Preparation of Polyaniline - Carboxymethyl Cellulose - TiO2 hybrid nanocomposite and Investigation of its physicochemical and Antibacterial Properties

In the present research, polyaniline (PANI) was used as a conducting polymer and carboxymethyl cellulose (CMC) also used as a biopolymer because of its antibacterial property and also suitable biocompatibility. TiO2 nanoparticles also was considered as a reinforcing agent to prepare PANI-CMC-TiO2 nanocomposite with different weight rates. The obtained results from review of antibacterial property showed that nanocomposites with optimal weight percentages have the most antibacterial effects on both two different types of Gram-positive and Gram-negative bacteria. The obtained results from TGA tests also indicate promotion of thermal stability of nanocomposite in respect to pure CMC. Also, the FTIR and SEM techniques were used to characterize the composition and structure of nanocomposite.