Phthalate ester (PAE) contamination, particularly from dibutyl phthalate (DBP) and di-2-ethylhexyl phthalate (DEHP), originating from landfills and released into the environment, poses a significant concern. Understan...
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Correction to: Nature Sustainabilityhttps://***/10.1038/s41893-024-01494-5, published online 6 January 2025. In the version of the article initially published, the second affiliation for Daniel Ingram, Durrell Institu...
The Joint Task Force, science Monitoring And Reliable Telecommunications (JTF SMART) Subsea Cables are working to integrate environmental sensors (temperature, pressure, seismic acceleration) into submarine telecommun...
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Calorie restriction (CR) and fasting affect lifespan, disease susceptibility and response to acute injury across multiple animal models, including ischaemic injuries such as myocardial infarction or kidney hypoxia. Th...
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Conjugated microporous polymers (CMPs) have found extensive applications in various fields such as optoelectronics, CO 2 capture, and catalysis. However, their potential in electrochemical supercapacitors as energy st...
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Conjugated microporous polymers (CMPs) have found extensive applications in various fields such as optoelectronics, CO 2 capture, and catalysis. However, their potential in electrochemical supercapacitors as energy storage and H 2 production systems remains relatively unexplored. This limited exploration can be attributed to certain challenges, including issues related to structural and electrochemical stability, as well as the relatively modest specific capacitance. Additionally, many of the CMPs discovered thus far have exhibited lower energy densities, further contributing to this underexplored aspect of their utility. In this study, we prepared two different CMPs [TPET-TTh and PyT-TTh CMPs] containing thienyltriazine units (TTh) for the redox mechanism and constructed electrodes for supercapacitor applications. The synthesized TPET-TTh and PyT-TTh CMPs displayed exceptionally high specific surface areas of 545 and 528 m² g⁻¹, respectively. Furthermore, their pore sizes were very similar, centered at approximately 0.39 and 0.36 nm, respectively. To evaluate their electrochemical properties, the TTh-CMPs were examined using cyclic voltammetry (CV) and galvanostatic charge/discharge (GCD). The resulting CV curves exhibited rectangular shapes, indicative of the characteristic behavior of electric double-layer capacitors, across a range of potential and scan rates. These TPET-TTh and PyT-TTh CMPs delivered nominal specific capacitances of 74 and 76 F g −1 at 0.5 A g −1 , respectively. In addition, they exhibited outstanding capacity retentions of 95.2 and 97.30 % even after 2000 cycles [analyzed at 10 A g −1 ]. The TTh-CMPs also exhibited excellent light-capture capabilities. The PyT-TTh CMP has faster charge separation and lower charge recombination rates than TPET-TTh CMP. This results in a higher hydrogen evolution rate from the water decomposition reaction. The H 2 production rate of PyT-TTh CMP could be as high as 18,533 μmol g −1 h −1 , which is approximately 4
Polylactic acid (PLA) ranks among the most extensively produced bioplastics, raising waste management concerns globally. This study explored dual pretreatment strategies, specifically photolysis by Ultraviolet-C (UVC)...
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Polylactic acid (PLA) ranks among the most extensively produced bioplastics, raising waste management concerns globally. This study explored dual pretreatment strategies, specifically photolysis by Ultraviolet-C (UVC) and hydrolysis by subcritical water extraction (SWE), for PLA waste treatment. UVC irradiation reduced the mechanical strength and viscosity average molecular weight (M v ) of PLA, but the effects were more significant in thin PLA films than in thick PLA beverage cups. Thus, the PLA cups were selected for SWE treatment, which reduced their M v from 190,000 to 5300. The pulverized SWE-treated PLA was later used for inducing protease and esterase in PLA-degrading bacterial consortium EAc. This active inoculum was applied as a bioaugmentation agent in a food composter for degrading UVC-treated PLA cups with food waste. PLA weight loss in the bioaugmented food composter (42 %) after 56 days was greater than the naturally attenuated composter (1 %). The residual PLA in the final bioaugmented compost had a relatively smaller size and lower M v with prominent surface erosion. In addition, the 16S rRNA gene amplicon sequencing revealed that the bioaugmentation promoted bacterial diversity and community interactions. Conclusively, PLA waste can be treated by UVC irradiation followed by composting with food waste using an active EAc inoculum.
The Glu-D1 locus of the Aegilops tauschii genome carries two high-molecular-weight glutenin genes, Dx and Dy , that are essential for viscoelastic properties of bread wheat dough, contributing to its success as a glob...
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The Glu-D1 locus of the Aegilops tauschii genome carries two high-molecular-weight glutenin genes, Dx and Dy , that are essential for viscoelastic properties of bread wheat dough, contributing to its success as a global staple crop. Here, we examined 48 Ae. tauschii high-quality genome assembles and identified a large dataset of Glu-D1 , a locus that has remained recalcitrant to high-resolution analysis due to its genomic complexity. Phylogenetic analysis supported six major clades, slightly differing from the geography-based classification. Despite a short genomic distance, gene-based haplotype analysis detected possible ancestral recombination between Dx and Dy genes that were separated by distinctive repetitive sequences. Biochemically, glutenins of the same length can vary in isoelectric points, causing deviations in migration on traditional SDS-PAGE gels. Differential selection pressures were detected among clades and between Dx and Dy glutenin genes. Two clades, L2E-1 and L2W-2, with relatively lower coeliac motifs, were identified as the most probable ancestral contributors to bread wheat. Furthermore, key amino acids were identified as conceptually suitable for single-base editing to create novel elite alleles. Dissecting genomic diversity of the Glu-D1 loci deepens our understanding of the evolutionary trajectory of these long-studied seed storage proteins and offers new strategies for wheat grain-quality improvement.
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