The present invention is directed to
chitosan-derivative compounds and structures, methods of making
chitosan-derivative compounds and methods for controlling, inhibiting and enhancing microbial populations in a variety of environments. The present invention is also directed to the control, inhibition and enhancement of microbial populations in animals, particularly humans. The microbial populations include
bacteria, viruses and other pathogens where control of microbial populations are a necessity. The
chitosan-derivative compounds of the present invention include chitosan-
arginine compounds, related chitosan-L / D unnatural
amino acid compounds, chitosan-acid amine compounds, chitosan-L / D natural
amino acid derivative compounds, co-derivatives of the chitosan-derivative compounds, salts of the
chitosan derivative compounds, and chitosan-
guanidine compounds.