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Three-Dimensional Organization of Self-Encapsulating Gluconobacter oxydans Bacterial Cells
ACS Omega ( IF 3.7 ) Pub Date : 2017-11-20 00:00:00 , DOI: 10.1021/acsomega.7b01282 Vi Khanh Truong 1 , Chris M Bhadra 1 , Andrew J Christofferson 2 , Irene Yarovsky 2 , Mohammad Al Kobaisi 1 , Christopher J Garvey 3 , Olga N Ponamoreva 4 , Sergey V Alferov 4 , Valery A Alferov 4 , Palalle G Tharushi Perera 1 , Duy H K Nguyen 1 , Ričardas Buividas 1 , Saulius Juodkazis 1 , Russell J Crawford 2 , Elena P Ivanova 1
ACS Omega ( IF 3.7 ) Pub Date : 2017-11-20 00:00:00 , DOI: 10.1021/acsomega.7b01282 Vi Khanh Truong 1 , Chris M Bhadra 1 , Andrew J Christofferson 2 , Irene Yarovsky 2 , Mohammad Al Kobaisi 1 , Christopher J Garvey 3 , Olga N Ponamoreva 4 , Sergey V Alferov 4 , Valery A Alferov 4 , Palalle G Tharushi Perera 1 , Duy H K Nguyen 1 , Ričardas Buividas 1 , Saulius Juodkazis 1 , Russell J Crawford 2 , Elena P Ivanova 1
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Self-organized bacteria have been the subject of interest for a number of applications, including the construction of microbial fuel cells. In this paper, we describe the formation of a self-organized, three-dimensional network that is constructed using Gluconobacter oxydans B-1280 cells in a hydrogel consisting of poly(vinyl alcohol) (PVA) with N-vinyl pyrrolidone (VP) as a cross-linker, in which the bacterial cells are organized in a particular side-by-side alignment. We demonstrated that nonmotile G. oxydans cells are able to reorganize themselves, transforming and utilizing PVA–VP polymeric networks through the molecular interactions of bacterial extracellular polysaccharide (EPS) components such as acetan, cellulose, dextran, and levan. Molecular dynamics simulations of the G. oxydans EPS components interacting with the hydrogel polymeric network showed that the solvent-exposed loops of PVA–VP extended and engaged in bacterial self-encapsulation.
中文翻译：
自封装氧化葡糖杆菌细菌细胞的三维组织
自组织细菌一直是许多应用领域感兴趣的主题，包括微生物燃料电池的构建。在本文中，我们描述了使用氧化葡糖杆菌B-1280 细胞在由聚乙烯醇 (PVA) 和N-乙烯基吡咯烷酮 (VP)组成的水凝胶中构建的自组织三维网络的形成交联剂，其中细菌细胞以特定的并排排列方式组织。我们证明，不动的G. oxydans细胞能够自我重组，通过细菌胞外多糖 (EPS) 成分（如乙酰、纤维素、右旋糖酐和果聚糖）的分子相互作用来转化和利用 PVA-VP 聚合物网络。G. oxydans EPS 成分与水凝胶聚合物网络相互作用的分子动力学模拟表明，PVA-VP 的溶剂暴露环延伸并参与细菌的自我封装。
更新日期：2017-11-20
中文翻译：
自封装氧化葡糖杆菌细菌细胞的三维组织
自组织细菌一直是许多应用领域感兴趣的主题，包括微生物燃料电池的构建。在本文中，我们描述了使用氧化葡糖杆菌B-1280 细胞在由聚乙烯醇 (PVA) 和N-乙烯基吡咯烷酮 (VP)组成的水凝胶中构建的自组织三维网络的形成交联剂，其中细菌细胞以特定的并排排列方式组织。我们证明，不动的G. oxydans细胞能够自我重组，通过细菌胞外多糖 (EPS) 成分（如乙酰、纤维素、右旋糖酐和果聚糖）的分子相互作用来转化和利用 PVA-VP 聚合物网络。G. oxydans EPS 成分与水凝胶聚合物网络相互作用的分子动力学模拟表明，PVA-VP 的溶剂暴露环延伸并参与细菌的自我封装。
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