Related Experiment Video
Updated: Jun 17, 2026
09:24
Optical Screening of Novel Bacteria-specific Probes on Ex Vivo Human Lung Tissue by Confocal Laser Endomicroscopy
Published on: November 29, 2017
7.9K
Lipid-Mimicking Fluorescent Probe for Selective Bacterial Imaging and Rapid Antibiotic Screening
Chao Wang1,2,3, Rupeng Bu1, Xinming Guo3
1Shandong Key Laboratory of Applied Technology for Protein and Peptide Drugs, Institute of Biopharmaceutical Research, Liaocheng University, Liaocheng 252059, China.
Analytical Chemistry
|January 13, 2026
Summary
Researchers developed a novel fluorescent probe, TB12NS, for selective bacterial imaging. This probe enables rapid antibiotic screening by detecting changes in bacterial membranes.
Area of Science:
- Microbiology
- Chemical Biology
- Biomedical Engineering
Background:
- Accurate bacterial discrimination is crucial for diagnostics and research.
- Developing selective probes for bacterial imaging and antibiotic screening presents significant challenges.
Purpose of the Study:
- To introduce TB12NS, a novel lipid-mimicking fluorescent probe.
- To demonstrate its utility in selective bacterial imaging and rapid antibiotic screening.
Main Methods:
- TB12NS was designed with a donor-π-acceptor luminophore, hydrophobic chain, and hydrophilic headgroup.
- The probe targets phospholipid-rich bacterial cytoplasmic membranes.
- Fluorescence responses were analyzed for Gram-positive bacteria and in the presence of antibiotics.
Main Results:
- TB12NS showed selective fluorescence for Gram-positive bacteria, aiding discrimination and membrane polarity sensing.
- The probe exhibited enhanced fluorescence upon interaction with Gram-negative bacteria and membrane-disrupting antibiotics.
- This allowed for probing membrane integrity and evaluating antibiotic efficacy.
Conclusions:
- TB12NS serves as a robust platform for selective bacterial imaging.
- It enables rapid screening of membrane-disrupting antibiotics.
