A dual-mode MOF sensor for Al 3+ detection based on red-shift ratiometric fluorescence and portable hydrogel-smartphone analysis

Key Points

• The aim is to develop a dual-mode sensor using a metal-organic framework (MOF) for the detection of aluminum ions.
• Synthesis of a three-dimensional MOF under hydrothermal conditions.
• Comprehensive characterization through luminescence studies.
• Development of a portable analysis method using hydrogels.
• The synthesized MOF displayed distinct fluorescence characteristics.
• Successful detection of aluminum ions was achieved through ratiometric fluorescence analysis.
• The portable hydrogel analysis method allows for easy integration with smartphone technology.