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Related Experiment Video

Updated: Jul 5, 2026

TD-DFT Guided Advanced E-Eye Sensing Technique for On-site Quantification of Fe, Cr, F, and As in the Environmental, Biological, and Food Samples
09:51

TD-DFT Guided Advanced E-Eye Sensing Technique for On-site Quantification of Fe, Cr, F, and As in the Environmental, Biological, and Food Samples

Published on: September 19, 2025

Modulating Electronic Structure via Bimetallic D-Band Engineering toward an Ultrasensitive Sensor Platform for

Caiyu Ge1, Qi Chen2, Jiejun Li1

  • 1Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, People's Republic of China.

ACS Sensors
|July 4, 2026
PubMed
Summary

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Interface and defect engineering of hierarchical Ti<sub>3</sub>C<sub>2</sub>/Co@CeO<sub>2</sub>-NCNT nanocomposite for ultrasensitive electrochemical determination of pesticide bithionol.

Journal of hazardous materials·2026
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S-scheme Bi<sub>2</sub>S<sub>3</sub>/FeIn<sub>2</sub>S<sub>4</sub> heterojunction for ultrasensitive photoelectrochemical detection of flutamide.

Talanta·2026
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In Situ Grown ZnIn<sub>2</sub>S<sub>4</sub>@ZnWO<sub>4</sub> Heterojunction for Highly Sensitive Photoelectrochemical Detection of Chlorogenic Acid.

ACS sensors·2026
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Construction of TiO<sub>2</sub>-N-doped carbon nanocakes @ Cr<sub>2</sub>O<sub>3</sub>‑carbon nanonets interface by controllable metal-organic frameworks-on-metal-organic frameworks heterostructure carbonization: A new strategy for portable detection of caffeic acid.

Journal of colloid and interface science·2026
Same author

Integration of MOF-on-MOF-Derived Core-Shell CoFe@Fe<sub>3</sub>Mo<sub>3</sub>C with Graphene Oxide@Carbon Nanobubbles for Highly Selective Detection of Flutamide.

Small (Weinheim an der Bergstrasse, Germany)·2026
Same author

The development of high-density aggregation spatial distribution patterns under high stress.

Frontiers in plant science·2026

This study developed a novel electrochemical sensor using a metal-organic framework (MOF) composite for detecting chlorogenic acid (CA). The sensor shows high sensitivity and accuracy, offering a reliable method for trace CA analysis in food products.

Area of Science:

  • Materials Science
  • Electrochemistry
  • Analytical Chemistry

Background:

  • Pure metal-organic frameworks (MOFs) suffer from poor conductivity, and MOF-derived carbons often face structural collapse.
  • Developing robust and sensitive electrochemical sensors for trace analyte detection remains a significant challenge.

Purpose of the Study:

  • To construct a highly conductive and stable electrochemical sensing interface for chlorogenic acid (CA) detection.
  • To investigate the synergistic effects of bimetallic alloys and N-doped carbon nanosheets derived from MOFs.

Main Methods:

  • Integration of UiO-66-NH2 MOF with bimetallic CoFe alloy-embedded N-doped carbon nanosheets (CoFe@NC).
  • Electrochemical characterization, including cyclic voltammetry and amperometry.
  • Density functional theory (DFT) calculations, in-situ Raman spectroscopy, UV-vis spectrophotometry, and high-performance liquid chromatography (HPLC).
Keywords:
UiO-66caffeic acidelectrochemical sensorfood detectiontheoretical calculations

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Main Results:

  • The CoFe@NC composite exhibited a large specific surface area (227.58 m2·g-1) and uniform morphology.
  • The sensor achieved a wide linear range (0.001-7 μM) and an ultralow detection limit (0.29 nM) for CA.
  • Elucidation of the reaction mechanism and synergistic enhancement effect through DFT and experimental analyses.

Conclusions:

  • The developed MOF-derived composite provides a high-performance sensing platform for trace CA detection.
  • This work demonstrates a novel strategy for designing electrochemical sensors using hierarchically structured MOF composites.
  • The sensor showed excellent accuracy and reliability when applied to real food samples.