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Dynamic Properties of Adsorption Layers of κ-Casein Fibrils.
Milyaeva, Olga Yu; Akentiev, Alexander V; Bykov, Alexey G; Loglio, Giuseppe; Miller, Reinhard; Portnaya, Irina; Rafikova, Anastasiya R; Noskov, Boris A.
Affiliation
  • Milyaeva OY; Department of Colloid Chemistry, St. Petersburg State University, Universitetsky pr. 26, 198504 St. Petersburg, Russia.
  • Akentiev AV; Department of Colloid Chemistry, St. Petersburg State University, Universitetsky pr. 26, 198504 St. Petersburg, Russia.
  • Bykov AG; Department of Colloid Chemistry, St. Petersburg State University, Universitetsky pr. 26, 198504 St. Petersburg, Russia.
  • Loglio G; Institute of Condensed Matter Chemistry and Energy Technology, 16149 Genova, Italy.
  • Miller R; Institute of Condensed Matter Physics, Technische Universität Darmstadt, D-64289 Darmstadt, Germany.
  • Portnaya I; CryoEM Laboratory of Soft Matter, Faculty of Biotechnology and Food Engineering, Technion - Israel Institute of Technology, Haifa 32000003, Israel.
  • Rafikova AR; Department of Colloid Chemistry, St. Petersburg State University, Universitetsky pr. 26, 198504 St. Petersburg, Russia.
  • Noskov BA; Department of Colloid Chemistry, St. Petersburg State University, Universitetsky pr. 26, 198504 St. Petersburg, Russia.
Langmuir ; 39(43): 15268-15274, 2023 10 31.
Article in En | MEDLINE | ID: mdl-37867296
ABSTRACT
The dynamic surface properties of native κ-casein solutions and aqueous dispersions of its fibrils differ significantly from the corresponding properties of the systems with globular proteins. The dependence of the dynamic surface elasticity of κ-casein solutions on surface pressure has a local maximum, indicating partial displacement of macromolecules from the proximal region of the surface layer to the distal one. This dependence becomes monotonic for fibril dispersions, similar to the results for dispersions of globular protein fibrils, but unlike the latter case, the surface elasticity close to the steady state reaches values that are approximately four times higher than the data for native protein solutions at the same concentrations.
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Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Caseins Language: En Journal: Langmuir Journal subject: QUIMICA Year: 2023 Document type: Article Affiliation country: RUSSIA
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Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Caseins Language: En Journal: Langmuir Journal subject: QUIMICA Year: 2023 Document type: Article Affiliation country: RUSSIA