Viscoelastic Acoustic Response of Layered Polymer Films at Fluid-Solid Interfaces: Continuum Mechanics Approach
TLDR
In this article, the authors derived the general solution of a wave equation describing the dynamics of two-layer viscoelastic polymer materials of arbitrary thickness deposited on solid (quartz) surfaces in a fluid environment.Abstract:
We have derived the general solution of a wave equation describing the dynamics of two-layer viscoelastic polymer materials of arbitrary thickness deposited on solid (quartz) surfaces in a fluid environment. Within the Voight model of viscoelastic element, we calculate the acoustic response of the system to an applied shear stress, i.e. we find the shift of the quartz generator resonance frequency and of the dissipation factor, and show that it strongly depends on the viscous loading of the adsorbed layers and on the shear storage and loss moduli of the overlayers. These results can readily be applied to quartz crystal acoustical measurements of the viscoelasticity of polymers which conserve their shape under the shear deformations and do not flow, and layered structures such as protein films adsorbed from solution onto the surface of self-assembled monolayers.read more
Citations
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Variations in Coupled Water, Viscoelastic Properties, and Film Thickness of a Mefp-1 Protein Film during Adsorption and Cross-Linking: A Quartz Crystal Microbalance with Dissipation Monitoring, Ellipsometry, and Surface Plasmon Resonance Study
TL;DR: It is shown how quantitative data about the thickness, shear elastic modulus, and shear viscosity of the protein film can be obtained with the QCM-D technique, even beyond the Sauerbrey regime, if frequency (f) and energy dissipation (D) measurements measured at multiple harmonics are combined with theoretical simulations using a Voight-based viscoelastic model.
Journal ArticleDOI
Hearing what you cannot see and visualizing what you hear: interpreting quartz crystal microbalance data from solvated interfaces.
TL;DR: QCM users are offered a set of guidelines for interpretation and quantitative analysis of QCM data based on a synthesis of well-established concepts rooted in rheological research of the last century and of new results obtained in the last several years.
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A comparative study of protein adsorption on titanium oxide surfaces using in situ ellipsometry, optical waveguide lightmode spectroscopy, and quartz crystal microbalance/dissipation
Fredrik Höök,Janos Vörös,M. Rodahl,R. Kurrat,Peter Böni,Jeremy J. Ramsden,Marcus Textor,Nicholas D. Spencer,Pentti Tengvall,J. Gold,Bengt Herbert Kasemo +10 more
TL;DR: In this article, the adsorption kinetics of three model proteins (human serum albumin, fibrinogen and hemoglobin) were measured and compared using three different experimental techniques: optical waveguide lightmode spectroscopy (OWLS), ellipsometry (ELM) and quartz crystal microbalance (QCM-D).
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Innovation in Layer-by-Layer Assembly.
Joseph J. Richardson,Joseph J. Richardson,Jiwei Cui,Mattias Björnmalm,Julia A. Braunger,Hirotaka Ejima,Frank Caruso +6 more
TL;DR: This Review explores, discusses, and detail innovation in layer-by-layer assembly in terms of past and present developments, and highlights how these might guide future advances.
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Intact Vesicle Adsorption and Supported Biomembrane Formation from Vesicles in Solution: Influence of Surface Chemistry, Vesicle Size, Temperature, and Osmotic Pressure†
TL;DR: In this paper, the adsorption kinetics of small unilamellar egg-yolk phosphatidylcholine vesicles were investigated by the quartz crystal microbalance−dissipation (QCM−D) technique, as a function of surface chemistry (on SiO2, Si3N4, Au, TiO2 and Pt), temperature (273−303 K), vesicle size (25−200 nm), and osmotic pressure.
References
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Book
Viscoelastic properties of polymers
TL;DR: In this article, the authors describe the nature of Viscoelastic behavior of polymeric systems and approximate relations among the linear Viscoels and approximate interrelations among the Viscelastic Functions.
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Verwendung von Schwingquarzen zur Wägung dünner Schichten und zur Mikrowägung
TL;DR: In this paper, eigenfrequenz der Platte infolge Vergroserung der schwingenden Masse is vermessen, so das eine empirische Eichung bei der Schichtwagung mit Schwingquarzen entfallt.
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Use of quartz vibration for weighing thin films on a microbalance
G. Sauerbrey,F. Sauerbrey +1 more
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Assembly of multicomponent protein films by means of electrostatic layer-by-layer adsorption
TL;DR: In this article, a multilayer films which contain ordered layers of more than one protein species were assembled by means of electrostatic adsorption mostly with positively charged poly(ethy1enimine) (PEI) or with negatively charged poly (styrenesu1fonate) (PSS).