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Fluorescent Terpolymers via In Situ Allocation of Aliphatic Fluorophore Monomers: Fe(III) Sensor, High‐Performance Removals, and Bioimaging
Author(s) -
Mahapatra Manas,
Dutta Arnab,
Roy Joy Sankar Deb,
Mitra Madhushree,
Mahalanobish Sushweta,
Sanfui MD Hussain,
Banerjee Snehasis,
Chattopadhyay Pijush Kanti,
Sil Parames C.,
Singha Nayan Ranjan
Publication year - 2019
Publication title -
advanced healthcare materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.288
H-Index - 90
eISSN - 2192-2659
pISSN - 2192-2640
DOI - 10.1002/adhm.201900980
Subject(s) - monomer , fluorescence , materials science , polymerization , spectroscopy , fourier transform infrared spectroscopy , fluorescence spectroscopy , density functional theory , fluorophore , adsorption , absorption spectroscopy , x ray photoelectron spectroscopy , photochemistry , chemistry , polymer , chemical engineering , computational chemistry , optics , physics , quantum mechanics , composite material , engineering
Herein, purely aliphatic intrinsically fluorescent terpolymers, i.e., 1 and 2, are synthesized through one‐pot solution polymerization via N–H functionalized and multi C–C/C–N coupled in situ protrusion of fluorescent monomers using two nonemissive monomers. These scalable terpolymers are suitable for highly selective Fe(III) sensing, high‐performance exclusion of Fe(III), logic function and the imaging of normal mammalian Madin–Darby canine kidney and human osteosarcoma cancer cell lines. The structures of terpolymers, in situ attachment of fluorescent monomers, clusteroluminescence, adsorption‐mechanism, and cell‐imaging abilities are understood via unadsorbed and/or adsorbed microstructural analyses using 1 H/ 13 C NMR, Fourier transform infrared spectroscopy, X‐ray photoelectron spectroscopy, UV–vis spectroscopy, atomic absorption spectroscopy, thermogravimetric analysis, high‐resolution transmission electron microscopy, dynamic light scattering, fluorescence imaging, and fluorescence lifetime. The geometries, electronic structures, location of fluorophores, and singlet–singlet absorption and emission of terpolymers are examined using density functional theory (DFT) and time‐dependent DFT. For the precise identification of fluorophores, transition from occupied natural transition orbitals (NTOs) to unoccupied NTOs is computed. For 1/2, limit of detection (LOD) values and adsorption capacities are 6.0 × 10 −7 /8.0 × 10 −7 m and 147.82/120.56 mg g −1 at pH i = 7.0 and 303 K, respectively. The overall properties of 1 are more advantageous compared to 2 in sensing, cell imaging, and adsorptive exclusion of Fe(III).