Issue 52, 2024

Observing atomically precise nanocluster aggregates in solution by mass photometry

Abstract

We report the first mass photometric characterization of nanoaggregates of atomically precise nanoclusters (NCs) in solution. The differently-sized nanoaggregates of silver–gold alloy NCs, [Ag11−xAux(DPPB)5Cl5O2]2+ [x = 1–5 and DPPB = 1,4-bis(diphenylphosphino)butane], formed in solution, were examined by mass photometry (MP) with a protein calibration. In addition, we conducted MP studies of varying solvent composition to understand the structural evolution of nanoaggregates. The masses of nanoaggregates were correlated to structures of 15 to 50 nm diameter observed in cryo-electron microscopy.

Graphical abstract: Observing atomically precise nanocluster aggregates in solution by mass photometry

Supplementary files

Article information

Article type
Communication
Submitted
25 Jan 2024
Accepted
15 May 2024
First published
16 May 2024

Chem. Commun., 2024,60, 6655-6658

Observing atomically precise nanocluster aggregates in solution by mass photometry

J. Roy, I. Marathe, V. Wysocki and T. Pradeep, Chem. Commun., 2024, 60, 6655 DOI: 10.1039/D4CC00363B

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