Naphthalimide‐Triazole Affixed Rhodamine Probe for FRET‐Based Selective Detection of Pd <sup>2+</sup> Ion in Living Cells
Abstract A naphthalimide–triazole–rhodamine conjugate (Pd‐select) selectively detects Pd 2+ ion via fluorescence resonance energy transfer (FRET) process in aqueous media. In the presence of Pd 2+ , the colorless “Pd‐select” turns pink visibly while its green fluorescence turns orange‐red. The association constant and lowest detection limit (LOD) of Pd‐select for Pd 2+ are 1.5 × 10 4 M −1 and 2 µM, respectively. The Pd‐select successfully images intracellular Pd 2+ in live HeLa and SiHa cells. In addition, DFT studies corroborate experimental findings.
Authors
- Somnath Khanra
- Debasis Das (ORCID: https://orcid.org/0000-0003-0474-0842)
- Susanta Adhikari (ORCID: https://orcid.org/0000-0002-5204-3876)
- Arif Md. Rashedul Kabir (ORCID: https://orcid.org/0000-0001-6367-7690)
- Juheli Sadhukhan (ORCID: https://orcid.org/0009-0005-1890-0407)
- Subhajit Guria (ORCID: https://orcid.org/0000-0002-5754-6157)
Institutions
- University of Calcutta (IN)
- University of Burdwan (IN)
Publication Details
- Journal
- Asian Journal of Organic Chemistry
- Published
- 2025-04-08
- DOI
- https://doi.org/10.1002/ajoc.202500082
- Primary Topic
- Molecular Sensors and Ion Detection
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Department of Science and Technology, Ministry of Science and Technology, India
- University Grants Commission
- Science and Engineering Research Board