy at a specific wavelength and subsequently emitting radiation energy of a longer wavelength. A chemically modified surface of nanodiamond (ND; by carboxylation) demonstrated biocompatibility with DNA, cytochrome C, and antigens. In turn, fluorescent nanodiamonds (FNDs) belong to a group of new nanomaterials. Their surface can be modified by joining functional groups such as carboxyl, hydroxyl, or amino, after which they can be employed as a fluorescence agent. Their fluorescent properties result from defects in the crystal lattice. FNDs reach dimensions of 4-100 nm, have attributes such as photostability, long fluorescence lifetimes (10 ns), and fluorescence emission between 600 and 700 nm. They are also nontoxic, chemically inert, biocompatible, and environmentally harmless. The main purpose of this article was to present the medical applications of various types of modified NDs.

PMID:
29669620
DOI:
10.5740/jaoacint.18-0044
[Indexed for MEDLINE]

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