Single-Digit Nanobubble Sensing via Nanopore Technology
Artikel i vetenskaplig tidskrift, 2024

Nanobubbles play an important role in diverse fields, including engineering, medicine, and agriculture. Understanding the characteristics of individual nanobubbles is essential for comprehending fluid dynamics behaviors and advancing nanoscale science across various fields. Here, we report a strategy based on nanopore sensors for characterizing single-digit nanobubbles. We investigated the sizes and diffusion coefficients of nanobubbles at different voltages. Additionally, the finite element simulation and molecular dynamics simulation were introduced to account for counterion concentration variation around nanobubbles in the nanopore. In particular, the differences in stability and surface charge density of nanobubbles under various solution environments have been studied by the ion-stabilized model and the DLVO theory. Additionally, a straightforward method to mitigate nanobubble generation in the bulk for reducing current noise in nanopore sensing was suggested. The results hold significant implications for enhancing the understanding of individual nanobubble characterizations, especially in the nanofluid field.


Wei Liu

Student vid Chalmers

Southeast University

Fei Zheng

Southeast University

University of Cambridge

Chinese Academy of Sciences

Chaofan Ma

Southeast University

Wei Xu

Southeast University

Yunfei Chen

Southeast University

Jingjie Sha

Southeast University

Analytical Chemistry

0003-2700 (ISSN) 1520-6882 (eISSN)

Vol. 96 23 9544-9550


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