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. 2017 Oct 23;13(3):248–254. doi: 10.1016/j.ajps.2017.07.011

Table 2.

The details of solid dispersion systems in the simulation process.

SD system no. Weight ratio Molar ratio Numbers of ibuprofen Numbers of polymer chains Numbers of water molecules (water box) Total atom number in the systems Initial gyration radius
IBU/PEG 1:5 4:5 4 5 29,529 (30 Å) 89,434 13.37 Å
IBU/PVP 1:10 4:8 4 8 30,894 (30 Å) 94,012 13.75 Å
IBU/POL 1:10 4:10 4 10 36,036 (30 Å) 109,690 14.81 Å
IBU/PEG-2 1:5 16:20 16 20 22,579 (25 Å) 71,125 15.37 Å
IBU/PVP-2 1:10 16:32 16 32 32,480 (25 Å) 103,120 18.82 Å
IBU/POL-2 1:10 16:40 16 40 30,771 (25 Å) 98,641 19.12 Å