New World Transparent Specimens by Lori Tomita
Tomita first removes the scales and skin of fish that have been
preserved in formaldehyde. Next he soaks the creatures in a stain that
dyes the cartilage blue. Tomita uses a digestive enzyme called trypsin,
along with a host of other chemicals, to break down the proteins and
muscles, halting the process just at the moment they become transparent
but before they lose their form. The bones are then stained with red
dye, and the brilliant beast is preserved in a jar of glycerin.
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