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Colloids and Surfaces is a peer-reviewed journal of surface science. It was established in 1980. In 1993, it split into two parts Colloids and Surfaces A and Colloids ...
It is the leading journal focusing on the science and application of systems and materials in which the interface dominates structure and function. Research areas covered include surface and colloid chemistry. Langmuir publishes original research articles, invited feature articles, perspectives, and editorials.
The current understanding of soft matter grew from Albert Einstein's work on Brownian motion, [5] [6] understanding that a particle suspended in a fluid must have a similar thermal energy to the fluid itself (of order of kT). This work built on established research into systems that would now be considered colloids. [7]
Pages for logged out editors learn more. Contributions; Talk; Colloids and Surfaces A: Physicochemical and Engineering Aspects
Diagram showing the ionic concentration and potential difference as a function of distance from the charged surface of a particle suspended in a dispersion medium. Zeta potential is the electrical potential at the slipping plane. This plane is the interface which separates mobile fluid from fluid that remains attached to the surface.
The surface energy of a liquid may be measured by stretching a liquid membrane (which increases the surface area and hence the surface energy). In that case, in order to increase the surface area of a mass of liquid by an amount, δA, a quantity of work, γ δA, is needed (where γ is the surface energy density of the liquid).
These include electrostatic interactions and van der Waals forces, because they both contribute to the overall free energy of the system. [21] A colloid is stable if the interaction energy due to attractive forces between the colloidal particles is less than kT, where k is the Boltzmann constant and T is the absolute temperature. If this is the ...
Small-angle X-ray scattering (SAXS) is a small-angle scattering technique by which nanoscale density differences in a sample can be quantified. This means that it can determine nanoparticle size distributions, resolve the size and shape of (monodisperse) macromolecules, determine pore sizes and characteristic distances of partially ordered materials. [1]