Perfluorodecyl iodide was examined once upon a long time ago as a possible PFC for blood substitutes. There are a couple of tissue blocks which I am re-examining to see whether there is a periodicity to the lysosomes that are included in these amazing phago-lysosomal structures, left over footprints as it were, to the presence of IPFD in macrophages (Kupffer cells, fat storing cells?, circulating macrophages, in the liver).
This lower micrograph has very definite structure at the ends (one top one bottom) of the crystals. It is a little unfortunate that at the time i printed these negatives (back in the ‘wet darkroom days’ that I didnt use a finer grade paper and developer. Too much grain, but the little indents and rounded areas with a punctate density are going to be relly interesting. I think the lucent areas beside each will measure out the same as some fine lines that I see at the ends of other crystals.
