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Cartoon of the Bioprocessing Units used to Assess Macrophage Cytokine Secretion: Cells were house on beads in chamber C. After orbital insertion, B6MP102 cells were stimulated with LPS stored in medium in chamber A. After 12-24 hrs. the supernatant was passed through a filter that would exclude the cells and stored in chamber b. The supernatant was assayed for cytokines upon the return to Earth.