Pellet paint ?

[Nigel Kenward]

Yep,
I understand it's dye-linked glycogen.
Try just glycogen - the pellet is visible !
-- 
            ____     ___
|\   |  |  /    \   /     |         NIGEL KENWARD,
| \  |  | |   ___  |__    |         Dept. Biochemistry,
|  \ |  | |     |  |      |         Nottingham University Medical School.
|   \|  |  \____/   \___  |___      Clifton Boulevard.
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