A dual responsive colorimetric sensor based on polyazomethine and ascorbic acid for the detection of Al (III) and Fe (II) ions

Kamacı, Umran Duru; Kamacı, Musa; Peksel, Ayşegül

doi:10.1016/j.saa.2021.119650

Cited by 24 publications

(9 citation statements)

References 39 publications

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“…Its values were 2.94 × 10 −4 S/cm, 2.55 × 10 −4 S/cm, and 3.54 × 10 −4 S/cm, respectively. Due to the coordination reaction between the imine bond and the metal ion, charge transfer occurred, resulting in the generation of charged points on the polymer molecular chain and an improvement in the conductivity of polymers [ 42 , 46 ]. Among them, it could be seen that the maximum conductivity value was obtained when Sm 3+ was introduced, and the conductivity of D230-PyAL-Sm increased by 162% compared with D230-PyAL.…”

Section: Resultsmentioning

confidence: 99%

Synthesis and Characterization of Schiff Base Polymers via Metal Coordination and Its Application in Infrared Stealth Coating

Zong

et al. 2022

Polymers

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In order to reduce the infrared emissivity to meet the requirements of modern warfare for infrared stealth materials, we prepared the polymers containing Schiff base moieties using polyetheramine and 2,6-pyridinedicarboxaldehyde by solution polycondensation and coordinated with Ni2+, Cu2+, and Sm3+ ions to prepare organic coatings. The structure and the thermal and mechanical properties of the coatings were studied in detail. Meanwhile, the effect of the conductivity change of coordination polymers on infrared emissivity was studied systematically. The results showed the polymer coordinated with Sm3+ ions had the lowest energy band gap, which was 2.99 eV, and the best electrical conductivity of 3.54 × 10−4 S/cm compared with Ni2+ and Cu2+ coordination polymers. The infrared emissivity was the lowest in the 2–22 μm infrared waveband range, which reached 0.58, suggesting the polymers containing Schiff base moieties and their coordination polymers may have a great potential to be applied as infrared stealth materials in military applications.

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Section: Resultsmentioning

confidence: 99%

Synthesis and Characterization of Schiff Base Polymers via Metal Coordination and Its Application in Infrared Stealth Coating

Zong

et al. 2022

Polymers

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“…At the end of the reaction, the mixture was cooled to room temperature. Then, it was washed with distilled water (2x50 ml) and dried at around 65°C in a vacuum oven 13–16 . Appearance: White powder, Yield: 96%.…”

Section: Methodsmentioning

confidence: 99%

“…According to these results, the gelation mechanism of the developed hydrogels could be attributed to the physical bonding of the functional groups in the structures of chitosan ( OH/ NH 2 , NH, and C O C) and polyurethane (imine [N═CH], urethane NH, and C═O) by hydrogen bonding 29. 1 H, and13 C-NMR data of the phenyl triazine-based Schiff base (PHE-MET), and polyurethanes (PHE-MET-HDI, PHE-MET-IPDI, and PHE-MET-LDI) were given in Table S2. In the 1 H-NMR data of PHE-MET, N═CH N, hydroxyl ( C OH), azomethine ( N═CH), and methoxy ( OCH 3 ) protons were recorded at 9.57, 8.21, 8.08, and 3.31 ppm, respectively.…”

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confidence: 93%

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Fabrication of biodegradable hydrogels based on chitosan and poly(azomethine‐urethane) containing phenyl triazine for drug delivery

Kamacı

Kaya

2022

Polymers for Advanced Techs

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A series of biodegradable hydrogels based on chitosan and polyurethanes was fabricated to be applied to the drug delivery application, and the fabricated hydrogels were characterized by using SEM, and FT‐IR techniques. Polyurethanes were also synthesized by using the different diisocyanates, and the diisocyanate's effect on the properties of the hydrogels was clarified. The mechanical and thermal properties, % swelling capacity, biodegradation, and hydrophilic or hydrophobic behaviors of the chitosan and polyurethane hydrogels were also clarified. The fabricated hydrogels were demonstrated good biodegradable and antibacterial behaviors. The cumulative drug release of the hydrogels was revealed that they have around 50% drug release capacity, and according to the obtained results, the chitosan and polyurethane‐based hydrogels have a potential drug delivery application of 5‐fluorouracil.

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“…Generally, the uorescence analysis method is popular because of its high sensitivity and super antiinterference ability compared with other detection methods [16,17]. To date, many uorescence sensors for the detection of Al 3+ are altered by the heteroatoms (N and/or O atoms) as the donor sites such as Schiff bases [18,19], avone bases [20] and peptide bases [21], all of which are almost designed based on the incorporation and chelation using the reported sensing mechanism such as photoinduced electron transfer (PET) [22], uorescence resonance energy transfer (FRET) [23], chelation-enhanced uorescence (CHEF) [24], aggregation-induced emission (AIE) [25], and many more [26,27]. Moreover, most of Al 3+ sensors have exhibited tremendous potential ascendent in physiological environmental and actual environmental.…”

Section: Introductionmentioning

confidence: 99%

An Acid-triggered Reactive and Enhanced Fluorescent Probe for Selective Detection of Al3+/H+ and its Application in Real Water Samples and Living Cells

Zhao²,

Kan³

et al. 2022

J Fluoresc

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A reactive uorescent "turn-on" probe (di-PIP) with imine-linked dual phenanthro [9,10-d]imidazole luminophore have been conveniently prepared as an Al 3+ and H + dual functional receptor. di-PIP displayed high selectivity and sensitivity towards Al 3+ ion in DMF/HEPES accompanied by uorescence blue-shift and a good linear relationship as well as a low detection limit of 30.5 nmol•L − 1 , which can root from the synergetic functions of the decomposition reaction of di-PIP promoted by acidic Al 3+ and the coordination effect between decomposition product and Al 3+ . Intriguingly, it was found that hydrogen ion H + can be su cient for simulating the uorescence enhancing of di-PIP. 1 H NMR titration and MS analyses for elucidation of the intermediate structure further revealed that the acid-triggered decomposition reaction resulted in the rapid, and sensitive sensing to Al 3+ and H + . In addition, the probe di-PIP could be successfully applied to the detection of Al 3+ in real water samples, and also utilized to visualize Al 3+ and H + in the living cells.

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A dual responsive colorimetric sensor based on polyazomethine and ascorbic acid for the detection of Al (III) and Fe (II) ions

Cited by 24 publications

References 39 publications

Synthesis and Characterization of Schiff Base Polymers via Metal Coordination and Its Application in Infrared Stealth Coating

Synthesis and Characterization of Schiff Base Polymers via Metal Coordination and Its Application in Infrared Stealth Coating

Fabrication of biodegradable hydrogels based on chitosan and poly(azomethine‐urethane) containing phenyl triazine for drug delivery

An Acid-triggered Reactive and Enhanced Fluorescent Probe for Selective Detection of Al3+/H+ and its Application in Real Water Samples and Living Cells

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