Enantioselective Separation on Chiral Au Nanoparticles

摘要: The surfaces of chemically synthesized Au nanoparticles have been modified with d- or l-cysteine to render them chiral and enantioselective for adsorption molecules. Their interaction compounds has probed by optical rotation measurements during exposure enantiomerically pure racemic propylene oxide. ability detect enantiospecific arises from the fact that specific polarized light (R)- (S)-propylene oxide is enhanced nanoparticles. This effect related previous observations circular dichroism adsorbates. More importantly, either selectively adsorb one enantiomer a solution oxide, thus leaving an enantiomeric excess in phase. (d-cysteine) (R)-pr...