作者: Robert Farina , Nicolas Laugel , Jing Yu , Matthew Tirrell
关键词: Inorganic chemistry 、 Lanthanum 、 Counterion 、 Polyelectrolyte brushes 、 Ion 、 Colloid 、 Surface forces apparatus 、 Chemical engineering 、 Charge density 、 Polyelectrolyte 、 Chemistry
摘要: Applications of end-tethered polyelectrolyte “brushes” to modify solid surfaces have been developed and studied for their colloidal stabilization high lubrication properties. Current efforts expanded into biological realms stimuli-responsive materials. Our work explores responsive reversible aspects brush behavior when chains interact with oppositely charged multivalent ions complexes, which act as counterions. There is a significant void in the literature regarding interactions species. This paper demonstrates that between bearing negatively brushes are highly sensitive presence trivalent lanthanum, La3+. Lanthanum cations unique chains, part due small size hydration radius results local charge density. Using La3+ conjunction surface forces apparatus (SFA), adhesion has been...