Copper-containing polyvinyl alcohol composite systems: Preparation,characterization and biological activity |
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| Affiliation: | 1. Department of Neuroscience, University of Wisconsin, Medical School, 1300 University Avenue, Madison, 53706-1532 WI, USA;2. Pharmaceutical Research Laboratory, Department of Chemistry, Isfahan University of Technology, Isfahan 84156, Iran;3. Department of Agronomy and Plant Breeding, College of Agriculture, Isfahan University of Technology, Isfahan 84156-83111, Iran;1. Shanghai Synchrotron Radiation Facility, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201204, China;2. State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Micro-system and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China;1. Faculty of Physics, Adam Mickiewicz University, Umultowska 85, 61-614 Poznań, Poland;2. Faculty of Biological Sciences, University of Zielona Góra, Szafrana 1, 65-516 Zielona Góra, Poland;3. Institute of Molecular Physics, Polish Academy of Science, Smoluchowskiego 17, 60-179, Poznań, Poland;4. Joint Institute for Nuclear Research, 141 980 Dubna, Russian Federation;1. Department of Mechanical Engineering and Science, Graduate School of Engineering, Kyoto University, Yoshida-honmachi, Sakyo-ku, Kyoto 606-8501, Japan;2. Institute of Systems Engineering, China Academy of Engineering Physics, Mianyang 621900, China;3. Department of Astronautical Science and Mechanics, Harbin Institute of Technology, Harbin 150001, China;1. School of Science and Technology, Federal University of Rio Grande do Norte, Campus Universitário Lagoa Nova, 59078-970 Natal, RN, Brazil;2. Institute of Chemistry, Federal University of Rio Grande do Norte, Campus Universitário Lagoa Nova, 59072-970 Natal, RN, Brazil;3. Department of Fundamental Chemistry, Federal University of Pernambuco, Av. Prof. Moraes Rego, 1235 Cidade Universitária, 50670-901 Recife, PE, Brazil;1. Key Laboratory of Cluster Science, Ministry of Education of China, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Department of Chemistry, Beijing Institute of Technology, Beijing 100081, PR China;2. National Laboratory of Mineral Materials, School of Materials Sciences and Technology, China University of Geosciences, Beijing 100083, PR China;3. School of Pharmacy, Hubei University of Science and Technology, Xianning 437100, PR China |
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| Abstract: | The present investigation reports, the complex formation of Cu(II) with polyvinyl alcohol (PVA) and the synthesis of PVA-stabilized Cu2O particles. This PVA–Cu2O composite has been prepared via chemical reduction method using PVA–Cu(II) complex as precursor. At first, Cu(II) ions were stabilized in PVA matrix via complex formation with OH groups; subsequently, this PVA–Cu(II) macromolecular complex as precursor reacted with ascorbic acid as reducing agent at pH=12 to prepare PVA–Cu2O composite. The products were characterized by FTIR, XRD, FE-SEM, HRTEM, Visible Spectroscopy and atomic absorption. In the following, the antibacterial properties of as-prepared composites were examined against Gram-positive (Bacillus thuringiensis) and Gram-negative bacteria (Escherichia coli), and the results showed excellent antibacterial activity of these materials. |
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| Keywords: | Oxides Polymers Nanostructures Chemical synthesis |
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