Crystallization‐driven Nanoparticle Crystalsomes

Author:

Gao Lingfeng12,Mei Shan2,Qian Qian2,Yu Shichen2,Zhao Bin3ORCID,Tu Yingfeng1,Li Christopher Y.2ORCID

Affiliation:

1. Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application College of Chemistry Chemical Engineering and Materials Science Soochow University China

2. Department of Materials Science and Engineering Drexel University USA

3. Department of Chemistry University of Tennessee USA

Abstract

AbstractNanoparticle (NP) assembly has been extensively studied, and a library of NP superstructures has been synthesized. These intricate structures show unique collective optical, electronic, and magnetic properties. In this work, we report a bottom‐up approach for fabricating spherical gold nanoparticle (AuNP) assemblies that mimic colloidosomes. Co‐crystallization of lipoic acid‐end‐functionalized poly(ethylene oxide) (PEO) and AuNPs in solution via a self‐seeding method led to the formation of hollow spherical NP assemblies named nanoparticle crystalsomes (NPCs). Due to the spherical shape, the translational symmetry of PEO crystals is broken in NPCs, which can be attributed to the competition between NP close packing and polymer crystallization. This was confirmed by tuning the NPC morphology via varying the self‐seeding temperature, crystallization temperature, and PEO molecular weight. We envisage that this strategy paves the way to attaining exquisite morphological control of NP assemblies with broken translational symmetry.

Funder

Division of Materials Research

National Natural Science Foundation of China

Publisher

Wiley

Subject

General Chemistry,Catalysis

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