Issue 14, 2022

Profiling single-molecule reaction kinetics under nanopore confinement

Abstract

The study of a single-molecule reaction under nanoconfinement is beneficial for understanding the reactive intermediates and reaction pathways. However, the kinetics model of the single-molecule reaction under confinement remains elusive. Herein we engineered an aerolysin nanopore reactor to elaborate the single-molecule reaction kinetics under nanoconfinement. By identifying the bond-forming and non-bond-forming events directly, a four-state kinetics model is proposed for the first time. Our results demonstrated that the single-molecule reaction kinetics inside a nanopore depends on the frequency of individual reactants captured and the fraction of effective collision inside the nanopore confined space. This insight will guide the design of confined nanopore reactors for resolving the single-molecule chemistry, and shed light on the mechanistic understanding of dynamic covalent chemistry inside confined systems such as supramolecular cages, coordination cages, and micelles.

Graphical abstract: Profiling single-molecule reaction kinetics under nanopore confinement

Supplementary files

Article information

Article type
Edge Article
Submitted
07 Dec. 2021
Accepted
13 Marts 2022
First published
14 Marts 2022
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., 2022,13, 4109-4114

Profiling single-molecule reaction kinetics under nanopore confinement

W. Liu, Z. Yang, C. Yang, Y. Ying and Y. Long, Chem. Sci., 2022, 13, 4109 DOI: 10.1039/D1SC06837G

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