Fatiha Boukra Djellal Saiah

This research work is part of the development of innovative biomaterials for therapeutic purposes, in particular biofilms based on natural biopolymers. The main objective is to develop, characterize and evaluate biofilms based on Moringa oleifera extract as an active ingredient, recognized for its antimicrobial and antioxidant properties. These biofilms were synthesized from the biopolymers carboxymethylcellulose (CMC) and starch. To characterize these compounds, FTIR analyses were carried out to identify the molecular interactions between the different constituents. The study also focused on film swelling tests, mechanical stability, and antibacterial activity using targeted microbiological tests. This manuscript highlights an interdisciplinary approach combining materials chemistry, microbiology and sustainable therapeutic innovations.

Os tiocianatos org nicos s o intermedi rios sint ticos importantes para o acesso a compostos de enxofre valiosos. Neste manuscrito, dois m todos (A e B) ser o apresentados para a sua prepara o. De facto, o agente tioci nico utilizado no nosso trabalho foi o NH4SCN que um reagente importante para a produ o desta classe de intermedi rios, na presen a de alguns catalisadores naturais e sint ticos com o agente oxidante K2S2O8 em metanol. Tom mos fenol e indole como modelos de substratos e os resultados obtidos foram muito satisfat rios.