Volume 58, Issue 31 pp. 10542-10546
Communication

Direct Monitoring of Cell Membrane Vesiculation with 2D AuNP@MnO2 Nanosheet Supraparticles at the Single-Particle Level

Yunyun Ling

Yunyun Ling

Key Laboratory of Functional Molecular Solids, Ministry of Education, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, 241000 China

Search for more papers by this author
Di Zhang

Di Zhang

State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, College of Chemistry, Nankai University, Tianjin, 300071 China

Search for more papers by this author
Ximin Cui

Ximin Cui

Department of Physics, The Chinese University of Hong Kong, Shatin, Hong Kong, SAR, China

Search for more papers by this author
Meimei Wei

Meimei Wei

Key Laboratory of Functional Molecular Solids, Ministry of Education, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, 241000 China

Search for more papers by this author
Ting Zhang

Ting Zhang

State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, College of Chemistry, Nankai University, Tianjin, 300071 China

Search for more papers by this author
Prof. Dr. Jianfang Wang

Prof. Dr. Jianfang Wang

Department of Physics, The Chinese University of Hong Kong, Shatin, Hong Kong, SAR, China

Search for more papers by this author
Prof. Dr. Lehui Xiao

Corresponding Author

Prof. Dr. Lehui Xiao

State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, College of Chemistry, Nankai University, Tianjin, 300071 China

Search for more papers by this author
Prof. Dr. Yunsheng Xia

Corresponding Author

Prof. Dr. Yunsheng Xia

Key Laboratory of Functional Molecular Solids, Ministry of Education, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, 241000 China

Search for more papers by this author
First published: 21 May 2019
Citations: 64

Graphical Abstract

UFO-shaped supraparticles were synthesized for the dynamic monitoring of the cell membrane vesiculation process at the single-particle level.

Abstract

We herein demonstrate robust two-dimensional (2D) UFO-shaped plasmonic supraparticles made of gold nanoparticles (AuNPs) and MnO2 nanosheets (denoted as AMNS-SPs) for directly monitoring cell membrane vesiculation at the single-particle level. Because the decorated MnO2 nanosheets are ultrathin (4.2 nm) and have large diameters (230 nm), they are flexible enough for deformation and folding for parceling of the AuNPs during the endocytosis process. Correspondingly, the surrounding refractive index of the AuNPs increases dramatically, which results in a distinct red-shift of the localized surface plasmon resonance (LSPR). Such LSPR modulation provides a convenient and accurate means for directly monitoring the dynamic interactions between 2D nanomaterials and cell membranes. Furthermore, for the endocytosed AMNS-SPs, the subsequent LSPR blue-shift induced by etching effects of reducing molecules is promising for exploring the local environment redox states at the single-cell level.

The full text of this article hosted at iucr.org is unavailable due to technical difficulties.