TALANTA
·
2026
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IF 6.7
Xianglin Liao,Yanxia Ma,Bingni Huang,Dehui Yang,Yiying Liang,Xixiang Yang,Junhua Li,Li Wang,Xiaogang Hu
Enrichment and detection of trace antibiotics in complex matrices are challenged by severe matrix interference and low analyte abundance. Herein, a synergistic recognition interface was engineered on magnetic imprinted polymers by integrating acryloyl-calix[4]arene (AC[4]A) and aptamer (Apt). This dual-receptor interface exploits complementary binding modes to specifically recognize enrofloxacin (ENR). Specifically, AC[4]A captures the hydrophobic moiety of ENR via host-guest inclusion, while the aptamer targets its aromatic/carboxyl groups through hydrogen bonding and π-π stacking. Multimodal analyses ( 1 H NMR, CD, molecular docking, and MD simulations) reveal spatially distinct binding sites. Molecular docking indicates a synergistic enhancement of −2.9 kcal/mol in the ternary complex relative to binary sums, while MD simulations reveal that the cooperativity arises from entropy-driven conformational adaptation and interface complementarity. Moreover, the imprinted framework stabilizes the aptamer, retaining >80% extraction capacity after DNase I treatment. With an imprinting factor (IF) of 8.5 and a synergistic recognition factor (SRF) of 1.5, this dual-receptor interface demonstrates a clear “1 + 1>2” effect and the resulting method offers a wide linear range (2.5-300 μg/L) with a low detection limit (0.42 μg/L), well below regulatory limits. Applied to the enrichment and analysis of animal-derived samples, it significantly reduces matrix interference with recoveries of 83.3-98.2%. This dual-receptor strategy provides a reliable and sensitive platform for trace antibiotic enrichment and detection in complex matrices.
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高影响因子
INTERNATIONAL BIODETERIORATION & BIODEGRADATION
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2026
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IF 4.4
Fuyu Song,Jiaxi Liu,Qi Wu,Aiqin Diao,Yinhu Jiang,Xin Yan,Na Li,Jian He,Jiguo Qiu
An efficient Rhodococcus sp. YQ-4 strain degraded 98% of 2-ABT within 24 h. • A new intermediate metabolite (2-hydroxybenzothiazole) was identified. • A novel 2-ABT biotransformation pathway was proposed. • Biodegradation of 2-ABT was a detoxification process. 2-Aminobenzothiazole (2-ABT), a representative heterocyclic compound originating from tire wear particles, was widely detected in diverse environmental matrices. Due to its persistence and potential toxicity, the removal of 2-ABT from contaminated environments has become an increasing environmental concern. However, studies on the efficient biodegradation of 2-ABT by pure cultures remain limited. In this study, the abundance of Rhodococcus increased significantly following enrichment and acclimation. Subsequently, a 2-ABT-degrading pure culture, designated Rhodococcus sp. YQ-4, was isolated. Under the optimal conditions of pH 7.0, 1% NaCl, and 30 °C, strain YQ-4 achieved a removal rate of 98% for 50 μM 2-ABT within 24 h. A key metabolic intermediate, 2-hydroxybenzothiazole (2-OBT), was identified by liquid chromatography-time-of-flight mass spectrometry (LC-TOF-MS). Based on these results, a possible initial biotransformation pathway involving deamination and hydroxylation at the C2 position of the thiazole ring was proposed. Furthermore, toxicity bioassays involving the green alga Chlamydomonas ellipsoidea and mung bean ( Vigna radiata ) demonstrated that the biodegradation of 2-ABT by strain YQ-4 significantly alleviated its phytotoxicity, thereby restoring the growth and physiological vigor of the test species. Collectively, this study provided a novel bacterial resource for the bioremediation of 2-ABT-contaminated environments and offered new insights into the catabolic pathway associated with emerging pollutants.
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PEST MANAGEMENT SCIENCE
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2026
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IF 4.2
Bo Luo,Yanbing Wu,Lu Yu,Ruxin Han,Wenjing Niu,Zhanghan Gao,Huanxi Cui,Xiaoyang Zhao,Dan Li,Xiaoyu Feng,Yuting Han,Qiuqin Li,Yihan Hu,Lailiang Qu
BACKGROUND Plant diseases caused by various pathogenic fungi significantly reduce productivity and threaten food safety. Chemical fungicides remain a cornerstone in the management of fungal infections afflicting crops. In search for more potent succinate dehydrogenase inhibitors (SDHIs) for crop protection, a series of novel indoline-containing pyrazole-4-carboxamide derivatives were designed and synthesized. RESULTS The assay results indicated that the majority of compounds incorporating a benzyl group displayed remarkable antifungal efficacies. Notably, compound 6j emerged as a standout, exhibiting the highest potency against Rhizoctonia solani , with a half-maximal effective concentration (EC 50 ) of 0.04 μg mL −1 , surpassing Boscalid (EC 50 = 0.40 μg mL −1 ) and Fluxapyroxad (EC 50 = 0.06 μg mL −1 ). Furthermore, compound 6i showed potent antifungal effects against Sclerotinia sclerotiorum and Valsa mali , with EC 50 values of 1.79 μg mL −1 and 3.54 μg mL −1 , respectively. In vivo tests confirmed that compound 6j effectively inhibited the growth of R. solani on rice leaves, while compound 6i suppressed S. sclerotiorum on oilseed rape and V. mali on apple fruits. Further antifungal mechanism studies revealed that compound 6j shared a similar mode of action with Fluxapyroxad. CONCLUSION These findings indicated that compounds 6j and 6i could serve as promising SDHI candidates for crop protection, warranting further investigation. © 2026 Society of Chemical Industry.
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高影响因子
Food and Bioprocess Technology
·
2026
·Vol. 19
·期 7
·351
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IF 5.6
Sheng Jie,Song Shuxuan,Wang Wenbo,Zhang Jialong,Wang Jiaxin,Chen Ziyi,Sun Maoquan,Huang Honghua,Song Yishan
This study utilised microfibrillated cellulose (MFC) and acetylated starch (AS) as structural frameworks, with 4- terpineol (4-TA) serving as the antimicrobial agent. A multifunctional biodegradable aerogel with water absorption, antibacterial, cushioning and slow-release properties has been developed as a freshness-preserving pad for fruit and vegetables. The system analysed the effects of different mass ratios of MFC/AS on the density, porosity, mechanical properties, water absorption rate, and oil absorption rate of aerogels. Additionally, the release characteristics, antibacterial properties, and biodegradability of the aerogel were investigated. The results indicate that, the aerogel with a MFC/AS mass ratio of 1:3 has the best comprehensive performance, exhibiting a compressive strength of 0.030 ± 0.002 MPa and an springiness of 0.577 ± 0.031. It also exhibits exceptional water and oil absorption capacities, reaching 1549.40 ± 38.29% and 3887.33 ± 86.56%, respectively. Moreover, it also exhibits fine sustained-release properties, antibacterial performance and biodegradability. Following 240 h of release, more than 50% of 4-TA remained encapsulated within the aerogel. The inhibition zone diameters against Escherichia coli and Staphylococcus aureus were 30.37 ± 1.25 mm and 32.25 ± 1.04 mm, respectively. The application of aerogel to strawberry preservation extends their shelf life from 1 to 3 days, outperforming commercially available preservation pads. Therefore, this study offers a novel approach for the development of fruit and vegetable preservation pads. Graphical
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FirePhysChem
·
2026
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IF 5.1
Ying Kang,Kaiyuan Sun,Haiting Liu,Jiani Dong,Guoliang Liu,Lianqiang Li,Haixia Zhao,Erhai An,Xiong Cao
(H 2 dabco) [NH 4 (ClO 4 ) 3 ] (DAP-4) is a multi-ionic energetic material with strong oxidizing and detonation capabilities, but its high decomposition temperature (380 °C) limits its practical use. Cobalt-doped carbon nanotube composites (Co/CNTs) with different Co loadings (0.05, 0.5, 5 mmol) were hydrothermally prepared. Their morphologies and structures were characterized, and the influence of Co/CNTs-(1-3) on the thermolysis process and combustion performance of DAP-4 was comprehensively examined. Among them, Co/CNTs-2 exhibited the strongest catalytic activity in terms of DAP-4′s thermal decomposition and combustion. It decreased the activation energy by 57.1 kJ/mol and the decomposition temperature by 32.2 °C, respectively. Furthermore, the combustion heat of DAP-4/Co/CNTs-2 was 14947 kJ/kg, which was significantly more than that of DAP-4. The addition of Co/CNTs increased the flame area and intensity of DAP-4 while shortening the flame duration and accelerating the energy release rate.
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JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
·
2026
·
IF 7.1
Taozhong Zhang,Wanzhong Yin,Jin Yao,Wenju Sun,Weifan Du,Chao Yin,Xiaoqi Ban
The inherent floatability of chalcopyrite and molybdenite, together with the environmental concerns associated with conventional depressants, poses a persistent challenge to their efficient and sustainable separation. Therefore, this study evaluates the potential of 4-amino-6-hydroxy-2-mercaptopyrimidine (AHMM) as an efficient depressant and systematically investigates its role in improving flotation selectivity and regulating interfacial interactions. Micro-flotation experiments showed that at neutral pH and an AHMM concentration of 12 mg/L, the recovery of molybdenite reached 92.91%, whereas that of chalcopyrite was only 7.76%. This large difference corresponds to a selectivity index of 12.48, enabling highly efficient separation of the two minerals. Surface analyses—including zeta potential measurements and surface wettability tests—indicated that AHMM preferentially adsorbed onto chalcopyrite, significantly reducing its hydrophobicity. FTIR and XPS results demonstrated that the S and N atoms of AHMM coordinated with Cu atoms on the chalcopyrite surface, leading to the formation of stable surface complexes. DFT calculations further supported the robust chemisorption of AHMM on the chalcopyrite surface, producing a four-membered chelate via Cu–S and Cu–N coordination. Overall, this study demonstrates that AHMM has significant potential to serve as an efficient and selective depressant for chalcopyrite in Cu–Mo flotation separation processes.
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ACS Applied Polymer Materials
·
2026
·
IF 5.2
Rui Zhang,Zhengfeng Xie,Yujie Hu,Jie Li,Hong Liao,Junjie Gao,Wei Shi,Chuxiang Zhou
The complexity of pollutants in water, including endocrine-disrupting chemicals, dyes, and antibiotics, poses a challenge to existing water treatment agents. Therefore, we successfully cross-linked tris(4-formylphenyl)amine (TFPA) onto β-cyclodextrin (β-CD) to synthesize a β-cyclodextrin polymer (TFPA-N-β-CD). This unique adsorbent provides essential adsorption properties from each of its components: β-CD offers a cavity structure and hydrophilic groups capable of removing organic micropollutants through host–guest interactions, while TFPA not only constructs a three-dimensional network structure to enhance the specific surface area (63.68 m2/g) but also provides adsorption sites. In single-component systems, the adsorption of bisphenol A (BPA), methylene blue (MB), and tetracycline (TC) follows the pseudo-second-order kinetic model and the Sips adsorption isotherm model. The maximum adsorption capacities are 164.73 (BPA), 272.03 (MB), and 33.89 mg/g (TC). In binary system mixed adsorption, each pollutant still maintains significant adsorption capacity, with adsorption capacity ratios (Rq) greater than 0.80. This reveals the different mechanisms behind the adsorption of TFPA-N-β-CD. During the adsorption of BPA, host–guest interactions dominate, while electrostatic forces are stronger than hydrophilic and inclusion interactions in MB adsorption, and hydrophilic interactions play a dominant role in TC adsorption. Additionally, after 10 consecutive adsorption–desorption cycles, the adsorption capacity of TFPA-N-β-CD for the target pollutants was maintained at over 55% of its initial value, demonstrating its excellent cycling stability and potential for reuse. These characteristics make it highly promising for the treatment of complex real wastewater.
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ACS Catalysis
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2026
·
IF 13.1
Jie Li,Pengpeng Shao,Peng Lei,Di Zhang,Chengpeng Liu,Shilu Chen,Yingnan Chi,Changwen Hu
Proton shuttles play a vital role in diverse chemical transformations; however, most known examples, such as water and small organic molecules, operate in homogeneous systems with colocated proton donor and acceptor sites. In contrast, recyclable proton shuttle catalysts with spatially separated donor and acceptor sites are highly desirable due to their enhanced flexibility in proton transfer but remain largely unexplored. Herein, we identify the polyoxoniobate K7HNb6O19·13H2O (KNb6) as a special type of recyclable proton shuttle catalyst that enables rapid cleavage of lignin β-O-4 ketone into value-added phenol (yield: 93%) and benzonitrile (yield: 73%) within 10 min, using NH2OH·H2O as the N-source. Combined computational and experimental studies reveal that the unique surface of KNb6, featuring a proton-donating hydroxyl group (−OH) surrounded by multiple proton-accepting oxo ligands (O2–), facilitates a proton-shuttling mechanism that drives both Cβ–O and Cα–Cβ bond cleavage of a ketoxime intermediate formed in situ. Moreover, KNb6 maintains a stable catalytic performance over multiple cycles and efficiently promotes the depolymerization of oxidized natural lignin. This work not only provides a robust and recyclable catalyst for biomass valorization but also offers insights into the design of recyclable proton transfer systems.
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JOURNAL OF POLYMER SCIENCE
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2026
·
IF 3.9
Wenjing Dong,Xianteng Feng,Xiaolin Zhao,Yanqi Liu,Xinyi Chen,Ze Kan
Owing to inherent limitations such as low melt strength and slow crystallization rate, poly(4-hydroxybutyrate) (P4HB) exhibits unsatisfactory foaming performance and oil adsorption capacity. Herein, a shear-induced in situ fibrillation process is integrated with supercritical CO 2 foaming to fabricate P4HB/polyaryl polymethylene isocyanate (PAPI)/polyvinylidene fluoride (PVDF) foams. This strategy enhances the crystallization behavior and melt strength of chain-extended P4HB, suppresses foam shrinkage, and improves both foaming ability and oil adsorption performance. The resulting foam achieves a maximum expansion ratio of 45.9 and a cell density of 5.8 × 10 12 cells/cm 3 . Notably, the foam with 2 wt% PVDF exhibits the highest oil adsorption capacity, reaching 28.1 g/g for CCl 4 . This work provides an effective strategy for overcoming the challenges of P4HB foaming and demonstrates significant potential for expanding its applications in oil adsorption and related fields. Graphical The incorporation of PVDF improves the cellular structure and suppresses foam shrinkage, leading to more refined cell sizes with a uniform distribution. Simultaneously, the significant increase in the material's expansion ratio contributes to the enhanced oil adsorption capacity of the foam. As a result, a high-performance, bio-based, and environmentally friendly oil-absorbing material is obtained.
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JOURNAL OF MOLECULAR STRUCTURE
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2026
·
IF 4.9
Chao Wu,Yuqi Sun,Xueling Liu,Ruining Shi,Qiuxuan Li,Chenghao Yin,Rui Zhang,Chao Xu,Guoshuai Zhang,Haitao Han
A polyhedral coordination cage (PCC) was constructed as a confined nanoreactor. • Ultrafine Cu nanoparticles of approximately 1 nm were uniformly stabilized in PCC. • Cu NPs@PCC achieved 99.09% metronidazole removal within 15 min. • PMS activation involved synergistic radical and nonradical oxidation pathways. • The catalyst showed good stability, recyclability, and broad pollutant applicability. Developing PMS-based heterogeneous catalysts with high activity and durability is limited by the aggregation and deactivation of active metal species. Herein, a cobalt-based thiacalix[4]arene polyhedral coordination cage (PCC, compound 1) was constructed as a confined nanoreactor for stabilizing ultrasmall Cu nanoparticles, yielding a Cu NPs@1 catalyst for PMS activation. The abundant exposed nitrogen-donor sites within the PCC enabled uniform confinement of ∼1 nm Cu nanoparticles and effectively suppressed their aggregation. Benefiting from the confined catalytic environment and highly dispersed active sites, Cu NPs@1 exhibited excellent activity toward metronidazole (MTZ) degradation, achieving 99.09% removal within 15 min ( k obs = 0.27 min -1 ). The catalyst maintained high performance under various pollutant concentrations, coexisting ions, and repeated cycles, and also efficiently degraded rhodamine B and tetracycline. Mechanistic studies revealed that PMS activation involved both radical and nonradical pathways, with 1 O 2 , ·OH, ·SO 4 - , and ·O 2 - contributing to pollutant oxidation. LC-MS analysis revealed that MTZ underwent hydroxylation, bond cleavage, and ring-opening reactions, leading to progressive degradation and mineralization. This work provides a coordination cage confinement strategy for constructing highly dispersed metal nanoparticle catalysts toward advanced oxidation processes. A cobalt-based thiacalix[4]arene polyhedral coordination cage (PCC) was employed as a confined nanoreactor to stabilize ultrasmall Cu nanoparticles for efficient PMS activation. The resulting Cu NPs@PCC catalyst enabled rapid metronidazole degradation through synergistic radical and nonradical pathways involving 1 O 2 , ·OH, ·SO 4 ⁻, and ·O 2 ⁻. The coordination-cage confinement effectively suppressed nanoparticle aggregation, enhanced catalytic stability, and provided a versatile strategy for advanced oxidation catalysis. Download: Download high-res image (355KB) Download: Download full-size image
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Energetic Materials Frontiers
·
2026
·
IF 4.7
Yi-ming Wang,Hai-long Huang,Yun-long Zhang,Yue-wen Wang,Shao-li Chen
Energetic molecular perovskite (H 2 dabco)[NH 4 (ClO4) 3 ] (DAP-4) had attracted much attention due to their strong oxidizing ability and high energy characteristics. However, the high thermal decomposition temperature would affect their potential application in the fields of propellants. In this work, Fe-doped carbon (Fe-Carbon) composites were prepared by a simple and facile high-temperature carbonization method with the iron salt-contained biomass flour materials as carbonized porous precursor. And the influence of Fe-Carbon composites on catalytic thermal decomposition and combustion on DAP-4 was studied. The results showed that porous Fe-Carbon composites with the low contents of Fe x O y showed the intrinsic catalyzed decomposition properties towards DAP-4. With the adding of 5wt% Fe-Carbon-3, the thermal decomposition temperature of DAP-4 had reduced by 25 °C from 374 °C (DAP-4) to 349 °C (DAP-4/Fe-Carbon-3). The apparent activation energy of thermal decomposition of DAP-4 had reduced by 16.25 kJ·mol -1 with the appearance of Fe-Carbon-2. DAP-4/Fe-Carbon-3 had a shorter combustion process (∼80 s) than DAP-4 (∼110 s). The maximum combustion temperature and combustion heat had increased. The catalysis thermal decomposition and combustion mechanism of DAP-4 with Fe-Carbon was provided. Fe x O y with high dispersion at the surface of carbon materials enhanced hydrogen transfer from ammonium and protonated H 2 dabco 2+ cations to perchlorate anions, which accelerated decomposition and combustion reaction of DAP-4. This work showed a novel understand of catalysis decomposition and combustion reaction of energetic molecular perovskite by metal-doped carbonization materials.
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JOURNAL OF CHROMATOGRAPHY A
·
2026
·
IF 4
Mingyi Du,Xiran Chen,Yaming Sun,Jiadu Hu,Wenlin Wen,Hanhong Xu,Zhibin Yin,Xinzhou Wu
MBSA-SiO2@Au nanoshells enabled selective enrichment and SALDI-MS of QACs. • The bifunctional platform served as both adsorbent and ionization matrix. • The method achieved 0.5–1.5 ng/mL LODs with 20–40-fold sensitivity enhancement. • Recoveries of 87.0–108.8% were achieved in white radish, carrot, and potato matrices. The widespread use and persistence of quaternary ammonium compounds (QACs) in food environments raise concerns about their detection at trace levels in complex matrices. In this study, we developed a negatively charged 4-mercaptobenzenesulfonic acid functionalized SiO 2 @Au core-shell nanocomposite (MBSA-SiO 2 @Au) that serves as both a selective adsorbent and an efficient surface-assisted laser desorption/ionization (SALDI) matrix. The sulfonate modified gold shell provides a stable negative surface potential to promote electrostatic interactions with cationic QACs, and their plasmonic properties synergistically enhance laser energy absorption and ionization efficiency. Critical enrichment parameters, including adsorbent amount, solution pH, adsorption time, and redispersion volume, were optimized. The optimized method achieved limits of detection of 0.5 ng/mL for paraquat (PQ), dodecyltrimethylammonium chloride (DTAC), and didodecyldimethylammonium chloride (DDAC), and 1.5 ng/mL for dodecyldimethylbenzylammonium chloride (DBAC), with excellent linearity (R 2 ≥ 0.9843), achieving an enrichment factor of approximately 33.3, and a 20- to 40-fold sensitivity enhancement after enrichment. Application to real food samples, including white radish, carrot, and potato, revealed no detectable QAC residues and satisfactory recoveries ranging from 87.0 to 108.8%. The bifunctional MBSA-SiO 2 @Au-based SALDI platform minimizes organic solvent consumption and offers a rapid, green, and sensitive approach for monitoring QACs in food safety applications.
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高影响因子
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