Photoelectrochemical Coulometric Sensing of <i>Anabaena variabilis</i> Through a Mediated Electron Transfer System

Cho, Hyejun; Lee, Sung Yong; Kim, Sung-Hyun

doi:10.1002/bkcs.11821

Cited by 1 publication

(1 citation statement)

References 15 publications

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“…MCS disturbs the ecosystem balance with its mass growth and causes water pollution by generating toxins 29 . Therefore, it is important to detect harmful algae in real‐time to prevent the reproduction 30 . Since MCS is an electro‐inactive species, the electrochemical blocking method was used for real‐time analysis in this experiment (Scheme 1).…”

Section: Introductionmentioning

confidence: 99%

Single Microcystis Detection Through Electrochemical Collision Events on Ultramicroelectrodes

Lee

Song

et al. 2021

Bulletin Korean Chem Soc

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This study introduces the electrochemical detection of a single microcystis on an Au ultramicroelectrode based on single-entity electrochemistry. The electrochemical collisions occur when the microcystis is adsorbed on the electrode surface. This hinders the oxidation of the electroactive redox species in the solution, thus making the current decrease like a staircase. In this experiment, the current decrease caused by the collision which requires an appropriate concentration of the redox species and initial potential, providing information on migration effect by zeta-potential, and collision frequency. Comparison of the simulation results of the finite element method and the experimental results suggested that the staircase current decrease caused by the microcystis can occur due to collision not only on the electrode surface but also on the surrounding regions of the electrode surface (i.e., the active area). These results suggest various applications of the single-entity cell detection using the electrochemical method for real-time analysis.

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Section: Introductionmentioning

confidence: 99%