Microgravity BioCells
BioCells are cell culture systems that are capable of supporting complex cell culture experiments. They consist of sterile, sealed cell environments between two optically clear gas-permeable growth surfaces. They support fluid injections, media exchanges, and fixation and preservation of cultures.
So far, these BioCells have successfully been flown on three missions. They come in single-well and 6-well versions.
Jon Beno, BioServe Payload R&D Engineer, explains how it works:
[video:http://youtu.be/h-IjL-Fh4uE]

NASA astronaut Peggy Whitson uses a microscope to view Magnetic 3D Biocells (visible inside yellow rectangle).