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Updated: Feb 18, 2026

Simultaneous Measurement of Mitochondrial Calcium and Mitochondrial Membrane Potential in Live Cells by Fluorescent Microscopy
Published on: January 24, 2017
Aggregation-Induced Fluorescence Probe for Monitoring Membrane Potential Changes in Mitochondria
Jun Li1,2, Nahyun Kwon1, Yerin Jeong1
1Department of Chemistry and Nano Science , Ewha Womans University , Seoul 120-750 , Korea.
Abstract:
Fluorescent probe 2 was designed for selectively determining mitochondria membrane potential changes. The probe selectively detects changes in the mitochondria membrane potential in a manner that is more sensitive than that of the commercially available indicator, Rodamine 123. As a result, the probe 2 is ideal for future studies designed to assess the functions of mitochondria in cells.
Insights
A new fluorescent probe was developed to accurately measure changes in mitochondria membrane potential. This probe offers higher sensitivity than existing indicators, making it valuable for studying cell function.
Area of Science:
- Cell Biology
- Biochemistry
- Molecular Biology
Background:
- Mitochondria are crucial organelles involved in cellular energy production and signaling.
- Mitochondrial membrane potential is a key indicator of mitochondrial function and cellular health.
- Accurate measurement of mitochondrial membrane potential is essential for understanding various cellular processes and diseases.
Purpose of the Study:
- To design and characterize a novel fluorescent probe for selective determination of mitochondria membrane potential changes.
- To evaluate the sensitivity and performance of the new probe compared to a commercially available indicator.
Main Methods:
- Synthesis and characterization of Fluorescent Probe 2.
- Assessment of probe selectivity for mitochondria.
- Comparison of Fluorescent Probe 2's sensitivity with Rhodamine 123 in detecting mitochondria membrane potential changes.
Main Results:
- Fluorescent Probe 2 was successfully synthesized and demonstrated selective targeting of mitochondria.
- The probe exhibited higher sensitivity in detecting mitochondria membrane potential changes compared to Rhodamine 123.
- Probe 2 provides a more precise and sensitive method for monitoring mitochondrial function.
Conclusions:
- Fluorescent Probe 2 is a superior tool for assessing mitochondria membrane potential.
- This probe has significant potential for future research in cellular functions and mitochondrial studies.
- The development of Probe 2 advances the field of mitochondrial diagnostics and research.
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