Continuous Encodable Reshaping of Gold Nanocrystals through Facet Modulation.

ABSTRACT: Shape control of nanocrystals (NCs) is crucial for tuning their assembly behavior and functional properties, yet the precise manipulation of facet composition remains challenging. Here, we present a nanocrystal reshaping strategy to control and modulate the facets of gold (Au) NCs. Our one-pot approach, conducted at room temperature, requires only initial Au NCs, Au³⁺ ions, and surfactants, distinguishing it from conventional reduction-mediated "etching-and-regrowth" methods. Detailed structural studies using electron microscopy, small-angle X-ray scattering (SAXS), and UV-vis spectroscopy reveal the surfactant-encoded pathway for NC transformation from shaped particles to spheres and then into various polyhedral shapes while preserving the individual particles' volume. The prop

SUBMITTER: Lu F 

PROVIDER: S-EPMC12291451 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature