2024
Verifying the cytotoxicity of a biodegradable zinc alloy with nanodiamond sensors
WOJTAS, Daniel, Aldona MZYK, Runrun LI, Michael ZEHETBAUER, Erhard SCHAFLER et. al.Základní údaje
Originální název
Verifying the cytotoxicity of a biodegradable zinc alloy with nanodiamond sensors
Autoři
WOJTAS, Daniel (616 Polsko, domácí), Aldona MZYK, Runrun LI, Michael ZEHETBAUER, Erhard SCHAFLER, Anna JARZEBSKA, Bartosz SULKOWSKI a Romana SCHIRHAGL
Vydání
Biomaterials Advances, AMSTERDAM, Elsevier B.V. 2024, 2772-9508
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
21001 Nano-materials
Stát vydavatele
Nizozemské království
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Organizační jednotka
Lékařská fakulta
UT WoS
001260769500001
Klíčová slova anglicky
Biodegradable zinc; Cytotoxicity; Free radical; Relaxometry; NV center; Nanodiamond
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 12. 7. 2024 08:30, Mgr. Tereza Miškechová
Anotace
V originále
Metals are widely utilized as implant materials for bone fixtures as well as stents. Biodegradable versions of these implants are highly desirable since patients do not have to undergo a second surgery for the materials to be removed. Attractive options for such materials are zinc silver alloys since they also offer the benefit of being antibacterial. However, it is important to investigate the effect of the degradation products of such alloys on the surrounding cells, taking into account silver cytotoxicity. Here we investigated zinc alloyed with 1 % of silver (Zn-1Ag) and how differently concentrated extracts (1 %-100 %) of this material impact human umbilical vein endothelial cells (HUVECs). More specifically, we focused on free radical generation and oxidative stress as well as the impact on cell viability. To determine free radical production we used diamond-based quantum sensing as well as conventional fluorescent assays. The viability was assessed by observing cell morphology and the metabolic activity via the MTT assay. We found that 1 % and 10 % extracts are well tolerated by the cells. However, at higher extract concentrations we observed severe impact on cell viability and oxidative stress. We were also able to show that quantum sensing was able to detect significant free radical generation even at the lowest tested concentrations.