Publication Date:
2015-08-18
Description:
The normal growth rates of the {110} faces of tetragonal hen egg-white lysozyme crystals, R , were measured as a function of the supersaturation σ parameter using a reflection type interferometer under μ G at the International Space Station (NanoStep Project). Since water slightly evaporated from in situ observation cells during a long-term space station experiment for several months, equilibrium temperature T e changed, and the actual σ , however, significantly increased mainly due to the increase in salt concentration C s . To correct σ , the actual C s and protein concentration C p , which correctly represent the measured T e value in space, were first calculated. Second, a new solubility curve with the corrected C s was plotted. Finally, the revised σ was obtained from the new solubility curve. This correction method successfully revealed that the 2.8% water was evaporated from the solution, leading to 2.8% increase in the C s and C p of the solution.
Print ISSN:
0034-6748
Electronic ISSN:
1089-7623
Topics:
Electrical Engineering, Measurement and Control Technology
,
Physics
Permalink