Preparation and Application of Photoelectrochemical Sensors

A special issue of Chemosensors (ISSN 2227-9040). This special issue belongs to the section "Applied Chemical Sensors".

Deadline for manuscript submissions: closed (20 July 2024) | Viewed by 1714

Special Issue Editors


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Guest Editor
School of Chemistry and Chemical Engineering, University of Jinan, Jinan, China
Interests: photoelectrochemical materials; biosensors

E-Mail Website
Guest Editor
School of Chemistry and Chemical Engineering, University of Jinan, Jinan, China
Interests: photoelectrochemical sensors; ECL sensor; biomarker sensor

Special Issue Information

Dear Colleagues,

The design and preparation of photoelectrochemical sensors for biomarkers of disease is of immense importance. New photoelectrochemical sensors provide a unique strategy for the new generation of medicine devices. For example, TiO2/CdS-based photoelectrochemical sensors can be used efficiently for biomarkers of cancer such as mRNA, which in turn can save lives and lower the capital cost for early cancer detection. The topics covered in this Special Issue will represent recent innovations in photoelectrochemical sensor design and application of sensors to detect biomarkers of disease detection. Biomarkers of disease, such as small molecular mRNA, as well special enzymes will be covered in this Special Issue. For this Special Issue, both review and original research articles from a broad spectrum of disciplines such as biochemistry, medicine, analytical science, environmental science, and materials science that highlight the latest developments and future challenges in this exciting filed of photoelectrochemical sensors are welcomed.

Prof. Dr. Mei Yan
Dr. Jing Zhang
Guest Editors

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Keywords

  • photoelectrochemistry material
  • biomarker of disease detection
  • enzyme-based sensors
  • DNA biosensors
  • aptamer-functionalized sensors

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Published Papers (1 paper)

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Research

14 pages, 6473 KiB  
Article
Research on the Detection of Hg(II) in Seawater Using GR-MWCNTs/CeO2-Modified Electrodes
by Huili Hao, Chengjun Qiu, Wei Qu, Yuan Zhuang, Xiaochun Han, Wei Tao, Yang Gu, Zizi Zhao, Haozheng Liu and Wenhao Wang
Chemosensors 2024, 12(7), 128; https://doi.org/10.3390/chemosensors12070128 - 4 Jul 2024
Cited by 2 | Viewed by 1259
Abstract
Hg(II), as an extremely hazardous heavy metal contaminant in the environment, poses a significant potential hazard to human health and ecosystems. A GR-MWCNTs-COOH/CeO2/Nafion composite film-modified glassy carbon electrode was prepared using the drop-casting method in this study. The GR-MWCNTs-COOH/CeO2/Nafion/GCE [...] Read more.
Hg(II), as an extremely hazardous heavy metal contaminant in the environment, poses a significant potential hazard to human health and ecosystems. A GR-MWCNTs-COOH/CeO2/Nafion composite film-modified glassy carbon electrode was prepared using the drop-casting method in this study. The GR-MWCNTs-COOH/CeO2/Nafion/GCE was electrochemically investigated through cyclic voltammetry (CV) and differential pulse stripping voltammetry (DPSV). Additionally, the surface morphologies of the composite film were evaluated using scanning electron microscopy (SEM). The conditions, such as buffer solution, pH, deposition potential, deposition time, modified film thickness, and Nafion content, were optimized. Under optimal experimental conditions, a good linear relationship between the peak current response of Hg(II) and its concentration in the range of 5–100 μg·L−1 was observed, with a detection limit of 0.389 μg·L−1. When it was used to detect Hg(II) in offshore seawater, the recovery rate ranged from 94.72% to 103.8%, with RSDs ≤ 5.79%. Full article
(This article belongs to the Special Issue Preparation and Application of Photoelectrochemical Sensors)
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