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Figure 6
Exemplary results of crystallization experiments for proteinase K (a, b) and thermolysin (c, d) using the same crystallization conditions for conventional hanging-drop crystallization (a, c) and on-chip crystallization on Roadrunner I chips (b, d). The proteinase K crystals are around 30 µm in size and appeared overnight. The thermolysin crystals needed 1–2 days to reach a maximal size of ∼35 × 150 µm. The scale bars at the bottom right corners each have a length of 200 µm. The different background colors in the pictures showing on-chip crystallization stem from the different polylactic acid colors used for 3D-printing of the crystallization chambers.

Volume 6| Part 4| July 2019| Pages 714-728
ISSN: 2052-2525