Fig. 3: Experimental setup and samples used in the space experiment.
From: Clustering of charged colloidal particles in the microgravity environment of space
a Sample bag, consisting of two tetra-pack compartments connected via a breakable separator. b The solution in the two chambers is mixed by squeezing the bag. c An example of a sample used in a space experiment. The sample is tied with string for proper handling in microgravity. d Sample bag in a shipping container. e The UV irradiation system. The bag is placed in the apparatus and the sample is immobilized by UV irradiation. The sample is dissolved in a UV-curing gelator. f Sample (Titania #23) returned to the ground. The sample was removed from the bag. g Cross section of the gel-fixed space sample and the ground sample. The space sample is uniformly white, while the particles in the ground sample are localized near the gel surface.
