Enhanced sensitivity and selectivity of an electrochemical sensor for real-time propofol monitoring in anesthesia

Gao, Yang; Guo, Yaning; He, Ping; Liu, Zhijie; Chen, Yongxue

doi:10.1016/j.aej.2023.12.006

Cited by 3 publications

(1 citation statement)

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“…In addition, electrochemical sensors have also been widely used in industrial and civil environments to detect toxic gases [41]. In recent years, strategies for the development of EC sensors have been related to enhancing selectivity and detection limits [42][43][44] alongside the discipline of nanoscience and nanotechnology.…”

Section: Introductionmentioning

confidence: 99%

P-EcStat: A Versatile Design of Photoelectrochemical and Electrochemical Sensing System with Smartphone Interface via Bluetooth Low Energy

Huynh Vo,

Tran,

Tran

et al. 2024

Applied Sciences

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Electrochemical and photoelectrochemical sensors are a rapidly developing field in analytical chemistry. However, commercial systems often lack versatility and affordability, hindering wider adoption. Additionally, the absence of integrated excitation light sources limits their application in photoelectrochemical sensing. Here, we present a highly precise, versatile, affordable measurement system for both electrochemical and photoelectrochemical sensing applications. The system incorporates a three-electrode potentiostat with a synchronized excitation light source. This design enables the system to perform conventional electrochemical measurements like cyclic voltammetry, chronoamperometry, and photoelectrochemical amperometric measurements with controlled light excitation. The developed measurement system operates within a voltage range suitable for a measurable current range of 1 nA to 18 mA, with a high precision of 99%. The excitation source is a monochromatic LED system offering seven distinct wavelengths with digitally controlled intensity via a digital-to-analog converter. Furthermore, an Android-based user interface allows wireless system control via Bluetooth Low Energy. The report also details the construction of a photoelectrochemical experiment using copper (II) oxide nanorods synthesized by the hydrothermal process as the photoactive material employed to test the experiment on a potassium ferricyanide/potassium ferrocyanide solution. This user-friendly system allows broader exploration of electrochemical and photoelectrochemical sensing applications.

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