Hydrodynamic radius

The hydrodynamic radius of a macromolecule or colloid particle has two meanings. Some books use it as a synonym for the Stokes radius.

Other books define a theoretical hydrodynamic radius $R_{\rm hyd}$ . They consider the macromolecule or colloid particle to be a collection of $N$ subparticles. This is done most commonly for polymers; the subparticles would then be the units of the polymer. $R_{\rm hyd}$ is defined by

单词	Hydrodynamic radius
释义	Hydrodynamic radius 英语百科 Hydrodynamic radius The hydrodynamic radius of a macromolecule or colloid particle has two meanings. Some books use it as a synonym for the Stokes radius. Other books define a theoretical hydrodynamic radius $R_{\rm hyd}$ . They consider the macromolecule or colloid particle to be a collection of $N$ subparticles. This is done most commonly for polymers; the subparticles would then be the units of the polymer. $R_{\rm hyd}$ is defined by
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