Microenvironment-sensitive iridium(iii) complexes for disease theranostics

Area of Science:

• Inorganic chemistry
• Biomedical engineering
• Analytical chemistry

Background:

• Microenvironmental parameters (hypoxia, pH, polarity, viscosity, temperature) are crucial for molecular behavior.
• Abnormal microenvironmental changes are linked to cellular dysfunction and severe diseases like cancer and diabetes.
• Phosphorescent iridium(III) complexes offer unique properties for sensing these parameters.

Purpose of the Study:

• To review recent advancements in iridium-based probes for sensing biological microenvironments.
• To highlight the diagnostic and therapeutic potential of these probes for diseases such as cancer and diabetes.

Main Methods:

• Design and synthesis of phosphorescent iridium(III) complexes.
• Characterization of probe photophysical properties.
• Application of probes in biological systems to monitor microenvironmental parameters.

Main Results:

• Iridium(III) complexes exhibit high photostability and long emission lifetimes.
• These complexes show environment-sensitive emission profiles, enabling detection of microenvironmental changes.
• Demonstrated utility in diagnosing and potentially treating diseases like cancer and diabetes.

Conclusions:

• Iridium(III) complexes are promising tools for probing biological microenvironments.
• These probes facilitate early disease diagnosis and personalized treatment strategies.
• Further development holds potential for significant clinical impact in oncology and diabetology.