1. When we plot the values of osmotic pressure, swelling, and viscosity of gelatin solutions as ordinates over the pH as abscissae, practically identical curves are obtained for the effect of monobasic acids (HCl, HBr, HNO(3), and acetic acid) on these properties. 2. The curves obtained for the effect of H(2)SO(4) on gelatin are much lower than those obtained for the effect of monobasic acids, ...

Depletion-induced interactions between colloids in colloid-polymer mixtures depend in range and strength on size, shape, and concentration of depletants. Crowding by colloids in turn affects shapes of polymer coils, such as biopolymers in biological cells. By simulating hard-sphere colloids and random-walk polymers, modeled as fluctuating ellipsoids, we compute depletion-induced potentials and ...

A room temperature surfactant-free synthesis of gold nanoparticles in the size range 10–20 nm that only requires HAuCl4 as precursor, NaOH base, water solvent and a mono-alcohol such methanol or ethanol reducing agent, has recently been detailed. This approach is promisingly simple to obtain colloids stable for months. Here, it shown use fresh stock solutions base one key ensure formation small...

Delamination of two-dimensional materials is a requisite step for exploiting their unique properties. Herein, we report on the formation stable colloidal solutions Ti3C2 and Mo2Ti2C3 MXene nanosheets by dispersion electrostatic exfoliation stacked multilayer MXenes in presence albumin. multilayered into atomically thin resulted with good stability due to adsorption albumin, which prevents re-ag...