Related Experiment Video
Updated: May 30, 2026

06:33
Direct Detection of Isolevuglandins in Tissues Using a D11 scFv-Alkaline Phosphatase Fusion Protein and Immunofluorescence
Published on: July 5, 2021
A fluorescent turn-on probe for the detection of alkaline phosphatase activity in living cells
Tae-Il Kim1, Hyunjin Kim, Yongdoo Choi
1Department of Chemistry, Dankook University, Yongin-si, Gyeonggi-do, Korea.
Abstract:
Fluorescent probe 1, showing a high fluorescence turn-on signal ratio, enables the real-time imaging of endogenous alkaline phosphatase (ALP) activity in living cells, and the fast and quantitative analysis of enzyme activity at the single-cell level.
Related Concept Videos
Labeling DNA Probes
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...
Photoluminescence: Applications
Photoluminescence offers a wide range of applications due to its inherent sensitivity and selectivity. This technique allows for both direct and indirect analyses of the analyte. Direct quantitative analysis is possible when the analyte exhibits a favorable quantum yield for fluorescence or phosphorescence. However, an indirect analysis may be feasible if the analyte is not fluorescent or phosphorescent, or if the quantum yield is unfavorable. Indirect methods include reacting the analyte with...

