Functional micro-/nanostructured gallium-based liquid metal for biochemical sensing and imaging applications

Area of Science:

• Materials Science
• Nanotechnology
• Analytical Chemistry

Background:

• Liquid metals (LMs), particularly gallium (Ga)-based ones, are increasingly recognized for their diverse research applications.
• Ga-based LMs possess unique properties like high conductivity, large surface area, biocompatibility, small bandgap, and elasticity, making them suitable for advanced sensors.
• Recent progress focuses on functional micro-/nanostructured Ga-based LMs for enhanced biochemical sensing and imaging.

Purpose of the Study:

• To comprehensively review the latest advancements in functional micro-/nanostructured Ga-based LMs.
• To summarize their applications in biochemical sensing and biomedical imaging.
• To provide insights into future research directions and challenges.

Main Methods:

• Discussion of electrical, optical, and biocompatible features of Ga-based LM micro-/nanoparticles.
• Overview of manufacturing and functionalization processes for these materials.
• Demonstration of Ga-based LMs in various sensing and imaging techniques.

Main Results:

• Ga-based LMs show significant potential in electrochemical, electrochemiluminescence, and optical sensing.
• Their application in biomedical imaging is rapidly advancing.
• Functional micro-/nanostructuring enhances their performance in these areas.

Conclusions:

• Ga-based LMs are highly promising for next-generation biochemical sensing and imaging platforms.
• Further research is needed to overcome existing challenges and fully realize their potential.
• Continued development in micro-/nanostructuring and functionalization will drive innovation.