Abstract: A process for the production of an active molecule vector that can be applied in the biomedical field, includes the following stages: Diluting a monomer that has at least two NH2 groups that are separated by at least four carbons in water, Adjusting the pH to a value of between 6.5 and 7.5, Adding glutaraldehyde, OHC—(CH2)3—COH, and Awaiting the polycondensation reaction and the formation of imines, and Recovering the poly(monomer-G) that is obtained. The monomer is selected from among the L-ornithine, the L-lysine or the L-citrulline. Further described are the biomedical vector that is obtained, and the use as a vector of active molecules, such as fatty acids, antioxidants, vitamin-enriched compounds or neurotransmitters for having bacteriostatic, anti-allergenic, anti-parasitic, anti-predatory or antifungal, anti-inflammatory or immunomodulating activities.