20.500.12556/DKUM-87370 GO-enabled bacterial cellulose membranes by multistep, in situ loading effect of bacterial strain and loading pattern on nanocomposite properties This paper presents the results of research on the preparation and properties of GO/BC nanocomposite from bacterial cellulose (BC) modified with graphene oxide (GO) using the in situ method. Two bacterial strains were used for the biosynthesis of the BC: Komagataeibacter intermedius LMG 18909 and Komagataeibacter sucrofermentans LMG 18788. A simple biosynthesis method was developed, where GO water dispersion was added to reinforced acetic acid-ethanol (RAE) medium at concentrations of 10 ppm, 25 ppm, and 50 ppm at 24 h and 48 h intervals. As a result, a GO/BC nanocomposite membrane was obtained, characterized by tensile strength greater by 150% as compared with the pure BC (̴ 50 MPa) and lower volume resistivity of ~4 ∙ 109 Ω × cm. Moreover, GO addition increases membrane thickness up to ~10% and affects higher mass production, especially with low GO concentration. All of this may indicate the possibility of using GO/BC membranes in fuel cell applications. bacterial cellulose graphene oxide nanocomposite structural analysis bakterijska celuloza grafen oksid nanokompoziti analiza konstrukcij true true true MDPI Angleški jezik Slovenski jezik https://www.mdpi.com/journal/materials Članek v reviji 2024-03-13 13:28:16 2024-03-13 13:52:05 2024-04-04 08:08:40 0000-00-00 00:00:00 2023 0 0 Str. 1-18 Št. 3, št. članka 1296 Letn. 16 2023 0000-00-00 Zaloznikova Objavljeno NiDoloceno 2022-12-06 2023-01-31 2023-02-02 577:677.46 140669187 10.3390/ma16031296 1996-1944 Gabrys-2023-GO-Enabled_Bacterial_Cellulose_Mem.pdf Gabrys-2023-GO-Enabled_Bacterial_Cellulose_Mem.pdf 1 3F65F3A478B9861B553A5DBCDF49477B c79225205f8df22a9d1167ef775fe4698d4ae8fd26c9d4b3186b0dc48532ae1c 3430b0bd-e138-11ee-8bfd-00155d000105 https://dk.um.si/Dokument.php?lang=slv&id=176839 https://doi.org/10.3390/ma16031296 0 5c1ec09a-e138-11ee-8bfd-00155d000105 https://dk.um.si/Dokument.php?lang=slv&id=176840 Fakulteta za strojništvo Fakulteta za naravoslovje in matematiko 0 0 0