Method for 3D atomic structure determination of multi-element nanoparticles with graphene liquid-cell TEM.

ABSTRACT: Determining the 3D atomic structures of multi-element nanoparticles in their native liquid environment is crucial to understanding their physicochemical properties. Graphene liquid cell (GLC) TEM offers a platform to directly investigate nanoparticles in their solution phase. Moreover, exploiting high-resolution TEM images of single rotating nanoparticles in GLCs, 3D atomic structures of nanoparticles are reconstructed by a method called "Brownian one-particle reconstruction". We here introduce a 3D atomic structure determination method for multi-element nanoparticle systems. The method, which is based on low-pass filtration and initial 3D model generation customized for different types of multi-element systems, enables reconstruction of high-resolution 3D Coulomb density maps for ordered

SUBMITTER: Heo J 

PROVIDER: S-EPMC9892495 | biostudies-literature | 2023 Feb

REPOSITORIES: biostudies-literature