Before revision:  Our approach enables us to attain a twofold goal. Firstly it yields a simple interpretation of  solvent viscosity dependence for enzymatic/protein reactions that requires neither a modification of the Kramers' theory nor that of the Stokes law.
After revision:  Our approach enables us to attain a twofold purpose. On the one hand it yields a simple interpretation of solvent viscosity dependence for enzymatic/protein reactions that requires neither a modification of the Kramers' theory nor that of the Stokes law.