Articles with "pei" as a keyword



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Mixed Diethanolamine and Polyethyleneimine with Enhanced CO2 Capture Capacity from Air

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Published in 2023 at "Advanced Science"

DOI: 10.1002/advs.202207253

Abstract: Supported polyethyleneimine (PEI) adsorbent is one of the most promising commercial direct air capture (DAC) adsorbents with a long research history since 2002. Although great efforts have been input, there are still limited improvements for… read more here.

Keywords: pei; capacity; air; polyethyleneimine ... See more keywords
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Polyethyleneimine‐grafted membranes for simultaneously adsorbing heavy metal ions and rejecting suspended particles in wastewater

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Published in 2017 at "Aiche Journal"

DOI: 10.1002/aic.15789

Abstract: Heavy metal ions (HMIs) in wastewater can be removed by polyethyleneimine (PEI) adsorption, however, it is difficult to recycle PEI macromolecules from their mixture with suspended particles in wastewater. A novel HMIs adsorption technique with… read more here.

Keywords: suspended particles; metal ions; pei; heavy metal ... See more keywords
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Investigation into the viscoelastic response at various gelation performance, thermal stability and swelling kinetics of fly ash reinforced polymer gels for water control in mature oilfields

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Published in 2017 at "Asia-Pacific Journal of Chemical Engineering"

DOI: 10.1002/apj.2049

Abstract: The present crippling crude oil price worldwide demands a new strategy and cost-effective technology that will promote additional oil recovery in mature oilfields. Herein, crosslinked polyacrylamide (PAM) gels reinforced with coal fly ash (CFA) were… read more here.

Keywords: gelation; water; mature oilfields; pei ... See more keywords
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Synthesis and Application of Low Molecular Weight PEI-based Copolymers for siRNA Delivery with Smart Polymer Blends.

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Published in 2022 at "Macromolecular bioscience"

DOI: 10.1002/mabi.202200409

Abstract: Polyethylenimine (PEI) is a commonly used cationic polymer for small-interfering RNA (siRNA) delivery due to its high transfection efficiency at low commercial cost. However, high molecular weight PEI is cytotoxic and thus, its practical application… read more here.

Keywords: pei; kda; molecular weight; pcl ... See more keywords
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Vorteile der Piezo-Technologie in der Rhinoplastik

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Published in 2019 at "HNO"

DOI: 10.1007/s00106-019-0675-x

Abstract: ZusammenfassungHintergrundIn der plastischen und rekonstruktiven Gesichtschirurgie ist eine präzise, atraumatische Handhabung von Knorpel, Knochen und umliegendem Weichgewebe für das operative Ergebnis von besonderer Bedeutung. Die Piezo-Technologie („piezoelectric instrumentation“, PEI) bietet eine neue Möglichkeit des Gewebeerhalts… read more here.

Keywords: von; der rhinoplastik; pei; der ... See more keywords
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Fabrication of covalently bonded nanostructured thin films of epoxy resin and polydimethylsiloxane for oil adsorption

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Published in 2017 at "Polymer Bulletin"

DOI: 10.1007/s00289-017-1988-0

Abstract: Abstract Thin films of architectures PEI(CNERa/PDMS)n, PEI(CNERb/PDMS)n, (PEI/CNERb)n and PEI(CNERb/NH2-MMT/PEI)n have been fabricated via covalent layer-by-layer technique. Different film deposition parameters such as solvent type, polymer concentration, polymer ratio and dipping time have been optimized… read more here.

Keywords: thin films; oil adsorption; pei cnerb; pei ... See more keywords
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Epoxy polymers modified with polyetherimide. Part I: rheological and thermomechanical characteristics

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Published in 2020 at "Polymer Bulletin"

DOI: 10.1007/s00289-020-03174-8

Abstract: Using the methods of viscometry, SEM, DMA the effect of polyetherimide (PEI) on the properties of ED-20 epoxy oligomer during and after curing was studied. It was shown that the introduction of the modifier significantly… read more here.

Keywords: part rheological; epoxy polymers; modified polyetherimide; polyetherimide part ... See more keywords
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Combining high-intensity focused ultrasound (HIFU) ablation with percutaneous ethanol injection (PEI) in the treatment of benign thyroid nodules

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Published in 2020 at "European Radiology"

DOI: 10.1007/s00330-020-07317-3

Abstract: Objective Assessing the 6-month efficacy of combined high-intensity focused ultrasound (HIFU) ablation with percutaneous ethanol injection (PEI) in benign thyroid nodules by comparing it with HIFU ablation alone. Methods One hundred and eighty-one (55.2%) patients… read more here.

Keywords: hifu; treatment; hifu ablation; group ... See more keywords
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Transfection of bovine fetal fibroblast with polyethylenimine (PEI) nanoparticles: effect of particle size and presence of fetal bovine serum on transgene delivery and cytotoxicity

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Published in 2017 at "Cytotechnology"

DOI: 10.1007/s10616-017-0075-6

Abstract: The development of efficient transfection protocols for livestock cells is crucial for implementation of cell-based transgenic methods to produce genetically modified animals. We synthetized fully deacylated linear 22, 87 and 217 kDa polyethylenimine (PEI) nanoparticles and… read more here.

Keywords: transfection; pei nanoparticles; effect; pei ... See more keywords
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pH-Sensitive Self-Assembled Microspheres Composed of Poly(Ethyleneimine) and Cinnamic Acid

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Published in 2017 at "Applied Biochemistry and Biotechnology"

DOI: 10.1007/s12010-017-2534-0

Abstract: Microspheres which were sensitive to pH change were developed by utilizing cinnamic acid (CA) as a physical cross-linker for poly(ethyleneimine) (PEI). At pH 7.0, the microspheres were efficiently formed at the PEI/CA ratio of 1:3.4, 1:5.1,… read more here.

Keywords: cinnamic acid; poly ethyleneimine; pei; interaction ... See more keywords
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PEI fluorination reduces toxicity and promotes liver-targeted siRNA delivery

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Published in 2020 at "Drug Delivery and Translational Research"

DOI: 10.1007/s13346-020-00790-9

Abstract: Polyethyleneimine (PEI) has been extensively investigated as an efficient carrier for nucleic acid delivery. Yet, it suffers from a high toxicity profile that hinders clinical translation. Fluorination has proven to be a valid approach to… read more here.

Keywords: sirna delivery; delivery; fluorination; toxicity ... See more keywords