Selective sensing of Fe3+ at pico-molar level with ethyl cellulose based electrospun nanofibers

Kaçmaz, Sibel; Ertekin, Kadriye; Gocmenturk, Mustafa; Süslü, Aslıhan; Ergün, Yavuz; Çelik, Erdal

doi:10.1016/j.reactfunctpolym.2013.02.003

Cited by 21 publications

(19 citation statements)

References 28 publications

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“…1.3). [74][75][76][77][78][79][80] Polymer/IL composites are obtained either by a simple casting of the liquid sensing cocktail on an appropriate support (commonly a polyester or glass slide) or by electrospinning. The resultant materials are continuous thin and bulk films (the thickness is several and 200 μm, respectively) Fig.…”

Section: ·2 Materials Varieties and Preparation Methodsmentioning

confidence: 99%

“…74 [74][75][76][77][78][79][80] Owing to the use of [EMIm]BF4 in EC and PMMA thin films, the sensitivity of the CO2 sensor increased, the hyperbolic response of the recognition element (HPTS)/(TOA)4 in the working concentration range of CO2 straightened, HPTS photostability was enhanced and the sensor lifetime was prolonged up to 95 days under ambient conditions. 75 Note that IL-free sensors completely lost their sensing capability within 3 days.…”

Section: ·2 Ionic Liquids As Additives In Polymer Matricesmentioning

confidence: 99%

“…74 [EMIm]BF4 served as an additive to EC and PMMA for fabricating the continuous thin films and the electrospun nanofibers for the sensitive, rapid, and reproducible fluorescent determination of metal ions. [77][78][79] In the course of Fe(III) determination, [EMIm]BF4 in the EC matrix provided a highly stable, spectroscopically available microenvironment for the immobilized recognition element N′-(4-cyanobenzylidene)-isonicotinohydrazide (CBINH). 77 The fluorophores 1,2-bis(4-methoxybenzylidene)hydrazine (M-AZM) and 2-(9-methyl-9H-carbazol-3-yl)-5-(pyridine-4-yl)-1,3,4-oxidiazole (ODC-3) that were doped into modified EC and PMMA matrices along with the anionic additive (potassium tetrakis-(4-chlorophenyl) borate) extracted Ag(I) and Hg(II) ions, respectively, because of the ionexchange mechanism.…”

Section: ·2 Ionic Liquids As Additives In Polymer Matricesmentioning

confidence: 99%

“…122 Besides Fe(III) ions, OH -and Al 3+ ions significantly quenched the fluorescence of the CBINH-based sensor. 77 Another Hg(II)-sensor based on [BMIm]Cl-reconstituted cellulose films with encapsulated PAN could be used up to five times after their regeneration by soaking in 2 mol dm -3 CH3COOH. Further regeneration became impossible because the reagent was leached from the cellulose matrix.…”

Section: Application Of the Developed Optical Sensors In Chemical Anamentioning

confidence: 99%

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Applications of Ionic Liquids for the Development of Optical Chemical Sensors and Biosensors

et al. 2017

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This paper reviews the primary literature reporting the use of ionic liquids (ILs) in optical sensing technologies. The optical chemical sensors that have been developed with the assistance of ILs are classified according to the type of resultant material. Key aspects of applying ILs in such sensors are revealed and discussed. They include using ILs as solvents for the synthesis of sensor matrix materials; additives in polymer matrices; matrix materials; modifiers of the surfaces; and multifunctional sensor components. The operational principles, design, texture, and analytical characteristics of the offered sensors for determining CO2, O2, metal ions, CN -, and various organic compounds are critically discussed. The key advantages and disadvantages of using ILs in optical sensing technologies are defined. Finally, the applicability of the described materials for chemical analysis is evaluated, and possibilities for their further modernization are outlined.

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Section: ·2 Materials Varieties and Preparation Methodsmentioning

confidence: 99%

Section: ·2 Ionic Liquids As Additives In Polymer Matricesmentioning

confidence: 99%

Section: ·2 Ionic Liquids As Additives In Polymer Matricesmentioning

confidence: 99%

Section: Application Of the Developed Optical Sensors In Chemical Anamentioning

confidence: 99%

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Applications of Ionic Liquids for the Development of Optical Chemical Sensors and Biosensors

et al. 2017

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“…该类材料已经在静电纺丝研究方面受到学者的广泛关注, 通过不同的溶剂体系研究, 主要集中在醋酸纤维素(CA) [31] 、羟丙基纤维素(HPC) [32] 、乙基纤维素(EC) [5,33] 等纤维素酯和非离子型纤维素醚. 我们课题组一直致力于这方面的研究, 还在纤维素、羟丙基甲基纤维素(HPMC) [34] 、硝化纤维素(NC) 以及其衍生物 [35,36] 、乙酸丁酸纤维素(CAB)及其衍生物 [37] 等取得了较好的效果.…”

Section: 引言unclassified

Study on Synthesis, Rheological and Electrospinning Functional Materials of Carboxymethyl Cellulose Lithium (CMC-Li)

邱磊¹,

邵自强²,

王建全³

et al. 2013

Acta Chim. Sinica

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The study on electrospinning of natural polysaccharide polymer to be nano-crystallized is still difficult in the current time. Carboxymethyl cellulose sodium (CMC-Na) was successfully synthesized and acidized to obtain carboxymethyl cellulose hydrogen (CMC-H), and new ionic cellulose ether CMC-Li was synthesized by alkalization, and then we analyzed the difference of structure between the three products. By comparing the rheological measurement and analysis of CMC-Na and CMC-Li, which have different mass fractions, it is found that they both show the characteristics of non-Newtonian fluid. The non-Newtonian index of CMC-Li is lower than that of CMC-Na when the degree of substitution (DS) and viscosity of both is similar. For the same material, the ionic cellulose ether solution of lower DS and higher concentration shows the lower non-Newtonian index. For the structure and property characteristic of polymers, it was easy to combine them with water-soluble hydroxyl terminated high molecular weight polyethylene oxide (PEO) to allocate the excellent electrospinning solution. Processing conditions were adjusted to a flow rate of 4 mL/h, an applied voltage of 25 kV, the spinning distance of 12 cm, the better appearance of nanofibers whose average diameter is about 70 nm can be obtained. In the process of electrospinning, hydroxyl lithium ester enolates was obtained by reductive reaction of the ionized Li ＋ with active hydroxyl, which caused the molecular structure to be destroyed. CMC-Li showed the exceptional Non-Newtonian fluid properties and had the better spinning performance than CMC-Na. When the surface tension of liquid was damaged by external electric force of spinning voltage to balance each other, the obtained morphology of the fiber was better. Nano-aluminum powder is coated with CMC-Li to form composite nanofibers, and carbonized at the high temperatures. Al/CNF/Li composite fiber was obtained in which nano particles were uniformly distributed. We preliminarily studied the obtained composite material that remained morphology and structure of fiber, which lays the foundation for the later research that the material is applied to soluble membrane, tissue engineering scaffolds, biological medicine, lithium battery and super capacitor, etc. The satisfactory effects have been achieved through analysis of IR, Rheology and SEM. The paper expands the type of polysaccharide polymer that can be electrospun and filled the void of related research, and it also lays the foundation for the study on nano functional materials of new ionic cellulose ether.

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Nanocellulose for Sensing Applications

Nguyen

Naficy

Chandrawati

et al. 2019

Adv Materials Inter

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Nanocellulose market is estimated to be worth $660 million by 2023. Rapid advances in nanotechnology and material sciences have facilitated investigation of nanocellulose, giving rise to their emergence as desirable biomaterials. There has been substantial research undertaken on the applications of nanocellulose in various fields such as renewable energy, electronics, environment, food agriculture, biomedical, and healthcare. More recent attention has focused on the applications of nanocellulose in sensor domain. Here, the recent developments of nanocellulose with more focus on cellulose nanocrystals in sensing applications are highlighted and discussed in detail.

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Selective sensing of Fe3+ at pico-molar level with ethyl cellulose based electrospun nanofibers

Cited by 21 publications

References 28 publications

Applications of Ionic Liquids for the Development of Optical Chemical Sensors and Biosensors

Applications of Ionic Liquids for the Development of Optical Chemical Sensors and Biosensors

Study on Synthesis, Rheological and Electrospinning Functional Materials of Carboxymethyl Cellulose Lithium (CMC-Li)

Nanocellulose for Sensing Applications

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