The instant invention generally provides an activated polymer composition containing an active agent (i.e., a chemically- or biologically-active agent), an activated fiber comprising the activated polymer composition, an activated-fiber composite comprising the activated fiber and a fiberweb support, processes of fabricating the activated fiber and activated-fiber composition, and an article comprising the activated polymer composition. The instant invention also generally provides a highly filled polymer filler composite comprising a molecularly self-assembling (MSA) material and a mineral filler or conductive filler dispersed in the MSA material, and a process of making and article comprising the highly filled polymer filler composite.