Figure 7
In vivo imaging of galena in a live mouse trachea. The image on the left is the first image captured after imaging began, and shows a large cluster of lead particles, as well as smaller individual particles spread throughout the trachea. The strips on the right (10.5 s apart) show the motion of the lead cluster. The indicator at the top of each strip shows the relative rotation of the cluster. Note that between the first and third strips the cluster movement was briefly retrograde. The majority of the other individual galena particles are located toward the dorsal tracheal wall. Movie S3 in the online supporting information (Galena.avi) contains a time-lapse movie of the in vivo behaviour of galena particles. |