Overcharging in biological systems: Reversal of electrophoretic mobility of aqueous polyaspartate by multivalent cations (CROSBI ID 182944)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Kubickova, Anna ; Krizek, Tomas ; Coufal, Pavel ; Vazdar, Mario ; Wernersson, Erik ; Heyda, Jan ; Jungwirth, Pavel
engleski
Overcharging in biological systems: Reversal of electrophoretic mobility of aqueous polyaspartate by multivalent cations
Charge reversal as an extreme case of charge compensation is directly observed by capillary electrophoresis for a negatively charged peptide in aqueous solutions of trivalent cations. Atomistic and coarse-grained simulations provide molecular interpretation of this eff ect showing that it is largely of electrostatic origin with a minor contribution of chemical speci ficity of the salt ions.
multivalent cations; electrophoresis; overcharging; molecular dynamics; Metropolis Monte Carlo
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Podaci o izdanju
108 (18)
2012.
186101-1-186101-4
objavljeno
0031-9007
10.1103/PhysRevLett.108.186101