Diffusivities of creatine phosphate and ATP in an aqueous solution studied by pulsed field gradient 31P NMR.

Abstract
The diffusivities of creatine phosphate and ATP were measured in an aqueous solution by pulsed field gradient 31P NMR. The diffusion coefficient of creatine phosphate was 1.4 times larger than that of ATP, suggesting the advantage of creatine phosphate in the energy transport in muscle cells.