Выдержка

Reducing and stabilizing abilities of three poly(ethylene glycol) (PEG) samples modified with primary amino groups in one or two terminal positions of the polymer chains, as well as with dendrons based on L-aspartic acid in both terminal positions of the polymer chains, have been studied. Stable dispersions of silver nanoparticles have been formed at room temperature in aqueous solutions of AgNO3 in the presence of the modified PEGs without additional reducing agents. Spectrophotometric examinations have shown that an increase in the number of amino groups per polymer molecule results in accelerating the formation of nanoparticles and improving the stabilizing ability of the modified PEGs. Molecular hydrodynamic methods (analytical centrifugation and dynamic light scattering) have been used to determine the absolute values of the molecular mass of silver nanoparticles stabilized with dendronized PEGs and the hydrodynamic sizes of the particles. Molecular hydrodynamics and electron microscopy have yielded interconsistent estimates of silver nanoparticle sizes.

Язык оригиналаанглийский
Страницы (с-по)226-234
Число страниц9
ЖурналColloid Journal
Том81
Номер выпуска3
DOI
СостояниеОпубликовано - 1 мая 2019

Отпечаток

Polyethylene glycols
glycols
ethylene
Nanoparticles
nanoparticles
Silver
hydrodynamics
silver
Polymers
Hydrodynamics
polymers
aspartic acid
Dendrimers
Centrifugation
Reducing Agents
Molecular mass
Reducing agents
Dynamic light scattering
electron microscopy
light scattering

Предметные области Scopus

  • Поверхности и интерфейсы
  • Физическая и теоретическая химия
  • Коллоидная химия и химия поверхности

Цитировать

@article{9f40d495f9b54fefa7b55186ca278d15,
title = "Ag(0) Nanoparticles Stabilized with Poly(Ethylene Glycol)s Modified with Amino Groups: Formation and Properties in Solutions",
abstract = "Reducing and stabilizing abilities of three poly(ethylene glycol) (PEG) samples modified with primary amino groups in one or two terminal positions of the polymer chains, as well as with dendrons based on L-aspartic acid in both terminal positions of the polymer chains, have been studied. Stable dispersions of silver nanoparticles have been formed at room temperature in aqueous solutions of AgNO3 in the presence of the modified PEGs without additional reducing agents. Spectrophotometric examinations have shown that an increase in the number of amino groups per polymer molecule results in accelerating the formation of nanoparticles and improving the stabilizing ability of the modified PEGs. Molecular hydrodynamic methods (analytical centrifugation and dynamic light scattering) have been used to determine the absolute values of the molecular mass of silver nanoparticles stabilized with dendronized PEGs and the hydrodynamic sizes of the particles. Molecular hydrodynamics and electron microscopy have yielded interconsistent estimates of silver nanoparticle sizes.",
keywords = "SILVER NANOPARTICLES, SIZE, REDUCTION, METHACRYLATE, COPOLYMERS, SCATTERING, POLYMERS, HYDROGEN, CITRATE, ACID",
author = "Gubarev, {A. S.} and Lezov, {A. A.} and Mikhailova, {M. E.} and Senchukova, {A. S.} and Ubyivovk, {E. V.} and Nekrasova, {T. N.} and Girbasova, {N. V.} and Bilibin, {A. Yu} and Tsvetkov, {N. V.}",
year = "2019",
month = "5",
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doi = "10.1134/S1061933X19030062",
language = "English",
volume = "81",
pages = "226--234",
journal = "Colloid Journal of the Russian Academy of Sciences: Kolloidnyi Zhurnal",
issn = "1061-933X",
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number = "3",

}

Ag(0) Nanoparticles Stabilized with Poly(Ethylene Glycol)s Modified with Amino Groups : Formation and Properties in Solutions. / Gubarev, A. S.; Lezov, A. A.; Mikhailova, M. E.; Senchukova, A. S.; Ubyivovk, E. V.; Nekrasova, T. N.; Girbasova, N. V.; Bilibin, A. Yu; Tsvetkov, N. V.

В: Colloid Journal, Том 81, № 3, 01.05.2019, стр. 226-234.

Результат исследований: Научные публикации в периодических изданияхстатья

TY - JOUR

T1 - Ag(0) Nanoparticles Stabilized with Poly(Ethylene Glycol)s Modified with Amino Groups

T2 - Formation and Properties in Solutions

AU - Gubarev, A. S.

AU - Lezov, A. A.

AU - Mikhailova, M. E.

AU - Senchukova, A. S.

AU - Ubyivovk, E. V.

AU - Nekrasova, T. N.

AU - Girbasova, N. V.

AU - Bilibin, A. Yu

AU - Tsvetkov, N. V.

PY - 2019/5/1

Y1 - 2019/5/1

N2 - Reducing and stabilizing abilities of three poly(ethylene glycol) (PEG) samples modified with primary amino groups in one or two terminal positions of the polymer chains, as well as with dendrons based on L-aspartic acid in both terminal positions of the polymer chains, have been studied. Stable dispersions of silver nanoparticles have been formed at room temperature in aqueous solutions of AgNO3 in the presence of the modified PEGs without additional reducing agents. Spectrophotometric examinations have shown that an increase in the number of amino groups per polymer molecule results in accelerating the formation of nanoparticles and improving the stabilizing ability of the modified PEGs. Molecular hydrodynamic methods (analytical centrifugation and dynamic light scattering) have been used to determine the absolute values of the molecular mass of silver nanoparticles stabilized with dendronized PEGs and the hydrodynamic sizes of the particles. Molecular hydrodynamics and electron microscopy have yielded interconsistent estimates of silver nanoparticle sizes.

AB - Reducing and stabilizing abilities of three poly(ethylene glycol) (PEG) samples modified with primary amino groups in one or two terminal positions of the polymer chains, as well as with dendrons based on L-aspartic acid in both terminal positions of the polymer chains, have been studied. Stable dispersions of silver nanoparticles have been formed at room temperature in aqueous solutions of AgNO3 in the presence of the modified PEGs without additional reducing agents. Spectrophotometric examinations have shown that an increase in the number of amino groups per polymer molecule results in accelerating the formation of nanoparticles and improving the stabilizing ability of the modified PEGs. Molecular hydrodynamic methods (analytical centrifugation and dynamic light scattering) have been used to determine the absolute values of the molecular mass of silver nanoparticles stabilized with dendronized PEGs and the hydrodynamic sizes of the particles. Molecular hydrodynamics and electron microscopy have yielded interconsistent estimates of silver nanoparticle sizes.

KW - SILVER NANOPARTICLES

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KW - REDUCTION

KW - METHACRYLATE

KW - COPOLYMERS

KW - SCATTERING

KW - POLYMERS

KW - HYDROGEN

KW - CITRATE

KW - ACID

UR - http://www.scopus.com/inward/record.url?scp=85066937189&partnerID=8YFLogxK

U2 - 10.1134/S1061933X19030062

DO - 10.1134/S1061933X19030062

M3 - Article

AN - SCOPUS:85066937189

VL - 81

SP - 226

EP - 234

JO - Colloid Journal of the Russian Academy of Sciences: Kolloidnyi Zhurnal

JF - Colloid Journal of the Russian Academy of Sciences: Kolloidnyi Zhurnal

SN - 1061-933X

IS - 3

ER -