Nonuniform Growth of Composite Layer-by-Layer Assembled Coatings via Three-Dimensional Expansion of Hydrophobic Magnetite Nanoparticles

Denis V. Voronin, Dmitry Grigoriev, Helmuth Möhwald, Dmitry G. Shchukin, Dmitry A. Gorin

Результат исследований: Материалы для журналаСтатья

7 Цитирования (Scopus)

Выдержка

Nanocomposite coatings are promising for a range of practical applications, and layer-by-layer assembly (LbL) is a versatile tool for nanocomposite formation. However, conventional LbL is a quite laborious procedure taking a lot of time to reach a sufficient thickness of the coatings required for practical applications. Herein, we proposed a novel variant of the LbL approach based on the deposition of hydrophilic polyelectrolyte molecules from a polar solvent and hydrophobic magnetite nanoparticles (NPs) from a nonpolar dispersion medium with an intermediate washing in the same polar solvent. The composite multilayers formed in this way exhibit exponential growth of the thickness and mass. On the basis of quartz crystal microbalance (QCM), Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), atomic force microscopy (AFM), and surface profile measurements, we propose a model describing the driving force of multilayer formation and the factors leading to nonlinear growth of their mass and thickness. The results allow one to expand the understanding of the mechanism of the LbL assembly in order to form multifunctional nanocomposites in a more efficient way.

Язык оригиналаАнглийский
Страницы (с-по)28353-28360
Число страниц8
ЖурналACS Applied Materials and Interfaces
Том7
Номер выпуска51
DOI
СостояниеОпубликовано - 30 дек 2015
Опубликовано для внешнего пользованияДа

Отпечаток

Magnetite Nanoparticles
Magnetite nanoparticles
Coatings
Composite materials
Nanocomposites
Multilayers
Quartz crystal microbalances
Surface measurement
Polyelectrolytes
Washing
Fourier transform infrared spectroscopy
Atomic force microscopy
Scanning electron microscopy
Molecules

ASJC Scopus subject areas

  • Materials Science(all)

Цитировать

Nonuniform Growth of Composite Layer-by-Layer Assembled Coatings via Three-Dimensional Expansion of Hydrophobic Magnetite Nanoparticles. / Voronin, Denis V.; Grigoriev, Dmitry; Möhwald, Helmuth; Shchukin, Dmitry G.; Gorin, Dmitry A.

В: ACS Applied Materials and Interfaces, Том 7, № 51, 30.12.2015, стр. 28353-28360.

Результат исследований: Материалы для журналаСтатья

Voronin, Denis V. ; Grigoriev, Dmitry ; Möhwald, Helmuth ; Shchukin, Dmitry G. ; Gorin, Dmitry A. / Nonuniform Growth of Composite Layer-by-Layer Assembled Coatings via Three-Dimensional Expansion of Hydrophobic Magnetite Nanoparticles. В: ACS Applied Materials and Interfaces. 2015 ; Том 7, № 51. стр. 28353-28360.
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