Title

Temperature-Induced Tunable Assembly of Columnar Phases of Nanorods

Publication Date

5-26-2020

Department

Chemical and Biological Engineering; Materials Science and Engineering; Physics and Astronomy; Neuroscience; Ames Laboratory

Campus Units

Ames Laboratory, Chemical and Biological Engineering, Materials Science and Engineering, Physics and Astronomy, Neuroscience

OSTI ID+

1632181

Report Number

IS-J 10234

DOI

10.1021/acsnano.0c01540

Journal Title

ACS Nano

Volume Number

14

Issue Number

5

First Page

6007

Last Page

6012

Abstract

We report on the assembly of gold nanorods functionalized with poly(ethylene glycol) in aqueous suspensions by electrostatic control and hydrogen bonds provided by polyelectrolyte linkers (i.e., interpolymer complexation processes). Small-angle X-ray scattering reveals that the quality and stability of the assemblies into the hexagonal columnar phases increase with temperature. Our study shows that the lattice constant of the ordered structures is tunable over a wide range of values by the interplay between electrostatic and hydrophobic effects.

DOE Contract Number(s)

AC02-07CH11358; AC02-06CH11357

Language

en

Publisher

Iowa State University Digital Repository, Ames IA (United States)

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