Fluorimetric detection of Ag+ cations in aqueous solutions using a polyvinyl chloride sensor film doped with crown-containing 1,8-naphthalimide

Panchenko, Pavel A.; Fedorov, Yury V.; Polyakova, A. M.; Федорова, О. А.

doi:10.1016/j.mencom.2021.07.027

Cited by 9 publications

(3 citation statements)

References 41 publications

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“…Others are; the use of crown‐functionalized mesoporous silica, [ 12 ] crown‐based supramolecular nanostructures, [ 13 ] aza‐crown grafted heterocycles, [ 14 ] and the use of polymeric sensors. [ 15 ] Despite their numerous potentials, CEs suffer from tremendous interference from co‐existing metal ions in e‐waste, lowering their selectivity. Moreover, according to the hard‐soft acid‐base (HSAB) principle proposed by Pearson, [ 16 ] the hard Lewis base CEs would bind strongly to hard alkali metal ions present in seawater, consequently blocking the adsorption sites.…”

Section: Introductionmentioning

confidence: 99%

Rational Design of a 3D Crown‐Based Material for the Selective Recovery of Silver Ions from Seawater and e‐Waste

Abdulazeez,

Al‐Hamouz,

Salhi

et al. 2023

Adv Materials Inter

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Silver recovery from sustainable sources such as seawater and e‐waste is critical for the conservation of land‐based resources and the reduction of the environmental impacts of e‐waste disposal. However, the abundance of competing metal ions in seawater and in e‐waste makes the recovery extremely challenging. Thus, to effectively capture silver ions under these conditions, the designing of materials with high selectivity, sufficient binding sites, and low affinity to competing metal ions is vital. Herein, we report the design and synthesis of a 3D‐like Schiff‐bridging crown‐based material named AC5, for the selective recovery of Ag+ ions. Through this design, a significant enhancement in the silver ion recovery was achieved with an excellent removal efficiency of up to 99.9%, and a tremendous increase in selectivity of 400 000 – 900 000% when compared to the metal ions (Li+, Na+, K+, Mg2+, and Ca2+) found in seawater, and the heavy metal ions (Cu2+, Cd2+, Ni2+, and Pb2+) found in electronic wastes. Density functional theory and molceular dynamics simulations revealed that the structural geometry of AC5 favors high charge transfer, lowered global hardness, and enhanced ion‐dipole attractions toward Ag+ ions, making the material an excellent candidate for the efficient recovery of silver from desalination brine and spent silver resources.

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Section: Introductionmentioning

confidence: 99%

Rational Design of a 3D Crown‐Based Material for the Selective Recovery of Silver Ions from Seawater and e‐Waste

Abdulazeez,

Al‐Hamouz,

Salhi

et al. 2023

Adv Materials Inter

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“…A significant share of measured factors is occupied by physiologically important analytes, such as O 2 , CO 2 , and pH in biological systems, industrial facilities, and environmental objects [2,3]. Moreover, methods for measuring these parameters are used as transducers in biosensors, which are widely used as economical and fast analytical methods in situ [4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Oligohexamethylene Guanidine Derivative as a Means to Prevent Biological Fouling of a Polymer-Based Composite Optical Oxygen Sensor

Lisowski,

Korobova,

Naumova

et al. 2023

Polymers

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The use of biocidal agents is a common practice for protection against biofouling in biomass-rich environments. In this paper, oligohexamethyleneguanidine (OHMG) polymer, known for its biocidal properties, was further modified with para-aminosalicylic acid (PAS) to enhance its properties against microorganisms coated with a lipid membrane. The structure of the product was confirmed by 1H NMR, 13C NMR, and FTIR spectroscopy. The values of the minimum inhibitory concentration (MIC) against Mycobacterium smegmatis ATCC 607 and Pseudomonas chlororaphis 449 were found to be 1.40 and 1.05 μg/mL, respectively. The synthesized substance was used as an additive to the polymer matrix of the composite optical oxygen sensor material. A series of samples with different contents of OHMG-PAS was prepared using a co-dissolution method implying the fabrication of a coating from a solution containing both polymers. It turned out that the mutual influence of the components significantly affects the distribution of the indicator in the matrix, surface morphology, and contact angle. The optimal polymer content turned out to be wt.3%, at which point the water contact angle reaches almost 122°, and the fouling rate decreases by almost five times, which is confirmed by both the respiratory MTT assay and confocal microscopy with staining. This opens up prospects for creating stable and biofouling-resistant sensor elements for use in air tanks or seawater.

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“…The creation of sensors and biosensors for monitoring the environment is one of the most important priorities in science, because of the close connection between human health and socio-economic development. In this field, biosensors have been widely employed as cost-effective, fast, in situ, and real-time analytical techniques [ 1 , 2 , 3 , 4 ]. A biosensor usually consists of two main parts: a biological recognition element and a physical or chemical transducer [ 5 ].…”

Section: Introductionmentioning

confidence: 99%

Optical Oxygen Sensing and Clark Electrode: Face-to-Face in a Biosensor Case Study

Melnikov

Alexandrovskaya

Naumova

et al. 2022

Sensors

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In the last decade, there has been continuous competition between two methods for detecting the concentration of dissolved oxygen: amerometric (Clark electrode) and optical (quenching of the phosphorescence of the porphyrin metal complex). Each of them has obvious advantages and disadvantages. This competition is especially acute in the development of biosensors, however, an unbiased comparison is extremely difficult to achieve, since only a single detection method is used in each particular study. In this work, a microfluidic system with synchronous detection of the oxygen concentration by two methods was created for the purpose of direct comparison. The receptor element is represented by Saccharomyces cerevisiae yeast cells adsorbed on a composite material, previously developed by our scientific group. To our knowledge, this is the first work of this kind in which the comparison of the oxygen detection methods is carried out directly.

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Fluorimetric detection of Ag+ cations in aqueous solutions using a polyvinyl chloride sensor film doped with crown-containing 1,8-naphthalimide

Cited by 9 publications

References 41 publications

Rational Design of a 3D Crown‐Based Material for the Selective Recovery of Silver Ions from Seawater and e‐Waste

Rational Design of a 3D Crown‐Based Material for the Selective Recovery of Silver Ions from Seawater and e‐Waste

Oligohexamethylene Guanidine Derivative as a Means to Prevent Biological Fouling of a Polymer-Based Composite Optical Oxygen Sensor

Optical Oxygen Sensing and Clark Electrode: Face-to-Face in a Biosensor Case Study

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