Related Experiment Video
Updated: Sep 8, 2025

08:17
Fluorescent Nanoparticles for the Measurement of Ion Concentration in Biological Systems
Published on: July 4, 2011
15.4K
Perspective on fluorescence cell imaging with ionophore-based ion-selective nano-optodes.
Xinfeng Du1, Niping Li2, Qinghan Chen2
1School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China.
Biomicrofluidics
|June 14, 2022
Summary
Fluorescent nanoprobes utilizing ionophores offer a novel method for tracking essential inorganic ions like sodium and potassium within cells. This technology advances cellular analysis and imaging capabilities.
Area of Science:
- Biochemistry
- Cell Biology
- Nanotechnology
Background:
- Inorganic ions exhibit dynamic distributions within cells, crucial for biological processes.
- Fluorescence microscopy and probes have significantly improved cellular ion analysis.
Purpose of the Study:
- To review and discuss ionophore-based ion-selective nanoprobes.
- To explore their applications in cellular imaging and analysis.
Main Methods:
- Development of fluorescent nanoprobes incorporating ionophores.
- Utilizing fluorescence microscopy for ion concentration imaging.
- Quantitative analysis of ion dynamics in biological systems.
Main Results:
- Ionophore-based nanoprobes provide a versatile platform for detecting multiple biological ions.
- These probes enable high-resolution imaging of ion concentrations.
- Demonstrated potential for analyzing ions such as Na+, K+, Ca2+, and Cl-.
Conclusions:
- Ionophore-based nanoprobes represent a significant advancement in cellular ion sensing.
- They offer a promising future for quantitative analysis and imaging of cellular ions.

