Triazine-Containing Pyridinium Organic Polymer Based on 4-Amino-1,8-naphthalimide Tröger’s Base for Selective Fluorescent Sensing of Organoarsenic Feed Additives in Water
A new triazine containing pyridinium organic polymer (<b>TB-Py-COP</b>) based on 4-amino-1,8-naphthalimide Tröger's base is developed and employed as a fluorescent chemosensor for selective sensing of organoarsenic feed additives in water. <b>TB-Py-COP</b> was readily synthesized by reacting "V-shaped" bis-[<i>N</i>-(4-pyridyl)methyl)]-9,18-methano-1,8-naphthalimide-[<i>b,f</i>][1,5]diazocine with cyanuric chloride in DMF at 100 °C for 3 days. <b>TB-Py-COP</b> exhibited a strong fluorescence emission in water and displayed selective, reversible fluorescence sensing responses for the roxarsone feed additive at the nanomolar (19 nM) level of sensitivity. The Stern-Volmer quenching constant (<i>K</i> <sub>SV</sub>) was determined to be 1.4 × 10<sup>4</sup> M<sup>-1</sup>. The selective sensing of roxarsone was further demonstrated in competitive environments, lake water, and buffer solutions.
Authors
- K. Balamurugan (ORCID: https://orcid.org/0000-0002-9463-4439)
- G. Kalaiarasi (ORCID: https://orcid.org/0000-0003-2712-2094)
- Sankarasekaran Shanmugaraju (ORCID: https://orcid.org/0000-0002-3283-7847)
- Ananthu Shanmughan (ORCID: https://orcid.org/0000-0002-1767-4808)
- Karunya Chitrarasu
Institutions
- Indian Institute of Technology Palakkad (IN)
- Karpagam Academy of Higher Education (IN)
Publication Details
- Journal
- ACS Measurement Science Au
- Published
- 2024-10-24
- DOI
- https://doi.org/10.1021/acsmeasuresciau.4c00059
- Citations
- 2
- Primary Topic
- Molecular Sensors and Ion Detection
- Type
- article
- Field-Weighted Citation Impact
- 0.48
Funders
- Indian Institute of Technology Palakkad
- Science and Engineering Research Board