Chiral Recognition of Lysine by Cyclodextrin Intercalated Layered Double Hydroxides

The chiral sorption of racemic lysine by carboxymethyl-α-cyclodextrin intercalated layered double hydroxides has been studied.It was found that L-lysine was preferentially adsorbed by carboxymethyl-α-cyclodextrin intercalated layered double hydroxides.Furthermore, the intraparticle diffusion model was successfully validated in this work.Intraparticle effective diffusivities (Deff) of lysine in carboxymethylα-cyclodextrin intercalated layered double hydroxides macroparticle were determined from the homogeneous Fickian diffusion model.Moreover, the crystallites diffusivity (Dc) and pore diffusivity (Dp) for the parallel diffusion model were determined.