Detection of single exosomes with a closed wireless nanopore electrode

Cui, Ling-Fei; Xu, Sijia; Liang, Chi-Ming; Yu, Ru‐Jia; Li, Liang; Ying, Yi‐Lun; Long, Yi‐Tao

doi:10.1360/tb-2019-0224

Cited by 2 publications

(5 citation statements)

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“…Wireless nanopore electrodes (WNEs), where a conductive metal is placed at the very tip of the nanopore, have been developed to serve as both a sensor and a nanopore . WNEs can be in either open or closed configuration. − In the open configuration, faradaic processes at the metal tip produce ionic current responses through the bipolar electrochemistry between the cis and trans sides of the open WNE. Recent reviews detailed applications and utility of WNEs for SEE and nanoelectrochemistry. ,, Long and co-workers demonstrated the use of a WNE for nanoconfined electrochemical sensing of single silver nanoparticles (AgNPs) .…”

Section: Nanopore and Ion Channel Measurementsmentioning

confidence: 99%

“…WNEs can be in either open or closed configuration. − In the open configuration, faradaic processes at the metal tip produce ionic current responses through the bipolar electrochemistry between the cis and trans sides of the open WNE. Recent reviews detailed applications and utility of WNEs for SEE and nanoelectrochemistry. ,, Long and co-workers demonstrated the use of a WNE for nanoconfined electrochemical sensing of single silver nanoparticles (AgNPs) . Contrary to popular belief, both faradaic and capacitive currents were found to contribute to the output current signal.…”

Section: Nanopore and Ion Channel Measurementsmentioning

confidence: 99%

“… 144 WNEs can be in either open or closed configuration. 145 − 147 In the open configuration, faradaic processes at the metal tip produce ionic current responses through the bipolar electrochemistry between the cis and trans sides of the open WNE. Recent reviews detailed applications and utility of WNEs for SEE and nanoelectrochemistry.…”

Section: Nanopore and Ion Channel Measurementsmentioning

confidence: 99%

“…Recent reviews detailed applications and utility of WNEs for SEE and nanoelectrochemistry. 145 , 146 , 148 Long and co-workers demonstrated the use of a WNE for nanoconfined electrochemical sensing of single silver nanoparticles (AgNPs). 147 Contrary to popular belief, both faradaic and capacitive currents were found to contribute to the output current signal.…”

Section: Nanopore and Ion Channel Measurementsmentioning

confidence: 99%

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Recent Developments in Single-Entity Electrochemistry

Zhang,

Wahab,

Jallow

et al. 2024

Anal. Chem.

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rich approaches like SEE, is akin to swimming against the tide. A recent review from Long and co-workers gave persuasive views of new ways to think about data treatment in SEE, and interested readers are encouraged to consider the points raised. 268 Ultimately, SEE is well-positioned to advance further as measurement techniques improve in hardware, data treatment, and theory and as programming and the Internet of Things expand. We expect that interest in SEE will flourish as our science evolves.

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Section: Nanopore and Ion Channel Measurementsmentioning

confidence: 99%

Section: Nanopore and Ion Channel Measurementsmentioning

confidence: 99%

Section: Nanopore and Ion Channel Measurementsmentioning

confidence: 99%

Section: Nanopore and Ion Channel Measurementsmentioning

confidence: 99%

See 2 more Smart Citations

Recent Developments in Single-Entity Electrochemistry

Zhang,

Wahab,

Jallow

et al. 2024

Anal. Chem.

View full text Add to dashboard Cite

show abstract

“…Wireless nanopore electrode (WNE) has been developed rapidly with wide applications by virtue of the characteristics of easy fabrication and high sensitivity. , It takes advantage of bipolar electrochemistry at the very tip of the nanopore to characterize single nanoparticles and redox biomolecules. For the closed-type WNE (CWNE), the metal nanotip is sealed inside the nanopipette, which is not in contact with the electrode wires.…”

mentioning

confidence: 99%

In Situ Characterization of Oxygen Evolution Electrocatalysis of Silver Salt Oxide on a Wireless Nanopore Electrode

Cui

Ying

et al. 2022

Anal. Chem.

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Silver salt oxide shows superior oxidation ability for the applications of superconductivity, sterilization, and catalysis. However, due to the easy decomposition, the catalytic properties of silver salt oxide are difficult to characterize by conventional methods. Herein, we used a closed-type wireless nanopore electrode (CWNE) to in situ and real-time monitor the electrocatalytic performance of Ag7NO11 in the oxygen evolution reaction. The real-time current recording revealed that the deposited Ag7NO11 on the CWNE tip greatly enhanced the oxidative capacity of the electrode, resulting in water splitting. The statistical event analysis reveals the periodic O2 bubble formation and dissolution at the Ag7NO11 interface, which ensures the characterization of the oxygen evolution electrocatalytic process at the nanoscale. The calculated k cat and Markov chain modeling suggest the anisotropy of Ag7NO11 at a low voltage may lead to multiple catalytic rates. Therefore, our results demonstrate the powerful capability of CWNE in direct and in situ characterization of gas–liquid–solid catalytic reactions for unstable catalysts.

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Detection of single exosomes with a closed wireless nanopore electrode

Cited by 2 publications

References 0 publications

Recent Developments in Single-Entity Electrochemistry

Recent Developments in Single-Entity Electrochemistry

In Situ Characterization of Oxygen Evolution Electrocatalysis of Silver Salt Oxide on a Wireless Nanopore Electrode

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