Hydrogel Composition Effects on Performance as Single-Walled Carbon Nanotube Purification Media.

A clear trend is present demonstrating that Sephacryl with a smaller S-number elutes a greater fraction of adsorbed SWNTs, with process efficiency decreasing from 40–50% among Sephacryl S-100, S-200, and S-300, down to ≈35% for S-400 and ≈10% for S-500.

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These images demonstrate that the surface of Sephacryl S-500 has both more voids and larger voids than that of Sephacryl S-100, with an evident trend in both the number and relative size of voids increasing from S-100 to S-500.

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