Editorial overview: Theory and simulation of proteins at interfaces: how physics comes to life

Adamczyk, Zbǐgniew; Dan, Nily

doi:10.1016/j.cocis.2019.04.002

Cited by 3 publications

(2 citation statements)

References 10 publications

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“…Deposition of nano- or microscale particles on solid surfaces is of great importance in a variety of fields of science and technology. − Particle-covered surfaces are used, for example, as functional materials in electro-optical devices, − biosensors, − biomaterials, , and plasmon-resonance spectroscopy devices . In other applications (e.g., medical devices and membrane filtration systems), particle deposition needs to be prevented to avoid surface fouling …”

Section: Introductionmentioning

confidence: 99%

Streaming Current for Surfaces Covered by Square and Hexagonal Monolayers of Spherical Particles

Blawzdziewicz,

Adamczyk,

Ekiel-Jeżewska

2023

ACS Omega

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The interface and particle contributions to the streaming current of flat substrates covered with ordered square or hexagonal monolayers of spherical particles were theoretically evaluated for particle coverage up to close packing. The exact numerical results were approximated using fitting functions that contain exponential and linear terms to account for hydrodynamic screening and charge convection from the particle surfaces exposed to external flow. According to our calculations, the streaming currents for the ordered and random particle arrangements differ within a typical experimental error. Thus, streaming-current measurements, supplemented with our fitting functions, can be conveniently used to evaluate the particle coverage without detailed knowledge of the particle distribution. Our results for equal interface and particle ζ-potentials indicate that roughness can reduce the streaming current by more than 30%, even in the limit of the small size of spherical roughness asperities.

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Section: Introductionmentioning

confidence: 99%

Streaming Current for Surfaces Covered by Square and Hexagonal Monolayers of Spherical Particles

Blawzdziewicz,

Adamczyk,

Ekiel-Jeżewska

2023

ACS Omega

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“…Moreover, it is also difficult to control and systematically vary experimental parameters such as pH and ionic strength. This provides an opportunity for adequate schemes of theoretical modeling to contribute and expand the progress in the field of protein adsorption [44][45][46][47].…”

Section: Introductionmentioning

confidence: 99%

Proteins Adsorbing onto Surface-Modified Nanoparticles: Effect of Surface Curvature, pH, and the Interplay of Polymers and Proteins Acid–Base Equilibrium

2022

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Protein adsorption onto nanomaterials is a process of vital significance and it is commonly controlled by functionalizing their surface with polymers. The efficiency of this strategy depends on the design parameters of the nanoconstruct. Although significant amount of work has been carried out on planar surfaces modified with different types of polymers, studies investigating the role of surface curvature are not as abundant. Here, we present a comprehensive and systematic study of the protein adsorption process, analyzing the effect of curvature and morphology, the grafting of polymer mixtures, the type of monomer (neutral, acidic, basic), the proteins in solution, and the conditions of the solution. The theoretical approach we employed is based on a molecular theory that allows to explicitly consider the acid–base reactions of the amino acids in the proteins and the monomers on the surface. The calculations showed that surface curvature modulates the molecular organization in space, but key variables are the bulk pH and salt concentration (in the millimolar range). When grafting the NP with acidic or basic polymers, the surface coating could disfavor or promote adsorption, depending on the solution’s conditions. When NPs are in contact with protein mixtures in solution, a nontrivial competitive adsorption process is observed. The calculations reflect the balance between molecular organization and chemical state of polymers and proteins, and how it is modulated by the curvature of the underlying surface.

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Sol-gel technology for greener and more sustainable antimicrobial textiles that use silica matrices with C, and Ag and ZnO as biocides

Igal

Zanotti

Zuin

et al. 2021

Current Research in Green and Sustainable Chemistry

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Editorial overview: Theory and simulation of proteins at interfaces: how physics comes to life

Cited by 3 publications

References 10 publications

Streaming Current for Surfaces Covered by Square and Hexagonal Monolayers of Spherical Particles

Streaming Current for Surfaces Covered by Square and Hexagonal Monolayers of Spherical Particles

Proteins Adsorbing onto Surface-Modified Nanoparticles: Effect of Surface Curvature, pH, and the Interplay of Polymers and Proteins Acid–Base Equilibrium

Sol-gel technology for greener and more sustainable antimicrobial textiles that use silica matrices with C, and Ag and ZnO as biocides

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