  We show that the force generated by active enzyme molecules are strong enough
to influence the dynamics of their surroundings under artificial crowded
environments. We measured the behavior of polymer microparticles in a
quasi-two-dimensional system under aqueous environment, at various area
fraction values of particles. In the presence of enzymatic activity not only
the diffusion of the suspended particles at shorter time-scale regime enhanced,
the system also showed a transition from sub-diffusive to diffusive dynamics at
longer time-scale limits. Similar observations were also recorded with enzyme
functionalized microparticles. Brownian dynamics simulations have been
performed to support the experimental observations.
