Encapsulation of living bacteria in electrospun cyclodextrin ultrathin fibers for bioremediation of heavy metals and reactive dye from wastewater
| Autor: | Omer Faruk Sarioglu, Turgay Tekinay, Asli Celebioglu, Tamer Uyar, Nalan Oya San Keskin |
|---|---|
| Přispěvatelé: | Uyar, Tamer |
| Rok vydání: | 2017 |
| Předmět: |
Reactive dye
Nanofibers 02 engineering and technology Wastewater 010402 general chemistry 01 natural sciences Waste Disposal Fluid Microbiology chemistry.chemical_compound Colloid and Surface Chemistry Bioremediation Naphthalenesulfonates Metals Heavy Cyclodextrin Physical and Theoretical Chemistry chemistry.chemical_classification Cyclodextrins biology Electrospinning Bacteria Surfaces and Interfaces General Medicine Electrochemical Techniques Hydrogen-Ion Concentration 021001 nanoscience & nanotechnology biology.organism_classification 0104 chemical sciences Biodegradation Environmental Chemical engineering chemistry Heavy metals Nanofiber Microscopy Electron Scanning Encapsulation Biocomposite 0210 nano-technology Water Pollutants Chemical Biotechnology |
| Zdroj: | Colloids and Surfaces B: Biointerfaces |
| ISSN: | 1873-4367 |
| Popis: | Cyclodextrins (CD) are cyclic oligosaccharides produced from the enzymatic degradation of starch as a white powder form; on the other hand, they can be transformed into ultrathin electrospun fiber form by electrospinning technique. The electrospun cyclodextrin fibers (CD-F) can be quite attractive materials to encapsulate bacteria for bioremediation purposes. For instance, CD-F not only serve as a carrier matrix but also it serves as a feeding source for the encapsulated bacteria. In the present study, we demonstrate a facile approach by encapsulation of bacteria into CD-F matrix for wastewater treatment application. The natural and non-toxic properties of CD-F render a better bacterial viability for fibrous biocomposite. The encapsulated bacteria in CD-F exhibit cell viability for more than 7 days at 4 °C storage condition. Furthermore, we have tested the bioremediation capability of bacteria/CD-F biocomposite for the treatment of heavy metals (Nickel(II) and Chromium(VI)) and textile dye (Reactive Black 5, RB5). The bacteria/CD-F biocomposite has shown removal efficiency of Ni(II), Cr(VI) and RB5 as 70 ± 0.2%, 58 ± 1.4% and 82 ± 0.8, respectively. As anticipated, the pollutants removal capabilities of the bacteria/CD-F was higher compare to free bacteria since bacteria can use CD as an extra carbon source which promotes their growth rate. This study demonstrates that CD-F are suitable platforms for the encapsulation of bacterial cells to develop novel biocomposites that have bioremediation capabilities for wastewater treatment. The Scientific and Technological Research Council of Turkey (TUBITAK, project #114Y264) is acknowledged for funding the research. Dr. Uyar acknowledges The Turkish Academy of Sciences - Outstanding Young Scientists Award Program (TUBA-GEBIP) for partial funding of the research. A. Celebioglu acknowledges TUBITAK project #113Y348 for a postdoctoral fellowship. O.F. Sarioglu acknowledges TUBITAK BIDEB (2211-C) for National Ph.D. Scholarship. Appendix A |
| Databáze: | OpenAIRE |
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