Related Experiment Video
Updated: May 6, 2026

03:55
A Sensitive Visual Method for the Detection of Hydrogen Sulfide Producing Bacteria
Published on: June 27, 2022
4.3K
A fluorescent probe for the biological signaling molecule H2S based on a specific H2S trap group
Jingyu Zhang1, Yuan-Qiang Sun, Jing Liu
1School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China. guow@sxu.edu.cn.
Abstract:
A fluorescent turn-on probe for H2S was exploited based on a H2S-induced substitution-cyclization cascade reaction towards the bis-electrophilic centers of a new H2S trap group 2-(iodomethyl)benzoate.
More Related Videos
Related Concept Videos
Labeling DNA Probes
7.8K
DNA probes are fragments of DNA labeled with a reporter tag to enable their detection or purification. The resulting labeled DNA probes can then hybridize to target nucleic acid sequences through complementary base-pairing, and may be used to recover or identify these regions.
Radioisotopes, fluorophores, or small molecule binding partners like biotin or digoxigenin, are the most widely used reporter tags for labeling DNA probes. These labels can be attached to the probe DNA molecule via...
Radioisotopes, fluorophores, or small molecule binding partners like biotin or digoxigenin, are the most widely used reporter tags for labeling DNA probes. These labels can be attached to the probe DNA molecule via...
7.8K
FISH - Fluorescent In-situ Hybridization
17.6K
Fluorescence in situ hybridization, or FISH, was developed in the early 1980s and has quickly become one of the most widely used techniques in cytogenetics. Labeled probes are used to bind complementary DNA or RNA sequences on a chromosome or in a region within a cell. Earlier, the probes could only be obtained by cloning or reverse transcription of a DNA template. Currently, the probe oligonucleotides can be synthesized synthetically. Additionally, with the advancement of optical techniques,...
17.6K
Reporter Genes
11.4K
Reporter genes are a type of protein-coding gene that are often tagged to a gene of interest. Once inside a target cell, reporter genes usually produce visually identifiable characteristics like fluorescence and luminescence when expressed along with the gene of interest. Thus, reporter genes “report” the presence or absence of genes of interest in an organism, determine the gene expression pattern, or track the physical location of a DNA segment or protein in the cell.
11.4K

