Journal ArticleDOI
Measurement of forces between two mica surfaces in aqueous electrolyte solutions in the range 0–100 nm
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The main results and conclusions of experimental measurements of the forces between molecularly smooth mica surfaces in aqueous electrolyte solutions are as follows: as mentioned in this paper, and they are based on the following assumptions:Abstract:
The main results and conclusions of experimental measurements of the forces between molecularly smooth mica surfaces in aqueous electrolyte solutions are as follows:read more
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Journal ArticleDOI
Underscreening in concentrated electrolytes
TL;DR: Surface force measurements are shown to test directly the scaling of the screening length with Bjerrum length and identify a relationship between the concentration dependence of this screening length and empirical measurements of activity coefficient and differential capacitance.
Journal ArticleDOI
Capacitance dilatometry attachment for a surface-force apparatus
TL;DR: In this article, the distance between the surfaces is obtained from the capacitance of a cylindrical parallel-plate capacitor measured with a variable-ratio transformer bridge; the surface separation is made to vary with a magnetic force transducer.
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Elasticity of mutant myosin subfragment-1 arranged on a functional silver surface
TL;DR: To prepare a two-dimensionally arranged myosin subfragment-1 (S1) on a functionalized silver surface, genetically engineered Dictyostelium S1 molecules were used and a highly reactive cysteine residue was fused to the COOH-terminus using the recombinant DNA method.
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Assessing Pair Interaction Potentials of Nanoparticles on Liquid Interfaces
Paul Kim,Yige Gao,Yu Chai,Yu Chai,Paul D. Ashby,Alexander E. Ribbe,David Hoagland,Thomas P. Russell,Thomas P. Russell,Thomas P. Russell +9 more
TL;DR: The pair interaction potentials of polymer-grafted silica nanoparticles at liquid surfaces were determined by scanning electron microscopy, exploiting the nonvolatility of ionic liquids to stabilize the specimens against microscope vacuum.
Journal ArticleDOI
Normal and shear interactions between high grafting density polymer brushes grown by atom transfer radical polymerization
TL;DR: In this paper, the normal and shear interactions in polystyrene polymer brushes with ultra-high surface coverage were measured with a surface force apparatus and significant hysteresis was observed between compression and separation cycles over the experiment time scale.