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      Bacteria immobilized electrospun polycaprolactone and polylactic acid fibrous webs for remediation of textile dyes in water

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      Embargo Lift Date: 2019-10-01
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      Author(s)
      Sarioglu O.F.
      S. Keskin, N. O.
      Celebioglu A.
      Tekinay, T.
      Uyar, Tamer
      Date
      2017-10
      Source Title
      Chemosphere
      Print ISSN
      0045-6535
      Publisher
      Elsevier
      Volume
      184
      Pages
      393 - 399
      Language
      English
      Type
      Article
      Item Usage Stats
      301
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      272
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      Abstract
      In this study, preparation and application of novel biocomposite materials for textile dye removal which are produced by immobilization of specific bacteria onto electrospun nanofibrous webs are presented. A textile dye remediating bacterial isolate, Clavibacter michiganensis, was selected for bacterial immobilization, a commercial reactive textile dye, Setazol Blue BRF-X, was selected as the target contaminant, and electrospun polycaprolactone (PCL) and polylactic acid (PLA) nanofibrous polymeric webs were selected for bacterial integration. Bacterial adhesion onto nanofibrous webs was monitored by scanning electron microscopy (SEM) imaging and optical density (OD) measurements were performed for the detached bacteria. After achieving sufficient amounts of immobilized bacteria on electrospun nanofibrous webs, equivalent web samples were utilized for testing the dye removal capabilities. Both bacteria/PCL and bacteria/PLA webs have shown efficient remediation of Setazol Blue BRF-X dye within 48 h at each tested concentration (50, 100 and 200 mg/L), and their removal performances were very similar to the free-bacteria cells. The bacteria immobilized webs were then tested for five times of reuse at an initial dye concentration of 100 mg/L, and found as potentially reusable with higher bacterial immobilization and faster dye removal capacities at the end of the test. Overall, these findings suggest that electrospun nanofibrous webs are available platforms for bacterial integration and the bacteria immobilized webs can be used as starting inocula for use in remediation of textile dyes in wastewater systems.
      Keywords
      Bacterial immobilization
      Dye bioremoval
      Electrospinning
      Polycaprolactone
      Polylactic acid
      Computer software reusability
      Electrospinning
      Nanofibers
      Pollution
      Polycaprolactone
      Polyesters
      Remediation
      Scanning electron microscopy
      Textiles
      Bacterial adhesion
      Bacterial isolates
      Biocomposite materials
      Immobilized bacteria
      Initial dye concentration
      Poly lactic acid
      Removal performance
      Waste water systems
      Nanofiber
      Polycaprolactone
      Polylactic acid
      Water
      Coloring agent
      Polycaprolactone
      Polyester
      Polylactide
      Waste water
      Water pollutant
      Adhesion
      Bacterium
      Concentration (composition)
      immobilization
      pollutant removal
      wastewater
      water pollution
      Bacterium adherence
      Bacterium isolation
      Bioremediation
      Clavibacter michiganensis
      Controlled study
      Electrospinning
      Immobilization
      Nonhuman
      Optical density
      Scanning electron microscopy
      Textile
      Waste water management
      Bacterium
      Isolation and purification
      Metabolism
      Textile industry
      Waste water
      Water pollutant
      Bacteria (microorganisms)
      Clavibacter michiganensis
      Bacteria
      Biodegradation, Environmental
      Coloring Agents
      Polyesters
      Textile Industry
      Waste Water
      Water Pollutants, Chemical
      Permalink
      http://hdl.handle.net/11693/37422
      Published Version (Please cite this version)
      https://doi.org/10.1016/j.chemosphere.2017.06.020
      Collections
      • Institute of Materials Science and Nanotechnology (UNAM) 2258
      • Nanotechnology Research Center (NANOTAM) 1179
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