2016
The viability of ovarian carcinoma cells A2780 affected by titanium dioxide nanoparticles and low ultrasound intensity
BERNARD, Vladan a Vojtěch MORNSTEINZákladní údaje
Originální název
The viability of ovarian carcinoma cells A2780 affected by titanium dioxide nanoparticles and low ultrasound intensity
Autoři
BERNARD, Vladan (203 Česká republika, garant, domácí) a Vojtěch MORNSTEIN (203 Česká republika, domácí)
Vydání
Lékař a technika, Praha, Fakulta biomedicínského inženýrství ČVUT, 2016, 0301-5491
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10610 Biophysics
Stát vydavatele
Česká republika
Utajení
není předmětem státního či obchodního tajemství
Kód RIV
RIV/00216224:14110/16:00088253
Organizační jednotka
Lékařská fakulta
Klíčová slova anglicky
nanomaterials; titanium dioxide; ultrasound; viability
Štítky
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 6. 12. 2016 10:30, Ing. Mgr. Věra Pospíšilíková
Anotace
V originále
The effect of titanium dioxide nanoparticles and ultrasound was studied on human ovarian carcinoma cells A2780 in vitro. The viability of cells has been studied by a standard 3-(4,5-dimethythiazol-2-yl)-2,5-diphenyltetrazolium bromide viability assay in different modes of treatment: application of nanoparticles alone, exposure to ultrasound field alone, application of nanoparticles followed by an exposure to ultrasound, and an exposure to ultrasound followed by addition of nanoparticles. The viability was measured 48 and 72 hours after the exposure. The titanium dioxide nanoparticles used were smaller than 100 nm in diameter, ultrasound was applied at a therapeutical intensity of 1 Wcm-2 and frequency of 1 MHz; the cells were treated in a 37 °C thermostated water bath in a configuration with far field ultrasound exposure. The final concentration of titanium dioxide nanoparticles was 50 microg/mL. The results showed that a combined effect of titanium dioxide nanoparticles and ultrasound influenced the viability of human carcinoma cells more than the application of titanium dioxide nanoparticles or ultrasound alone. The outcomes showed a significant difference between experimental groups with different sequences of application or exposure of nanoparticles or ultrasound. Maximal decrease of viability was achieved by application of experimental protocol with exposure to ultrasound first, followed by application of nanoparticles. It seems to indicate the possibility to intensify the effect of nanoparticles on cell viability by previous ultrasound exposure.
Návaznosti
GP13-04408P, projekt VaV |
|