Food Analytical Methods
·
2026
·Vol. 19
·期 10
·307
·
IF 3
Zhai Yu-Mei,Liao Yongcheng,Li Hong,Xiang Hui-dan,Wu Weiwei,Gong Min,Tang Xiao-Juan,Liu Yun-Guo
In this study, a model was utilized employing headspace-solid phase microextraction-gas chromatography-mass spectrometry, headspace-gas chromatography-ion mobility spectrometry, electronic nose, and electronic tongue technologies integrated with the random forest method to identify and analyze the flavor characteristics of seven different varieties of honeysuckle. The results indicated that there are significant differences in the types and concentrations of volatile compounds among different varieties of honeysuckle. Except for the overlap between Little Maohua and Leaf Qi samples, the other samples could be effectively distinguished. Combined analysis using headspace-solid phase microextraction-gas chromatography-mass spectrometry and headspace-gas chromatography-ion mobility spectrometry identified linalool as a key compound significantly contributing to the characteristic aroma of honeysuckle. Additionally, the content of amino acids and sugars showed a positive correlation with the taste characteristics of honeysuckle. This study not only provides a multi-dimensional analysis method for the quality evaluation of honeysuckle but also offers a solid foundation for variety identification and quality control, which is of great significance for the development and utilization of honeysuckle resources. Graphical
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CHINESE JOURNAL OF POLYMER SCIENCE
·
2026
·
IF 4.6
Zhang Yu-Tong,Dai Xiao,Deng En-Ting,Zhang Li-Li,Zheng Ting,Shen Jun
As one of the most popular polysaccharide derivatives with high chiral recognition ability, cellulose tris(3,5-dimethylphenylcarbamate) (CDMPC) has been successfully applied in the enantioseparation of a wide range of racemates for various purposes. However, the derivative is usually synthesized with an amorphous structure, and its effect on enantioseparation ability remains obscure. To obtain a better understanding of the correlation between its structure and enantioseparation ability, in this study, CDMPC derivatives with crystalline and amorphous structures were prepared through carbamoylation followed by anti-solvent precipitation. Their chiral recognition abilities were evaluated using high-performance liquid chromatography (HPLC) with chiral stationary phases (CSPs). Interestingly, the ordered arrangement of the helical polymer chains of CDMPC was effectively induced by the aromatic solvent after derivatization, forming a crystalline derivative ( c-CDMPC ) with a uniform and compact worm-like morphology, whereas the amorphous derivative ( a-CDMPC ) was obtained by regular treatment with a polar alcoholic solvent. The c-CDMPC –based CSP exhibited higher chiral recognition abilities with much shorter retention times for most racemates in this study, compared to the a-CDMPC –based CSP. In particular, flavanone ( Rac-7 ), an important chiral drug with anti-inflammatory, anti-tumor, and cardiovascular protective activities, was even better resolved with higher enantioselectivity on crystalline c-CDMPC than on Chiralcel OD, a commercialized chiral column based on CDMPC. This indicates that the crystalline ordered arrangement played a critical role in the chiral recognition ability of the cellulose derivative.
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ChemistrySelect
·
2026
·Vol. 11
·期 30
·e74054
·
IF 2.3
Jiali Xiao,Longsheng Zhou,Dangqin Jin,Yuechen Shi,Zhangxu Chen
NiCo-LDH catalysts with different Ni/Co molar ratios were synthesized via the hydrothermal method. The crystal structure, microstructure, and pore characteristics of the samples were characterized by x-ray diffraction, scanning electron microscopy and N 2 adsorption-desorption techniques. Taking tetracycline as the target pollutant, the performance and influencing factors of TC degradation by peroxymonosulfate catalyzed by NiCo-LDH were systematically investigated, and the degradation mechanism was revealed by free radical quenching experiments. The results showed that when the Ni:Co molar ratio was 1:2, NiCo-LDH exhibited a typical layered structure with a specific surface area of 136 m 2 g −1 and the optimal catalytic activity. Under the conditions of 25°C, pH = 7.02, and PMS dosage of 0.06 mmol, TC was completely degraded within 15 min. The catalytic system showed high degradation efficiency in the pH range of 5–9, and the synergistic effect of four free radicals (SO 4 · − ,·OH, 1 O 2, and O 2 · − ) was the main reason for TC degradation. The granular NiCo-LDH catalyst prepared by inverse suspension polymerization had a catalytic degradation rate of 88.3%, solving the recovery problem of powder catalysts. As a PMS activation catalyst, NiCo-LDH has a good application prospect in antibiotic wastewater treatment. Graphical Optimized NiCo-LDH powder efficiently activates peroxymonosulfate via reversible Ni 2 + /Ni 3 + and Co 2 + /Co 3 + redox cycles. Four reactive oxygen species synergistically achieve over 90% tetracycline removal within 15 min across a broad pH range, and porous polymer-immobilized microspheres enable convenient recovery for practical antibiotic wastewater treatment.
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JOURNAL OF MATERIALS SCIENCE
·
2026
·Vol. 61
·期 35
·26130-26141
·
IF 4.4
Zhang Liheng,Miao Huaibin,Li Fangfei
Microporous SAPO-34 molecular sieves are prone to rapid deactivation due to coke deposition in the methanol-to-olefins (MTO) reaction, primarily because of diffusion limitations. To address this issue, we propose a metal–organic framework (MOF)-assisted one-step hydrothermal synthesis strategy. For the first time, UiO-66 is introduced into the SAPO-34 synthesis system, successfully constructing SAPO-34 crystals with a stepped, special morphology. The results indicate that the addition of UiO-66 causes the samples to gradually aggregate and stack, forming an abundant hierarchical pore structure. Meanwhile, Zr species are incorporated into the molecular sieve framework, which effectively modulates the acidic properties by significantly reducing the strength of the strong acid sites. When applied to the MTO reaction, the UiO-66-modified SAPO-34 exhibits a significantly prolonged catalytic lifetime and enhanced selectivity towards light olefins (ethylene and propylene) compared to the unmodified SAPO-34. This enhanced performance is attributed to the abundant hierarchical pores providing rapid diffusion channels, and the reduced acid strength retarding coke deposition. This study provides a new design strategy for the one-step construction of hierarchical pore structures coupled with the introduction of metal species to regulate acidity.
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Food Science & Nutrition
·
2026
·Vol. 14
·期 8
·e72200
·
IF 5
Fanke Zeng,Yuxiang Zhu,Xiaoyan Li,Ruyi Li,Lei Pan,Yaping Dai,Shaodan Peng,Lei Fang,Jihua Li,Wei Zhou
Litchi seeds are by-products produced from the fruit consumption, which contain rich phenolic compounds and have been traditionally used in inflammatory pain relief. This study sought to reveal phenolic profiles in the litchi seeds from different cultivars and explore their contributions to anti-inflammatory, analgesic potentials. Purified polyphenols were derived from five cultivars of litchi seeds, including Baitangying (BTY), Baila (BL), Feizixiao (FZX), Heiye (HY), and Huaizhi (HZ). Fifteen flavonoids, two phenolic acids, one coumarin, and two tannins were characterized using UPLC-Q/TOF-MS, while procyanidin A 1 , procyanidin A 2 , and phlorizin were identified as major phenolic compounds in HPLC. HY contained relatively higher phenolic contents. The polyphenols from different cultivars effectively inhibited LPS-induced generation of ROS, NO, IL-6, TNF- α , and PGE 2 in RAW 264.7 macrophages, which was tightly associated with the contents of procyanidin A 1 , procyanidin A 2 , and phlorizin. Procyanidin A 1 played a relatively significant role, which could strongly bind to iNOS, COX-2 and their mixture with procyanidin A 2 and phlorizin exhibited better effect in the NO inhibition. Furthermore, the litchi seed polyphenols were demonstrated to inhibit xylene-induced ear edema and acetic acid-induced abdominal writhing in mice. Thus, the litchi seed polyphenols possessed potentials to be utilized as anti-inflammatory and analgesic agents.
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Microorganisms
·
2026
·Vol. 14
·期 8
·1647
·
IF 4.7
Ding Li,Haozheng Li,Shu Zhang,Tong Wu,Dongyang Ye,Yaping Jin
The Qinghai–Tibet Plateau presents extreme environmental challenges, including hypobaric hypoxia and nutritional scarcity, to which indigenous yaks (Bos grunniens) are remarkably adapted, whereas introduced Holstein cattle (Bos taurus) often exhibit severe maladaptation. This study compared the gut microbiota of grazing yaks (n= 20) and feedlot Holstein cattle (n= 20) under high-altitude conditions using 16S rRNA gene amplicon sequencing (for community composition) and shotgun metagenomic sequencing (for direct functional profiling of CAZy, COG, and KEGG pathways), combined with in vitro fermentation, digestive enzyme assays, and serum immune- and growth-related indicators. Results: The yak gut microbiota was dominated by Proteobacteria (35 ± 4%) and Actinobacteria (15 ± 2%), whereas Holstein cattle were dominated byFirmicutes(40 ± 4%) andBacteroidetes(25 ± 3%). At the species level, NR-based metagenomic annotation suggested that Acinetobacter-related taxa, putatively assigned as Acinetobacter pseudolwoffii and A. lwoffii, were abundant in yaks. Functional profiling revealed that the yak microbiota was enriched in CAZy families CE1, GT2, and GT4, whereas the feedlot Holstein cattle microbiota showed enrichment of several KEGG orthologs related to multidrug efflux and carbohydrate transport, including dinF/mepA/vmrA and susC/susD. In vitro fermentation using enriched culturable fecal bacterial consortia showed higher dry matter digestibility and digestive enzyme activities in yak-derived consortia than in Holstein-derived consortia. For serum immune indicators, IgG was significantly higher in feedlot Holstein cattle, whereas IgA and IgM did not differ significantly between groups. Yaks showed higher serum levels of TNF-α, IL-6, TGF-β1, IL-4, IL-10, and IL-13, but lower IL-1β. Conclusions: These findings indicate that divergent gut microbiota configurations are associated with contrasting physiological profiles (e.g., digestive and immune functions) in grazing yaks and introduced feedlot Holstein cattle under the same high-altitude environment. However, due to the confounding effects of diet and management system, causal relationships cannot be inferred from this comparative study.
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CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Hongjuan Zhao,Chenxi Zhao,Yuting Cang,Jinpei Sun,Qing Li,Keyu Zong,Yajing Wang,Di Meng,Qingling Song,Lei Wang
Constructed a novel bacteria-inspired mechano-chemical dual-adjuvant nanovaccine (F-PEI/Si@TEV). • Biomimetic stiff surface activates YAP/TAZ mechanotransduction to boost DC phagocytosis and metabolic reprogramming. • F-PEI triggers TLR4 chemical signaling and facilitate lysosomal escape for efficient antigen cross-presentation. • Combined mechano-chemical cues co-orchestrate multiple signaling axes for enhanced antitumor immunity. Despite dendritic cell (DC)-centered antitumor vaccines hold great promise, conventional nanovaccines severely suffer from the uncoupled mechanical and chemical cues, which leads to insufficient DC phagocytosis, suboptimal DC activation, and compromised antigen cross-presentation, thereby limiting their therapeutic efficacy. Herein, we engineer a bacteria-inspired mechano-chemical dual-adjuvant nanovaccine (F-PEI/Si@TEV) via cryogenic silicification of thermal-shocked tumor-derived extracellular vesicles (TEVs), which encapsulates full tumor antigens within silica shells and is surface-modified with fluorinated polyethyleneimine (F-PEI). The nanovaccine possesses a stiff and rough surface mimicking bacterial physical characteristics, promoting DC phagocytosis and metabolic reprogramming through YAP/TAZ-mediated mechanotransduction. Meanwhile, the F-PEI layer serves as a pathogen-mimetic biochemical agonist to trigger TLR4 signaling and enable lysosomal escape for enhanced antigen cross-presentation. Notably, the integrated nanovaccine further orchestrates the TNF, PI3K-Akt, and NF-κB signaling networks to achieve full-scale DC maturation and T-cell activation. In vivo, F-PEI/Si@TEV elicits robust and systemic antitumor immunity, effectively suppressing tumor growth and lung metastasis in both prophylactic and therapeutic tumor models. This work establishes an integrated mechano-chemical immunomodulatory platform for synchronous DC activation and antigen delivery, offering a universal and translatable strategy for next-generation potent cancer nanovaccines.
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ACS Applied Polymer Materials
·
2026
·Vol. 8
·期 14
·12068-12079
·
IF 5.2
Chen Tao,Li Shuangjiang,Wang Bo,Yang Zhen,Xu Zhiyong,Zhao Wenbo
A highly potent greenhouse gas, sulfur hexafluoride (SF 6 ), requires efficient capture from industrial SF 6 /N 2 mixtures. Herein, a series of benzene-rich hyper-cross-linked
polymers (PPBx) were synthesized via a low-cost Friedel–Crafts
alkylation reaction using α,α ′ -dichloro- p -xylene (DCX) and triphenylbenzene (TPB) at different molar
ratios. The abundant benzene rings in the material enable strong F–π
interactions with SF 6 , while the hierarchical micromesoporous
structure ensures high adsorption capacity. Adsorption tests revealed
that PPB1, fabricated at a DCX/TPB molar ratio of 3:1, achieved a
remarkably high SF 6 uptake of 2.05 mmol/g at 298 K and
1 bar and an impressive SF 6 /N 2 ideal adsorbed
solution theory selectivity of 120 at 298 K. In addition, the dynamic
separation performance for SF 6 /N 2 was up to
1274.6 s/g, also demonstrating excellent properties under actual operating
conditions. The PPB1 material also demonstrates excellent thermal
stability and cycling performance. This work provides a cost-effective
and highly efficient hyper-cross-linked polymeric adsorbent with high
potential for industrial SF 6 separation and recovery.
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Small Methods
·
2026
·
IF 8.7
Yulin Cai,Dunren He,Yaocheng Yang,Yunfan He,Dongmei Liu,Liujia Liu,Biao Gao,Zijun Kang,Huihui Huang
Hydrovoltaic energy harvesting offers a promising approach for self-powered electronics, but practical applications remain limited by insufficient output performance, challenges in scalable integration, and incomplete mechanistic understanding. Here, asymmetric carbon-film hydrovoltaic generators with work-function-correlated output are reported for both liquid-water and hydrogel-assisted moisture operation. A single liquid-water carbon-film hydrovoltaic generator (C-HEG) delivers ≈1.1 V and 450 µA cm − 2 , while a hydrogel-assisted carbon-film moisture-electric generator (C-MEG) delivers ≈1.0 V and 350 µA cm − 2 under ambient humidity. Modular integration scales the voltage up to ≈92 V and enables milliampere-level output currents, demonstrating the feasibility of scalable energy harvesting and power supply for small electronics. Quantitative UPS/KPFM analyses, together with comparative equivalent-circuit modeling, reveal a consistent correlation between the initial output voltage and the work-function contrast, indicating that work-function contrast can serve as a measurable descriptor of electronic asymmetry. The observed output is associated with the coupled effects of electronic asymmetry, water-mediated interfacial charging/electric-double-layer development, and hydrated-ion transport. These results suggest that electronic-structure-guided interfacial engineering may assist the optimization of asymmetric carbon-film hydrovoltaic generators for scalable self-powered and wearable electronics.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Zhifang Liu,Le Liu,Kunxiang Deng,Jiejun Li,Caiyu Ge,Xiang Ye,Yixi Xie,Pengcheng Zhao,Junjie Fei
Cotton-derived carbon coupled with Ce-doped ZnO via in-situ pyrolysis. • Portable Ce-ZnO-CNF@CC/SPE sensor was developed for on-site CPZ detection. • DFT verified optimized electronic structure and accelerated charge transfer. • Ultrasensitive response with a low limit of detection. • Reliable recovery in real samples for environmental monitoring. On-site monitoring of the emerging organic pollutant chlorpromazine (CPZ) is severely limited by the absence of low-cost, portable, and high-performance sensors. Herein, a disposable screen-printed sensor (Ce-ZnO-CNF@CC/SPE) was fabricated by in-situ growing Ce-doped ZIF-8 on cotton-derived carbon, followed by a one-step pyrolysis strategy. Density functional theory (DFT) calculations confirmed that trace Ce doping induces robust p-d-f orbital hybridization with the host lattice without structural disruption. The introduction of Ce 4f impurity levels narrows the band gap and significantly elevates the density of states near the Fermi energy. This robust electronic modulation accelerates charge-transfer kinetics and optimizes the CPZ adsorption affinity. Under optimized conditions, the fabricated sensor exhibited a remarkably broad linear range and an ultra-low limit of detection, along with excellent anti-interference, reproducibility, and stability. Furthermore, highly accurate and reliable recoveries were achieved in complex real-world matrices, including human serum and environmental water samples. This work provides a reliable portable platform for on-site CPZ monitoring and establishes an electronic structure-activity paradigm for designing highly dispersed, biomass-derived carbon-based sensors. Download: Download high-res image (151KB) Download: Download full-size image
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2026
·
IF 9.6
Hui Liu,Rong Lin,Yi Wu,Zhihao Huang,Yuchang Shen,Xuanxuan Lin,Nan Li,Shaoda Huang,Qipeng Li,Jinjie Qian
The rational design and facile synthesis of non‑platinum carbon catalysts with high energy conversion efficiency remain a core challenge in electrocatalysis. To address this, we successfully constructed a unique shell-in-shell catalyst through a phytic acid (PA) etching and secondary pyrolysis strategy, designated as CZIF-PA-Fe 2 P/NC. In this process, PA not only drives the selective etching of cubic ZIF-8 nanocrystals but also serves as an in situ phosphorus source to induce the uniform nucleation of highly active Fe 2 P nanoparticles embedded in ZIF-derived N,P-codoped carbon nanoboxes. Consequently, the obtained CZIF-PA-Fe 2 P/NC catalyst achieves an excellent oxygen reduction reaction (ORR) half-wave potential of 0.914 V, and maintains a 96.73% current retention over a 30-h stability test. When assembled into zinc-air batteries, the device delivers a peak power density of 157.58 mW cm −2 , a specific capacity of 795.76 mAh g −1 , and long-term cycling stability surpassing that of 20 wt% Pt/C. Finally, density functional theory calculations reveal that the synergistic electronic modulation between the N,P-codoped carbon substrate and Fe 2 P promotes an upward shift of the Fe d -band center, thereby optimizing the adsorption of key *OOH intermediates and significantly reducing the energy barrier of the rate-determining step. This work establishes a precise morphology design and interface engineering paradigm for developing cost-effective, high-performance metal-organic framework-derived non-noble-metal carbon electrocatalysts for energy conversion and storage applications. The selective etching of phytic acid not only endows the material with abundant pore diameters to enhance mass transfer but also serves as an in-situ phosphorus source to promote the uniform nucleation of highly active Fe 2 P nanoparticles. By employing PA-induced etching, shell-in-shell carbon catalysts were successfully fabricated to exhibit satisfactory oxygen reduction. Download: Download high-res image (196KB) Download: Download full-size image
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Journal of Water Process Engineering
·
2026
·
IF 6.6
Mu Yang,Yingdan He,Yuxuan Chen,Jiatong Jiang,Xinru Kong,Kejian Ding
A humic substance/Ti 3 C 2 /ZnO composite was developed to enhance photoelectrocatalytic degradation of tetracycline. • Humic substances derived from livestock manure and straw promoted tetracycline enrichment and interfacial electron transfer. • The integrated system removed 95.2% of tetracycline in water and achieved effective degradation in soil. • The degradation process is governed by coupled adsorption enrichment and in situ photoelectrocatalysis. The challenge of degrading tetracycline (TC) in nature was addressed herein by developing a photoelectrocatalytic system using a humic substance (HS)-modified Ti 3 C 2 /ZnO nanocomposite. The HS which was extracted from animal organic waste facilitated the spontaneous physical adsorption of TC and promoted electron transfer. Concurrently, the Ti 3 C 2 /ZnO Schottky junction enhanced separation of photogenerated electron-hole pairs. This synergy resulted in a TC removal efficiency of 95.2% in aqueous solution within 100 min, and 40.2% in simulated soil environments. Combined with theoretical calculations, the underlying degradation mechanism was elucidated. This study presents a green and efficient strategy for antibiotic remediation utilizing natural organic waste. Download: Download high-res image (156KB) Download: Download full-size image
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危险品化学品经营许可证（带存储）