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Algal biomass derived biochar anode for efficient extracellular electron uptake from

Yan-Shan Wang, Dao-Bo Li, Feng Zhang, Zhong-Hua Tong, Han-Qing Yu

《环境科学与工程前沿（英文）》 2018年 第12卷 第4期 doi: 10.1007/s11783-018-1072-5

摘要：

Algal biochar anode produced higher biocurrent compared with graphite plate anode.

Algal biochar exhibited stronger electrochemical response to redox mediators.

Algal biochar showed excellent adsorption to redox mediators.

关键词： Algal biochar     Anode material     Electrochemical activity     Extracellular electron transport     Waste resource utilization    

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Mechanisms behind the accelerated extracellular electron transfer in

Feng ZHANG,Shengsong YU,Jie LI,Wenwei LI,Hanqing YU

《环境科学与工程前沿（英文）》 2016年 第10卷 第3期   页码 531-538 doi: 10.1007/s11783-015-0793-y

摘要： Modification of electrode surface with carboxylic acid terminated alkanethiol self-assembled monolayers (SAMs) has been found to be an effective approach to improve the extracellular electron transfer (EET) of electrochemically active bacteria (EAB) on electrode surface, but the underlying mechanism behind such enhanced EET remains unclear. In this work, the gold electrodes modified by mercapto-acetic acid and mercapto-ethylamine (Au-COOH, Au-NH ) were used as anodes in microbial electrolysis cells (MECs) inoculated with DL-1, and their electrochemical performance and the bacteria-electrode interactions were investigated. Results showed that the redox reaction occurred on the Au-NH with a higher rate and a lower resistance than that on the Au or the Au-COOH. Both the MECs with the Au-COOH and Au-NH anodes exhibited a higher current density than that with a bare Au anode. The biofilm formed on the Au-COOH was denser than that on bare Au, while the biofilm on the Au-NH had a greater thickness, suggesting a critical role of direct EET in this system. This work suggests that functional groups such as –COOH and-NH could promote electrode performance by accelerating the direct EET of EAB on electrode surface.

关键词： biofilm     extracellular electron transfer (EET)     Geobacter sulfurreducens DL-1     gold     self-assembled monolayers    

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Simultaneous Feammox and anammox process facilitated by activated carbon as an electron shuttle for autotrophic

《环境科学与工程前沿（英文）》 2022年 第16卷 第7期 doi: 10.1007/s11783-021-1498-z

摘要：

• The autotrophic nitrogen removal combining Feammox and Anammox was achieved.

关键词： Feammox     Anammox     Extracellular electron transfer     Electron shuttle     Activated carbon    

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Enhancement of extracellular Cr(VI) reduction for anammox recovery using hydrazine: performance, pathways

《环境科学与工程前沿（英文）》 2023年 第17卷 第9期 doi: 10.1007/s11783-023-1715-z

摘要：

● N2H4 addition enhanced and recovered anammox performance under Cr(VI) stress.

关键词： Extracellular Cr(VI) reduction     Electron transfer     Anammox     Hydrazine     Cr(VI) inhibition    

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Integrated energy view of wastewater treatment: A potential of electrochemical biodegradation

《环境科学与工程前沿（英文）》 2022年 第16卷 第4期 doi: 10.1007/s11783-021-1486-3

摘要：

• Energy is needed to accelerate the biological wastewater treatment.

关键词： Biological wastewater treatment     Integrated energy view     Electroactive bacteria     Extracellular electron transfer    

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Electroactivity of the magnetotactic bacteria AMB-1 and MSR-1

《环境科学与工程前沿（英文）》 2023年 第18卷 第4期 doi: 10.1007/s11783-024-1808-3

摘要：

● The first study of electrochemically active magnetotactic bacteria.

关键词： Magnetotactic bacteria     Magnetospirillum magneticum     Magnetospirillum gryphiswaldense     Extracellular electron transfer     Microbial fuel cells    

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Decellularized extracellular matrix mediates tissue construction and regeneration

《医学前沿（英文）》 2022年 第16卷 第1期   页码 56-82 doi: 10.1007/s11684-021-0900-3

摘要： Contributing to organ formation and tissue regeneration, extracellular matrix (ECM) constituents provide tissue with three-dimensional (3D) structural integrity and cellular-function regulation. Containing the crucial traits of the cellular microenvironment, ECM substitutes mediate cell–matrix interactions to prompt stem-cell proliferation and differentiation for 3D organoid construction in vitro or tissue regeneration in vivo. However, these ECMs are often applied generically and have yet to be extensively developed for specific cell types in 3D cultures. Cultured cells also produce rich ECM, particularly stromal cells. Cellular ECM improves 3D culture development in vitro and tissue remodeling during wound healing after implantation into the host as well. Gaining better insight into ECM derived from either tissue or cells that regulate 3D tissue reconstruction or organ regeneration helps us to select, produce, and implant the most suitable ECM and thus promote 3D organoid culture and tissue remodeling for in vivo regeneration. Overall, the decellularization methodologies and tissue/cell-derived ECM as scaffolds or cellular-growth supplements used in cell propagation and differentiation for 3D tissue culture in vitro are discussed. Moreover, current preclinical applications by which ECM components modulate the wound-healing process are reviewed.

关键词： decellularized extracellular matrix     3D culture     organoids     tissue repair    

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Biosorption of Cu(II) to extracellular polymeric substances (EPS) from

Xiangliang PAN, Jing LIU, Wenjuan SONG, Daoyong ZHANG

《环境科学与工程前沿（英文）》 2012年 第6卷 第4期   页码 493-497 doi: 10.1007/s11783-012-0416-9

摘要： Biosorption of extracellular polymeric substances (EPS) from sp. (cyanobacterium) with Cu(II) was investigated using fluorescence spectroscopy. Three fluorescence peaks were found in the excitation-emission matrix (EEM) fluorescence spectra of EPS. Fluorescence of peak A (Ex/Em= 275/452 nm) and peak C (Ex/Em= 350/452 nm) were originated from humic-like substances and fluorescence of peak B (Ex/Em= 275/338 nm) was attributed to protein-like substances. Fluorescence of peaks A, B, and C could be quenched by Cu(II). The effective quenching constants (lg K ) were 2.8–5.84 for peak A, 6.4–9.24 for peak B, and 3.48–6.68 for peak C, respectively. The values of lg K showed a decreasing trend with increasing temperature, indicating that the quenching processes were static in nature. The binding constants (lg K ) followed the order of peak A>peak B>peak C, implying that the humic-like substances in EPS have greater Cu(II) binding capacity than the protein-like substances. The binding site number, , in EPS-Cu(II) complexes for peaks A, B, and C was less than 1. This suggests the negative cooperativity between multiple binding sites and the presence of more than one Cu binding site.

关键词： biosorption     conditional binding constant     extracellular polymeric substances (EPS)     fluorescence quenching    

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Contributions of adsorption, bioreduction and desorption to uranium immobilization by extracellular polymeric

《环境科学与工程前沿（英文）》 2023年 第17卷 第9期 doi: 10.1007/s11783-023-1707-z

摘要：

● EPS immobilizes U(VI) via adsorption, bioreduction and desorption.

关键词： Adsorption     Bioreduction     Desorption     Kinetics     Isotherm     Uranium    

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The source and transport of bioaerosols in the air: A review

《环境科学与工程前沿（英文）》 2021年 第15卷 第3期 doi: 10.1007/s11783-020-1336-8

摘要：

• Emission of microbe from local environments is a main source of bioaerosols.

关键词： Bioaerosols     Diffusion     Source identification     Biogeography    

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precise-acting” strategies for improving anaerobic methanogenesis of organic waste: Insights from the electron

《环境科学与工程前沿（英文）》 2022年 第16卷 第6期 doi: 10.1007/s11783-021-1508-1

摘要： Methanogenesis is the last step in anaerobic digestion, which is usually a rate-limiting step in the biological treatment of organic waste. The low methanogenesis efficiency (low methane production rate, low methane yield, low methane content) substantially limits the development of anaerobic digestion technology. Traditional pretreatment methods and bio-stimulation strategies have impacts on the entire anaerobic system and cannot directly enhance methanogenesis in a targeted manner, which was defined as “broad-acting” strategies in this perspective. Further, we discussed our opinion of methanogenesis process with insights from the electron transfer system of syntrophic partners and provided potential targeted enhancing strategy for high-efficiency electron transfer system. These “precise-acting” strategies are expected to achieve an efficient methanogenesis process and enhance the bio-energy recovery of organic waste.

关键词： Methanogenesis     Anaerobic digestion     Enhancing strategy     Electron transfer     Organic waste    

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Insights into the electron transfer mechanisms of permanganate activation by carbon nanotube membrane

《环境科学与工程前沿（英文）》 2023年 第17卷 第9期 doi: 10.1007/s11783-023-1706-0

摘要：

● A CNT filter enabled effective KMnO4 activation via facilitated electron transfer.

关键词： KMnO4     Carbon nanotubes     Non-radical pathway     Electron transfer     Water treatment    

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Long acting carmustine loaded natural extracellular matrix hydrogel for inhibition of glioblastoma recurrence

《化学科学与工程前沿（英文）》 2022年 第16卷 第4期   页码 536-545 doi: 10.1007/s11705-021-2067-5

摘要： Many scientific efforts have been made to penetrate the blood-brain barrier and target glioblastoma cells, but the outcomes have been limited. More attention should be given to local inhibition of recurrence after glioblastoma resection to meet real medical needs. A biodegradable wafer containing the chemotherapeutics carmustine (1,3-bis(2-chloroethyl)-1-nitrosourea, BCNU) was the only local drug delivery system approved for clinical glioblastoma treatment, but with a prolonged survival time of only two months and frequent side effects. In this study, to improve the sustained release and prolonged therapeutic effect of drugs for inhibiting tumor recurrence after tumor resection, both free BCNU and BCNU- poly (lactic-co-glycolic acid) (the ratio of lactic acid groups to glycolic acid groups is 75/25) nanoparticles were simultaneously loaded into natural extracellular matrix hydrogel from pigskin to prepare BCNU gels. The hydrogel was injected into the resection cavity of a glioblastoma tumor immediately after tumor removal in a fully characterized resection rat model. Free drugs were released instantly to kill the residual tumor cells, while drugs in nanoparticles were continuously released to achieve a continuous and effective inhibition of the residual tumor cells for 30 days. These combined actions effectively restricted tumor growth in rats. Thus, this strategy of local drug implantation and delivery may provide a reliable method to inhibit the recurrence of glioblastoma after tumor resection in vivo.

关键词： BCNU     glioblastoma recurrence     tumor resection     nanoparticles     hydrogel    

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Influence of extracellular polymeric substances from activated sludge on the aggregation kinetics of

《环境科学与工程前沿（英文）》 2022年 第16卷 第2期 doi: 10.1007/s11783-021-1450-2

摘要：

• The NPs aggregation in the electrolyte solution is consistent with the DLVO theory.

关键词： Silver nanoparticles     Silver sulfide nanoparticles     Extracellular polymeric substances     Aggregation kinetics     Influence mechanisms    

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Kinetics and mechanisms of reactions for hydrated electron with chlorinated benzenes in aqueous solution

Haixia YUAN,Huxiang PAN,Jin SHI,Hongjing LI,Wenbo DONG

《环境科学与工程前沿（英文）》 2015年 第9卷 第4期   页码 583-590 doi: 10.1007/s11783-014-0691-8

摘要： The reactions between chlorinated benzenes (CBzs) and hydrated electron ( ) were investigated by the electron beam (EB) and laser flash photolysis (LFP) experiments. Under the EB irradiation, the effects of irradiation dose, initial concentration and the number of Cl atoms on the removal efficiencies were further examined. At 10 kGy, the removal efficiencies of mono-CB, 1,3-diCB, 1,2-diCB and 1,4-diCB were 41.2%, 87.2%, 84.0%, and 84.1%, respectively. While irradiation dose was 50 kGy, the removal efficiencies increased to 47.4%, 95.8%, 95.0%, and 95.2%, respectively. Irradiation of CBzs solutions has shown that the higher the initial concentration, the lower the percentage of CBzs removal. In addition to this, the dechlorination efficiencies of 1,2-dichlorobenzene (1,2-diCB), 1,3-dichlorobenzene (1,3-diCB) and 1,4-dichlorobenzene (1,4-diCB) were much higher than that of chlorobenzene (mono-CB). The kinetics of the reactions was achieved with nanosecond LFP. The rate constants of second-order reaction between with mono-CB, 1,2-diCB, 1,3-diCB and 1,4-diCB were (5.3±0.4) × 10 , (4.76±0.1) × 10 , (1.01±0.1) × 10 and (3.29±0.2) × 10 L·mol ·s , respectively. Density functional theory (DFT) calculations were performed to determine the optical properties of unstable CBzs anion radicals, and the main absorption peaks lied in the range of 300–550 nm. The primary reaction pathway of CBzs with was gradual dechlorination, and the major products were Cl and benzene (CBzs(-Cl )). Furthermore, biphenyl (or chlorobiphenyl) was observed during the LFP, which was probably formed by recombination of benzene radicals.

关键词： chlorinated benzenes     hydrated electron     electron beam     laser flash photolysis    

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标题 作者 时间 类型 操作

Algal biomass derived biochar anode for efficient extracellular electron uptake from

Yan-Shan Wang, Dao-Bo Li, Feng Zhang, Zhong-Hua Tong, Han-Qing Yu

期刊论文

Mechanisms behind the accelerated extracellular electron transfer in

Feng ZHANG,Shengsong YU,Jie LI,Wenwei LI,Hanqing YU

期刊论文

Simultaneous Feammox and anammox process facilitated by activated carbon as an electron shuttle for autotrophic

期刊论文

Enhancement of extracellular Cr(VI) reduction for anammox recovery using hydrazine: performance, pathways

期刊论文

Integrated energy view of wastewater treatment: A potential of electrochemical biodegradation

期刊论文

Electroactivity of the magnetotactic bacteria AMB-1 and MSR-1

期刊论文

Decellularized extracellular matrix mediates tissue construction and regeneration

期刊论文

Biosorption of Cu(II) to extracellular polymeric substances (EPS) from

Xiangliang PAN, Jing LIU, Wenjuan SONG, Daoyong ZHANG

期刊论文

Contributions of adsorption, bioreduction and desorption to uranium immobilization by extracellular polymeric

期刊论文

The source and transport of bioaerosols in the air: A review

期刊论文

precise-acting” strategies for improving anaerobic methanogenesis of organic waste: Insights from the electron

期刊论文

Insights into the electron transfer mechanisms of permanganate activation by carbon nanotube membrane

期刊论文

Long acting carmustine loaded natural extracellular matrix hydrogel for inhibition of glioblastoma recurrence

期刊论文

Influence of extracellular polymeric substances from activated sludge on the aggregation kinetics of

期刊论文

Kinetics and mechanisms of reactions for hydrated electron with chlorinated benzenes in aqueous solution

Haixia YUAN,Huxiang PAN,Jin SHI,Hongjing LI,Wenbo DONG

期刊论文