Evidence for non-DLVO hydration interactions in solutions of the protein apoferritin

被引：128
|
作者：
Petsev, DN [1 ]
Vekilov, PG
机构：
[1] Univ Alabama, Ctr Micrograv & Mat Res, Huntsville, AL 35899 USA
[2] Univ Alabama, Dept Chem, Huntsville, AL 35899 USA
来源：
PHYSICAL REVIEW LETTERS | 2000年 / 84卷 / 06期
关键词：
D O I：
10.1103/PhysRevLett.84.1339
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We have studied molecular interactions in solutions of the protein apoferritin by static and dynamic light scattering. When plotted against the electrolyte concentration, the second osmotic virial coefficient exhibits a minimum. The ascending branch of this dependence is a manifestation of a surprisingly strong repulsion between the molecules at electrolyte concentrations about and above 0.2M, where electrostatic interactions are suppressed. We argue that the repulsion is due to the water structuring, enhanced by the accumulation of hydrophilic counterions around the apoferritin molecules, giving rise to so-called hydration forces.
引用
收藏
页码：1339 / 1342
页数：4
相关论文
共 50 条
  • [31] A model for hydration interactions between apoferritin molecules in solution
    Paunov, VN
    Kaler, EW
    Sandler, SL
    Petsev, DN
    JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2001, 240 (02) : 640 - 643
  • [32] Colloidal interactions: contact limiting laws, double-layer dissociation, and "non-DLVO" (Derjaguin–Landau–Verwey–Overbeek) forces
    Jan J. Spitzer
    Colloid and Polymer Science, 2003, 281 : 589 - 592
  • [33] Effect of Solvent Composition on Non-DLVO Forces and Oriented Attachment of Zinc Oxide Nanoparticles
    Liu, Lili
    Schmid, Sakshi Yadav
    Feng, Zhaojie
    Li, Dongsheng
    Droubay, Timothy C.
    Pauzauskie, Peter J.
    Schenter, Gregory K.
    De Yoreo, James J.
    Chun, Jaehun
    Nakouzi, Elias
    ACS NANO, 2024, 18 (26) : 16743 - 16751
  • [34] The impact of non-DLVO forces on the onset of shear thickening of concentrated electrically stabilized suspensions
    Kaldasch, Joachim
    Senge, Bernhard
    Laven, Jozua
    RHEOLOGICA ACTA, 2009, 48 (06) : 665 - 672
  • [35] Aggregation of Colloidal Particles in the Presence of Hydrophobic Anions: Importance of Attractive Non-DLVO Forces
    Cao, Tianchi
    Trefalt, Gregor
    Borkovec, Michal
    LANGMUIR, 2018, 34 (47) : 14368 - 14377
  • [36] Non-DLVO adhesion of F-specific RNA bacteriophages to abiotic surfaces: Importance of surface roughness, hydrophobic and electrostatic interactions
    Dika, C.
    Ly-Chatain, M. H.
    Francius, G.
    Duval, J. F. L.
    Gantzer, C.
    COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 2013, 435 : 178 - 187
  • [37] Interaction forces between oil-water particle interfaces - Non-DLVO forces
    Dagastine, RR
    Chau, TT
    Chan, DYC
    Stevens, GW
    Grieser, F
    FARADAY DISCUSSIONS, 2005, 129 : 111 - 124
  • [38] The impact of non-DLVO forces on the onset of shear thickening of concentrated electrically stabilized suspensions
    Joachim Kaldasch
    Bernhard Senge
    Jozua Laven
    Rheologica Acta, 2009, 48 : 665 - 672
  • [39] Stimulus-responsive nanoparticles stabilized by non-DLVO interactions: Implications of ionic strength and copolymer (x:y) fraction on aggregation kinetics
    Gambinossi, Filippo
    Chanana, Munish
    Mylon, Steven E.
    Ferri, James K.
    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2014, 248
  • [40] Surface Force Measurements between Titanium Dioxide Surfaces Prepared by Atomic Layer Deposition in Electrolyte Solutions Reveal Non-DLVO Interactions: Influence of Water and Argon Plasma Cleaning
    Walsh, Rick B.
    Evans, Drew
    Craig, Vincent S. J.
    LANGMUIR, 2014, 30 (08) : 2093 - 2100
12345