Advanced NIR ratiometric probes for intravital biomedical imaging

Area of Science:

• Biomedical Imaging
• Optical Sensing
• Molecular Probes

Background:

• Near-infrared (NIR) fluorescence imaging (650-1700 nm) offers deeper tissue penetration and reduced autofluorescence compared to visible light imaging.
• Intelligent NIR fluorescent probes are crucial for precise medicine, providing sensitive and specific detection.
• Ratiometric fluorescent probes combine responsive fluorescence changes with self-calibration for quantitative measurements.

Purpose of the Study:

• To systematically introduce construction strategies for NIR ratiometric fluorescent probes.
• To highlight the applications of these probes in in vivo biological imaging.
• To discuss optimization and future prospects for quantitative NIR fluorescence analysis.

Main Methods:

• Review of NIR ratiometric fluorescent probe design principles.
• Compilation of diverse applications including molecular detection, pH/temperature sensing, and drug delivery monitoring.
• Analysis of strategies for probe optimization and quantitative analysis.

Main Results:

• NIR ratiometric probes facilitate accurate quantification of physiological and pathological parameters.
• Demonstrated utility in various in vivo imaging applications, enhancing diagnostic capabilities.
• Identified key design considerations for improved probe performance.

Conclusions:

• NIR ratiometric fluorescent probes are vital tools for advanced biomedical imaging and quantitative analysis.
• Further optimization holds promise for broader applications in life sciences and clinical translation.
• These probes represent a significant advancement in precise and intelligent molecular imaging.