Journal: Nature
Article Title: Adventitious carbon breaks symmetry in oxide contact electrification
doi: 10.1038/s41586-025-10088-w
Figure Lengend Snippet: Here we show five examples of charging polarity reversals as well as those shown in Fig. . This includes three examples in which the reversal was obtained by baking one of the samples at 300 °C: a borosilicate sphere contacted with a zirconia plate, a zirconia sphere contacted with a zirconia plate and a soda–lime sphere contacted with a magnesia plate. We also include two examples in which plasma treatment was used instead: a zirconia sphere contacted with a silica plate and a sapphire sphere contacted with a silica plate.
Article Snippet: Borosilicate glass spheres (Sandoz Fils SA) are composed of 81% SiO 2 , 13% B 2 O 3 , 4% Na 2 O/K 2 O and 2% Al 2 O 3 and have a measured diameter of 498 ± 0.3 μm.
Techniques: Clinical Proteomics