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Recent Advances in Chemical Sensors in Dalian University of Technology:...
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Recent Advances in Chemical Sensors in Dalian University of Technology: Fundamental Science and Applications

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

Deadline for manuscript submissions: 31 August 2025 | Viewed by 1354

Special Issue Editors

Prof. Dr. Chun Liu

E-Mail Website
Guest Editor
State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
Interests: luminescent materials; organometallic chemistry; supramolecular chemistry
Prof. Dr. Jinxuan Liu

E-Mail Website
Guest Editor
1. State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
2. Leicester International Institute, Dalian University of Technology, Panjin 124221, China
Interests: solar cells; water electrolysis; metal–organic framework thin film
Dr. Liyan Zhang

E-Mail Website
Guest Editor
Chemistry Analysis & Research Center, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
Interests: analytical chemistry; spectroscopy

Special Issue Information

Dear Colleagues,

To date, chemical sensors have been applied in many fields, and their rapid development has provided great convenience for human activities. This Special Issue aims to report on the latest research progress in the field of chemical sensors in the Dalian University of Technology, from theoretical research to practical application in various fields. The main topics include, but are not limited to, the following research directions: small-molecule organic fluorescent sensors and their application in research into biological detection; metal complex phosphorescent sensors and their application in detecting small-molecule pollutants; and the development and application of wearable electrochemical sensors and versatile sensors. All topics include review articles and research articles.

Prof. Dr. Chun Liu
Prof. Dr. Jinxuan Liu
Dr. Liyan Zhang
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Chemosensors is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2000 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • chemical sensors
  • fluorescent sensors
  • phosphorescent sensors
  • wearable electrochemical sensors
  • organic pollutants
  • biomarkers

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Further information on MDPI's Special Issue policies can be found here.

Published Papers (2 papers)

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15 pages, 4930 KiB  
Article
Organophosphorus Pesticide Photoelectrochemical/Electrochemical Dual-Mode Smartsensors Derived from Synergistic Co,N-TiO2@ZrO2/3DGH Platform
by Zhouxiaolong Zhang, Hongting Ma, Hao Mo and Nan Zhu
Chemosensors 2025, 13(5), 167; https://doi.org/10.3390/chemosensors13050167 - 5 May 2025
Viewed by 356
Abstract
Organophosphorus pesticides (OPs), while pivotal for agricultural productivity, pose severe environmental and health risks due to their persistence and bioaccumulation. Existing detection methods, such as chromatography and spectroscopy, face limitations in field adaptability, cost, and operational complexity. To address these challenges, this study [...] Read more.
Organophosphorus pesticides (OPs), while pivotal for agricultural productivity, pose severe environmental and health risks due to their persistence and bioaccumulation. Existing detection methods, such as chromatography and spectroscopy, face limitations in field adaptability, cost, and operational complexity. To address these challenges, this study introduces a novel dual-mode photoelectrochemical–electrochemical (PEC-EC) sensor based on a Co,N-TiO2@ZrO2/3DGH nanocomposite. The sensor synergistically integrates zirconium oxide (ZrO2) for selective OP capture via phosphate-Zr coordination, cobalt-nitrogen co-doped titanium dioxide (Co,N-TiO2) for visible-light responsiveness, and a three-dimensional graphene hydrogel (3DGH) for enhanced conductivity. In the PEC mode under light irradiation, OP adsorption induces charge recombination, yielding a logarithmic photocurrent attenuation with a detection limit of 0.058 ng mL−1. Subsequently, the EC mode via square wave voltammetry (SWV) self-validates the results, achieving a detection limit of 0.716 ng mL−1. The dual-mode system demonstrates exceptional reproducibility, long-term stability, and selectivity against common interferents. Parallel measurements revealed <5% inter-mode discrepancy, validating the intrinsic self-checking capability. This portable platform bridges the gap between laboratory-grade accuracy and field-deployable simplicity, offering transformative potential for environmental monitoring and food safety management. Full article
(This article belongs to the Special Issue Recent Advances in Chemical Sensors in Dalian University of Technology: Fundamental Science and Applications)
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14 pages, 4941 KiB  
Article
The Construction of Carbazole-Based Metal–Organic Frameworks as Fluorescent Probes for Picric Acid Detection
by Yichang Jia, Xin Wang, Hechuan Li and Cheng He
Chemosensors 2025, 13(3), 105; https://doi.org/10.3390/chemosensors13030105 - 13 Mar 2025
Viewed by 734
Abstract
Nitroaromatic-explosives (NEs) not only threaten global security but are also recognized as a highly toxic pollutant. Metal–organic framework Zn-Ms (Zn-M1, Zn-M2) were synthesized in this study via the coordination-driven self-assembly of Zn ions and a carbazole-based ligand [...] Read more.
Nitroaromatic-explosives (NEs) not only threaten global security but are also recognized as a highly toxic pollutant. Metal–organic framework Zn-Ms (Zn-M1, Zn-M2) were synthesized in this study via the coordination-driven self-assembly of Zn ions and a carbazole-based ligand L containing an aldehyde group. They inherited the excellent fluorescence performance of ligand L and could work as a fluorescent sensor for detecting picric acid (PA) at low concentrations. Zn-Ms showed an emission at 450 nm and exhibited a higher fluorescence quenching efficiency toward PA than other related NEs. The results suggest that the fluorescent response might be attributed to the inner filter effect (IFE); Förster resonance energy transfer (FRET); and possibly, photo-induced electron transfer (PET). In addition, the critical role of the aldehyde group as a recognition site was corroborated using a post-modification strategy. Full article
(This article belongs to the Special Issue Recent Advances in Chemical Sensors in Dalian University of Technology: Fundamental Science and Applications)
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