Scalable fabrication of nano-to-micro carbon disk ultramicroelectrodes for single small extracellular vesicle detection.

Chem Commun (Camb)

College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, People's Republic of China.

Published: April 2025


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Article Abstract

Small extracellular vesicles (sEVs) play a crucial role in intercellular communication, but their nanoscale size and heterogeneity make analysis challenging. This study introduces a scalable method for fabricating disk carbon fiber ultramicroelectrodes (UMEs) with precise size control. Size-matched UMEs enable single-sEV detection blocking collisions, achieving a high signal-to-background ratio and low noise. This approach offers unprecedented resolution in determining sEV concentration and size distribution.

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http://dx.doi.org/10.1039/d5cc00793cDOI Listing

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