By Barry W. Ninham, Pierandrea Lo Nostro
Not easy the adored notions of colloidal thought, Barry Ninham and Pierandrea Lo Nostro confront the medical lore of molecular forces and colloidal technology in an incisive and thought-provoking demeanour. The authors clarify the advance of those classical theories, discussing among different themes electrostatic forces in electrolytes, particular ion results and hydrophobic interactions. through the booklet they query assumptions, unearth flaws and current new effects and concepts. From such research, a qualitative and predictive framework for the sector emerges; the influence of this can be mentioned within the latter half the ebook via strength behaviour in self meeting. the following, various varied phenomena are defined, from surfactants to organic functions, all richly illustrated with pertinent, intellectually stimulating examples. With arithmetic stored to a minimal, and old evidence and anecdotes woven during the textual content, this can be a hugely enticing and readable remedy for college students and researchers in technology and engineering.
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Extra resources for Molecular Forces and Self Assembly: In Colloid, Nano Sciences and Biology
4) The first term gives the Born self energy of an ion immersed in a dielectric medium. The second term gives the correction to the self energy due to the electrolyte. This can be used to provide some estimate of the free energy of transfer of an ion from water to another medium, say oil or the interior of a membrane of a different dielectric constant. It can be used to get some estimates of solubility by comparing the free energies of a solid ionic crystal with the free energies of transfer of ions to the solute.
1 Born self energy The electrostatic self energy of an ion arises out of the interactions of the (spread out) ionic charge of the ion with itself in the presence of other ions [2,3]. 4) The first term gives the Born self energy of an ion immersed in a dielectric medium. The second term gives the correction to the self energy due to the electrolyte. This can be used to provide some estimate of the free energy of transfer of an ion from water to another medium, say oil or the interior of a membrane of a different dielectric constant.
Lennard-Jones potential V(r) = Br−12 – Ar−6 . At short distance the interaction becomes repulsive, unless the atoms form a chemical bond. g. ad hoc Lennard-Jones potential. It is only recently that more soundly based analytic forms for short-range potentials have been calculated . There are further, sometimes very long-range forces, between uncharged, especially linear molecules due to the presence of electrolytes . These will occur later. With this catalogue of individual molecular forces to start with, we can try to build up to the thermodynamics of a system of many interacting molecules via statistical mechanics.
Molecular Forces and Self Assembly: In Colloid, Nano Sciences and Biology by Barry W. Ninham, Pierandrea Lo Nostro