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. Author manuscript; available in PMC: 2013 Jan 10.
Published in final edited form as: Results Pharma Sci. 2012;2:79–85. doi: 10.1016/j.rinphs.2012.11.001

Table 2.

Characterization of the nano-precipitation results at various protein concentrations at a 1:4 volume ratio of water-to-acetonitrile.

Protein Concentration (mg/ml) Precipitation yield (%) Insoluble aggregates (%) Residual activity (%) Diameter (nm)
Lysozyme 10 70 ± 11 2 ± 1 87 ± 5 86 ± 16
20 95 ± 4 1 ± 0 83 ± 1 92 ± 15
30 99 ± 1 1 ± 1 96 ± 2 168 ± 14
α-Chymotrypsin 10 77 ± 5 0 ± 0 78 ± 0 66 ± 16
20 83 ± 3 0 ± 0 100 ± 1 174 ± 16
30 83 ± 4 0 ± 0 100 ± 2 200 ± 12