Complexes of Polyethyleneimine with Cu2+ Ions in Aqueous Solutions as Precursors for Obtaining Copper Nanoparticles

Ustyakina, D. R.; Chevtaev, A. S.; Tabunshchikov, A. I.; Ozerin, A. S.; Radchenko, F. S.; Новаков, И. А.

doi:10.1134/s1560090419030151

Cited by 8 publications

(1 citation statement)

References 5 publications

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“…Figure 7 shows the results of a study of a colloidal solution of PEI-CuNPs by UV-Vis spectroscopy before and after dialysis. According to [33], the absorption spectrum of a copper acetate solution is characterized by a maximum at a wavelength of λ = 800 nm. In the spectrum of the PEI solution, no maxima are observed in the wavelength range of 200-1000 nm.…”

Section: Uv-vis Absorption Spectra Of Pei-cunps Before and After Dialysismentioning

confidence: 99%

Preparation and study of the physicochemical characteristics of multilayer polymer composites based on poly(ethyleneimine)-stabilized copper nanoparticles and poly(sodium 2-acrylamide-2-methyl-1-propanesulfonate)

et al. 2021

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Multilayer films were synthesized from a complex of branched polyethyleneimine (PEI) with copper nanoparticles (PEI-CuNPs) and sodium poly-2-acrylamide-2-methyl-1-propanesulfonate (PAMPSNa), applied layer-by-layer (LbL) on a solid support in an acidic medium. Protonation of the amino groups of PEI in an acidic medium increases the positive charge of the PEI-CuNPs system to +43.5 mV and promotes the formation of an interpolyelectrolyte complex between the positively charged PEI-CuNPs and the highly charged anionic polyelectrolyte PAMPS, the ζ-potential of which was -141 mV. AFM images and SEM micrographs showed a uniform distribution of spherical copper nanoparticles in the homogeneous structure of the multilayer film. The optical characteristics and hydrodynamic dimensions of PEI-CuNPs indicate the formation of PEI-CuNPs nanoparticles with sizes of 60-300 nm, with an average size of up to 100 nm. Copper nanoparticles distributed uniformly in a multilayer PEI-CuNPs/PAMPS film may be of interest for applications in the field of membrane catalysis, biochips, sensor membranes, and controlled drug delivery.

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Section: Uv-vis Absorption Spectra Of Pei-cunps Before and After Dialysismentioning

confidence: 99%

Preparation and study of the physicochemical characteristics of multilayer polymer composites based on poly(ethyleneimine)-stabilized copper nanoparticles and poly(sodium 2-acrylamide-2-methyl-1-propanesulfonate)

et al. 2021

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Amine-rich quartz nanoparticles for Cu(II) chelation and their application as an efficient catalyst for oxidative degradation of Rhodamine B dye

Gemeay

El-Halwagy

Elsherbiny

et al. 2021

Environ Sci Pollut Res

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Colloidal synthesis of phospholipid-copper nanoclusters as active catalysts for the oxidative degradation of water tracer fluorescent molecule

Kalidhasan

Chu

Lim

et al. 2023

Journal of Molecular Liquids

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Complexes of Polyethyleneimine with Cu2+ Ions in Aqueous Solutions as Precursors for Obtaining Copper Nanoparticles

Cited by 8 publications

References 5 publications

Preparation and study of the physicochemical characteristics of multilayer polymer composites based on poly(ethyleneimine)-stabilized copper nanoparticles and poly(sodium 2-acrylamide-2-methyl-1-propanesulfonate)

Preparation and study of the physicochemical characteristics of multilayer polymer composites based on poly(ethyleneimine)-stabilized copper nanoparticles and poly(sodium 2-acrylamide-2-methyl-1-propanesulfonate)

Amine-rich quartz nanoparticles for Cu(II) chelation and their application as an efficient catalyst for oxidative degradation of Rhodamine B dye

Colloidal synthesis of phospholipid-copper nanoclusters as active catalysts for the oxidative degradation of water tracer fluorescent molecule

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