Advanced Zinc Oxide and Graphene Oxide Based Nanocomposite: Synthesis, Characterization and Their Antimicrobial...

Area of Science:

• Materials Science
• Nanotechnology
• Biomedical Engineering

Background:

• Developing novel antimicrobial agents is crucial for combating infections in biomedical applications.
• Zinc oxide (ZnO) and graphene oxide (GO) are known for their antimicrobial potential.
• Nanocomposites combining ZnO and GO offer synergistic effects for enhanced efficacy.

Purpose of the Study:

• To synthesize and characterize advanced zinc oxide and graphene oxide (ZnO-GO) nanocomposites.
• To evaluate the antimicrobial capabilities of the synthesized ZnO-GO nanocomposites.
• To explore their potential for biomedical applications, including wound healing and coatings.

Main Methods:

• Hydrothermal synthesis of ZnO-GO nanocomposites using zinc nitrate hexahydrate and hexamethylenetetramine at 90°C.
• Characterization using Transmission Electron Microscopy (TEM), X-ray Diffraction (XRD), Fourier-Transform Infrared Spectroscopy (FTIR), and Differential Scanning Calorimetry (DSC).
• Antimicrobial testing against Aspergillus niger (antifungal) and Escherichia coli and Staphylococcus aureus (antibacterial).

Main Results:

• Successful synthesis and characterization of ZnO-GO nanocomposites with well-dispersed ZnO nanoparticles on GO sheets.
• Demonstrated strong antifungal activity against Aspergillus niger.
• Exhibited significant antibacterial activity against Escherichia coli and Staphylococcus aureus.
• Enhanced antimicrobial performance attributed to synergistic effects and reactive oxygen species generation.

Conclusions:

• The study successfully synthesized ZnO-GO nanocomposites with promising antimicrobial properties.
• The developed nanocomposites show potential as multifunctional antimicrobial materials for biomedical applications.
• These findings support the use of ZnO-GO nanocomposites in areas such as wound healing and protective coatings.