Figure 6 : SEM at 300X (a) and 2200X (b) of a naïve membrane prior to contrast exposure,
demonstrating the silicon framework harboring numerous slit-like windows (asterisk), each
of which contains a fine network of pores (bracketed by arrows). In distinction, a
contrast-exposed membrane at 500X (c) and 10000X (d) demonstrates patchy areas of
amorphous semi-translucent material thickly coating the silicon framework (arrowhead)
and completely sealing and obstructing the pores (bracketed by arrows) in many areas.

Olorunsola et al.Medical Instrumentation  2014 2:2DOI : 10.7243/2052-6962-2-2