ncsumicro

As far as I know there are multiple gas permeable membranes and tubings, but the main problem with this, especially in a bioreactor, is control of your gas release. Isobutylene has an LEL ( Lower Explosive Limit) of only 3%, so the membrane cannot be too permeable, but rather just enough to meet the requirements of the cells for growth.

I know that there is a bug in the artic regions of Scandinavia that will go into a "dormant" state during the winter and will literally get frozan in a block of ice. Then during the spring, when the ice melts, the bug will spring back to life. I cannot fo rthe life of me remember what the bug is called, but it could be a good place to start.

I'm looking to find a gas permeable membrane or tubing that can pass alkenes ( specifically isobutylene) through. For context sake this will be used in a continuous cell culture. If anyone has suggestions from previous experiences or knows of a good place to start, please give me a hand. Thanks!