在工业电池废弃物溶液中应用表面工程重组Escherichia coli,用于回收
Jaehoon Jeong1, Vidhya Selvamani1, Murali Kannan Maruthamuthu1
1Department of Chemical Engineering, University of Ulsan, Namgu, Ulsan 44610, Republic of Korea.
Journal of industrial microbiology & biotechnology
|April 4, 2024
概括
工程细菌现在可以选择性地吸附和回收,使用一种新的细胞表面显示. 这一突破为从环境来源和工业废水中回收提供了一种可持续的方法.
科学领域:
- 生物技术是生物技术.
- 环境工程 环境工程
- 材料科学 材料科学 材料科学
背景情况:
- 是现代技术的关键元素,特别是在电池中.
- 需要有效和环保的回收方法.
- 细菌细胞表面显示为生物分子呈现和环境应用提供了一个有前途的平台.
研究的目的:
- 为选择性吸附和回收而设计大肠杆菌.
- 通过显示结合的多个副本来优化吸附.
- 证明使用工程细菌从工业废水中回收的可行性.
主要方法:
- 大肠杆菌的基因工程通过OmpC蛋白在细胞表面显示结合 (LBP1).
- 构建和显示LBP1的二度,三度和四度重复,以增强吸附.
- 评估影响重组菌株吸附的环境因素.
- 使用场发射扫描电子显微镜 (FE-SEM) 和X射线衍射 (XRD) 分析表面吸附的颗粒.
主要成果:
- 在大肠杆菌的表面上LBP1的成功显示.
- 由工程细菌证明了离子的选择性吸附.
- 提高了吸附能力,增加了LBP1的重复,特别是三元.
- 从模拟和实际的电池废水中成功回收,使用LBP1三分器显示大肠杆菌.
结论:
- 细菌细胞表面显示是一种有效的策略,用于设计微生物进行选择性吸附.
- 重复显示LBP1显著提高回收效率.
- 工程化大肠杆菌具有从工业废水中可持续回收的潜力.
相关概念视频
03:00Electrolysis
26.3K
In a galvanic cell, the electrical work is done by a redox system on its surroundings as electrons produced by the spontaneous redox reactions are transferred through an external circuit. Alternatively, an external circuit does work on a redox system by imposing a voltage sufficient to drive an otherwise nonspontaneous reaction in a process known as electrolysis. For instance, recharging a battery involves the use of an external power source to drive the spontaneous (discharge) cell reaction in...
26.3K
01:08Electrodeposition
633
Electrodeposition is a technique used to separate an analyte from interferents by electrochemical processes. Here, the analyte is a metal ion that can be deposited on an electrode immersed in the sample solution. The electrochemical setup consists of an anode and a cathode. When an electric current is applied to the setup, oxidation occurs at the anode. At the cathode, which consists of a large metal surface, metal ions undergo reduction and deposit onto the surface.
Electrodeposition can...
Electrodeposition can...
633