Plug-and-play modular biobatteries with microbial consortia
Plug-and-play modular biobatteries with microbial consortia
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DOI：
10.1016/j.jpowsour.2022.231487
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发表时间：
2022-04-20
影响因子：
9.2
通讯作者：
Choi，Seokheun
中科院分区：
文献类型：
--
作者：
Elhadad，Anwar;Liu，Lin;Choi，Seokheun
最近，一种含有多种细菌的生物电池通过它们的协同作用展示了持久和完全自我可持续的发电能力。将个体物种限制在单独的空间，避免了邻近物种之间的不平衡竞争，最大限度地提高了它们的合作互动，延长了电池寿命。然而，尽管具有巨大的潜力和前景，但空间工程微生物联合体从未以系统和可控的方式充分扩展以立即应用于电力。此外，与外部电极具有无缝有效电耦合的活微生物的空间组织仍然是一个重大挑战。在这项工作中，我们为创建一个可微加工和可扩展的生物电池平台奠定了基础，该平台允许控制3D多物种微生物联盟。微生物注入聚合物溶液的一层一层电聚合沉积创造了垂直多层导电的微生物结构，其中单个物种被单独限制在准固态聚合物层中，最终在生物-非生物界面上提供有效的耦合，并为物种之间的交叉喂养相互作用提供有效的离子环境。集成的模块化“即插即用”生物电池平台为其串行和并行连接提供了简单实用的方法。通过连接多个生物电池模块，成功运行了实际的无线遥测系统，确保了该电源在实际无线传感器网络应用中的实际功效。
Recently, a bacteria-powered biobattery containing multiple species demonstrated long-lasting and fully self-sustainable power generation through their synergistic interaction. Confining individual species in separate spaces avoids unbalanced competition between neighboring species, maximizing their cooperative interaction to extend battery life. Despite the vast potential and promise, however, a spatially engineered microbial consortium has never been sufficiently scaled in a systematic and controllable manner for immediate power applications. Moreover, the spatial organization of living microorganisms having their seamless and effective electrical coupling with the external electrode remains a significant challenge. In this work, we establish the groundwork for creating a microfabricable and scalable biobattery platform that allows control of a 3D multispecies microbial consortium. A layer-by-layer electropolymerization deposition of microbial-infused polymer solutions creates a vertically multi-layered, conductive, microbial structure where individual species are separately confined in quasi-solid-state polymer layers, ultimately providing effective coupling at the biotic-abiotic interface and efficient ionic environments for cross-feeding interactions between species. An integrated modular “plug-and-play” biobattery platform provides a simple and practical approach for its serial and parallel connections. By connecting multiple biobattery modules, an actual wireless telemetry system was successfully operated, ensuring the practical efficacy of this power supply for real-world wireless sensor network applications.