A novel hydrophilic polymer-based anion exchanger grafted by quaternized polyethyleneimine for ion chromatography

Yang, Zhanqiang; Li, Zongying; Zhang, Feifang; Yang, Bingcheng; Zhang, Shengmao

doi:10.1016/j.talanta.2019.01.024

Cited by 25 publications

(10 citation statements)

References 17 publications

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“…In this study, an ingenious contact strategy was used for the facile synthesis of a new type of carbon-based fluorescent nanomaterial by just mixing thoroughly PEI and AA in aqueous solution at ambient temperature. 35,36 As illustrated in Scheme 1, it is well-known that both PEI and AA have low fluorescence performance themselves. The solution of PEI and AA is mixed to form CNCs, which can have an emission peak at 516 nm at an excitation wavelength of 380 nm.…”

Section: ■ Results and Discussionsupporting

confidence: 83%

“…Due to its high solubility in water and chemical stability, PEI is an excellent reaction substrate in many synthetic processes. , As a hydrophilic polyamine, PEI contains rich primary amine, secondary amine, and tertiary amine groups, which could provide the valuable opportunity to connect with AA by hydrogen bonds. So, the molecular weight (MW) of PEI is an important reaction condition for the synthesis of CNCs.…”

Section: Resultsmentioning

confidence: 99%

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Luminescent Carbon Nanoclusters for Sensitive Detection of Ascorbic Acid and Fluorescent Printing

Zhang

Sheng

et al. 2022

ACS Appl. Nano Mater.

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Carbon nanoclusters (CNCs) is a kind of carbon-based luminescent nanomaterial between macromolecular substances and carbon quantum dots, which is a valuable potential probe for fluorescence sensing and biological imaging. Herein, a mild and fast contact route was established for synthesis of CNCs with strong green fluorescence at 516 nm. The method involves direct mixing of polyethyleneimine (PEI) solution with ascorbic acid (AA) at room temperature without any energy and time consumption. The CNCs were formed once PEI and AA solutions came into contact, which could be used to detect the presence of AA. The fluorescence intensity of the as-prepared CNCs was also quantitatively enhanced with the increase of AA. Therefore, a fluorescence “turn-on” method was developed for the sensitive detection of AA based on the formation of the CNCs in a linear range from 0.5 to 100 μM with a low limit of detection of 0.15 μM. This method was also successfully employed to detect AA in real samples of human plasma and cherry tomato with recoveries ranging from 97 to 105%. Due to the excellent fluorescence property and low toxicity of the as-prepared CNCs, they were also applied as a bright fluorescent ink for fluorescent printing.

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Section: ■ Results and Discussionsupporting

confidence: 83%

Section: Resultsmentioning

confidence: 99%

Luminescent Carbon Nanoclusters for Sensitive Detection of Ascorbic Acid and Fluorescent Printing

Zhang

Sheng

et al. 2022

ACS Appl. Nano Mater.

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“…It is used for separation and purification of biomacromolecules, enzyme immobilization, biosensor construction, and drug delivery [33,[37][38][39][40][41][42]. PEI can additionally be applied as a heavy metal removal agent during water treatment [43][44][45][46][47], a dye removal agent in the paper and textile industry [48][49][50][51], in alkaline ion-exchange membranes [52][53][54][55], and in CO 2 adsorbents [30,[56][57][58][59]. The amino groups in PEI are highly reactive and, thus, can be easily modified in order to obtain quaternary ammonium polyethylenimine derivatives [60].…”

Section: Introductionmentioning

confidence: 99%

Nanoparticles of Quaternary Ammonium Polyethylenimine Derivatives for Application in Dental Materials

Chrószcz-Porębska

Barszczewska-Rybarek

2020

Polymers

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Various quaternary ammonium polyethylenimine (QA-PEI) derivatives have been synthesized in order to obtain nanoparticles. Due to their antibacterial activity and non-toxicity towards mammalian cells, the QA-PEI nanoparticles have been tested extensively regarding potential applications as biocidal additives in various dental composite materials. Their impact has been examined mostly for dimethacrylate-based restorative materials; however, dental cements, root canal pastes, and orthodontic adhesives have also been tested. Results of those studies showed that the addition of small quantities of QA-PEI nanoparticles, from 0.5 to 2 wt.%, led to efficient and long-lasting antibacterial effects. However, it was also discovered that the intensity of the biocidal activity strongly depended on several chemical factors, including the degree of crosslinking, length of alkyl telomeric chains, degree of N-alkylation, degree of N-methylation, counterion type, and pH. Importantly, the presence of QA-PEI nanoparticles in the studied dental composites did not negatively impact the degree of conversion in the composite matrix, nor its mechanical properties. In this review, we summarized these features and functions in order to present QA-PEI nanoparticles as modern and promising additives for dental materials that can impart unique antibacterial characteristics without deteriorating the products’ structures or mechanical properties.

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“…The lowest plate height was about 0.15 mm at a flow-rate 3 µL/min and 0.11 mm at a flow-rate 4 µL/min for bromide using Si-APTES and Si-PAPTMS hybrid monolithic columns, respectively. The efficiency of these columns was relatively low compared to other anion exchange columns [9,37]. The van Deemter curve for Si-PAPTMS is significantly flatter than Si-APTES hybrid monolithic column.…”

Section: Effect Of the Flow-rate On Retention Behavior Of Inorganic Amentioning

confidence: 87%

One-pot Facile Preparation of Amino-functionalized Silica Hybrid Monoliths for Mixed-mode Chromatography

2019

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Silica hybrid monolithic columns were prepared using two precursors, in which organo-functionalized trialkoxysilanes are mixed with tetraalkoxysilanes. In this study, several types of amino-functionalized silica hybrid monolithic columns were prepared via single-step "one-pot" approach, and the amount of silica precursors, porogens, as well as the reaction conditions were optimized. The preparation was carried out by mixing the silica precursors, i.e. tetraethoxysilane (TEOS) or tetramethoxysilane (TMOS) with amino precursors such as aminopropyltrimethoxysilane (APTES), aminoethylaminopropyl-trimethoxysilane (AEAPTMS), and phenylaminopropyltrimethoxysilane (PAPTMS) in a porogenic solution. The chromatographic performance of these hybrid monolithic columns was optimized by investigating several parameters through the separation of inorganic anions (IO3 -, BrO3 -, Br -, NO2 -, NO3 -, I -, SCN -) and some polar compounds (thymine, thymidine, adenosine, adenine, uridine). Results showed that the silica hybrid monolithic columns could be operated at higher flow-rate that favors rapid separation. The run-to-run repeatability of Si-APTES and Si-PAPTMS hybrid monolithic columns were satisfactory with relative standard deviations (n = 5) of less than 8% for all the analyte anions.Amino-functionalized silica precursors was used in the preparation of hybrid monolithic column to reduce the preparation time via one-pot approach. The amine groups in the structure can provide weak anion exchange interaction and also hydrophilic interaction. The synthesized hybrid monolithic columns revealed good mechanical stability and good separation repeatability.

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A novel hydrophilic polymer-based anion exchanger grafted by quaternized polyethyleneimine for ion chromatography

Cited by 25 publications

References 17 publications

Luminescent Carbon Nanoclusters for Sensitive Detection of Ascorbic Acid and Fluorescent Printing

Luminescent Carbon Nanoclusters for Sensitive Detection of Ascorbic Acid and Fluorescent Printing

Nanoparticles of Quaternary Ammonium Polyethylenimine Derivatives for Application in Dental Materials

One-pot Facile Preparation of Amino-functionalized Silica Hybrid Monoliths for Mixed-mode Chromatography

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