Lanthanide-based metal-organic gels for flexible X-ray imaging

Area of Science:

• Materials Science
• Radiology
• Nanotechnology

Background:

• Traditional inorganic scintillators lack flexibility and stability, limiting advanced X-ray imaging.
• Developing flexible, stable scintillators is crucial for next-generation radio-imaging technologies.

Purpose of the Study:

• To synthesize and characterize novel lanthanide-based metal-organic gels (Ln-MOGs) for flexible X-ray imaging.
• To achieve tunable luminescence and demonstrate high-performance X-ray detection and imaging capabilities.

Main Methods:

• A facile one-pot method at room temperature was used to prepare lanthanide-based metal-organic gels (Ln-MOGs) with Tb³⁺ and Eu³⁺.
• The Ln-MOGs were dispersed in polydimethylsiloxane to create flexible scintillator membranes.
• Photoluminescence and X-ray excited luminescence were measured, along with X-ray dose rate response and irradiation stability.

Main Results:

• Tunable emission from green to red was achieved by adjusting the Tb³⁺/Eu³⁺ molar ratio.
• The flexible scintillator membranes exhibited a linear response to X-ray dose rates and good stability.
• High-resolution X-ray imaging (14 lp mm⁻¹) and multi-dimensional radio-imaging of flexible devices were demonstrated.

Conclusions:

• Lanthanide-based metal-organic gels (Ln-MOGs) show significant potential as multifunctional materials for advanced radio-imaging.
• The developed flexible scintillator membranes offer a promising platform for high-performance, adaptable X-ray imaging applications.