Many want to restrict selections to venoms that are more economical to work with. These tend to be interesting and challenging for us, since they frequently give us an excuse to collect and work with new species as well as to work more closely with the clients. Back to Contents Current Species List Price List Technical Notes Assay Concentration Since spider venoms may contain dozens or even hundreds of different toxins, the toxin which you are interested in may only be present at very low concentrations. This can consume alot of venom if the perfusion is being done in large cells or at high flow rates. In order to reduce this, you may try reducing the size of the perfusion, lowering the flow rate or recycling and aerating the perfusate.
Solutions used for assay are usually compatible.
Of course, there are exceptions. Spider venoms include almost anything from small, highly charged and very basic polyamines and small peptides to extremely large and hydrophobic peptides. There are no fixed rules about stability and solubility of these toxins.