Details

Autor(en) / Beteiligte

• Dreszer, Dominik
• Szewczyk, Grzegorz
• Szubka, Magdalena
• Maroń, Anna M.
• Urbisz, Anna Z.
• Małota, Karol
• Sznajder, Justyna
• Rost-Roszkowska, Magdalena
• Musioł, Robert
• Serda, Maciej

Titel

Uncovering nanotoxicity of a water-soluble and red-fluorescent [70]fullerene nanomaterial

Ist Teil von

• The Science of the total environment, 2023-06, Vol.879, p.163052-163052, Article 163052

Ort / Verlag

Netherlands: Elsevier B.V

Erscheinungsjahr

2023

Quelle

MEDLINE

Beschreibungen/Notizen

• Engineered fullerene materials have attracted the attention of researchers in the biomedical sciences, especially when their synthetic methodology is developed to endow them with significant levels of water-solubility and bioavailability. In this study, we synthesized and characterized a water-soluble and red-fluorescent [70]fullerene nanomaterial, which fluoresced at 693 nm with a quantum yield of 0.065 and a large Stokes shift (around 300 nm). The fullerene nanomaterial generated mainly singlet oxygen after illumination with blue LED light, while superoxide anion radical production was minimal. The transmission electron microscopy as well as fluorescent studies of Drosophila melanogaster revealed that prepared [70]fullerene nanoparticles had better bioavailability than pristine [70]fullerene nanoparticles. The designed nanomaterials were observed in the apical, perinuclear, and basal regions of digestive cells, as well as the basal lamina of the digestive system's epithelium, with no damage to cell organelles and no activation of degenerative processes and cell death. Our findings provide a new perspective for understanding the in vivo behavior of fullerene nanomaterials and their future application in bioimaging and light-activated nanotherapeutics. [Display omitted] •WATER-SOLUBLE AND RED FLUORESCENT C70-OMe-ser WAS CREATED•LARGE STOKES SHIFT- 300 nm (QUANTUM YIELD OF FLUORESCENCE 0.065)•IT PASSED INTO THE CYTOPLASM OF THE MIDDLE INTESTINE CELLS AND CELL ORGANELLS OF D. MELANOGASTER BY ENDOCYTOSIS•TEM BIODISTRIBUTION STUDIES CONFIRMED THE PRECENCE OF FULLERENE NANOMATERIAL IN THE APICAL, PERINUCLEAR, AND BASAL REGIONS OF THE DIGESTIVE CELLS AND IN THE BASAL LAMINA OF THE DIGESTIVE SYSTEM EPITHELIUM•THERE WAS NO DAMAGE TO CELL ORGANELLES AND NO ACTIVATION OF DEGENERATIVE PROCESSESS AND CELL DEATH