Zobrazeno 1 - 10
of 38
pro vyhledávání: '"Adel Aschi"'
Publikováno v:
Journal of Polymer Engineering. 42:488-497
In this work, we analyzed the pH, temperature, and salt effects of the charged polypeptide and its size, poly-d-lysine (PDL) molecules while applying dynamic light scattering (DLS), Zeta potential, and rheology techniques to assess the most important
Publikováno v:
International Journal of Polymeric Materials and Polymeric Biomaterials. 71:1210-1220
We present investigations of the structures and properties of the complex formed by a strong polyanion: poly-(sodium 4-styrene sulfonate) (PSSNa) and weak polycation: poly-L-ornithine (PLO) by comb...
Autor:
Adel Aschi, Imen Naassaoui
Publikováno v:
Journal of Macromolecular Science, Part B. 58:673-688
The structural response to temperature and pH changes of poly-l-lysine (PLL) has been studied by a variety of experimental methods including turbidimetry, dynamic light scattering, and Zeta...
Autor:
Adel Aschi, Eya Hergli
Publikováno v:
e-Polymers. 19:120-128
The effect of high salt concentration and pH on the binding of globular protein to polycation at different molar masses has been investigated by dynamic light scattering (DLS), turbidimetry and electrostatic modeling for the protein. In dilute concen
Autor:
Mohamed Zied, Mejri, Adel, Aschi
Publikováno v:
Colloids and Surfaces B: Biointerfaces. 217:112627
The coacervates of the Poly (2-acrylamido-2-methyl-1-propanesulfonic acid-co-acrylonitrile) / β-Galactosidase complex are characterized using several techniques (Turbidimetry, dynamic and static light scattering (DLS / SLS), optical microscopy, imag
Publikováno v:
European Physical Journal E: Soft matter and biological physics
European Physical Journal E: Soft matter and biological physics, EDP Sciences: EPJ, 2021, 44 (2), pp.26. ⟨10.1140/epje/s10189-021-00041-w⟩
European Physical Journal E: Soft matter and biological physics, EDP Sciences: EPJ, 2021, 44 (2), pp.26. ⟨10.1140/epje/s10189-021-00041-w⟩
When a microparticle is trapped at a fluid interface, particle's electrical charge and weight combine to deform the interface. Such deformation is expected to affect the particle diffusion via hydrodynamics boundary conditions. Using available models
Autor:
Adel Aschi, Imen Naassaoui
Publikováno v:
European biophysics journal : EBJ. 50(6)
The mixture of poly-L-lysine (PLL) and long-chain PSSNa can lead to the formation of soluble complexes depending on pH, PLL concentration, ionic strength, and temperature. The influence of these stimuli was studied by zetametry, dynamic and ultra-sma
Publikováno v:
Journal of Molecular Liquids. 241:435-446
In the present work, we have applied Dynamic Light Scattering (DLS) and rheological measurements in order to assess the most important characteristics of Ficoll400 (Mw = 400 kDa). We evaluate the effect of temperature and concentration on rheological
Publikováno v:
European biophysics journal : EBJ. 48(8)
We studied the complex between ovalbumin and long flexible poly-(sodium 4-styrene sulfonate) as a function of pH and temperature. We used various techniques [turbidimetry, conductometry, dynamic light scattering, viscosimetry, and ultra-small-angle l
Publikováno v:
Physica B: Condensed Matter. 503:18-24
We study in this paper the effect of small globular protein on the dynamic properties of long-chain NaPSS in semidilute regime using Dynamic Light Scattering and viscometry in three phases respecting the pH of the medium. The scaling concept of the h