| Autor: |
Dingbowen Wang, Tunan Xia, Yuqi Wang, Yizhu Chen, Chenji Zhang, William Murray, Adam Thomas Schultz, Zhiwen Liu, Jian Yang |
| Jazyk: |
angličtina |
| Rok vydání: |
2022 |
| Předmět: |
|
| Zdroj: |
Smart Materials in Medicine, Vol 3, Iss , Pp 374-381 (2022) |
| Druh dokumentu: |
article |
| ISSN: |
2590-1834 |
| DOI: |
10.1016/j.smaim.2022.05.001 |
| Popis: |
Halides play important roles in human health and environmental monitoring. However, different halides interfere with each other in current measurement methods. Simultaneous sensing of multiple halides in a fast and low-cost manner remains a challenge. Here, we report a fluorometric multi-halide sensing method by using a single citrate-based fluorophore, CA-Cys, on a custom-made portable device. The fluorescence emitted by CA-Cys is quenched due to the dynamic quenching of halide ions; the sensitivities vary from halide types and pH, providing the capability to obtain multiple Stern-Volmer equations at various pH values. The concentration of each halide can then be obtained by solving the resultant set of equations. A mM scale detection limit is demonstrated, which is suitable for halide wastewater monitoring. A proof-of-concept smartphone-based portable device is also fabricated and tested. The results from the fluorometer and portable device indicated that our multi-halide system is promising for real-world multi-halide sensing applications. This work represents a new direction in developing portable, low-cost, and simultaneous multi-halide sensing technologies. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
|
