view article
Figure 1
(a) Image of the central section through a frog eye obtained by phase-contrast X-ray tomography using a Talbot grating interferometer (Hoshino et al., 2011BB11). The rod is located at the outer rim of the retina and the outer segment is pointing away from the light. (b) Schematic drawing of the arrangement of the disk membranes in a rod outer segment. Each disk membrane comprises of a pair of bilayers. d is the inter-disk spacing, while a is the intra-disk distance, i.e. the distance between two bilayers in one disk. Since d is about 30 nm and the length of the rod outer segment is about 50 µm, the number of disk membranes is about 1500. The electron density profile across two disk membranes is represented schematically.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 19| Part 4| May 2012| Pages 574-578
doi:10.1107/S0909049512018535
Follow J. Synchrotron Rad.
Sign up for e-alerts
E-alerts
Follow J. Synchrotron Rad. on Twitter
Twitter
Follow us on facebook
Facebook
Sign up for RSS feeds
RSS