Abdol Reza Hajipour - Pharmaceutical Research Laboratory, Department of Chemistry, Isfahan University of Technology,Isfahan, Islamic Republic of Iran
Fatemeh Mohammadsaleh - Pharmaceutical Research Laboratory, Department of Chemistry, Isfahan University of Technology,Isfahan, Islamic Republic of Iran
Mohammad Reza Sabzalian - Department of Agronomy and Plant Breeding, College of Agriculture, Isfahan University of Technology, Isfahan, Iran

In the present work we study the complex formation of Cu(II) with PVA by FTIR, XRD, FE-SEM, HRTEMand Visible Spectroscopy. The PVA-Cu(II) complexes were synthesized in a alkaline solution of PVA by addition ofcopper sulfate solution fallowed by heating. Coordination of Cu(II) ions with hydroxyl (O–H) groups of PVA preventsaggregation of particles and therefore nano-sized particles embedded in PVA matrix are formed. Complex formation ofPVA with cupric ions effects on crystalinity of products and an amorphous PVA-Cu(II) composite is obtained. In thefollowing, the antibacterial activity of the as-prepared PVA–Cu(II) complexes was examined against Gram-positivebacteria (Bacillus thuringiensis) and Gram-negative bacteria (Escherichia coli) and results show excellent antibacterialactivity of the complexes against both Gram-positive and Gram-negative bacteria.

Polyvinyl alcohol, Composite, Nano structure, antibacterial activity