Simple Photothermal Paper-Based Analytical Device Using Silver Nanomaterials for Quantitative Mercury Ion Monitoring in Drinking Water and Wolffia Samples

Key Points

• The aim is to develop a simple device for accurately detecting mercury ions in environmental samples.
• Developed a photothermal-based paper analytical device (PT-PAD)
• Utilized silver nanomaterials for enhanced sensitivity
• Tested device with drinking water and Wolffia samples
• Successfully quantified mercury ions with high sensitivity
• Demonstrated rapid screening capability for environmental monitoring
• Showed potential applicability in various water sources