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Synthesis of Copper Nanowires and Their Antimicrobial Activity on Strains Isolated Persistent Endodontic Infections

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Copper nanowires, Cu-NWs may have a good antimicrobial effect in endodontic treatment. The objective of this work was to synthesize, characterize and evaluate the antibacterial activity of Cu-NWs on strains obtained from human root canal. A wide distribution of Cu-NWs diameters from 30 to 90 nm was obtained with lengths ranging from 5 to 40 μm. Structural analysis of Cu-NWs showed crystalline planes, which corresponded to Cu, with preferential growth in the direction [110]. The geometric mean MICs was of 289.30 μg/mL, with a MIC50 of 256 μg/mL and a MIC90 of 512 μg/mL for Cu-NWs. Cellular viability of 28 a biofilm tends to decrease the longer it is exposed to Cu-NWs. Synthesized and characterized Cu-NWs have a good antimicrobial effect against clinical strains used in the present study and has a potential to be used for disinfection of the root canal system.
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Keywords: Antibacterial Activity; Copper Nanowires; Endodontic; Enterococcus faecalis

Document Type: Research Article

Affiliations: 1: Department of Restorative Dentistry, Endodontic Discipline, Faculty of Dentistry, University of Concepción, Concepción, 4070409, Chile 2: Department of Microbiology Research Laboratory Antibacterial Agents (LA), School of Biological Sciences, University of Concepción, Concepción, 4070409, Chile 3: Advanced Nanocomposites Research Group (GINA), Hybrid Materials Laboratory (HML), Department of Materials Engineering (DIMAT), Faculty of Engineering, University of Concepción, 270 Edmundo Larenas, Box 160-C, Concepción, 4070409, Chile 4: Department of Mechanical Engineering (DIM), Faculty of Engineering, University of Concepción, 219 Edmundo Larenas, 4070409, Chile 5: Advanced Nanocomposites Research Group (GINA), Hybrid Materials Laboratory (HML), Department of Materials Engineering (DIMAT), Faculty of Engineering, University of Concepción, 270 Edmundo Larenas, Box 160-C, Concepción, 4070409, Chile

Publication date: July 1, 2018

More about this publication?
  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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