these include the requirements that proteoglycans in the extracellular matrix not to be immobilized but to have translational diffusive mobility and concentration gradients to be osmotically active , that chondroitin sulfate segmental mobility describing translational motion largely determines osmotic flow and hydraulic permeability of the proteoglycans , and that the proteoglycans exhibit an enhanced ability to resist flow as compared to other macromolecules .
C0015350
extracellular matrix
C0033692
proteoglycans