Cnidarians' problem (their cnidocytes' posion)?

Question

Cnidarians have cnidocytes, which are specialized cells that carry stinging organelles called cnidocysts. They are poisonous, I wonder, how can I extract the poison? Also, what are the chemical formulas of these poson?

Answer 1

They have predominantly neurotoxins. These PDFs would give you good information: http://www.scielo.br/pdf/rimtsp/v48n5/a13v48n5.pdf
http://www.springerlink.com/index/Q63538R38U782415.pdf
Be very careful, as you are putting your life at stake. All the best mate!

Answer 2

Ahhhh! I know about it partially.....

Unlike bryozoans, in the Cnidarian phylum (including jellyfishes), the tentacles are often more numerous but NOT ciliated. They have defensive structures called cnidocysts, (or nematocysts; the first name is derived from Greek, meaning 'nettle'), which are used to catch prey by injection of paralysing venom. Cnidocysts are cells containing filaments which are suddenly ejected when a prey touches a trigger hair.

The tentacles of the jellyfish is covered with cnidocysts which produce nematocysts. A nematocyst is a sort of chitinous capsule containing a coiled thread. Cnidocysts often feature a hair (cnidocil) which act as a trigger when prey touch it. At this time a nematocyst projects a sort of little harpoon which pierces the skin or exoskeleton of the prey and injects venom. It's difficult to see the detail of a nematocyst (except with an electron microscope) but easy to make them discharge by adding a little vinegar to the slide.