Onboard space experiments: JCB-SGT has been used in the protein crystallization project of JAXA. A 3-cell type with 3 cylindrical vessels and a 6-cell type with 6 vessels on a 30 mm wide sheet are available. Various crystallization methods: Various crystallization methods, such as batch, vapor diffusion, counter diffusion, dialysis, and diffusion pair osmotic concentration can be performed. It is useful for the optimization of the conditions for space experiments and for ground-based control experiments. Soft material: The JCB-SGT is made of PET sheet. By crushing the silicon tube portion of the tubular sample container inside the JCB-SGT, the diffusion can be suppressed. With releasing, crystallization can be started at the same timing as in space experiments. Heat seal: After filling the sample, it is heat-sealed. This prevents leakage of liquid completely and ensures high reproducibility and reliability. Since the material is low gas permeability, water vapor permeation from inside the container is minimized and the crystals are stable for more than one year.
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