人工碳纳米线集群和Cyt c之间的接口电子传输:使甲基生成的电子运输成为可能
Tengyu Zhang1, Pengshuai Zhang2, Jingxin Zhang2
1China-UK Low Carbon College, Shanghai Jiao Tong University, Shanghai 201306, China; School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China.
Water research
|November 21, 2025
概括
人工碳纳米线集群 (ACNCs) 促进微生物电子转移,以增强无氧消化. 这种导电网络通过优化细胞染色体c的功能来改善合成代谢和甲化速率.
科学领域:
- 微生物学 微生物学
- 电化学 电化学 电化学
- 材料科学 材料科学 材料科学
背景情况:
- 通过微生物纳米线和细胞染色体c (Cyt c) 的细胞间电子转移对于无氧消化至关重要,但在微生物基因组中是有限的.
- 人工碳纳米线集群 (ACNCs) 是为了克服这一局限性而开发的.
研究的目的:
- 从塑料/泥前体中设计ACNC,以支持微生物殖民和电子运输.
- 与生物炭 (BC) 和碳纳米管 (CNT) 相比,评估ACNCs在促进Cytc电子转移方面的效率.
主要方法:
- 循环电压测量 (CV) 和电化学阻抗光谱 (EIS) 用于电容和电子转移分析.
- 能源水平对齐的莫特-肖特基分析.
- 循环二重化和EPR光谱用于Cytc结构分析.
- 微生物群落的元基因组学分析.
主要成果:
- 与BC和CNT相比,ACNCs与Cytc进行了增强的界面电子转移.
- 观察到ACNC和Cytc之间的能量水平对齐,导致电流响应增加.
- ACNCs诱导了Cytc的结构变化,优化了电子转移方向.
- 补充ACNC丰富了电活性细菌,增加了Methanothrix的丰富性和多种细胞体表达.
结论:
- 在无氧消化过程中,ACNCs有效地支持微生物电子转移和合成代谢.
- 与BC相比,ACNC显著提高了甲化率,达到123%的升高.
- 已开发的ACNC为提高无氧消化效率提供了一个有希望的策略.
关键词:
无氧消化消化无氧消化人工碳纳米线集群集群.Cyt c cyt cyt cyt cyt cyt cyt cyt cyt cyt cyt cyt cyt cyt cyt cyt cyt cyt cyt cyt cyt cyt cyt cyt cyt cyt cyt cyt cyt cyt cyt cyt cyt cyt cyt cyt cyt cyt cyt cyt cyt cyt cyt cyt cyt cyt cyt cyt cyt cyt cyt cyt cyt cyt cyt cyt cyt cyt cyt介面电子传输的介面电子传输.甲化是指甲化.更多相关视频
相关概念视频
Electron Transport Chains
111.4K
The final stage of cellular respiration is oxidative phosphorylation that consists of two steps: the electron transport chain and chemiosmosis. The electron transport chain is a set of proteins found in the inner mitochondrial membrane in eukaryotic cells. Its primary function is to establish a proton gradient that can be used during chemiosmosis to produce ATP and generate electron carriers, such as NAD+ and FAD, that are used in glycolysis and the citric acid cycle.
The ETC is comprised of...
The ETC is comprised of...
111.4K
Carbon-dioxide Fixation
602
Carbon dioxide fixation in prokaryotes enables the assimilation of inorganic carbon into organic molecules, supporting biosynthetic pathways, sustaining ecosystems, and contributing to the global carbon cycle. It also has industrial applications in carbon capture and bioproduct synthesis. Autotrophic organisms rely on this process to utilize CO₂ as a carbon source in diverse environments.The Calvin CycleThe Calvin cycle is the most widespread carbon fixation mechanism, primarily used by...
602
Interfacial Electrochemical Methods: Overview
785
Interfacial electrochemical methods focus on the phenomena occurring at the boundary between an electrode and a solution, as opposed to bulk methods that concentrate on the solution's overall properties. These interfacial methods are classified as either static or dynamic based on the presence of a nonzero current in the electrochemical cell and the consistency of analyte concentrations. Static methods, such as potentiometry, measure the cell's potential without any significant current...
785
Chemiosmosis
111.3K
Oxidative phosphorylation is a highly efficient process that generates large amounts of adenosine triphosphate (ATP), the basic unit of energy that drives many cellular processes. Oxidative phosphorylation involves two processes— the electron transport chain and chemiosmosis.
Electron Transport Chain
The electron transport chain involves a series of protein complexes on the inner mitochondrial membrane that undergo a series of redox reactions. At the end of this chain, the electrons...
Electron Transport Chain
The electron transport chain involves a series of protein complexes on the inner mitochondrial membrane that undergo a series of redox reactions. At the end of this chain, the electrons...
111.3K
Chemiosmosis and ATP Synthesis
1.8K
The electron transport chain is a critical component of cellular respiration, occurring in the inner mitochondrial membrane. It facilitates the transfer of high-energy electrons from reduced cofactors NADH and FADH₂ to molecular oxygen, the final electron acceptor. This transfer of electrons through a series of protein complexes is tightly coupled to the translocation of protons across the membrane, generating a proton gradient essential for ATP synthesis.Electron Flow and Proton...
1.8K


