Journal of Cleaner Production
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2026
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IF 10
Mengyao Qi,Zhenkai Luo,Hang Liang,Weijun Peng,Wei Wang,Yijun Cao,Longyu Zhang,Yukun Huang
To address the technical bottleneck of declining hydrophobicity in finely ground minerals that leads to low recovery of traditional hydrocarbon oil collectors, this study utilized computational simulations to design and synthesize a novel collector. Simulation calculations showed that dodecyl xanthogenic acid (DXA-C12) had a comprehensive adsorption effect on both the “basal” and “edges” of molybdenite. Micro-flotation tests showed that DXA-C12 had significant flotation advantages for micro-fine grained molybdenite compared with the traditional kerosene and xanthate combined collector. DXA-C12 interacted with the “basal” and “edges” of molybdenite through hydrophobic and chemical forces, respectively. The DXA-C12 carbon chain drove the interaction with the “basal” and adsorbed in a tiled form. In contrast, C=S supplied electrons to the Mo atoms in “edges”, forming adsorption in an upright form. For the actual micro-fine grained molybdenum ore with a particle size of −38 μm accounted for 97 % and Mo grade of about 4.00 %, using DXA-C12 as the collector could obtain the concentrate with Mo grade and recovery of 39.099 % and 99.68 %, respectively. The study provided a novel collector for micro-fine grained molybdenum ore, and had an important reference significance for the development of other new types of collectors.
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COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2026
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IF 5.4
Jingyi Zhu,Yuzhi Tang,Jie Zhou,Zhaozhong Yang,Jiayu He,Jin Zhang
Deep carbonate reservoirs are rich in oil and gas reserves, but high-temperature and deep-burial conditions may cause conventional retarded acid to fail, thereby reducing acid stimulation efficiency. To address these challenges, microcapsule acids with high thermal stability, strong acid resistance, and delayed release capability were prepared. Methyl methacrylate and N-methylolacrylamide copolymer were selected as the shell material, and microcapsule acids capable of withstanding temperatures up to 180°C were synthesized via the interfacial polymerization method. Optimized parameters for mini-emulsion preparation and the interfacial polymerization process improved the uniformity of microcapsule particle size. The particle size and its distribution, micro-morphology, and shell material properties of the microcapsule acids were characterized by laser particle size analysis, infrared spectroscopy, scanning electron microscopy, differential scanning calorimetry, and thermogravimetric analysis. The experimental results showed that the average particle size of the microcapsule acids prepared by the interfacial polymerization method was 321.7 μm, with most particles distributed between 200 μm and 400 μm, exhibiting uniformity and good dispersibility. Thermal analysis indicated that the shell material maintained its structural integrity under high-temperature conditions of 180°C. Suspension tests demonstrated that the microcapsule acids could achieve long-distance transport in clear water and be evenly distributed in the formation. Acid release experiments confirmed that these microcapsule acids could achieve delayed release. These results further indicate that the microcapsule acids have broad application potential in acid fracturing of deep carbonate reservoirs.
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Journal of Building Engineering
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2026
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IF 7.4
Haojie Fu,Chunmei Zhang,Li Yang,Hui Zhang,Xiaoshan Ji,KaiYuan Mei,Xiaowei Cheng
Based on the challenges in offshore oil and gas cementing operations, such as slow cement hydration, restricted strength development, and increased gas hydrate layer decomposition risks, cellulose aerogel-based phase-change thermal control material NCPCM using one-step in-situ encapsulation combined with freeze-drying was prepared in this study. This material can effectively regulate the hydration heat of cement slurry under low temperature conditions. Hexagonal boron nitride was introduced to enhance the heat transfer capacity of the material, significantly improving its thermal conductivity. The modified NCPCM was analyzed, and the effect of NCPCM on the hydration mechanism of cement was investigated. The results showed that the phase transition temperature (T m ) of NCPCM was 20.83 °C, accompanied by a latent heat of 143.14 J/g. In the low temperature environment of 4 °C, the incorporation of NCPCM into cement slurry can effectively reduce the temperature rise and cumulative heat release of cement hydration. At the same time, the incorporation of NCPCM can promote the formation of ettringite (AFt), calcium-silicate-hydrate (C-S-H) and calcium hydroxide (CH), and improve the early compressive strength of cement. NCPCM is environmentally friendly and has a good application prospect in deep-sea shallow gas hydrate layer cementing.
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MICROCHEMICAL JOURNAL
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2026
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IF 5.1
Qing-nan Chen,Yun-e Bai,Yao Ma,Rui Liao,Lu-lu Wang,Shuang Hu,Jian- ping Gao
Latex-bearing plants have gained global attention, but few studies have been reported on Codonopsis pilosula (Franch.) Nannf.( C. pilosula ) latex. In this research, we established a UHPLC-MS/MS method to investigate the constituents in C. pilosula latex. Analysis revealed that the latex of C. pilosula contains alkaloids, terpenoids, and fatty acids, with fatty acids being one of the primary metabolites distinguishing the latex from above-ground (DS) and below-ground (DX) parts of C. pilosula. To evaluate the quality of C. pilosula latex, an approach of dispersive liquid-liquid microextraction with solidification of the floating organic drop (DLLME-SFO) methodology was developed to quantitatively analyze the contents of three fatty acids (palmitic, linoleic, and stearic) in the latex of C. pilosula . The ideal extraction conditions involve injecting 20 μL of dodecanol extractant into a 5 mL 10% NaCl solution at pH 3.0, followed by 20 min at 700 rpm. The three components mentioned above have enrichment coefficients ranging from 48 to 50. The quantification limits were between 0.23 and 0.25 μg/mL, and three components demonstrated good linearity in their respective linear ranges (R 2 > 0.995). The satisfied precision and recovery rates were 1.26 to 8.05% and 92.38 to 101.53%, respectively. By quantitatively analyzing the three fatty acid contents in the latex of C. pilosula , the results showed that palmitic and linoleic acids were able to successfully distinguish the latex of C. pilosula from different parts, which laid the foundation for the quality evaluation of C. pilosula , and provided a reference for the utilization of C. pilosula , a medicinal food source.
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POLYMER
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2026
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IF 5.1
Yunlong Xu,Zhibo Zhao,Yanan Li,Yiwen Yang,Wenbo Wang,Le Zhang,Long Yu
A new methodology to fabricate the compatibilizer for PLA/PBAT blends through ring-opening polymerization of lactide using hydroxyl-terminated PBAT (HO-PBAT-OH) as macro-initiator in a high-shear reactor was developed. The modified polylactic acid (PLA-b) with weight-average molecular weights ( M w ) in the range of 1.42 × 10 5 to 2.96 × 10 5 Da were synthesized using 1%∼4% content of HO-PBAT-OH with M w of 4.86 × 10 5 Da. FTIR and NMR spectroscopy confirmed the covalent attachment of PBAT segments to the PLA backbone through ester linkages, establishing a well-defined block architecture. This block structure substantially improved the interfacial compatibility between PLA-b and PBAT, as evidenced by a refined morphology with reduced PBAT domain sizes and enhanced interfacial adhesion. DSC and DMA revealed a convergence of the glass transition temperatures ( T g ) of the two constituent polymers, indicating the improved miscibility. Rheological measurement also confirmed the improvement of miscibility through presenting a more coherent viscoelastic response. Notably, PLA-b/PBAT blends at a 70/30 wt% ratio exhibited a superior balance of mechanical properties compared to a conventional PLA/PBAT physical blend of the same composition, delivering a tensile strength of 42.6 MPa, an exceptional elongation at break of 280% and impact strength of 28.11 kJ/m 2 . This approach provides a simple and economically viable route to high-performance PLA/PBAT blends with an optimized combination of strength and ductility.
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Gels
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2026
·Vol. 12
·期 8
·707
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IF 6.4
Haiquan Zhang,Zhinan Zhao,Shishen Lan,Qiadong Yao,Minglei Lv,Ning Wang
Liquid water in hydrogels exhibits an adsorption-desorption dynamic equilibrium with the surrounding environment, which leads to the instability of mechanical properties. To address this limitation, we propose an innovative design of conductive composite organogels by incorporating compatible linear lauryl alcohol (LA) and multi-walled carbon nanotubes (CNTs) into a poly(butyl methacrylate) (PBMA) network. Carbon chains of LAform physical crosslinks with PBMA side chains, effectively replacing inherent polymer chain entanglements. This structural innovation facilitates rapid chain rotation and sliding during stretching, so that the gel has a super stretching property of up to 2460%. At elevated temperatures, weakened interactions between LA–PBMA and PBMA–PBMA chains reduce physical confinement of CNTs within the PBMA network. Simultaneously applying a directional electric field, CNTs undergo rotation and translation to reconstruct an optimized conductive pathway, granting the composite distinctive temperature-sensitive electrical conductivity. Critically, all components in the PBMA/LA/CNTs (PLCs) exhibit low volatility and hydrophobicity. These characteristics enable the organogel to retain excellent flexibility and stable electrical performance after prolonged immersion in deionized water, exposure to vacuum, and even under extreme conditions at 120 °C. Such comprehensive stability suggests promising applications in deep-sea exploration and aerospace engineering.
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Journal of Physical Chemistry C
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2025
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IF 3.2
Xuebiao Deng,Yilan Zhang,Guoying Yao,Huai Chen,Liang Zhao,Tao Zeng,Zhenyu Yang
The surface modification of hydride-terminated silicane (HSi) via thermal alkoxylation is experimentally demonstrated for the first time. Using two types of alcohol (butanol and dodecanol), alkoxyl groups are successfully grafted onto HSi through a mild thermal process, preserving the two-dimensional (2D) structure of HSi. Spectroscopic characterization confirms the formation of Si–O linkages, and electron microscopy reveals intact morphologies of alkoxylized silicane. These alkoxylated silicanes exhibit a distinct blue shift in photoluminescence (PL) emission and significantly faster PL decays compared to those of pristine HSi. Temperature-dependent PL measurements and density functional theory calculations reveal that the green emission of HSi arises from radiative recombination at an indirect band gap, whereas the blue emission of alkoxy-terminated silicane originates from surface trap states introduced by alkoxylation.
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JOURNAL OF FOOD ENGINEERING
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2025
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IF 5.8
Qiwen Chen,Yulun Chen,Qingrun Liu,Shaofeng Yuan,Hang Yu,Weirong Yao
Monitoring cold chain temperatures is essential for ensuring the safety of food, the efficacy of drugs, and the stability of vaccines. However, existing methods face challenges, including the lack of real-time monitoring, concerns over data accuracy, and environmental interference. To resolve these challenges, a kind of thermochromic materials (TCMs) was developed to undergo phase changes above a specific threshold of −18 °C. These TCMs were synthesized with a precise mass ratio of organic solvents, comprising 96 % undecane and 4 % n-dodecanol. The TCMs were applied as coatings on paper to generate Quick Response (QR) codes, intended for identifying real-time temperature fluctuations. Exposure to temperatures exceeding −18 °C for an extended period induced fading and blurring in QR code patterns, rendering them unrecognizable even upon reversion to −18 °C or below. The visual response system can be employed for dynamic, intelligent temperature monitoring within cold chain logistics.
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JOURNAL OF CONTROLLED RELEASE
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2026
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IF 12.4
Yu Han,Guohua Ma,Kai Zhang,Runcai Xu,Ning Xin,Jingtong An,Ning Wang,Yantao Li
Lipid nanoparticles (LNPs) have emerged as a powerful nanoplatforms contributing to the success of mRNA vaccines. However, the rational design of lipid structures and the optimization of LNP composition, especially via metal-based adjuvants to boost extrahepatic delivery and immune responses, represent a promising yet technically challenging strategy. Herein, we developed a Zn(II)-adjuvanted imidazole-based LNP system that integrates rational lipid design with metal-coordinated self-assembly to achieve synergistic enhancement in delivery and immunogenicity. Initially, a library of 28 imidazole-based ionizable lipids was synthesized and screened, identifying A10–1 LNPs with a well-balanced lipid composition and high transfection efficiency. Furthermore, Zn 2+ coordination with the imidazole headgroup imparts Zn-A10–1 LNPs with enhanced structural stability and delivery performance, leading to improved cellular uptake, efficient endosomal escape, and preferential accumulation in the spleen. These attributes contributed to the robust activation of bone marrow-derived dendritic cells (BMDCs), induced memory T cell responses, and elevated proinflammatory cytokine secretion. In a melanoma model, vaccination with Zn-A10–1 LNPs markedly suppressed tumor progression and promoted the infiltration of OVA-specific CD8 + T cells. Overall, this study underscores the potential of Zn(II)-coordinated LNPs as effective nanoplatforms for extrahepatic mRNA vaccine delivery, offering a promising strategy for the mRNA-based vaccine design and immunotherapies.
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FOOD CHEMISTRY
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2022
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IF 9.231
Wenjuan Zhu,Pingning Jin,Hongrui Yang,Fei Li,Chen Wang,Tiemei Li,Jing Fan
Antioxidants, widely utilized in the food packaging field, have a risk of migrating into foodstuffs and eventually entering the human body. In this work, a novel method was established for green extraction and determination of antioxidants in food simulants migrated from plastic packaging materials. It was found that the antioxidants could be extracted directly from food simulants by in-situ formation of hydrophobic deep eutectic solvents with low toxic medium-chain fatty alcohols. Under the optimal conditions, the limit of detection was 0.15 to 0.25 µg/L, and the limit of quantification was 0.5 to 1.0 µg/L for the antioxidants. The extraction reaches equilibrium in 2 min. Importantly, butylated hydroxytoluene was detected in two types of the surveyed food contact materials. The established method shows high sensitivity, high enrichment factor, and strong anti-interference ability, and can be used for the separation and enrichment of ultra-trace antioxidants in foodstuffs.
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MICROCHEMICAL JOURNAL
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2022
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IF 5.304
Meichao Liao,Lin Yang,Xiaoyue Yang,Erxu Wang,Bin Lu,Jiye Wang,Li Duan
A novel green vortex-assisted liquid–liquid microextraction based on hydrophobic deep eutectic solvents (VALLME-HDES) technique was developed and applied to the urinary excretion study of Taraxacum mongolicum (TM) extract in rats. Deep eutectic solvent (DES), a less toxic extraction phase, was formed by camphor and 1-hexanol at a molar ratio of 1:2. The key factors affecting the extraction efficiency of the VALLME-HDES method, such as DES volume, vortex time, molar rations of camphor and 1-hexanol, and amount of salts, were systematically examined through one-factor-at-a-time strategy. Under optimum conditions, the developed method exhibited a good linearity (r ≥ 0.9994). The acceptable precision and repeatability were less than 1.10 % and 4.78 %, respectively. Recoveries from urine samples spiked at different concentration levels were 80.0–89.5 % (RSD ≤ 4.78 %). To further investigate the applicability and effectiveness of hydrophobic DES, the validated method was applied to the urinary excretion study of two flavone aglycones in rats after oral administration of the TM extract. The average 48 h cumulative urinary excretion of luteolin and diosmetin accounted for 0.12 % and 1.71 % of the respective administered dose. In addition, the greenness of the proposed method was assessed using the Analytical GREEnness (AGREE) tool. All these results indicated that the proposed method was feasible and efficient, which had great development potential for pharmacokinetic studies and clinical sample analysis.
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Frontiers in Microbiology
·
2023
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IF 5.2
Song Wei,Xin Jiaying,Yu Chong,Xia Chungu,Pan Yu
Ferulic acid (FA) is a natural antibacterial agent rich in plants, FA has excellent antioxidant and antibacterial properties. However, because of its short alkane chain and large polarity, FA is difficult to penetrate the soluble lipid bilayer in the biofilm to enter the cell to play an inhibitory role, limiting its biological activity. To improve the antibacterial activity of FA, with the catalytic condition of Novozym 435, four alkyl ferulic acid esters (FCs) with different alkyl chain lengths were obtained by fatty alcohols (including 1-propanol (C3), 1-hexanol (C6), nonanol (C9), and lauryl alcohol (C12)) modification. The effect of FCs on P. aeruginosa was determined by Minimum inhibitory concentrations (MIC), minimum bactericidal concentrations (MBC), Growth curves, alkaline phosphatase (AKP) activity, crystal violet method, scanning electron microscopy (SEM), membrane potential, PI, cell contents leakage. Results showed that the antibacterial activity of FCs increased after esterification, and the antibacterial activity significantly increased and then decreased with the extension of the alkyl chain of the FCs. Hexyl ferulate (FC6) showed the best antibacterial activities against E. coli and P. aeruginosa (MIC for E. coli was 0.5 mg/ml, MIC for P. aeruginosa was 0.4 mg/ml). And Propyl ferulate (FC3) and FC6 showed the best antibacterial activities S. aureus and B. subtilis (MIC for S. aureus was 0.4 mg/ml, The MIC of B. subtilis was 1.1 mg/ml). In addition, the growth, AKP activity, bacterial biofilm, bacterial cell morphology, membrane potential and cell contents leakage of P. aeruginosa after different FCs were investigated, which found that FCs could damage the cell wall of P. aeruginosa and showed different effects on the P. aeruginosa cell biofilm. FC6 showed the best inhibition on the biofilm formation of P. aeruginosa cells, which caused the surface of P. aeruginosa cells to be rough and wrinkled. Some P. aeruginosa cells showed aggregation and adhesion, even rupture. The membrane hyperpolarization was obvious, which appeared as holes, leading to cell contents leakage (protein and nucleic acid). All these results concluded that the antibacterial activities FCs against foodborne pathogens depended on different fatty alcohol esterification of FA. FC6 showed the best inhibition on P. aeruginosa due to its effect on P. aeruginosa cell walls and biofilms and the leak of the cell contents. This study provides more practical methods and a theoretical basis for giving full play to the bacteriostatic effect of plant FA.
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