Issue 29, 2018

Dynamically imaging collision electrochemistry of single electrochemiluminescence nano-emitters

Abstract

The quest for new techniques to measure single nanomaterials is a great impetus to research efforts to understand individual behaviours. Here, we develop an electrochemiluminescence (ECL) microscopy for visualization of stochastic collision electrochemistry of single nano-emitters without the interference of current and optical background. This design uses a water-immersion objective to capture the ECL emission of nanoparticles near the specular electrode surface for enhancing light collection efficiency. The approach enables us to trace the collision trajectory of multiple nanoparticles and spatially distinguish simultaneous collisions. Results reveal that collision types, frequencies and ECL intensities significantly depend on surface natures, particle concentrations, and diffusion fluxes. By recording successive collisions, we develop a “relay probe” sensing platform for long-term research. This imaging technique displays great potential for applications in single-particle electrochemical and analytical research.

Graphical abstract: Dynamically imaging collision electrochemistry of single electrochemiluminescence nano-emitters

Supplementary files

Article information

Article type
Edge Article
Submitted
22 5月 2018
Accepted
29 6月 2018
First published
30 6月 2018
This article is Open Access

All publication charges for this article have been paid for by the Royal Society of Chemistry
Creative Commons BY-NC license

Chem. Sci., 2018,9, 6167-6175

Dynamically imaging collision electrochemistry of single electrochemiluminescence nano-emitters

C. Ma, W. Wu, L. Li, S. Wu, J. Zhang, Z. Chen and J. Zhu, Chem. Sci., 2018, 9, 6167 DOI: 10.1039/C8SC02251H

This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence. You can use material from this article in other publications, without requesting further permission from the RSC, provided that the correct acknowledgement is given and it is not used for commercial purposes.

To request permission to reproduce material from this article in a commercial publication, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party commercial publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements