Elucidating the role of surfactant structural parameters in Au nanoparticle morphology.

ABSTRACT: The use of cationic quaternary ammonium halide as a surfactant is popular in aqueous seed-mediated growth methods of noble metal nanoparticles (NPs). Despite the effective shape control of NPs that can be achieved by modifying the surfactant chemistry, these structural parameters have been insufficiently probed. The number of cationic quaternary ammonium halide surfactants explored for the synthesis of Au NPs have been limited primarily to cetyltrimethylammonium bromide (CTAB) and cetyltrimethylammonium chloride (CTAC). In this study, we investigate the effect of structural parameters, including the headgroup, chain length, and counter-anion of the quaternary ammonium halides, on the resultant Au NPs formed using seed-mediated synthesis. By employing pentatwinned Au NPs as the starting see

SUBMITTER: Roy D 

PROVIDER: S-EPMC12681259 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature