  In this work we prove global existence and uniform boundedness of solutions
of 2X2 reaction-diffusion systems with control of mass structure and
nonlinearities of unlimited growth. Furthermore the results are obtained
without restrictions on diffusion terms neither on the initial data. Such
systems possess many applications in physical-chemistry. Our technique of proof
relies on a judiciously rectified Lyapunov functional used previously by the
author in several papers
