Structural organization of bacterial cellulose: The origin of anisotropy and layered structures.

Autor: Gromovykh TI; Department of Biotechnology, I.M. Sechenov First Moscow State Medical University of the Ministry of Health of the Russian Federation (Sechenov University), Bolshaya Pirogovskaya st., Moscow, 119991, Russian Federation., Pigaleva MA; Faculty of Physics, M.V. Lomonosov Moscow State University, Leninskie gory 1-2, Moscow,119991, Russian Federation; A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilova st., 28, Moscow, 119991, Russian Federation., Gallyamov MO; Faculty of Physics, M.V. Lomonosov Moscow State University, Leninskie gory 1-2, Moscow,119991, Russian Federation; A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilova st., 28, Moscow, 119991, Russian Federation., Ivanenko IP; Faculty of Physics, M.V. Lomonosov Moscow State University, Leninskie gory 1-2, Moscow,119991, Russian Federation., Ozerova KE; Faculty of Physics, M.V. Lomonosov Moscow State University, Leninskie gory 1-2, Moscow,119991, Russian Federation., Kharitonova EP; Faculty of Physics, M.V. Lomonosov Moscow State University, Leninskie gory 1-2, Moscow,119991, Russian Federation., Bahman M; Department of Biotechnology, I.M. Sechenov First Moscow State Medical University of the Ministry of Health of the Russian Federation (Sechenov University), Bolshaya Pirogovskaya st., Moscow, 119991, Russian Federation., Feldman NB; Department of Biotechnology, I.M. Sechenov First Moscow State Medical University of the Ministry of Health of the Russian Federation (Sechenov University), Bolshaya Pirogovskaya st., Moscow, 119991, Russian Federation., Lutsenko SV; Department of Biotechnology, I.M. Sechenov First Moscow State Medical University of the Ministry of Health of the Russian Federation (Sechenov University), Bolshaya Pirogovskaya st., Moscow, 119991, Russian Federation., Kiselyova OI; Faculty of Physics, M.V. Lomonosov Moscow State University, Leninskie gory 1-2, Moscow,119991, Russian Federation. Electronic address: ok@polly.phys.msu.ru.
Jazyk: angličtina
Zdroj: Carbohydrate polymers [Carbohydr Polym] 2020 Jun 01; Vol. 237, pp. 116140. Date of Electronic Publication: 2020 Mar 09.
DOI: 10.1016/j.carbpol.2020.116140
Abstrakt: In this paper, we perform a systematic analysis of the structural organization of bacterial cellulose (BC). We report four types of organization of the BC mass, produced by Gluconacetobacter hansenii that occur depending on cultivation conditions. Two of those, particularly, plywood type one and layers of micro-sized tubes were observed and described for the first time. In spherical BC particles (pellets), we found the layered structure that had previously been reported for planar geometry only. We suggest a model explaining why layers form in BC films and attempt to reveal the impact of different factors on the BC microscale morphology. We assume that the main factor that has direct impact on the type of structure formed is the rate of BC mass accumulation.
Competing Interests: Declaration of Competing Interest The authors declare that they have no conflict of interest
(Copyright © 2020 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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