Characterization of a fluorescent hydrogel synthesized using chitosan, polyvinyl alcohol and 9-anthraldehyde for the selective detection and discrimination of trace Fe3+ and Fe2+ in water for live-cell imaging

Maity, Santu; Parshi, Nira; Prodhan, Chandraday; Chaudhuri, Keya; Ganguly, Jhuma

doi:10.1016/j.carbpol.2018.03.073

Cited by 50 publications

(16 citation statements)

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“…In particular, Fe 3þ is closely involved in cell metabolism, oxygen uptake, oxygen metabolism and intracellular oxygen transport, but super°uous Fe 3þ may cause or worsen certain diseases, including cancer, cardiovascular diseases and Parkinson's disease. [1][2][3] Therefore, exploiting a nontoxic, precise and e±cient detection method for heavy metal ions is especially relevant. Fluorescent nanomaterials have special optical and biochemical properties, including prominent photostability, long°uorescence lifetime and tunable emission spectra.…”

Section: Introductionmentioning

confidence: 99%

Fluorescent Nitrogen-Doped Carbon Dots via Single-Step Synthesis Applied as Fluorescent Probe for the Detection of Fe³⁺ Ions and Anti-Counterfeiting Inks

Dong

et al. 2018

NANO

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Fluorescent nitrogen-doped carbon dots (N-CDs) with excellent stability were prepared via single-step hydrothermal carbonization of citric acid (CA) and ethylenediamine (EDA). The as-prepared N-CDs emit blue fluorescence under the excitation of 365[Formula: see text]nm and have a size distribution of 2.80 ± 0.47[Formula: see text]nm with benign size effect. The structure and morphology were further characterized by X-ray photoelectron spectroscopy (XPS) and Fourier transform infrared (FTIR) spectroscopy. It was found that the surface of the N-CDs was successfully functionalized, which presented water solubility and chelation with Fe3+. XRD results display a diffraction peak at 23.9°C, which corresponds to the (002) interlayer spacing of a graphitic structure revealing an amorphous carbon phase. Furthermore, due to good sensitivity, N-CDs were used as probes for Fe3+ detection. The low limit of detection of 0.6[Formula: see text]μM as a fluorescence probe was successfully obtained based on the linear relationship between ([Formula: see text] and concentration of Fe3+ ions. Besides the satisfactory fluorescence, PVA/N-CDs membranes and fluorescent inks demonstrate potential for anti-counterfeiting applications due to its characteristic flexibility, transparency, removability and invisibility under ambient lighting.

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Section: Introductionmentioning

confidence: 99%

Fluorescent Nitrogen-Doped Carbon Dots via Single-Step Synthesis Applied as Fluorescent Probe for the Detection of Fe³⁺ Ions and Anti-Counterfeiting Inks

Dong

et al. 2018

NANO

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“…FT‐IR spectrum chitosan (Figure S2) shows a characteristics broad peak at 3400–3700 cm −1 owing to stretching vibration of O–H and N–H groups, amide (amide I) C=O groups displays its stretching frequency at 1655 cm −1 . The peaks at 1597, 1424,1380 1324 and 1085 cm −1 for bending vibrations of the N−H of N‐acetylated residues (amide II band), C–N stretching, C−H bending, C–N stretching of amino groups and C–O–C stretching vibration respectively –…”

Section: Resultsmentioning

confidence: 99%

Sugar‐Based Self‐Assembly of Hydrogel Nanotubes Manifesting ESIPT: Theoretical Insight and Application in Live Cell Imaging

et al. 2018

Self Cite

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A biopolymeric hydrogel nanotubes (BTHBC) using 3-(benzo [d] thiazol-2-yl)-2-hydroxybenzaldehyde and chitosan have been synthesized which exhibits excited state intramolecular proton transfer (ESIPT) in both gel and solution phase. The optimized spatial structure of the monomer of BTHBC having lower energy (Energy: À1085688.464 kcal/mol) is found to be planar. FE-SEM analysis reveals that the spherical assemblies (20-100 nm) preceded gelation. Upon aging, gelation can be observed owing to the fusion of these spherical aggregates into nanotubes (200-500 nm). DFT study of BTHBC establishes that the migration of H atom from phenolic -OH group to the nitrogen of 2-(2' Hydroxyphenyl)benzothiazole (HBT) moiety is more feasible than the imine nitrogen of chitosan. The fluorescence lifetime of BTHBC is found to increase remarkably in gel phase compared to its aqueous solution. Both the cellular uptake and cell imaging efficiency suggest that the biocompatible nature of the hydrogel permits easy access of maximum number of molecules into the cells which causes enhancement of the fluorescence intensity of the cells.

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“…Repeat the previous operation and record the above fluorescence intensity. All of the above tests were performed in three replicates …”

Section: Methodsmentioning

confidence: 99%

Poly(vinyl alcohol)–Carbon Nanodots Fluorescent Hydrogel with Superior Mechanical Properties and Sensitive to Detection of Iron(III) Ions

Shao

Wang

et al. 2019

Macro Materials & Eng

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A high‐strength fluorescent hydrogel is prepared by physical cross‐linking of carbon nanodots (CNDs) with poly(vinyl alcohol) (PVA). The stretching and compression of the PVA hydrogel are improved with CNDs by 176% and 64%, respectively. It still has excellent self‐healing behaviors without adding other healing agents. In addition, the search for rapid detection of heavy metals is still a huge challenge. The resulting hydrogel exhibits fluorescence quenching in the presence of Fe3+ by the fluorescence characteristics of CNDs, which has high selectivity and sensitivity. The PVA‐CNDs fluorescent hydrogel can be used as a solid detection platform for Fe3+, where the detection limit is found to be 10 µm for Fe3+ by fluorescence studies.

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Characterization of a fluorescent hydrogel synthesized using chitosan, polyvinyl alcohol and 9-anthraldehyde for the selective detection and discrimination of trace Fe3+ and Fe2+ in water for live-cell imaging

Cited by 50 publications

References 53 publications

Fluorescent Nitrogen-Doped Carbon Dots via Single-Step Synthesis Applied as Fluorescent Probe for the Detection of Fe³⁺ Ions and Anti-Counterfeiting Inks

Fluorescent Nitrogen-Doped Carbon Dots via Single-Step Synthesis Applied as Fluorescent Probe for the Detection of Fe³⁺ Ions and Anti-Counterfeiting Inks

Sugar‐Based Self‐Assembly of Hydrogel Nanotubes Manifesting ESIPT: Theoretical Insight and Application in Live Cell Imaging

Poly(vinyl alcohol)–Carbon Nanodots Fluorescent Hydrogel with Superior Mechanical Properties and Sensitive to Detection of Iron(III) Ions

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Characterization of a fluorescent hydrogel synthesized using chitosan, polyvinyl alcohol and 9-anthraldehyde for the selective detection and discrimination of trace Fe3+ and Fe2+ in water for live-cell imaging

Cited by 50 publications

References 53 publications

Fluorescent Nitrogen-Doped Carbon Dots via Single-Step Synthesis Applied as Fluorescent Probe for the Detection of Fe3+ Ions and Anti-Counterfeiting Inks

Fluorescent Nitrogen-Doped Carbon Dots via Single-Step Synthesis Applied as Fluorescent Probe for the Detection of Fe3+ Ions and Anti-Counterfeiting Inks

Sugar‐Based Self‐Assembly of Hydrogel Nanotubes Manifesting ESIPT: Theoretical Insight and Application in Live Cell Imaging

Poly(vinyl alcohol)–Carbon Nanodots Fluorescent Hydrogel with Superior Mechanical Properties and Sensitive to Detection of Iron(III) Ions

Contact Info

Product

Resources

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Fluorescent Nitrogen-Doped Carbon Dots via Single-Step Synthesis Applied as Fluorescent Probe for the Detection of Fe³⁺ Ions and Anti-Counterfeiting Inks

Fluorescent Nitrogen-Doped Carbon Dots via Single-Step Synthesis Applied as Fluorescent Probe for the Detection of Fe³⁺ Ions and Anti-Counterfeiting Inks