1 Stock number stamps contain movable bands with the numbers 0 - 9. 2  Choose between a sturdy metal core frame or sleek, economical plastic frame number stamp.
The channel has a large diameter of 0.8x1.1nm, and is non-selective for small ions. However, it has an upper exclusion size limit corresponding to molecular weights of about 600 Dalton of permeants. Because most metabolites have molecular weights lower than 600 Da and have been shown to pass through porin channels, porins are called general diffusion pores.
Scattered along the western coastline of Central Greece, the Ionian Islands as they are known, are an island cluster comprising twelve small and large islands whose total surface area comes to 2,200 square kilometers. Zakynthos, Ithaca, Corfu (Kerkyra), Kefalonia, Lefkada, and Paxi are the six, large Ionian Islands. Antipaxi, Erikousa, Mathraki, Othoni, Meganisi and the deserted islets of Strofades south of Zakynthos are the smaller Ionian Islands.