Anisotropic gold nanoparticles, such as �patchy� particles or nanorods, are challenging to characterize on the molecular level. Our group and others have functionalized gold nanorods with organic ligands, polymers, and biomolecules, but many applications require a thorough understanding of the surface morphology. For example, nanorods are passivated by a bilayer of cetyltrimethylammonium bromide (CTAB), but little is known about the packing density, degree of interdigitation, or other features that affect the rods' reactivity and stability. In this research, we use a series of one- and two-dimensional NMR techniques to decipher the ligand morphology of anisotropic gold particles.

Molecular-level characterization of anisotropic nanoparticles with NMR spectroscopy

248th National Meeting (2014)

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