Innovative Synthesis of PANI/Cu 2 O Nanocomposite and Its Antibacterial Properties**

Mengmeng Zhang, Sha Han, Xiaohui Niu, Hongxia Li, Deyi Zhang, Haiyan Fan, Yingde Wang

2021

Data confidence 70 medium

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Abstract

Abstract To fight various bacteria‐caused inflammations and overcome drug resistance, the present work develops a simple in‐situ growth method to synthesize Cu 2 O nanoparticles involved nanocomposite using polyaniline (PANI) matrix. The morphology of the as prepared composite was characterized by Scanning Electron Microscope (SEM) and X‐ray Diffraction Spectroscopy (XRD), and the molecular structure was identified using Fourier‐Transforms Infrared FT‐IR, X‐ray Photoelectron Spectroscopy (XPS), and UV‐Visible Spectroscopy (UV‐Vis). The antibacterial properties of PANI/Cu 2 O nanocomposite were tested against Escherichia coli (E. coli), Staphylococcus aureus (S. aureus) , and Methicillin‐resistant Staphylococcus aureus (MRSA) . The combination of PANI and Cu 2 O indicated a synergistic antibacterial effect. The analysis of the antimicrobial mechanism revealed that the positive charge released from the nanocomposite takes the main responsibility. This work provides new ideas for the design of metal oxide and polymer nanocomposites and the development of antibiotics.