Suspensions of oxygen-filled bubbles are under active investigation as potential means relieving tissue hypoxia. Intravenous administration large quantities is, however, undesirable. Previous work by the authors has demonstrated that tumor oxygen levels can be increased following oral phospholipid stabilized nanobubbles. The aim this study was to determine whether would enhance efficacy sonodyn...

For a droplet or a bubble of dimensions below 100 nm, long-range surface forces such as long-range van der Waals forces can compete with capillarity, which leads to a size dependence of the contact angle. This is discussed in this work, where we also show that the effect cannot simply be described by a normalized line tension. We calculate interfacial profiles for typical values of van der Waal...

Cavitation bubbles occur in fluids subjected to rapid changes in pressure. We use billion-atom reactive molecular dynamics simulations on a 163,840-processor BlueGene/P supercomputer to investigate damage caused by shock-induced collapse of nanobubbles in water near an amorphous silica surface. Collapse of an empty bubble generates a high-speed nanojet, which causes pitting on the silica surfac...

3He nanobubbles created by radioactive decay of tritium in palladium tritide are investigated after several years aging. Scanning Transmission Electron Microscopy Energy-Loss Spectroscopy (STEM-EELS) has been used to measure helium density from the K-edge around 23 eV. Helium densities were found between 20 and 140 (+/-30) He/nm3 corresponding nanobubble pressures range 0.1 3 (+/-0.2) GPa. Meas...