Diffusion of vitamin B12 in gellan gum-carbon nanotube hydrogels

We report on the diffusion of vitamin B
12
through gellan gum-carbon nanotube hydrogels. The addition of carbon nanotubes to gellan gum reduced the vitamin B12 diffusion coefficient from 1.70 × 10
⁻⁶
cm
²
/s to 0.70 × 10
⁻⁶
cm
²
/s.