Fig. 1: Imaging of hydroxyl radical production at the gas–water interface.
From: Probing catalyst-free hydroxyl radical generation at microbubble interfaces
a Schematic diagram of the experimental process of generating microbubbles and in situ imaging the chemiluminescence phenomenon of microbubbles. b Intense chemiluminescence generated at the gas‒liquid interface of the N2 bubble. c Chemiluminescence intensity around nitrogen gas bubbles containing luminol molecules as a function of light intensity. d Statistics of the diameters of N2 bubbles deposited on a glass slide. e Chemiluminescence intensity of N2 bubbles of different sizes and f light intensity statistics per pixel. Error bars for (f) are derived from the range within 1.5IQR calculated over the fluorescence intensity. All figures use the same scale bar: 11 μm. Source data are provided as a Source Data file.
