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Morphological structure of Gluconacetobacter xylinus cellulose and cellulose-based organic-inorganic composite materials
| Content Provider | Scilit |
|---|---|
| Author | Smyslov, R. Yu Ezdakova, K. V. Kopitsa, G. P. Khripunov, A. K. Bugrov, A. N. Tkachenko, A. A. Angelov, Borislav Pipich, Vitaliy Szekely, N. K. Baranchikov, A. E. Latysheva, E. Chetverikov, Yu O. Haramus, V. |
| Copyright Year | 2017 |
| Description | Journal: Journal of Physics: Conference Series Scanning electron microscopy, ultra-small-angle neutron scattering (USANS), small-angle neutron and X-ray scattering (SANS and SAXS), as well as low-temperature nitrogen adsorption, were used in the studies of micro- and mesostructure of polymer matrix prepared from air-dry preliminarily disintegrated cellulose nano-gel film (synthesized by Gluconacetobacter xylinus) and the composites based on this bacterial cellulose. The composites included $ZrO_{2}$ nanoparticles, $Tb^{3+}$ in the form of low molecular weight salt and of metal-polymer complex with poly(vinylpyrrolydone)-poly(methacryloyl-o-aminobenzoic acid) copolymer. The combined analysis of the data obtained allowed revealing three levels of fractal organization in mesostructure of G. xylinus cellulose and its composites. It was shown that both the composition and an aggregation state of dopants have a significant impact on the structural characteristics of the organic-inorganic composites. The composites containing $Tb^{3+}$ ions demonstrate efficient luminescence; its intensity is an order of magnitude higher in the case of the composites with the metal-polymer complex. It was found that there is the optimal content of $ZrO_{2}$ nanoparticles in composites resulting in increased $Tb^{3+}$ luminescence. |
| Related Links | http://iopscience.iop.org/article/10.1088/1742-6596/848/1/012017/pdf |
| ISSN | 17426588 |
| e-ISSN | 17426596 |
| DOI | 10.1088/1742-6596/848/1/012017 |
| Journal | Journal of Physics: Conference Series |
| Volume Number | 848 |
| Language | English |
| Publisher | IOP Publishing |
| Publisher Date | 2017-05-01 |
| Access Restriction | Open |
| Subject Keyword | Journal: Journal of Physics: Conference Series Scanning Electron Microscopy Composite Materials Gluconacetobacter |
| Content Type | Text |
| Resource Type | Article |
| Subject | Physics and Astronomy |
