Mimicking exposures to acute and lifetime concentrations of inhaled silver nanoparticles by two different in vitro approaches

• Fabian Herzog,
• Kateryna Loza,
• Sandor Balog,
• Martin J. D. Clift,
• Matthias Epple,
• Peter Gehr,
• Alke Petri-Fink and
• Barbara Rothen-Rutishauser

Beilstein J. Nanotechnol. 2014, 5, 1357–1370, doi:10.3762/bjnano.5.149

• , increased levels of oxidative stress and reactive oxygen species (ROS) were detected over a time period of 48 h [22][25][26]. Environmental stressors trigger the production of intracellular ROS, which can overwhelm the cellular antioxidant defence system. ROS can cause DNA damage, which results in the

Glassy carbon electrodes modified with multiwalled carbon nanotubes for the determination of ascorbic acid by square-wave voltammetry

• Sushil Kumar and
• Victoria Vicente-Beckett

Beilstein J. Nanotechnol. 2012, 3, 388–396, doi:10.3762/bjnano.3.45

• no significant difference (P = 0.05). Keywords: ascorbic acid; carbon nanotubes; glassy carbon electrode; square-wave voltammetry; Introduction L-ascorbic acid (AA), also known as vitamin C, is a well-known antioxidant, which helps the human body to reduce oxidative damage and protects food quality

• -wave voltammetry (SWV), have been employed as alternative tools for the evaluation of antioxidant activity [8]. These methods are attractive because of the speed of analysis, simplicity and low cost of the instrumental requirements. Ascorbic acid oxidation at a bare glassy carbon electrode (GCE