Anisotropic surface functionalization of Au nanorods driven by molecular architecture and curvature effects.

ABSTRACT: This work suggests a novel strategy to coat the caps and body of Au-nanorods (Au-NRs) with end-grafted polymer layers of different compositions by taking advantage of the different curvature of these two regions. A molecular theory was used to theoretically investigate the effect of local curvature and molecular architecture (intramolecular connectivity of the monomers) on the adsorption of polymer mixtures on cylindrical (Au-NR body) and spherical (Au-NR caps) surfaces. The adsorption process was systematically studied as a function of the backbone length, number and position of branches, quality of the solvent and total number of monomers of the polymer molecules in the mixture. The balance between repulsive forces and polymer-surface and polymer-polymer attractions governs the amount an

SUBMITTER: Solveyra EG 

PROVIDER: S-EPMC6314812 | biostudies-literature | 2016 Oct

REPOSITORIES: biostudies-literature