Article
Engineering, Environmental
Na Chu, Qinjun Liang, Wen Hao, Yong Jiang, Peng Liang, Raymond Jianxiong Zeng
Summary: This paper reviews cutting-edge studies on strategies to create high performance microbial electrochemical biosensors, focusing on different sensing elements including bioanode and abiotic cathode elements. These sensors have been successfully applied in the laboratory to detect various toxicants, with recent advancements in biocathode sensing elements highlighted for their ability to solve issues of low sensitivity and high false-negative rates in water biotoxicity monitoring. Discussions on limitations and potential solutions associated with the practical application of microbial electrochemical sensors for water biotoxicity monitoring are also emphasized.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Agricultural Engineering
Xuejiao Qi, Xuan Jia, Yong Wang, Pei Xu, Mingxiao Li, Beidou Xi, Yujiao Zhao, Yusen Zhu, Fanhua Meng, Meiying Ye
Summary: The rapid startup of carbon dioxide reduction-methanogenic microbial electrosynthesis is crucial for its industrial application, and the development of cathode biofilm is the key to its industrialization. A new startup method has been developed, shortening the startup time, reducing charge transfer resistance, and enriching electroactive bacteria.
BIORESOURCE TECHNOLOGY
(2022)
Article
Agricultural Engineering
Na Chu, Qinjun Liang, Wen Hao, Yong Jiang, Raymond Jianxiong Zeng
Summary: The development of low-cost biosensors for water monitoring is expected to reduce potential risks from contamination accidents. This study reported a novel micro-microbial electrochemical sensor using combined bioanode and biocathode as the sensing element. By adjusting the ratio of bioanode to biocathode, a lower power generation can be achieved with a similar or even higher toxic response. Additionally, the voltage output is affected by both flow rate and acetate concentration.
BIORESOURCE TECHNOLOGY
(2021)
Article
Engineering, Environmental
Chao Li, Weihua He, DanDan Liang, Yan Tian, Ravi Shankar Yadav, Da Li, Junfeng Liu, Yujie Feng
Summary: The periodic anaerobic and starving treatment effectively regulated the operation of microbial electrochemical systems by eliminating filamentous bulking, rebuilding an electrochemically active cathode biofilm, increasing current density and power density, reducing effluent chemical oxygen demand, as well as enhancing biomass adhesion ratio and biomass specific biocatalytic activity. It also decreased oxygen diffusion resistance and charge transfer resistance, maintaining a functional cathodic bio-community.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Biophysics
Yue Wu, Qing Du, Yuxuan Wan, Qian Zhao, Nan Li, Xin Wang
Summary: This study demonstrates the possibility of reverse bioelectron transfer in Geobacter-dominated electroactive biofilms, achieving a high efficiency of dissimilatory nitrate reduction to ammonia (DNRA). The use of constant current is found to be more effective in maintaining Geobacter on the cathode, and the prevalence of DNRA at constant current is shown through gene transcription analysis. Metatranscriptomics reveals potential electron uptake mechanisms in the biofilms.
BIOSENSORS & BIOELECTRONICS
(2022)
Article
Chemistry, Physical
Zhengzhong Mao, Yi Sun, Yong Zhang, Xiangrong Ren, Zhufan Lin, Shaoan Cheng
Summary: The study found that the constant voltage method is beneficial for improving the performance of biocathode methane production, mainly due to the effect of its low charge transfer resistance.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Electrochemistry
Giulia Moro, Vania Brissos, Chiara Zanardi, Ligia O. Martins, Felipe Conzuelo
Summary: The study investigates the redox proteins over an electrode surface. It demonstrates the influence of pH on the redox potential and the need for initial reductive activation for maximum bioelectrocatalytic activity. The study also describes the effect of chloride ions on the bioelectrocatalytic reaction.
ELECTROCHIMICA ACTA
(2023)
Review
Microbiology
Hui Wang, Pengxiang Zhai, Xizi Long, Jianghang Ma, Yu Li, Bo Liu, Zhiqiang Xu
Summary: This study reviews the mechanisms, influencing factors, and characteristics of electroactive microorganisms acting as biocatalysts on biocathodes. It discusses the electron distribution and competition between microbial electrodes and heavy metals in biocathodes. The findings show that biocathodes can reduce the electrochemical overpotential in heavy metal reduction, enabling efficient treatment of heavy metal wastewater.
FRONTIERS IN MICROBIOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Heng Zhu, Qimeng Yang, Depei Liu, Yu Du, Shicheng Yan, Min Gu, Zhigang Zou
Summary: A newly developed electrochemical approach allows direct protonation of oxide particles in a neutral electrolyte, enabling precise functionalization of the particle surface without the need for external electrical connections. By following a particle-by-particle surface protonation mechanism, this method unlocks the potential of semiconductor oxides for various applications.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Environmental Sciences
Ting Zhao, Beizhen Xie, Yue Yi, Yuxuan Zang, Hong Liu
Summary: This study investigated the effects of periodic polarity reversal (PPR) and polarity reversal once only (PRO) on the long-term performances of denitrifying BESs. The results showed that the PPR-BESs had higher nitrate removal efficiency, while the performance of PRO-BESs gradually decreased.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Chemistry, Multidisciplinary
Udishnu Sanyal, Simuck F. Yuk, Katherine Koh, Mal-Soon Lee, Kelsey Stoerzinger, Difan Zhang, Laura C. Meyer, Juan A. Lopez-Ruiz, Abhi Karkamkar, Jamie D. Holladay, Donald M. Camaioni, Manh-Thuong Nguyen, Vassiliki-Alexandra Glezakou, Roger Rousseau, Oliver Y. Gutierrez, Johannes A. Lercher
Summary: The hydrogenation of benzaldehyde to benzyl alcohol is significantly promoted by the presence of polar co-adsorbates like substituted phenols, facilitated by external potential. These co-adsorbates enhance the hydrogenation rate by polarizing the carbonyl group and increasing the likelihood of forming a transition state for H addition, leading to a faster hydrogenation route involving phenol as a conduit for proton addition.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Physical
Maolin Zhang, Kepeng Song, Chen Liu, Zedong Zhang, Wen-Qing He, Hao Huang, Jialei Liu
Summary: Solar-driven electrochemical NO3- reduction reaction (NO3-RR) is a clean and sustainable strategy to convert pollutant NO3- in wastewater to valuable NH3. Cobalt oxides-based catalysts have shown potential for NO3-RR, but catalyst design can further improve their efficiency. In this study, Au nanocrystals were used to enhance the efficiency of NO3-RR to NH3 by tuning the surface structure of Co3O4. The Au nanocrystals-Co3O4 catalyst exhibited significantly higher performance compared to small Au species and pure Co3O4 catalysts. With the use of solar cells and an anion exchange membrane electrolyzer, an unassisted solar-driven NO3-RR to NH3 prototype was successfully realized.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Engineering, Environmental
Hengduo Xu, Yanqing Sheng, Wenjing Wang, Qunqun Liu, Zhaoran Li
Summary: A conductive cathodic biofilm was established through in-situ synthesis and immobilization of biogenic palladium nanoparticles (Pd-NPs) for chloramphenicol (CAP) removal. Compared to the control biocathode, the Pd-fabricated biocathode showed enhanced extracellular electron transfer, resulting in increased CAP removal rates.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Environmental Sciences
Samuel Raj Babu Arulmani, Junxi Dai, Han Li, Zhenxin Chen, Weimin Sun, Hongguo Zhang, Jia Yan, Sabariswaran Kandasamy, Tangfu Xiao
Summary: This study explores the possibility of simultaneous metal sulfide precipitation and electricity production using a microbial fuel cell (MFC). The MFC with Citrobacter freundii SR10 as the biocathode showed high efficiency in removing sulfate and reducing antimony (Sb), with a maximum power density of 1652.9 mW/m3. The results confirm the feasibility and effectiveness of this method.
Article
Environmental Sciences
Su-Hao Chen, Zheng-Tao Li, He-Ping Zhao
Summary: Bioelectrochemical system is a promising approach for enhanced bio-dechlorination, but the mechanism of electron transfer in the dechlorinating consortium is still controversial. In this study, bioelectrochemical systems with cathode potential settings at -0.30 V were used for trichloroethylene reduction. The results showed that electrostimulation significantly improved the dechlorination rate and enriched electroactive and dechlorinating populations on the cathode. Metagenomic and qPCR analyses revealed that direct and indirect electron transfer played important roles in the dechlorination process. Overall, this study provides insights into the mechanisms of dechlorination enhancement in bioelectrochemical systems.
ENVIRONMENTAL RESEARCH
(2023)
Review
Food Science & Technology
Duo Liang, Wentao Su, Mingqian Tan
Summary: The use of microfluidic intestine-on-a-chip offers a novel way to mimic human intestinal pathophysiology, potentially reducing animal testing. However, research on the effect of bioactive food compounds on intestinal inflammation is still largely unexplored. Standardizing key parameters such as cell types and shear stress is essential for accurate modeling.
CRITICAL REVIEWS IN FOOD SCIENCE AND NUTRITION
(2022)
Article
Biochemistry & Molecular Biology
Heng Wu, Mengyao Cui, Xu Yang, Yiliang Liu, Jingting Wang, Lixia Zhang, Guoqiang Zhan, Yihua Zhao
Summary: A toxicity monitoring microbial system (TMMS) with a nitrifying biofilm as a sensing element and cathode oxygen reduction as an electrical signal was successfully developed for trichloroacetaldehyde (TCAL) detection. High-throughput sequencing analysis revealed that the TMMS consisted of autotrophic/heterotrophic nitrifying and denitrifying microorganisms. Furthermore, a symbiotic relationship network analysis showed that unclassified_Comamonadaceae and unclassified_Xanthobacteraceae were key nodes for maintaining the interaction between autotropic and heterotrophic nitrifying bacteria. The study also found that the electron transfer process under TCAL stress primarily relied on ferredoxin and cytochromes, resulting in changes in electrical signal output due to decreased abundance of functional enzymes involved in nitrification.
BIOELECTROCHEMISTRY
(2022)
Article
Biophysics
Jingting Wang, Guoqiang Zhan, Xu Yang, Decong Zheng, Xiaoyun Li, Lixia Zhang, Tianfang Huang, Xiaomei Wang
Summary: This study developed an electrochemical biosensor based on electroactive nitrite-oxidizing bacteria, which exhibited rapid response, high sensitivity, wide detection range, and anti-interference properties. The biosensor could accurately detect nitrite within 3 minutes in the range of 0.3-100 mg/L and performed well in wetlands and rivers.
BIOSENSORS & BIOELECTRONICS
(2022)
Review
Green & Sustainable Science & Technology
Kan Kan, Maxime Binama, Huixiang Chen, Yuan Zheng, Daqing Zhou, Wentao Su, Alexis Muhirwa
Summary: This article provides a comprehensive review of the cavitation dynamics and influencing parameters of pump as turbines (PATs), with a focus on their performance in small-scale hydroelectric power plants. The study reveals that the reverse mode of PATs is more susceptible to cavitation, while the conventional mode leads to more damages. Modifying the geometric design parameters of PATs can significantly improve their cavitation performance, which requires further research for the reverse operating mode.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2022)
Article
Food Science & Technology
Yannan Chen, Wentao Su, Shanshan Tie, Lijuan Zhang, Mingqian Tan
Summary: This review highlights the construction of astaxanthin-based delivery systems and the potential benefits in precision nutrition. Well-designed delivery systems can enhance the stability of astaxanthin during food processing and digestion, and can achieve precision nutrition effects for specific populations.
TRENDS IN FOOD SCIENCE & TECHNOLOGY
(2022)
Review
Green & Sustainable Science & Technology
Heng Wu, Junmei Zheng, Jiawen Wang, Anjie Li, Shuo Sun, Huaiwen Zhang, Yiqing Yao, Guoqiang Zhan
Summary: Nitrogen pollution is a major cause of water eutrophication, and the difficulty of nitrogen removal in low-carbon wastewater has a significant impact on the environment and human health. The biological nitrogen removal process based on solid carbon sources (SCSs) has gained attention, but lacks specific classifications. This study classified it into solid-phase denitrification (SPD) process and solid-phase simultaneous nitrification and denitrification (SPSND) process from the perspective of target pollutants, and reviewed the research progress in recent years.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Environmental Sciences
Heng Wu, Anjie Li, Xu Yang, Jingting Wang, Yiliang Liu, Guoqiang Zhan
Summary: Nitrogen pollution is a major cause of water eutrophication, posing a significant threat to the ecological environment and human health due to the difficulty of nitrogen removal in low-carbon wastewater. This paper reviews the progress, hotspots, and challenges of the solid-phase denitrification (SPD) process based on different solid carbon sources (SCSs), highlighting the potential of blended SCSs and their impact on denitrification performance.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Nuan Yang, Huiqin Luo, Ming Liu, Xia Xiong, Xiaojun Jin, Guoqiang Zhan
Summary: In this study, the introduction of novel electroactive nitrifying/denitrifying bacteria (ENDB) into microbial fuel cells (MFCs) resulted in efficient nitrate removal, current increase, and coupling of mixotrophic denitrification and electroactive anodic nitrification. The microbial community shift and promotion of electron transfer process were confirmed by various analyses. This study demonstrates the importance of ENDB biofilms in enhancing pollutant removal and power recovery in MFCs.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Engineering, Biomedical
Duo Liang, Chenyue Liu, Yu Li, Caiyun Wu, Yuling Chen, Mingqian Tan, Wentao Su
Summary: A large-scale engineering preparation strategy has been developed to produce synthetic probiotic membrane vesicles (FX-MVs) for encapsulating fucoxanthin, which can be used for treating colitis. The engineering membrane vesicles showed a significantly higher yield and richer protein content compared to naturally secreted vesicles. FX-MVs exhibited improved gastrointestinal stability of fucoxanthin and effectively inhibited oxidative damage and inflammatory response in vivo.
Article
Engineering, Environmental
Jingting Wang, Chong Dong, Qiquan Li, Xu Yang, Daping Li, Lixia Zhang, Yifeng Zhang, Guoqiang Zhan
Summary: Water toxicity detection is an important method for evaluating water environmental quality. This study developed a novel, rapid and interference-resistant detection method using an electrochemical biosensor. The proof-of-concept study showed promising results, indicating that this method could be a beneficial supplement to conventional water quality detection.
Article
Agricultural Engineering
Nuan Yang, Huiqin Luo, Xia Xiong, Ming Liu, Guoqiang Zhan, Xiaojun Jin, Wei Tang, Ziai Chen, Yunhui Lei
Summary: In this study, the use of spiral-stairs-like/rolled carbon felt configurations as three-dimensional (3D) bioanode in air-cathode microbial fuel cells (ACMFCs) showed significantly higher power densities and better removal efficiency of pollutants compared to traditional flat carbon felt anodes. The coulombic efficiency of the 3D anodes was also higher. The results suggest that three-dimensional anodes with active biofilm have great potential in creating scalable MFCs-based wastewater treatment systems.
BIORESOURCE TECHNOLOGY
(2023)
Article
Food Science & Technology
Meng Guo, Weina Cui, Yuanchao Li, Siyuan Fei, Chaofan Sun, Mingqian Tan, Wentao Su
Summary: In this study, a microfluidic strategy for the preparation of astaxanthin nano-encapsulation system was proposed. The resulting nano-encapsulation system showed better stability and protection effect compared to free astaxanthin under different conditions.
FOOD RESEARCH INTERNATIONAL
(2023)
Article
Agriculture, Multidisciplinary
Kuiyou Wang, Shasha Huang, Shanghua Xing, Shida Wu, Hongliang Li, Xu Zhong, Xin Na, Mingqian Tan, Wentao Su
Summary: This study proposes an innovative approach using microfluidic chip to create core-shell microcapsules that contain Lactobacillus plantarum Lp90, which aims to enhance the stability of probiotics in fruit juices. These microcapsules provide a robust barrier and significantly improve the probiotic stability compared to free probiotics, offering a promising solution for probiotic delivery in functional fruit juice beverages.
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
(2023)
Review
Food Science & Technology
Hui Wang, Cong Xu, Mingqian Tan, Wentao Su
Summary: Bioengineered gut chips accurately replicate important features of the intestinal microenvironment, making them valuable tools in nutrition research and food technology. This review provides an overview of different approaches to constructing gut-on-chip platforms and explores their applications and potential in studying nutrition metabolism and carotenoid transport.
CRITICAL REVIEWS IN FOOD SCIENCE AND NUTRITION
(2023)
Article
Biochemistry & Molecular Biology
Shanshan Tie, Siyuan Xiang, Yannan Chen, Fengzhi Qiao, Weina Cui, Wentao Su, Mingqian Tan
Summary: In this study, food-grade nanocarriers were prepared using a one-pot method, which exhibited controllable sizes and good antioxidant capacity. The nanocarriers also showed inhibitory effects on cell damage and could be used for delivering active ingredients.
