Adsorption of poly(L-lysine) on silica probed by optical reflectometry

Article Article scientifique Article Adsorption of poly(L-lysine) on silica probed by optical reflectometry eng 2010 author Jiang Min 666315 author Popa Ionel Valentin 636920 author Maroni Plinio 644101 author Borkovec Michal 134121 20-25 10.1016/j.colsurfa.2010.01.070 0927-7757 https://linkinghub.elsevier.com/retrieve/pii/S0927775710000944 Optical reflectometry was used to study adsorption behavior of poly(l-lysine) (PLL) on the water–silica interface for different pH and concentrations of the monovalent salt NaBr. At low salt level and low pH, the adsorbed amount increases with increasing salt concentration and pH. This adsorption behavior can be qualitatively explained by electrostatic interactions between the negatively charged substrate and the positively charged polyelectrolyte. At higher salt levels and pH, the adsorbed amount passes through a maximum. This maximum is probably related to the competition between adsorbing monovalent cations and the polyelectrolyte. The initial adsorption kinetics is mainly controlled by the mass transport to the surface. Adsorption Poly(l-lysine) Reflectometry Water–silica interface Dewey 540 40 Département de chimie minérale, analytique et appliquée 145 false Colloids and Surfaces. A, Physicochemical and Engineering Aspects 360 1-3 fc43a7dd-d9d6-4e86-83a6-50b89a5326d5 Article (Published version) Restricted Adsorption_MB_10.pdf 482135 application/pdf restrictedAccess Faculté des sciences / Section de chimie et biochimie / Département de chimie minérale, analytique et appliquée

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Adsorption of poly(L-lysine) on silica probed by optical reflectometry	Colloids and Surfaces. A, Physicochemical and Engineering Aspects			2010	145	0

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Jiang, Min