Journal of Food Measurement and Characterization
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2026
·
IF 3.6
Guan Xiuping,Guo Xinbo
Folate are essential B-group vitamins involved in one-carbon metabolism and human health. Accurate determination of individual folate vitamers together with selected biosynthetic precursors remains analytically challenging because of their structural diversity, low endogenous concentrations, and distinct physicochemical properties. A sensitive and practical HPLC–FLD method was developed for the determination of individual folate vitamers together with selected biosynthetic precursors, and subsequently applied to selected plant-derived foods. The target analytes included dihydrofolate (DHF), tetrahydrofolate (THF), 5-methyltetrahydrofolate (5-MTHF), 5-formyltetrahydrofolate (5-FTHF), 10-formylfolic acid (10-FFA), folic acid (FA), p-aminobenzoic acid (p-ABA), and 7,8-dihydroneopterin (DHN). The method exhibited good linearity (R² > 0.994), satisfactory recoveries (73.01–100.80%), acceptable precision (RSD < 9%), and limits of detection reaching the “pmol” level for several analytes. The developed method was applied to selected plant-derived food samples, including cereals, soybeans, and vegetables, demonstrating its potential for characterizing differences in folate vitamer and precursor composition among the investigated food samples. Owing to its economical instrumentation, relatively simple sample pretreatment, and ability to quantify both folate vitamers and biosynthetic precursors, the proposed method provides a practical analytical tool for folate profiling in selected plant-derived foods, although further validation across additional food matrices would be required to establish broader applicability.
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高影响因子
Nature Communications
·
2026
·
IF 18.1
Gu Shengjie,Chu Mingyu,Hu Ping,Wang Xuchun,Cao Muhan,Sham Tsun-Kong,Zhang Qiao,Chen Jinxing
Catalytic upcycling of polyolefin waste into valuable chemicals presents a promising solution to tackle the growing environmental crisis caused by plastic pollution while promoting a circular economy. However, processing plastic wastes that contain polyvinyl chloride (PVC) poses significant hurdles, as chlorine released during PVC breakdown can poison and deactivate metal catalysts. Here we introduce a non-thermal surface reconstruction strategy that can restore the activity of chlorine-poisoned catalysts at room temperature. Leveraging the potent reductive reactivity of NaBH 4 , chlorine contaminants on the catalyst surface are effectively eliminated, restoring the active sites. The clean-surface Ru catalysts exhibit enhanced chlorine tolerance and recyclability in the hydrogenolysis of PVC-polyolefin mixtures, offering a practical catalytic pathway for valorizing chlorine-containing plastic waste. Notably, these catalysts also display great activity in polyolefin hydrogenolysis, reaching a space-time yield of solids to condensable products of 5982 g PE · g Ru −1 · h −1 . This study opens new avenues for plastic upcycling and contributes to sustainable waste management, bringing us closer to a circular economy.
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JOURNAL OF ELECTRONIC MATERIALS
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2026
·
IF 2.8
Xiao Zhen,Chen Jianfeng,Li Wenkang,Yu Shaoxiong,Gu Jiatao,Yang Wutao,Wang Yijue,Xu Rui,Xia Yang,Zhang Lihui,Wang Bingjia
Carbon-based conductive polymer composites have attracted widespread attention due to their excellent flexibility, ultra-lightweight characteristics, cost-effectiveness, and tunable electrical performance. However, their practical applications are severely restricted by inherent limitations, such as the inability to achieve sustainable high temperatures under low driving voltages, inadequate thermal stability at high temperatures, and uneven heat distribution. To overcome these intractable issues, we designed a series of glass powder/carbon black@polyimide (GP/SP@PI) composite electrothermal films by a practical and scalable slurry coating method. In this regard, the incorporation of low-melting-point glass powders not only significantly increases the maximum operating temperature over 200°C, but also substantially enhances the thermal stability and flame retardancy. Upon ignition, the GP/SP@PI composite electrothermal films self-extinguish within 4 s without sustained combustion or droplet formation. Moreover, as a thin-film electric heater, the optimized sample (PI-65) exhibits rapid temperature response, efficient electrothermal conversion, and excellent heating reliability. By virtue of these advantages in terms of low-voltage operability, high-temperature stability, and inherent safety, these GP/SP@PI composite electrothermal films are employed as a thin-film electric heater to boil water for a simplified practical application. Notably, the PI-65 sample successfully heats 10 ml water from room temperature to 99.6°C within 4 min, confirming the high feasibility of application in household appliances. This work provides innovative insights into the rational design of carbon-based composite electrothermal films with high operating temperature as well as superior reliability for integrated thin-film electric heaters. Moreover, the method is simple and can be adopted in industrial applications. Graphical
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Microsystems & Nanoengineering
·
2026
·Vol. 12
·期 1
·174
·
IF 11.1
Gao Hanpeng,Li Li,Hu Yamin,Ana Sofia Oliveira Henriques Moita,Wang Xi,Meng Zong,Han Zhiwu,Liu Yan
The escalating threats posed by global warming are intensifying freshwater and energy scarcity, driving the demand for integrated systems that harvest fog and supply power. However, existing systems are challenged because high-efficiency fog harvesters lack energy supply, whereas droplet-based generators have low water yield. Herein, we present a novel bioinspired integrated system that combines synergistic biomimetic dendritic structured surface with a droplet-based triboelectric nanogenerator for simultaneously harvest water and generate energy. Specifically, the synergistic biomimetic dendritic structured surface combines Laplace force, capillary force, and surface wetting gradient, enabling barrier-free droplet transport and highly efficient fog harvesting. Moreover, the optimized MXene-PDMS with Superhydrophobicity prevents water retention and deposit shielding on the triboelectric layer, enlarging the electrostatic area and enhancing charge output. Remarkably, the optimized SBDSS achieves a 9.7 g·cm −2 ·h −1 fog harvesting rate, representing 125% and 430% of unprocessed and non-UV-irradiated surfaces, respectively. The integrated D-TENG provides a new approach for efficient harvesting energy from fog droplets in practical environments, with enhanced durability and stability. Intriguingly, the novel bioinspired integrated system supports the growth of barley ( Hordeum vulgare ), providing freshwater and LED lighting for plant growth. This system offers a viable solution to address water and energy challenges in agricultural systems. The alternative text for this image may have been generated using AI.
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高影响因子
BMC PLANT BIOLOGY
·
2026
·Vol. 26
·期 1
·717
·
IF 5.6
Wang Qiang,Deng Jinyang,Zeng Qingchen,Wang Zhiyan,Yin Mingda,Zhan Chao,Wang Yu,Liang Xiaotian,Xiang Dabing,Zheng Xiaoqin,Huang Jingwei,Liang Chengang,Mei Linsen,Fan Yu,Zou Liang,Wan Yan
Background Tartary buckwheat ( Fagopyrum tataricum ) is predominantly cultivated in arid and semi-arid mountainous regions. However, existing studies predominantly focus on describing the natural metabolic changes and the regulation of stress resistance during the germination of Tartary buckwheat. In contrast, research on the systematic influence of calcium ions on the germination physiology and metabolic networks of plants has yet to be reported. In this study, we elucidated the physiological mechanisms underlying calcium-mediated effects on Tartary buckwheat seed germination using six concentrations of CaCl₂ (0, 1, 2, 3, 4, and 5 g·L⁻¹). Results Exogenous calcium application exhibited a concentration-dependent effect on seed germination, characterized by low-dose promotion and high-dose inhibition. An appropriate calcium supply significantly promoted the accumulation of osmoregulatory substances, including total sugars, reducing sugars, and free amino acids, by enhancing the decomposition of starch and soluble proteins. Furthermore, it facilitated the accumulation of active compounds, such as total phenols, flavonoids, and γ-aminobutyric acid, and enhanced the activities of key enzymes including phenylalanine ammonia-lyase, glutamate decarboxylase, and α-amylase, thereby improving seed antioxidant capacity. Metabolomic analysis revealed that linoleic acid metabolism, D-amino acid metabolism, and phenylalanine metabolism are the core pathways involved in calcium-regulated seed germination. Furthermore, exogenous calcium systematically improved stress resistance and germination capacity by modulating the levels of key metabolites in these pathways, thereby influencing lipid remodeling, nitrogen metabolism, and secondary metabolite synthesis. Conclusions Exogenous calcium effectively promoted the germination of Tartary buckwheat seeds by mediating amino acid and lipid metabolism, thus regulating osmotic balance and the antioxidant defense system. The optimal treatment concentration identified was 3 g·L⁻¹ CaCl₂. This study elucidates the multiple mechanisms through which calcium regulates the germination of Tartary buckwheat seeds at both physiological and metabolic levels, providing a theoretical basis and practical guidance for the rational application of calcium fertilizers in Tartary buckwheat cultivation. Graphical The alternative text for this image may have been generated using AI.
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BIOLOGICAL TRACE ELEMENT RESEARCH
·
2026
·
IF 4.3
Zhang Zhenyang,Chen Weijun,Shen Jiaqi,Dong Haowei,Zhang Chunnuan,Gao Xiaochan,Ren Hongtao,Huang Yong,Gao Shiyang
Waterborne cadmium (Cd) remains a significant threat to the intestinal health and growth of largemouth bass ( Micropterus salmoides ), necessitating the search for effective dietary mitigants. In this 56-day trial, the protective efficacy of paeonol (PAE) was evaluated across five experimental groups: a negative control, a Cd-stressed group (Cd, 2.75 mg/L waterborne exposure), and three treatment groups concurrently exposed to 2.75 mg/L Cd and supplemented with dietary PAE at 100, 200, and 400 mg/kg, respectively. The results showed that Cd exposure induced intestinal oxidative stress, impaired structural integrity, downregulated antimicrobial peptide expression, compromised immune function, and disrupted intestinal microbial homeostasis ( P < 0.05). PAE supplementation significantly decreased malondialdehyde (MDA) content, and the PAE200-Cd exhibited increased activities of total superoxide dismutase (T-SOD) and catalase (CAT), as well as elevated expression of nuclear factor erythroid 2-related factor 2 (Nrf2) and cytochrome P450 1A1 (CYP1A1) ( P < 0.05). Intestinal villus structure was restored, the number of goblet cells increased, and the expression of tight junction proteins (Occludin, ZO-1, Claudin-1) genes was significantly upregulated ( P < 0.05). Meanwhile, the expression of β-defensin, Lysozyme, and Mucin 2 was significantly upregulated ( P < 0.05). The PAE100-Cd showed increased expression of immunoglobulins (e.g., IgM and IgT), while the PAE200-Cd inhibited the expression of pro-inflammatory factors ( P < 0.05). Cd-induced negative changes in intestinal microbial diversity and stability were restored by PAE, and the PAE200-Cd exhibited decreased abundances of Proteobacteria and Pseudomonas , and increased abundance of Firmicutes ( P < 0.05). Under the present experimental conditions, the appropriate dietary PAE level based on oxidative stress and intestinal physical barrier was preliminarily estimated to be 115.51–229.55 mg/kg. Collectively, PAE can alleviate Cd-induced intestinal injury by improving antioxidant capacity and enhancing intestinal barrier function, and represents a promising functional candidate for heavy metal mitigation. Graphical The alternative text for this image may have been generated using AI.
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高影响因子
Nature Communications
·
2026
·
IF 18.1
Tan Xiaohe,Liu Yunxia,Tan Qiang,Su Chenkun,Chen Da,Duan Zhiyao,Gou Wangyan,Ma Yuanyuan,Dai Zhongqin,Qu Yongquan
Toluene electrooxidation offers a sustainable route for the synthesis of valuable oxygen-containing chemicals, but existing methods often rely on strongly acidic or basic electrolytes, high cell voltages, or soluble mediators that complicate catalyst separation and increase waste. In this study, we show that combining grafted 2,2,6,6-tetramethylpiperidine N-oxyl (TEMPO) units with atomically dispersed iron sites in nitrogen-doped carbon enables efficient and selective electrooxidation of toluene to benzaldehyde under mild conditions. The catalyst operates at low potentials of 1.5 ~ 1.8 V vs . Ag/Ag + without the need for added molecular hydrogen-atom-transfer reagents, soluble metal redox couples, or strong acids/bases. Mechanistic studies indicate that the grafted TEMPO not only participates in oxidation chemistry but also reshapes the carbon framework by introducing carbonyl groups, which modulate the electronic structure and lower the spin state of the iron centers. These coupled electronic and spin effects promote oxygen activation, thereby promoting the formation and release of reactive superoxide species that drive selective toluene oxidation. This strategy provides a cleaner platform for aerobic electrooxidation and offers a design principle for selective oxidation catalysis powered by electricity.
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高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2026
·Vol. 37
·期 13
·1005
·
IF 3.2
Jia Wenlei,Geng Rencong,Yang Ping,Li Mingwei,Qi Wenhan,Zhou Ju,Yue Yihua,Li Shiqi,Han Jiao,Zeng Yiming
To improve the comprehensive properties of Si 3 N 4 ceramics, diamond powders with different particle sizes (1 and 2 μm) were added. The effects of diamond particle size on carbothermal reduction behavior, phase evolution, microstructure, and thermomechanical properties of Si 3 N 4 ceramics were systematically investigated. The results show that 1 μm diamond exhibits higher reactivity because of its smaller particle size and larger specific surface area, which promotes the carbothermal reduction of surface silica, decreases oxygen-related impurities, and increases the N/O ratio of the liquid phase. As a consequence, the dissolution–reprecipitation growth of elongated β-Si 3 N 4 grains is enhanced, leading to reduced grain-boundary scattering and improved thermal conductivity. In contrast, 2 μm diamond shows lower reactivity, resulting in insufficient carbothermal reduction, hindered densification, and inferior overall properties. Although the sample containing 1 μm diamond exhibits the highest thermal conductivity, its flexural strength decreases slightly, which is attributed to the combined effects of grain coarsening, reduced intergranular phase, and increased defect sensitivity. These results demonstrate that optimizing diamond particle size is an effective approach for regulating oxygen impurity, microstructure, and overall performance in Si 3 N 4 ceramics.
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Emergent Materials
·
2026
·Vol. 9
·期 5
·109
·
IF 4
Khudher Raad H.,Hasan Ahmad A.,Albayati Talib M.,Zendehboudi Sohrab,Saady Noori M. Cata
In this study, eco-friendly ultrafiltration (UF) membrane is developed using a blend of polyacrylonitrile (PAN) and polylactic acid (PLA) polymers. The UF membrane is modified with green additive nanoparticles (NPs) derived from onion peel waste (OPW), to enhance anti-fouling performance in oily wastewater treatment. The PAN/PLA/OPW membrane is prepared using a phase inversion technique and systematically investigated using FTIR, FE-SEM, AFM, EDX, along with contact angle measurement, porosity determination, mechanical strength testing, and surface roughness evaluation. The effects of varying OPW NP loadings (0.025–0.15 wt.%) on membrane properties and performance are examined. At a membrane loading of 0.1 wt.%, it exhibits a significant enhancement in performance, with an improvement in pure water flux to 931 L/m 2 .h from 524 L/m 2 .h for pristine PAN/PLA, driven by improved hydrophilicity (contact angle reduced from 66.8° to 34.6°), porosity (69% to 95%), and tensile strength (7.81 to 11.7 MPa). Under a feed at an oil concentration 50 ppm and a pressure 2 bar, the modified membrane achieves an oil rejection of 65.8%, which increases to 100% at 550 ppm, highlighting its strong performance at higher contaminant loads. The flux recovery ratio (FRR) reaches 95.8%, leading to enhanced anti-fouling properties. Surface roughness decreases, enhancing foulant resistance. After four operation-cleaning cycles, oil rejection efficiency remains stable with only a slight decline in flux. The modified membrane demonstrates reliable chemical and operational stability, showing its ability to operate continuously for 48 h without noticeable performance degradation, exhibiting its compatibility with water treatment environments containing complex chemical components. Utilizing low-cost agricultural waste as a source of NPs contributes to reducing the environmental footprint and promoting the concept of a circular economy within engineering solutions. The residual oil content in the effluent remains below 5 ppm, aligning with World Health Organization (WHO) environmental discharge standards. Overall, the PAN/PLA/OPW membranes demonstrate high separation efficiency, durability, and environmental sustainability, thus qualifying them as promising candidates for industrial oily wastewater treatment.
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高影响因子
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
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2026
·
IF 2.6
Ge Chuntao,Sun Liwen,Kou Qian,Zhang Jun,Xiao Saijun
This work reports the controllable electrodeposition of dense, adherent metallic chromium coatings from a low-cost, environmentally benign NaCl-CaCl 2 -CrCl 2 molten salt. The influence of key process parameters, including cathodic current density (10-70 mA cm −2 ), temperature (620-720 °C), time (3-60 min), and substrate material (304 stainless steel, Ni, W, Mo), on the microstructure and growth behavior of the coatings was systematically examined. Optimal conditions were identified at 620 °C and 30 mA cm −2 , resulting in smooth, uniform, and fully dense chromium coatings. Under these optimal conditions, the coatings exhibited a strong (200) preferred orientation, with an average growth rate of 0.65 μm min −1 and a cathode current efficiency of approximately 96%. In contrast, higher current densities or elevated temperatures led to the formation of nodular structures and grain coarsening, attributable to mass transport limitations and enhanced adatom mobility, respectively. The process demonstrated excellent versatility, producing dense coatings on all tested substrates. Crucially, a strong metallurgical bond was formed via interfacial inter-diffusion. This study establishes a clear process-structure relationship, affirming this molten salt method as a promising environmentally friendly alternative to traditional chromium plating.
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高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2026
·Vol. 37
·期 13
·1020
·
IF 3.2
Fang Congcong,Meng Bin,Yang Qingqing,Liu Peng,Wang Shuo,Wang Hao,Wang Beier
A two-step coprecipitation method was used to synthesize core–shell structured BaCe 0.9 Y 0.1 O 2.95±δ (BCY)@Ce 0.9 Y 0.1 O 1.95±δ (YDC) powders, and the corresponding BCY@YDC ceramics were prepared by sintering at 1600 °C for 10 h under an air atmosphere. XRD, SEM, and TEM analyses show that the molar ratio of BCY to YDC in BCY@YDC ceramics prepared from core–shell powders is 1: 1, and the phase distribution is uniform. Under a dry air atmosphere at 700 °C, the BCY@YDC ceramic achieves an electrical conductivity of 1.2 × 10 –2 S/cm, which is 1.3 and 1.8 times that of the mechanically mixed BCY-YDC counterpart and the single-phase YDC, respectively. Concurrently, the specific grain boundary electrical conductivity of the BCY@YDC ceramic in a dry air atmosphere is 1.3 times and 31.4 times that of BCY-YDC and YDC, respectively. This further demonstrates that this unique phase distribution, inherited from the core–shell powders, effectively enhances the electrical conductivity of CeO 2 -based composite electrolytes.
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高影响因子
Nature Communications
·
2026
·
IF 18.1
Liu Yinjiang,Kong Tengfei,Zhao Zihan,Chen Weiting,Song Qili,Liang Wenjie,Bi Dongqin
Despite recent advances, the fill factor (FF) of perovskite solar cells remains limited, largely owing to defect-related recombination. Paradoxically, most defect passivation approaches still depend on solvents, which deteriorate stability and pose challenges for large-scale fabrication. Here, we introduce a vapor-phase deposited from a liquid triethylammonium pentafluoropropionate (TEA-PFP) layer on top of perovskite. During deposition, TEA⁺ reacts with residual PbI 2 to generate a one-dimensional TEAPbI 3 interfacial phase, promoting continuous electronic coupling and facilitating charge extraction. Simultaneously, the Lewis-basic PFP – anion passivates under-coordinated Pb 2+ and suppresses vacancy formation, markedly reducing non-radiative recombination. The bulky TEA + and strongly dipolar PFP – groups anchor at surface Pb sites, forming a self-limited, surface-confined layer. As a result, we achieve a champion power conversion efficiency of 26.71% (certified 26.15%) and a record FF = 89.13% for small area device, while attaining a PCE of 25.32% for 1 cm 2 device. Moreover, this strategy effectively mitigates Ag + diffusion during accelerated aging and preserves outstanding stability under combined thermal and humidity stress, providing a robust pathway to overcome the FF bottleneck in perovskite photovoltaics.
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高影响因子
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