記述言語：英語   掲載種別：研究論文（学術雑誌）  

DOI： 10.1016/j.envpol.2025.127141

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

DOI： 10.1016/j.jece.2025.119751

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

DOI： 10.1007/978-981-96-8931-6_6

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

DOI： 10.1016/j.ocecoaman.2025.107807

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

DOI： 10.1016/j.electacta.2025.147096

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

DOI： 10.1016/j.rser.2025.115895

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

DOI： 10.1016/j.apenergy.2025.126805

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記述言語：英語   掲載種別：研究論文（国際会議プロシーディングス）  

DOI： 10.1109/WEEF-GEDC66748.2025.11256309

Web of Science

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

DOI： 10.3390/pr12122855

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

To address two current issues in evaluating the toxicity of microplastics (MPs) namely, conflicting results due to species specificity and the ecological irrelevance of laboratory data, this study conducted a 10-day exposure experiment using a microalgal community comprising three symbiotic species. The experiment involved virgin and Benzo[a]pyrene-spiked micron-scale fibers and fragments made of polyethylene terephthalate (PET) and polypropylene (PP). The results showed that, from a physiological perspective, environmentally relevant concentrations of micron-scale MPs decreased saccharide accumulation in microalgal cells, as confirmed by ultrastructural observations. MPs may increase cellular energy consumption by obstructing cellular motility, interfering with nutrient uptake, and causing sustained oxidative stress. Additionally, MPs and adsorbed B[a]P induced DNA damage in microalgae, potentially further disrupting cellular energy metabolism. Ecologically, MPs altered the species abundance in microalgal communities, suggesting they could weaken the ecological functions of these communities as producers and affect ecosystem diversity and stability. This study marks a significant advancement from traditional single-species toxicity experiments to community-level assessments, providing essential insights for ecological risk assessment of microplastics and guiding future mechanistic studies utilizing multi-omics analysis.

DOI： 10.1016/j.jhazmat.2024.134995

PubMed

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掲載種別：研究論文（学術雑誌）  

DOI： 10.1016/j.jhazmat.2024.134995

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

This study explored the effectiveness of hydrothermal liquefaction (HTL) in converting sewage sludge (SS) into high-quality biocrude. It scrutinized the influence of various solvents, including conventional choices like dichloromethane (DCM) and hexane, alongside environmentally friendly alternatives, such as ethyl butyrate (EB) and ethyl acetate (EA). HTL experiments, conducted at 350 °C for 60 min in a 20 mL batch reactor, include solvent-based biocrude extraction. Notably, EB showed the highest extraction yield (50.1 wt %), the lowest nitrogen distribution (5.4% with 0.32 wt %), and a remarkable 74% energy recovery (ER), setting a noteworthy benchmark in nitrogen reduction. GCMS analysis reveals EB-derived biocrude's superiority in having the least heteroatoms and nitrogenous compounds compared to hexane, EA, and DCM. Solid residues from hexane, EB, and EA displayed the highest nitrogen distribution range (62-68%), hinting at potential applications in further processes. These findings significantly inform solvent selection for efficient and sustainable waste-to-energy conversion. While promising, the study emphasizes the need to explore solvent-solute interactions further to optimize biocrude quality, highlighting the pivotal role of solvent choice in advancing clean, cost-effective waste-to-energy technologies.

DOI： 10.1021/acsomega.4c00455

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掲載種別：研究論文（学術雑誌）  

DOI： 10.1021/acsomega.4c00455

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掲載種別：研究論文（学術雑誌）  

DOI： 10.1007/s43615-023-00302-0

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

Electrochemical conversion of underutilized biomass-based glycerol into high-value-added products provides a green approach for biomass and waste valorization. Plus, this approach offers an alternative to biofuel manufacturing procedure, under mild operating conditions, compared to the traditional thermochemical routes. Nevertheless, glycerol has been widely valorized via electrooxidation, with lower-value products generated at the cathode, ignoring the electroreduction. Here, a review of the efficient glycerol reduction into various products via the electrocatalytic reduction (ECR) process was presented. This review has been built upon the background of glycerol underutilization and theoretical knowledge about the state-of-the-art ECR. The experimental understanding of the processing parameter influences towards electrochemical efficiency, catalytic activity, and product selectivity are comprehensively reviewed, based on the recent glycerol ECR studies. We conclude by outlining present issues and highlighting potential future research avenues for enhanced ECR application.

DOI： 10.1002/cssc.202300990

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

Synthetic microfibers (MFs), which are Microplastics (MPs), have not received attention commensurate with their abundance in the environment. Currently, limited studies on MFs have focused on their effects on marine organisms. It is therefore necessary to conduct exposure experiments of MFs on freshwater organisms to provide reference data for the ecological risk assessment of MFs. As a primary producer in freshwater ecosystems, microalgae have an ecological niche that is highly overlapping with that of MFs. In this study, we examined the effects of MFs on the growth of Chlorella and indicators of oxidative stress to examine their potential risk on the microalgae population. The results showed that inhibition rate of microalgae increased with MF concentration in the range of 0.01-100 mg/L. Compared with natural fibers such as cotton and wool, PET and PP fibers showed significant growth inhibition, but less so when in fragment form with the same material and concentration. PP and PET particles, whether fibers or fragments, increased the total antioxidant capacity of microalgal cells and caused oxidative damage. To determine the influence of MFs on the interaction of cells in the environment, the exchanged substances and accumulated energy of microalgae cells were also detected. The results indicated that PP and PET fibers, as well as fragments, increased the diameter and membrane permeability of microalgae cell, thus interfering with the cell division and substance exchange processes. PET fibers and fragments showed different interactions at the level of individual cells and populations. This suggests that the evaluation of MPs should consider examinations from cells to population and even community levels in the future.

DOI： 10.1016/j.scitotenv.2023.167936

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掲載種別：研究論文（学術雑誌）  

DOI： 10.1016/j.scitotenv.2023.167936

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DOI： 10.1007/978-3-031-47328-9_5

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掲載種別：研究論文（学術雑誌）  

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