Specific ion effects, representative of near-universal Hofmeister phenomena, are illustrated in three different systems. These are the formation of supramol. assemblies from cyclodextrins, the optical rotation of L-serine, and the growth rate of two kinds of microorganisms (Staphylococcus aureus and Pseudomonas aeruginosa). The strong specific ion effects can be correlated with the anion polarizabilities and related physico-chem. parameters. The results show the relevance of dispersion (non-electrostatic) forces in these phenomena.
Hofmeister effects in supramolecular and biological systems / LO NOSTRO, Pierandrea; Ninham, B.; Milani, Silvia; LO NOSTRO, Antonella; Pesavento, Giovanna; Baglioni, Piero. - In: BIOPHYSICAL CHEMISTRY. - ISSN 0301-4622. - STAMPA. - 124:(2006), pp. 208-213. [10.1016/j.bpc.2006.04.004]
Hofmeister effects in supramolecular and biological systems
LO NOSTRO, PIERANDREA;MILANI, SILVIA;LO NOSTRO, ANTONELLA;PESAVENTO, GIOVANNA;BAGLIONI, PIERO
2006
Abstract
Specific ion effects, representative of near-universal Hofmeister phenomena, are illustrated in three different systems. These are the formation of supramol. assemblies from cyclodextrins, the optical rotation of L-serine, and the growth rate of two kinds of microorganisms (Staphylococcus aureus and Pseudomonas aeruginosa). The strong specific ion effects can be correlated with the anion polarizabilities and related physico-chem. parameters. The results show the relevance of dispersion (non-electrostatic) forces in these phenomena.
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