Nano‐Impact Electrochemistry: Effects of Electronic Filtering on Peak Height, Duration, and Area

Kanokkanchana, Kannasoot; Saw, En Ning; Tschulik, Kristina

doi:10.1002/celc.201801201

Cited by 8 publications

(8 citation statements)

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“…Recent reports have underscored the need to carefully consider instrument limitations and filtering effects on single nanoparticle impact measurements. 99,100 White and co-workers convincingly describe the need to combine modeling approaches to truly understand the limits in SEE measurements, an approach that should be considered more widely. 99 Chemical Amplification Schemes.…”

Section: Journal Of the American Chemical Societymentioning

confidence: 99%

Perspective and Prospectus on Single-Entity Electrochemistry

2018

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Single-entity electrochemistry (SEE) describes a recent trend in state-of-the-art electrochemistry applied to the study of individual "things." Conceptually, SEE covers fundamentals and applications of SEE, as well as methods and tools to make SEE measurements. SEE is especially appealing, as it unifies different branches of electrochemistry and comingles diverse approaches and techniques toward similar goals. In this Perspective, motivations and advantages of SEE are considered. A brief historical perspective and overview of recent ideas and directions in research in SEE are considered. In closing, future challenges, opportunities, and destinations related to SEE are discussed.

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Section: Journal Of the American Chemical Societymentioning

confidence: 99%

Perspective and Prospectus on Single-Entity Electrochemistry

2018

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“…For example, studies of single AgNP dynamics on UMEs, beginning with Compton's work, have been extensively pursued over the past several years 16 . Recently, complicated multiple spikes in the current response were observed for the electrooxidation of a single AgNP using high-resolution electrochemical instruments 17,18 . These experiments have been spearheaded by Oja et al 13 , Ustarroz et al 14 and our group 15 .…”

mentioning

confidence: 99%

Exploring dynamic interactions of single nanoparticles at interfaces for surface-confined electrochemical behavior and size measurement

Chen

Wang

et al. 2020

Nat Commun

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With the development of new instruments and methodologies, the highly dynamic behaviors of nanoparticle at the liquid-solid interface have been studied. However, the dynamic nature of the electrochemical behavior of individual nanoparticles on the electrode interface is still poorly understood. Here, we generalize scaling relations to predict nanoparticle-electrode interactions by examining the adsorption energy of nanoparticles at an ultramicroelectrode interface. Based on the theoretical predictions, we investigate the interaction-modulated dynamic electrochemical behaviors for the oxidation of individual Ag nanoparticles. Typically, significantly distinct current traces are observed owing to the adsorption-mediated motion of Ag nanoparticles. Inspired by restraining the stochastic paths of particles in the vicinity of the electrode interface to produce surface-confined current traces, we successfully realize high-resolution size measurements of Ag nanoparticles in mixed-sample systems. This work offers a better understanding of dynamic interactions of nanoparticles at the electrochemical interface and displays highly valuable applications of single-entity electrochemistry.

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“…However, these methods are not able to fully avoid the interference of the noise, especially in the measurements where small sizes of nanoparticles are analyzed. In addition, the use of low-pass filtering system would very probably cause a distortion to the original signals ( Kätelhön et al, 2016 ; Kanokkanchana et al, 2018 ).…”

Section: Resultsmentioning

confidence: 99%

Rapid and Accurate Data Processing for Silver Nanoparticle Oxidation in Nano-Impact Electrochemistry

Zhao

Zhou

2021

Front. Chem.

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In recent years, nano-impact electrochemistry (NIE) has attracted widespread attention as a new electroanalytical approach for the analysis and characterization of single nanoparticles in solution. The accurate analysis of the large volume of the experimental data is of great significance in improving the reliability of this method. Unfortunately, the commonly used data analysis approaches, mainly based on manual processing, are often time-consuming and subjective. Herein, we propose a spike detection algorithm for automatically processing the data from the direct oxidation of sliver nanoparticles (AgNPs) in NIE experiments, including baseline extraction, spike identification and spike area integration. The resulting size distribution of AgNPs is found to agree very well with that from transmission electron microscopy (TEM), showing that the current algorithm is promising for automated analysis of NIE data with high efficiency and accuracy.

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Nano‐Impact Electrochemistry: Effects of Electronic Filtering on Peak Height, Duration, and Area

Cited by 8 publications

References 0 publications

Perspective and Prospectus on Single-Entity Electrochemistry

Perspective and Prospectus on Single-Entity Electrochemistry

Exploring dynamic interactions of single nanoparticles at interfaces for surface-confined electrochemical behavior and size measurement

Rapid and Accurate Data Processing for Silver Nanoparticle Oxidation in Nano-Impact Electrochemistry

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