Spectral Characteristics and Sensor Ability of a New 1,8-Naphthalimide and Its Copolymer with Styrene.
Desislava StanevaSilvia E AngelovaIvo GrabchevPublished in: Sensors (Basel, Switzerland) (2020)
In this study, a novel 6-(allylamino)-2-(2-(dimethylamino)ethyl)-1H-benzo[de]isoquinoline-1,3(2H)-dione (NI3) was synthesized and characterized. Its copolymer with styrene was also obtained. The photophysical characteristics of NI3 were investigated in organic solvents and the results were compared with those of its structural analogue, 2-allyl-6-((2-(dimethylamino)ethyl)amino)-1H-benzo[de]isoquinoline-1,3(2H)-dione (NI4). The influences of the pH in the medium and different metal ions on the fluorescent intensity of monomers and polymers were also investigated. Computational tools (DFT and TDDFT calculations) were employed when studying the structure and properties of the 1,8-naphthalimide-based chromophores. Although the position of the N,N-dimethylaminoethylamine receptor fragment did not significantly impact proton detection, it was still important for detecting metal ion sensor ability, especially for monomeric 1,8-naphthalimide structures and their copolymers with styrene.
Keyphrases
- fluorescent probe
- ionic liquid
- living cells
- density functional theory
- quantum dots
- metal organic framework
- atomic force microscopy
- transition metal
- label free
- optical coherence tomography
- drug release
- molecular dynamics
- high resolution
- water soluble
- high intensity
- molecular dynamics simulations
- molecular docking
- magnetic resonance imaging
- mass spectrometry
- sensitive detection
- contrast enhanced