Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Microbial Biosensors

Microbial Biosensors

Microbial biosensors are analytical devices that utilize living microbes to detect specific substances through measurable signals. These devices consist of two main components: biosensing organisms and signal-transducing elements. Biosensing organisms, such as Escherichia coli or Saccharomyces cerevisiae, are typically housed in multiwell plates connected to transducers, enabling rapid, real-time detection of target analytes.Signal Generation MechanismWhen a target analyte—such as...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Serum concentrations of antioxidant vitamins and carotenoids are low in individuals with a history of attempted suicide.

Nutritional neuroscience·2007

Same author

Arsenic trioxide induces different gene expression profiles of genes related to growth and apoptosis in glioma cells dependent on the p53 status.

Molecular biology reports·2007

Same author

Role of p38 mitogen-activated protein kinases in cardioprotection of morphine preconditioning.

Chinese medical journal·2007

Same author

Rapamycin inhibits osteoblast proliferation and differentiation in MC3T3-E1 cells and primary mouse bone marrow stromal cells.

Journal of cellular biochemistry·2007

Same author

[Studies on chemical constituents of Salsola collina].

Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica·2007

Same author

Functional characterization of the Arabidopsis eukaryotic translation initiation factor 5A-2 that plays a crucial role in plant growth and development by regulating cell division, cell growth, and cell death.

Plant physiology·2007

Same journal

Portable Fluorescence Photonic Crystal (NCQD@ZIF-8) Sensor for Ferric and Ascorbic Acid Detection.

Journal of fluorescence·2026

Same journal

Cascaded Förster Energy Transfer in ZnO QDs/F8BT/TIPS-P Hybrid Heterojunction for Broadband Photodetection.

Journal of fluorescence·2026

Same journal

Photophysics of Self-Assembled PHE-PHE/PVK Systems Studied by FLIM.

Journal of fluorescence·2026

Same journal

Theoretical Insights Into the Effect of π-Conjugation Extension on Photophysical Properties and ESIPT Behavior of a Novel Benzimidazole-Based Fluorophore.

Journal of fluorescence·2026

Same journal

A Multifunctional Luminescent Tb-MOF for Selective Fluorometric Detection of Cr(VI) and Steroid Hormones.

Journal of fluorescence·2026

Same journal

Donor-Acceptor Organic Fluorophores Encapsulated in Polystyrene Nanoparticles as High-Brightness Reporters for Fluorescent Lateral Flow Immunoassay of C-Reactive Protein.

Journal of fluorescence·2026

See all related articles

Search research articles

Related Experiment Video

Updated: Apr 8, 2026

Bacterial Detection & Identification Using Electrochemical Sensors

Bacterial Detection & Identification Using Electrochemical Sensors

Published on: April 23, 2013

Turn-On-Fluorescence Sensor and Solid Sensory Chip for Cyanide Detection.

Muhammad Zahid¹, Nadeem Raza², Samuel Bonne³

¹College of Chemistry and Chemical Engineering, Shanxi University, Taiyuan, 030006, PR China.

Journal of Fluorescence

|June 28, 2025

Summary

This summary is machine-generated.

A novel triazole-ferric complex acts as a selective sensor for cyanide ions, turning non-emissive to fluorescent upon detection. This chemodosimetric probe offers a sensitive method for environmental monitoring of toxic cyanide.

Keywords:

Chemodosimeter Chromogenic Cyanide ion Fluorescence Sensor Sensory chip Turn-on

More Related Videos

Experimental Protocol for Detecting Cyanobacteria in Liquid and Solid Samples with an Antibody Microarray Chip

Experimental Protocol for Detecting Cyanobacteria in Liquid and Solid Samples with an Antibody Microarray Chip

Published on: February 7, 2017

Genetic Modification of Cyanobacteria by Conjugation Using the CyanoGate Modular Cloning Toolkit

Genetic Modification of Cyanobacteria by Conjugation Using the CyanoGate Modular Cloning Toolkit

Published on: October 31, 2019

Related Experiment Videos

Last Updated: Apr 8, 2026

Bacterial Detection & Identification Using Electrochemical Sensors

Bacterial Detection & Identification Using Electrochemical Sensors

Published on: April 23, 2013

Experimental Protocol for Detecting Cyanobacteria in Liquid and Solid Samples with an Antibody Microarray Chip

Experimental Protocol for Detecting Cyanobacteria in Liquid and Solid Samples with an Antibody Microarray Chip

Published on: February 7, 2017

Genetic Modification of Cyanobacteria by Conjugation Using the CyanoGate Modular Cloning Toolkit

Genetic Modification of Cyanobacteria by Conjugation Using the CyanoGate Modular Cloning Toolkit

Published on: October 31, 2019

Area of Science:

Coordination Chemistry
Analytical Chemistry
Materials Science

Background:

Development of selective and sensitive probes for anionic species is crucial for environmental monitoring.
Cyanide (CN⁻) is a highly toxic anion requiring efficient detection methods.
Triazole-ferric complexes offer potential as photophysical sensors due to their tunable properties.

Purpose of the Study:

To synthesize and characterize a triazole-ferric complex as a chemodosimetric probe.
To evaluate the photophysical response of the probe towards various anionic species.
To establish the selectivity and sensitivity of the probe for cyanide detection.

Main Methods:

Synthesis of a triazole-ferric complex.
Photophysical characterization (absorption and fluorescence spectroscopy) upon treatment with various anions.
Fluorescence and emission titration to determine stoichiometry and limit of detection (LOD).
Fabrication of the probe on porous silicon for visual detection.

Main Results:

The triazole-ferric complex selectively detected cyanide ions (CN⁻) among tested anions, exhibiting a distinguishable absorption pattern.
Upon interaction with KCN, the non-emissive probe generated significant fluorescence at 478 nm (excited at 356 nm) with an intensity of 1207 a.u.
Fluorescence titration confirmed an equimolar stoichiometric relationship and a low LOD of 0.321 × 10⁻⁷ M for cyanide.
The probe immobilized on porous silicon showed a visible color change from blackish-yellow to yellow upon exposure to cyanide.

Conclusions:

The synthesized triazole-ferric complex functions as an effective chemodosimetric sensor for selective and sensitive detection of cyanide.
The probe's mechanism involves the displacement of a quenched fluorescent moiety by cyanide ions, leading to fluorescence enhancement.
The probe demonstrates practical applicability for visual and instrumental detection of cyanide in environmental samples.