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The hydrodynamic radius of a macromolecule or colloid particle is . The macromolecule or colloid particle is a collection of subparticles. This is done most commonly for polymers; the subparticles would then be the units of the polymer. is defined by where is the distance between subparticles and , and where the angular brackets represent an ensemble average. The theoretical hydrodynamic radius was originally an estimate by John Gamble Kirkwood of the Stokes radius of a polymer, and some sources still use hydrodynamic radius as a synonym for the Stokes radius.

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  • Hydrodynamic radius (en)
  • Raggio idrodinamico (it)
  • Гидродинамический радиус (ru)
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  • Гидродинамический радиус (англ. hydrodynamic radius или Stokes radius, Stokes-Einstein radius) — размер объекта, который рассчитывается, исходя из предположения о его сферической форме, по величине коэффициента диффузии в жидкости. (ru)
  • The hydrodynamic radius of a macromolecule or colloid particle is . The macromolecule or colloid particle is a collection of subparticles. This is done most commonly for polymers; the subparticles would then be the units of the polymer. is defined by where is the distance between subparticles and , and where the angular brackets represent an ensemble average. The theoretical hydrodynamic radius was originally an estimate by John Gamble Kirkwood of the Stokes radius of a polymer, and some sources still use hydrodynamic radius as a synonym for the Stokes radius. (en)
  • Il raggio idrodinamico di una macromolecola o di un colloide ha due significati. Qualche testo utilizza tale espressione come sinonimo di . Altri libri lo definiscono come un raggio idrodinamico teorico . Considerano le macromolecole o i collodi come un insieme di subparticelle. Questo è utilizzato comunemente per i polimeri; le particelle sarebbero quindi unità del polimero. è definita per: dove è la distanza tra le subparticelle e , e dove i bracci angolari rappresentano una media di insieme. I raggi idrodinamici teorici sono stati stimati originariamente da di un di un polimero. (it)
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  • The hydrodynamic radius of a macromolecule or colloid particle is . The macromolecule or colloid particle is a collection of subparticles. This is done most commonly for polymers; the subparticles would then be the units of the polymer. is defined by where is the distance between subparticles and , and where the angular brackets represent an ensemble average. The theoretical hydrodynamic radius was originally an estimate by John Gamble Kirkwood of the Stokes radius of a polymer, and some sources still use hydrodynamic radius as a synonym for the Stokes radius. Note that in biophysics, hydrodynamic radius refers to the Stokes radius, or commonly to the apparent Stokes radius obtained from size exclusion chromatography. The theoretical hydrodynamic radius arises in the study of the dynamic properties of polymers moving in a solvent. It is often similar in magnitude to the radius of gyration. (en)
  • Il raggio idrodinamico di una macromolecola o di un colloide ha due significati. Qualche testo utilizza tale espressione come sinonimo di . Altri libri lo definiscono come un raggio idrodinamico teorico . Considerano le macromolecole o i collodi come un insieme di subparticelle. Questo è utilizzato comunemente per i polimeri; le particelle sarebbero quindi unità del polimero. è definita per: dove è la distanza tra le subparticelle e , e dove i bracci angolari rappresentano una media di insieme. I raggi idrodinamici teorici sono stati stimati originariamente da di un di un polimero. Il raggio idrodinamico teorico si pone nello studio delle proprietà dinamiche di polimeri che si muovono in un solvente. È spesso grandezza simile al raggio di girazione. (it)
  • Гидродинамический радиус (англ. hydrodynamic radius или Stokes radius, Stokes-Einstein radius) — размер объекта, который рассчитывается, исходя из предположения о его сферической форме, по величине коэффициента диффузии в жидкости. (ru)
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