JOURNAL OF POLYMERS AND THE ENVIRONMENT
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2026
·Vol. 34
·期 7
·164
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IF 5.6
Zhao Zhenxiao,Jia Jun,Zhang Ning,Hu Jing,Qi Chao,Feng Jingyuan,Li Haiyang,Qin Yi,Wang Guoqiang
To improve the ductility of polylactic acid (PLA) and broaden its application, we synthesized poly(butylene glutarate-co-2,5-furandicarboxylate) (PBGF) via melt polycondensation from 2,5-furandicarboxylic acid (FDCA), glutaric acid (GA) and 1,4-butanediol (BDO). We prepared PLA/PBGF blends from PLA and PBGF at mass ratios of 90/10, 80/20, and 70/30. The chemical structure and molecular weight of PBGF were characterized. The thermal properties, mechanical properties, microstructure, crystal structure and processability of the blends were studied by differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), tensile test, dynamic thermal mechanical analysis (DMA), scanning electron microscopy (SEM), X-ray diffraction (XRD) and rheological analysis. The results showed that the random copolyester PBGF was successfully synthesized. Its number-average molecular weight ( M n ) was 36,200 g/mol, weight-average molecular weight ( M w ) was 84,900 g/mol, and polydispersity index ( D ) was 2.3. PBGF is a crystalline material, while PLA/PBGF blends have an approximate amorphous structure. With the increase of the PBGF content from 0 wt% to 30 wt%, the elongation at break increased significantly from 10.3% to 255.2%, the glass transition temperature ( T g ) decreased from 61.18 ℃ to 57.59 ℃, and the fracture mode changed from brittle fracture to ductile fracture. SEM and DMA confirmed PLA and PBGF had partial compatibility, island structure was formed in the blend, and shear bands appeared after stretching, which effectively improved the energy absorption capacity. Rheological tests showed that PBGF improved the processing stability of PLA. In this study, the ductility of PLA was improved by PBGF, which provides a new way to prepare high-performance biodegradable polymer.
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Nature Communications
·
2026
·Vol. 17
·期 1
·5204
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IF 18.1
Zhang Yinqiao,Zhang Xiaona,Qin Shuhan,Liang Hao,Ma Yiming,Di Yan,Meng Wei,Zuo Sijin,Zhou Minghua
Atomic site–specific reactivity induced by the lattice distortion has garnered increasing research interest for advancing the heterogeneous catalytic conversions, owing to strain–field–tunable electronic structure of the distorted active sites. Here, we prepare the catalysts with reactive center of ferromagnetically nanoparticulate cobalt that is fully exposed by the Co(111) lattice plane with increasing strain. Such sites can boost peracetic acid (PAA) utilization under a mild magnetic field (MF, maximum 500 mT) to produce a bulk of reactive species with high ratio 93.1% R–O • for sulfamethoxazole abatement and thus attain high–effective greener decontamination for water remediations. Spin‒polarized density functional theory and experimental results collectively confirm strain–induced spin modulation at Co(111) step A sites as a critical reactivity determinant. This work integrates MF into PAA utilization and thus provides a perspective on improving the atomic economies of developing ferromagnetic nanoparticulated metal sites into water remediation in low-energy utilization route.
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CHEMICAL ENGINEERING JOURNAL
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2026
·
IF 12.5
Dazhuang Dong,Mengmeng Cao,Xiaobo Zhao,Zhijie Xing,Xinyi Liu,Linshu Jiang,Yanxia Li,Luoyun Fang
PLA adsorbs and releases more Cd than PVC, amplifying rumen disruption. • MPs–Cd inhibited hydrolase activity and disrupted carbon‑nitrogen metabolism. • MPs–Cd reduced fermentative taxa but promoted the growth of potential pathogens. • PLA–Cd disturbed nitrogen metabolism, while PVC–Cd impaired lipid/energy pathways. • MPs act as Cd carriers, exacerbating rumen metabolic dysfunction. Microplastics (MPs) and cadmium (Cd) both occur frequently in livestock feed and husbandry environments, and can exert adverse impacts on animal physiological homeostasis and core functional processes, particularly digestive physiology. However, the mechanisms underlying their combined effects and the roles of different MP types are not yet fully understood. Here, we employed a continuous multi-cycle in vitro rumen fermentation model to investigate the impacts of co -exposure to aged polylactic acid (PLA) and polyvinyl chloride (PVC) MPs with Cd on rumen fermentation characteristics, microbial community structure, and metabolic profiles. The results demonstrated that PLA exhibited stronger Cd adsorption and greater Cd-release efficiency compared with PVC. Co-exposure markedly inhibited hydrolytic enzymes, reduced total volatile fatty acid and gas production, and decreased fermentative taxa such as Bacteroidetes and Bacillota , while favoring potential pathogens. Non-targeted metabolomics further revealed that PLA–Cd exerted a stronger influence on nitrogen metabolism, whereas PVC–Cd caused more pronounced disturbances in lipid and energy metabolism. Microbiome–metabolite network analysis revealed a more fragmented structure under PLA–Cd treatment, indicating greater perturbation of microbial–metabolic interactions. Overall, MPs act as Cd carriers, substantially threatening ruminant health by reshaping microbial composition and fermentation metabolism. This study underscores the risks of combined MP and heavy-metal pollution and calls for re-evaluating the environmental safety of biodegradable plastics in agriculture. Download: Download high-res image (171KB) Download: Download full-size image
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DIAMOND AND RELATED MATERIALS
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2026
·
IF 5.2
Yuanhong Lin,Yao Jiang,Shuaipeng Chen,Xiyue Kang,Yuehui He
Surfactants are a key factor in the preparation of electroplated diamond wires. While their influence mechanism is generally believed to be dominated by charge electrophoresis in electrochemical co-deposition, our study reveals that the adsorption energy also acts as an important influencing mechanism in this process. In this study, four different types of cationic surfactants (CTAC, DMDAAC, PDDA, CHEC) are selected to represent cationic monomers, monomers containing carbon‑carbon double bonds, polymers, and chemically modified polymers, respectively. Co-deposition of nickel and diamond (D50 = 4.3 μm and 35.6 μm) onto the tungsten wire substrate was achieved under identical electrochemical parameters. The underlying mechanism was investigated by integrating experimental characterization and molecular dynamics simulations. The results indicate that different surfactants significantly influence the diamond embedding density, and this discrepancy varies with diamond particle size. For fine diamond particles (4.3 μm), the embedding effectiveness correlated positively with the particle electrophoretic mobility. For coarse diamond particles (35.6 μm), the embedding effectiveness was dominated by the surface adsorption energy. Cationic surfactants regulate the electrophoretic migration of particles through charge reversal and influence adsorption consolidation via the interactions between their molecular structure and diamond crystal surface, which synergistically determine the diamond embedding effectiveness.
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PHOTOCHEMICAL & PHOTOBIOLOGICAL SCIENCES
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2026
·
IF 3.5
Chen Yuan,Chen Yuzhu,Li Yiduo,Wang Luyue,Ma Jie
A multifunctional fluorescence sensor is an important analytical method for detecting water quality. Herein, PCBH-FS, a fluorescence sensor, is first constructed by dispersing a new compound PCBH in THF-H 2 O (fw 60%, v/v). PCBH-FS exhibits a distinct red-shifted emission from 405 to 475 nm and a “turn-on” fluorescence response to Fe 3+ and Al 3+ in the pH range of 5–9, and PCBH-FS exhibits a good fluorescence response to H + in the pH range from 1 to 5. The Al 3+ -PCBH system can be used for F − detection, while the Al 3+ -PCBH and Fe 3+ -PCBH systems can be used for sequential AcO − detection in THF/H 2 O mixed media. The binding ratio and the possible sensing mechanism between cations and PCBH molecules are discussed clearly. The LOD of the PCBH-FS reaches 0.44 µM, 0.36 µM, 2.02 µM, and 1.45 µM for detecting Fe 3+ , Al 3+ , F − , and AcO − in turn. The sensor provides a simple “on-off” & fluorescent-shift co-detection strategy for sequential detection of multiple ions in aqueous solutions.
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Nature Communications
·
2026
·
IF 18.1
Ji Guanrui,Zhang Zhen,Li Juan,Liu Xiaolei,Wang Zeyan,Mao Liang,Chen Xincheng,Wei Wei,Li Baojun,Lou Zaizhu
As a vital industrial feedstock, carbon monoxide (CO) is widely employed in pharmaceutical, electronic and fine chemical synthesis, yet its efficient production in high purity remains challenging. Here we report a solar-driven route to high-purity CO from formic acid using a nonmetallic plasmonic photocatalyst based on aluminum-doped tungsten oxide (Al-W 18 O 49 ). Plasmon-derived hot electrons drive the cleavage of C-H in adsorbed formic acid, while a concomitant photothermal effect markedly accelerates the overall kinetics. This synergistic mechanism lowers the apparent activation energy of HCOOH dehydration to 10.5 kJ mol −1 , substantially below its thermocatalytic barrier of 80.6 kJ mol −1 , and enables a CO production rate of 1.88 mol g −1 h −1 under 1 W cm −2 irradiation. A continuous-flow reactor operated stably for 350 hours, delivering CO at a maximum rate of 2000 L m −2 h −1 under concentrated sunlight. This work develops a practical photocatalytic system for the sustainable production of high-purity CO.
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Food Bioscience
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2026
·
IF 6.2
Jiawen Lu,Ying Yang,Xingtao Zhou,Qiang Yu,Jianhua Xie,Yi Chen
Acrylamide (AA) and 5-hydroxymethylfurfural (HMF) are common food processing hazards frequently co-existing in thermally processed foods. Although both hazards have been reported to induce oxidative stress and cytotoxicity, their co-exposure effects on intestinal epithelial cells remain unclear. Here, we investigated the co-exposure effects and mechanisms of AA and HMF in intestinal epithelial IEC-6 cells. Co-exposure significantly reduced cell viability, disrupted redox homeostasis, and impaired mitochondrial function, as evidenced by glutathione depletion, increased lipid peroxidation, and mitochondrial membrane potential loss. Multiple lines of evidence supported the involvement of ferroptosis, including glutathione peroxidase 4 (GPX4) downregulation, intracellular iron accumulation, lipid reactive oxygen species (ROS) generation, and the protective effect of ferrostatin-1. Transcriptomic analysis further provided supportive evidence for ferroptosis-related pathways, which was further supported by decreased SLC7A11 expression. In parallel, alterations in autophagy-related markers and lysosomal function were observed, and chloroquine partially attenuated cellular injury, suggesting that impaired autophagic degradation may contribute to the cellular response to AA and HMF exposure. In addition, co-exposure induced nuclear accumulation of Nrf2 together with increased HO-1 expression, indicating activation of an adaptive antioxidant response to oxidative stress. Collectively, AA and HMF co-exposure induced intestinal epithelial injury associated with ferroptosis, accompanied by autophagy-lysosome dysfunction and activation of the Nrf2/HO-1 signaling. These findings improve our understanding of the cellular mechanisms underlying AA and HMF co-exposure in intestinal epithelial cells.
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Bioresource Technology Reports
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2026
·
IF 5
Zhangdi Peng,Xiaoman He,Chen Deng,Bing Song,Alec Foster,Wenlei Zhu,Richen Lin
The utilization of waste-derived volatile fatty acids (VFAs) as carbon sources for polyhydroxyalkanoate (PHAs) biosynthesis offers a promising route toward sustainable bioplastics. However, reliance on single VFAs often limits product diversity and structural tunability. In this study, we developed and optimized a co-feeding strategy using a ternary mixture of formate, acetate, and propionate in Cupriavidus necator to enable tailored PHAs production. Using response surface methodology for multi-objective optimization, a VFA ratio (formate:acetate:propionate = 0:0.38:0.62) was identified that balances PHA titer (1.33 ± 0.13 g/L) with a 3-hydroxyvalerate (3-HV) content of 62.02% (in mol). Formate exerted no beneficial effect on the biosynthesis of PHA or 3-HV under mixed substrate conditions. Fermentation kinetic analysis further revealed that acetate primarily promoted cell growth and PHAs backbone synthesis, whereas propionate enhanced 3-HV formation while competitively inhibiting acetate uptake. The resulting copolymer exhibited improved thermal processability, as evidenced by a lower glass transition temperature (46.81 °C ± 0.01) and a reduced primary melting temperature (81.05 °C ± 0.14). Collectively, this work provides a viable strategy for producing tunable bioplastics from renewable mixed VFAs, advancing circular bio-manufacturing.
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COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2026
·
IF 5.4
Chen Wang,Shihao Wang,Yunmeng Qu,Pengfei Cheng,Yinglin Wang
Developing ethanol-selective gas sensors remains challenging because structurally and chemically related volatile organic compounds (VOCs) often induce similar responses on semiconductor metal oxide surfaces. Here, we report a zeolitic imidazolate framework-8 (ZIF-8)-enabled strategy for reprogramming gas selectivity rather than simple response enhancement by constructing Co₃O₄@ZIF-8 core–shell nanorod arrays. The ZIF-8 layer was deposited on Co₃O₄ nanorods through a seed-assisted conversion route to regulate gas transport and interfacial adsorption. Compared with pristine Co₃O₄ sensor, ZIF-8 functionalization induced a distinct selectivity shift from acetone-preferred to ethanol-preferred sensing (8.7 toward 100 ppm ethanol at 225 °C) and improved humidity tolerance due to the hydrophobicity of ZIF-8. Density functional theory (DFT) calculations revealed stronger ethanol adsorption on ZIF-8 than acetone adsorption, supporting preferential ethanol enrichment within the ZIF-8 shell. This work establishes ZIF-8 functionalization as an effective route for engineering ethanol selectivity in Co₃O₄ sensors and provides insight into MOF-assisted selectivity reprogramming in MOS chemiresistive gas sensors. Download: Download high-res image (187KB) Download: Download full-size image
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Journal of Energy Chemistry
·
2026
·
IF 15.6
Shuangting Ren,Tian Han,Ruijing Zhang,Ruimin Xing,Rohit Jasrotia,Hamid Zouggari,Abdallah Albourine,Shanhu Liu
Alkaline hydrogen evolution reaction (HER) is constrained by the Sabatier principle, making it challenging to simultaneously optimize water dissociation and hydrogen desorption. Here, we report a spatially decoupled tandem catalyst, Co(OH) 2 @Mo 2 C, that circumvents this constraint via a hydroxyl-mediated hydrogen spillover pathway. Mo 2 C serves as the *H generation site via rapid water dissociation, while adjacent Co(OH) 2 functions as the *H acceptor and recombination center, with abundant surface hydroxyl groups on Co(OH) 2 accelerating hydrogen spillover from Mo 2 C to Co(OH) 2 and sustaining water dissociation kinetics. CH 3 I poisoning experiments, corroborated by in situ Raman spectroscopy and density functional theory calculations, reveal the critical mediating role of hydroxyl groups in hydrogen migration. The optimized catalyst achieves only 43 mV overpotential to reach 10 mA cm −2 in 1 M KOH, and durability over 150 h at 0.5 A cm −2 in an anion exchange membrane water electrolyzer. This work establishes a generalizable interfacial engineering strategy to circumvent the Sabatier limitation by accelerating hydrogen migration on spatially segregating elementary steps. A spatially decoupled Co(OH) 2 @Mo 2 C tandem electrocatalyst shows that Mo 2 C rapidly dissociates water while Co(OH) 2 efficiently shuttles *H to accelerate H 2 release, where Co(OH) 2 abundant surface hydroxyl groups accelerate hydrogen spillover from Mo 2 C to Co(OH) 2 and maintain water dissociation kinetics. Download: Download high-res image (179KB) Download: Download full-size image
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METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE
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2026
·
IF 3.3
Chen Buxin,Bai Chenguang,Hu Meilong,Chen Mao
Understanding the H 2 -rich reduction behavior and mechanism of the single-phase pseudobrookite (FeTiO 3 ) is essential for the green utilization of the strategic resource vanadium titanomagnetite. In this work, the reduction behavior of FeTiO 3 under CO–H 2 atmospheres was systematically investigated via non‑isothermal thermogravimetric experiments. The study focused on key parameters including the reduction degree, reduction rate, post‑reduction microstructure, and the particle size distribution of the resulting metallic iron and porosity. The results reveal that the promoting effect of H 2 -rich on macroscopic reduction behavior of FeTiO 3 originates from microstructural evolution, linking pore development and iron particle refinement.
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INTERNATIONAL JOURNAL OF PHARMACEUTICS
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2026
·
IF 6
Yunxia Li,Shiyuan Liu,Di Xu,Yuxing Ding,Yanbin Jiang
Multimodal transfer learning improved co-amorphous prediction from limited data. • Graph, DFT and SMILES representations provided complementary predictive information. • Model-guided screening yielded four afatinib co-amorphous systems. • Co-amorphous systems showed greater dissolution and pH-dependent apparent solubility. Most active pharmaceutical ingredients (APIs) are poorly water-soluble, limiting their pharmaceutical performance. Co-amorphous (CA) systems offer a promising formulation strategy, yet CA prediction remains constrained by limited labeled data and insufficient molecular representation. Here, a multimodal transfer-learning framework was developed by transferring molecular graph representations from a larger co-crystal dataset and integrating graph, DFT and SMILES information for small-sample CA prediction. The model achieved an AUC-ROC of 0.924 and an MCC of 0.771. Compared with existing AI-assisted CA prediction approaches, this framework combines cross-domain knowledge transfer with complementary molecular representations to address the limited-data challenge. Using afatinib (AF) as a model API, four AF-based CA systems were prepared by ball milling. Solid-state characterization supported amorphous CA formation, and dimer-level quantum-chemical calculations supported the plausibility of favorable local AF-co-former interaction motifs. The CA systems showed pH-dependent apparent solubility advantages and greater dissolution extents than Crystal AF. Under dry storage conditions, the CA systems maintained their amorphous state and morphology. CCK-8 assays revealed differences in HCC827 cell viability inhibition among the tested samples. Overall, this study establishes an AI-assisted approach for CA co-former screening and experimental prioritization, providing a practical strategy for formulation development of poorly soluble drugs. Download: Download high-res image (247KB) Download: Download full-size image
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