The microparticles are tiny capsules (2-4 micrometers) made of a single layer of lipids surrounding a small bubble of oxygen gas.
Upon injecting a capsule-filled liquid into the bloodstream, the capsules bump into red blood cells, transferring the oxygen to the cell in the process. About 70% of the oxygen injected successfully makes its way into the blood stream this way.
While the technique is primarily being developed for short-term resuscitation by boosting oxygenation during acute respiratory failure, it does give raise to some mind-boggling perspectives;
Not only could this exciting new technique provide first responders attending dive accidents with better tools but it is also a glimse into the future were divers could have gases provided via particles in the bloodsteam?
Food for thought!