Arsenic contamination in water is a serious environmental issue. To address this, researchers from the Environmental Analysis Research Unit (EARU) have developed a simple and highly sensitive color-based method to detect arsenic (As(III)) in water. This innovative approach uses silver nanoprisms coated with citrate, which visibly change color from blue to yellow when arsenic is present. The method is low-cost, easy to use, and does not require complex instruments, making it ideal for on-site water testing. This breakthrough offers promising potential for improving access to water quality monitoring and enhancing public health protection in the future.
- Saowanee Toonchue
- Nakara Bhawawet
- Kanet Wongravee
- Apichat Imyim