CHEMICAL ENGINEERING JOURNAL
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2026
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IF 12.5
Xinyu Li,Yuanye Pan,Jiayao Du,Hanchi Shi,Shuangqing Fan,Jinghan Li,Haijiao Xie,Minghui Cao,Siqi Li,Tong Liu
Structural evolution of Cu 3 (HHTP) 2 under polymerization is revealed. • Cu 3 (HHTP) 2 -derived species and PANI synergistically enhance NH 3 sensing. • The sensor achieves a wide NH 3 detection range of 0.5–500 ppm. • The sensor exhibits reliable sensing under high humidity and bending. • The sensor realizes real-time monitoring of seafood spoilage. Ammonia (NH 3 ) is a key volatile indicator of seafood spoilage, and developing sensitive NH 3 sensors that operate stably in complex environments is highly desirable. Conductive polymers such as polyaniline (PANI) have attracted attention for room-temperature sensing, but their limited adsorption capability and environmental stability still restrict practical applications. In this work, a flexible NH 3 sensor was developed by integrating PANI with Cu 3 (HHTP) 2 through in situ oxidative polymerization. During the acidic polymerization process, Cu 3 (HHTP) 2 undergoes structural evolution, generating Cu-containing and HHTP-derived components that remain associated with the PANI matrix. The optimized PACU20 sensor exhibits a wide detection range of 0.5–500 ppm NH 3 , a high response value of 14.5 toward 100 ppm NH 3 , and rapid response/recovery times of 37/56 s. Furthermore, the sensor maintains stable sensing performance under high humidity conditions and repeated bending cycles, indicating its robustness under practical storage and flexible operating environments. The enhanced sensing behavior might be attributed to the synergistic interaction between PANI and Cu 3 (HHTP) 2 -derived components, which regulate the local chemical environment of PANI and enhance NH 3 -induced charge variation. Practically, the sensor was applied to monitor ammonia evolution during fish and shrimp spoilage, demonstrating its potential for seafood freshness evaluation.
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APPLIED SURFACE SCIENCE
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2026
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IF 6.6
Thanh Hai Pham,Do Ngoc Son,Viorel Chihaia
Inhibition efficiency follows MBTH-6-NH 2 ≪ MBTH < MBTH-6-Cl. • A new approach is proposed to evaluate anodic and cathodic inhibition efficiencies. • Adsorption energy alone cannot explain inhibition performance. • Organic inhibitor layers regulate interfacial reaction kinetics and surface electronic structure. By combining experimental techniques with density functional theory (DFT) calculations, we investigate the interfacial corrosion inhibition behavior of 2-mercaptobenzothiazole (MBTH) and its –NH 2 and –Cl substituted derivatives on Cu surfaces. The inhibition efficiencies follow the order MBTH-6-NH 2 < MBTH < MBTH-6-Cl. At 5 × 10 −4 M, MBTH and MBTH-6-Cl exhibit high efficiencies of 95.5% and 97.8%, respectively, whereas MBTH-6-NH 2 shows a lower efficiency of 76.3%. The formation and characteristics of inhibitor layers on copper are confirmed by SEM, AFM, ATR-FTIR, and contact angle measurements. DFT calculations reveal that the adsorption energies of the inhibitors on Cu (111) at various coverages do not correlate with the experimental efficiencies, indicating that adsorption strength alone cannot account for the inhibition mechanism. Instead, the efficiency trend is governed by the influence of inhibitor layers on interfacial electrochemical reactions. The MBTH-6-NH 2 -covered Cu (111) surface exhibits enhanced oxygen reduction activity due to stronger O 2 and H 2 O adsorption, facilitated by hydrogen bonding with the –NH 2 group. Moreover, the reduced work function and lower Cu escape energy promote interfacial charge transfer and copper dissolution. These results demonstrate that regulation of interfacial reaction kinetics and surface electronic structure by organic inhibitor layers is critical for copper corrosion inhibition. Download: Download high-res image (99KB) Download: Download full-size image
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NEW PHYTOLOGIST
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2026
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IF 8.7
Lele Chu,Xiangming Shang,Bachar Dahro,Xi Zeng,Wenqiang Hu,Chunlong Li,Ji-Hong Liu
Summary Ethylene exerts a divergent role in modulating plant organ abscission. Spermidine (Spd) shares a common precursor for de novo biosynthesis with ethylene, but the antagonistic role between them in the regulation of plant organ abscission remains largely elusive. Here, RNA-sequencing of abscission zones from ethylene-treated sweet orange ( Citrus sinensis L.) fruit led to the identification of two ethylene-responsive factors (ERFs), CsERF113 and CsERF7. CsERF113 functioned in promoting fruit abscission and suppressed Spd accumulation, whereas CsERF7 exhibited an opposite trend. CsERF113 and CsERF7 were verified to act as a transcriptional repressor or an activator of CsSAMDC1 / 2 / 3 encoding S -adenosylmethionine decarboxylase (SAMDC), an enzyme responsible for Spd biosynthesis, by binding directly to their promoters in an ethylene-dependent manner. Moreover, CsSAMDC1 / 2 / 3 functioned to inhibit fruit abscission by promoting Spd synthesis. Interestingly, CsERF7 and CsERF113 transcriptionally repressed each other to modulate the ethylene-mediated downregulation of CsSAMDC1 / 2 / 3 , forming an antagonistic regulatory circuit that could be negatively orchestrated by exogenous Spd. Taken together, our results uncover that CsERF113 and CsERF7 integrate the ethylene signal to antagonistically regulate CsSAMDC1 / 2 / 3 -mediated synthesis of Spd and fruit abscission. This study provides important insights into understanding the molecular mechanisms by which ethylene and Spd antagonize to modulate fruit abscission.
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PubMed
高影响因子
FOOD CHEMISTRY
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2026
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IF 10.4
Jialin Hu,Xinxin Xu,Xiaoling Wu,Hua Kuang,Chuanlai Xu,Lingling Guo
Melatonin (MT) is a popular ingredient in food and supplements due to its health benefits. However, unregulated use and labeling inaccuracies in commercial products pose safety risks. Establishing reliable monitoring methods is therefore essential for consumer protection. In this study, haptens were screened through computer simulations based on structural, charge, and electrostatic potential properties. Using the selected optimal hapten, a monoclonal antibody capable of simultaneously recognizing MT and 2-hydroxymelatonin (2-MT) was successfully developed. The half-maximal inhibitory concentrations for MT and 2-MT were 47.89 ng/mL and 185.09 ng/mL, respectively. Furthermore, a colloidal gold immunochromatographic assay was established to detect MT and 2-MT in milk, wine, and tablets. The visual limit of detection was 20–100 ng/mL for MT and 50–200 ng/mL (or μg/kg) for 2-MT, respectively. The method demonstrated reliable results when validated by LC-MS/MS. Meanwhile, the developed strips exhibited good stability.
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PubMed
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
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2026
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IF 6.7
Chao Chen,Meng-Han Li,Ya-Yun Ma,Guo-Zhi Han
Photo-deposition method has the advantages of simplicity, environmental friendliness, and high efficiency, and has been widely used in the field of materials preparation. In this paper, we firstly prepared hollow black TiO 2 microspheres by template method, then using the mesoporous hollow microspheres as a carrier, NiCl 2 ·6 H 2 O as raw material, a novel kind of hollow Ni(OH) 2 @TiO 2 composite microspheres was prepared by photochemical deposition. Characterization of X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM), fluorescence spectrophotometry (PL), X-ray photoelectron spectroscopy (XPS), and Fourier transform infrared spectroscopy (FT-IR) indicated that the two units of TiO 2 and Ni(OH) 2 in the composite hollow microspheres form tightly chemical connections. More importantly, this chemical connection endowed the two functional units with mutually enhanced catalytic performance for reduction of aromatic nitro compounds and photocatalytic degradation of emerging organic pollutants. For example, it can catalyze the reduction of 4-nitrophenol (4-NP) to 4-aminophenol (4-AP) by NaBH 4 with a k value of 0.8457 min −1 , as well as degrade tetracycline hydrochloride (TCH) with a degradation rate of 92.29% within 60 min with a k value of 0.0606 min −1 , which is superior to most previous reports. Finally, based on a series of control experiments, a plausible mutually enhanced catalytic mechanism was proposed.
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Journal of Water Process Engineering
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2026
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IF 6.6
Zengjin Fu,Yan Hao,Tingrui Lin,Huiling Ma,Huazheng Sai,Hui Yang
A novel adsorbent (PHPM) was synthesized through the functionalization of N -(2-Hydroxyethyl) acrylamide (HEAA) with phytic acid (PA) and applied for the adsorption of La(III) and Ce(III) ions. The material was characterized by means of FTIR, TGA, SEM, and XPS. The present study systematically investigated the effects of contact time, adsorbent dosage, initial La(III) or Ce(III) concentration, and pH value on the adsorption capacity. The maximum theoretical adsorption capacities of PHPM for La(III) and Ce(III) were determined to be 198.0 and 186.2 mg·g −1 , respectively. The adsorption process followed the pseudo-second-order kinetic model and the Langmuir isotherm model, as further confirmed by nonlinear fitting with low RMSE and χ 2 values. Thermodynamic analysis revealed negative Δ G values, positive Δ H and Δ S values, indicating a spontaneous, endothermic, and entropy-driven process. Furthermore, PHPM demonstrated high adsorption efficiency toward La(III) and Ce(III), even in the presence of competing ions. A preliminary cost analysis indicated that the preparation of PHPM was economically feasible with low cost. The adsorbent maintained approximately 50% of its initial adsorption capacity after ten consecutive adsorption-desorption cycles. The findings demonstrate that PHPM was a promising adsorbent for the recovery of La(III) and Ce(III) from aqueous environments.
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高影响因子
Frontiers in Public Health
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2026
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IF 4.1
Qizhi Diao,Sha Tang,Xin Liu,Jiajia Li,Xiangmin Zhou,Yuanyu Chen,Qiongyuan Zhang,Fangyu Yang
Background This study aimed to establish a rapid detection method for SARS-CoV-2 by integrating loop-mediated isothermal amplification (LAMP) with lateral flow dipstick (LFD) technology. Method Specific primers targeting the nucleocapsid (N) gene and open reading frame 1ab (ORF1ab) gene of SARS-CoV-2 were designed and labeled with 6-FAM and biotin, respectively. After systematically optimizing key reaction parameters, including primer selection, primer concentration, and LAMP reaction time, the sensitivity, specificity, and clinical applicability of the method were evaluated. Results The proposed LAMP-LFD assay enables rapid detection within 30 min with high specificity, accurately identifying the N and ORF1ab genes of SARS-CoV-2 without cross-reactivity with influenza A hemagglutinin gene, influenza B neuraminidase gene, and respiratory syncytial virus M gene. The limit of detection reached 1.892 × 10 1 copies/μL, showing comparable sensitivity to agarose gel electrophoresis and real-time quantitative reverse transcription PCR (RT-qPCR). The results were consistent across different batches of primers and probes, demonstrating good reproducibility. When compared with RT-qPCR using 114 inactivated throat swab samples, the diagnostic agreement rate reached 95.61%. Discussion This study provides technical support for the surveillance and control of SARS-CoV-2 infection.
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PubMed
高影响因子
DALTON TRANSACTIONS
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2026
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IF 3.3
Xing-Yu Bi,Yuting Gao,Chenyuan Ma,Zhi Fang,Mei-Hong Duan
Designing birefringent crystals with wide band gap presents significant challenges, especially within chalcogenide systems. Herein, motivated by the high structural anisotropy of thiourea, along with the ultraviolet compatibility and birefringence activity of halogenated tin(II)-based anionic groups, SnCl2[SC(NH2)2], a novel molecular crystal, was discovered. SnCl2[SC(NH2)2] was characterized by a bench-shaped molecule structure which is formed by the sharing of sulfur anion between a distorted SnCl2S trigonal pyramid and a planar π-conjugated thiourea unit. Through the synergistic interactions among multiple functional groups and the auxiliary regulation of hydrogen bonds, SnCl2[SC(NH2)2] succeeded in breaking the “3 eV wall” with a band gap of 3.362 eV and achieved a large birefringence of 0.20@546 nm, demonstrating a facile design strategy for the development of chalcogenides with dual optical enhancement.
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PubMed
高影响因子
JOURNAL OF HAZARDOUS MATERIALS
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2026
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IF 10.6
Hong-Jia Huang,Dan Huang,Jiang-Bing Qiu,Si-Ying Li,Qing Han,Cai-Qin Cheng,Hao-Yun Zhang,Zong-Di Wang,Yi-Tong Huang,Li-Gong Zou,Ce-Hui Mo,Hong-Ye Li,Wei-Dong Yang,Nai-Xian Feng,Da-Wei Li
Di(2-ethylhexyl) phthalate (DEHP), a widely used plasticizer, is frequently detected in marine environments, raising significant ecological concerns. Biodegradation of DEHP through marine microalgae represents an eco-friendly strategy for effective pollution abatement in marine environments. This study examined the physiological and molecular responses of the dinoflagellate Alexandrium pacificum under DEHP stress and evaluated its ability to biodegrade DEHP. Following DEHP exposure, A. pacificum exhibited a high capacity for DEHP biodegradation, achieving complete removal (below the detection limit) at environmentally relevant concentrations (≤ 200 μg/L) within 72 h, without detectable adverse effects on growth or photosynthesis. The degradation intermediates of DEHP involved β-oxidation, hydrolysis, de-esterification, and aromatic ring cleavage. Notably, DEHP exposure markedly suppressed paralytic shellfish toxin (PST) biosynthesis in A. pacificum , with concentrations of C1, C2, and GTX5 decreasing by 98.7%, 99.6%, and 98.2%, respectively. Transcriptomic analysis indicated that genes involved in DEHP degradation, such as fadB , hppD , xylG , and lysA , were upregulated, whereas PST biosynthesis genes ( SxtD , SxtL , SxtU ) were downregulated, suggesting that A. pacificum actively metabolizes DEHP while concurrently suppressing toxin production. Overall, this study provides comprehensive molecular insights for DEHP biodegradation by marine microalgae and highlights their capacity for effective PAE removal, contributing to ecological health and global seafood safety.
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RADIATION PHYSICS AND CHEMISTRY
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2026
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IF 3.5
Mei Yang,Xin Chen,Xuezhu Sha,Yuhan Fan,Xizhen Zhang,Jinsu Zhang,Yongze Cao,Yichao Wang,Xiangping Li,Sai Xu,Hongquan Yu,Baojiu Chen
This work aims to explore the quantum cutting mechanisms and efficiency of Pr 3+ /Yb 3+ co-doped NaLu(WO 4 ) 2 phosphors synthesized via a high-temperature solid state reaction. To optimize Pr 3+ doping concentration, the spectral properties of Pr 3+ single-doped NaLu(WO 4 ) 2 phosphors were examined. The optimum Pr 3+ concentration was found to be 5 mol%, at which the emission intensity from the 3 P 0 level reaches a maximum. Moreover, spectroscopic and dynamic analyses further indicated that the concentration quenching of 3 P 0 and 1 G 4 levels occurs via electric dipole-dipole interaction between Pr 3+ ions. The luminescence mechanisms in NaLu(WO 4 ) 2 : 5 mol% Pr 3+ , x mol% Yb 3+ phosphors were elucidated through the dependence of the steady spectroscopic properties on the Yb 3+ concentration. It was found that the infrared emission of Yb 3+ originates via two distinct pathways: one involves two-step energy transfers from Pr 3+ in 3 P 0 and 1 G 4 to Yb 3+ , namely 3 P 0 + 2 F 7/2 → 1 G 4 + 2 F 5/2 and 1 G 4 + 2 F 7/2 → 3 H 4 + 2 F 5/2 , and the other arises from direct sensitization of Yb 3+ by Pr 3+ in 1 D 2 via one-step energy transfer 1 D 2 + 2 F 7/2 → 3 F 4 + 2 F 5/2 . In addition, the Pr 3+ itself could produce an infrared emission from 1 G 4 to 3 H 4 . Based on the confirmed luminescence mechanisms, the luminescence efficiencies of the Pr 3+ /Yb 3+ co-doped NaLu(WO 4 ) 2 phosphors were calculated by taking the corresponding energy transfer efficiencies, radiative transition efficiencies, and non-radiative transition efficiencies, and the factors influencing the total luminescence efficiency were analyzed.
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高影响因子
Genes & Diseases
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2026
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IF 14.6
Longfei Dai,Qiuxing Chen,Chao Yu,Haosheng Tan,Zhen Zhang
Ulcerative colitis (UC) is a chronic inflammatory disorder of the colorectum and a major risk factor for colitis-associated colorectal cancer (CAC). However, the role of deubiquitinases (DUBs) in the progression from UC to CAC remains incompletely understood. We identified ZUP1 as a markedly down-regulated deubiquitinase in UC and CAC by RNA sequencing, public dataset analyses, screening with multiple machine-learning algorithms, and validation in clinical specimens. Functionally, ZUP1 deficiency aggravated colitis-associated inflammation and barrier damage, and promoted the proliferation, migration, and invasion of colorectal cancer cells. Mechanistically, ZUP1 directly interacted with ERK1/2 and removed K63-linked ubiquitin chains from ERK1/2, thereby disrupting MEK1/2–ERK1/2 interaction and restraining ERK1/2 phosphorylation. In addition, ERK activation up-regulated c-JUN, which in turn bound to the ZUP1 promoter and repressed its transcription, forming a positive feedback loop. In conclusion, these findings identify ZUP1 as a previously unrecognized suppressor of UC and CAC progression and suggest that the ZUP1–ERK1/2–c-JUN axis may serve as a therapeutic target in UC and CAC.
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高影响因子
APPLIED GEOCHEMISTRY
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2026
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IF 3.5
Rong Peng,Rui Yang,Yuhang Liang,Haichuan Sun,Hui Liu
In anaerobic underground environments, the iron redox cycle is fundamentally driven by microbial activities, wherein the metabolic capacity of individual strains plays a pivotal role. This study investigated the regulatory mechanisms of three carbon sources — acetate, glucose, and lactate — on the iron redox cycle mediated by Comamonas sp. HJ-2 under neutral pH anaerobic conditions in Fe(III)–Fe(II) coexisting and Fe(III)-free systems. The results demonstrated that glucose enhanced Fe(II) bio-oxidation and Fe(III) bio-reduction by promoting energy metabolism. Glucose promoted sustained FMN accumulation, which is consistent with a potential contribution of the glycolysis-pentose phosphate pathway-riboflavin synthesis axis, which accumulated to a final concentration of approximately 0.40 μM. The accumulated FMN may function as an electron shuttle and thereby contribute to Fe(III) reduction. Mineralogical analyses further showed system-dependent effects of glucose. In ferrihydrite-containing systems, glucose inhibited the transformation of ferrihydrite toward more crystalline iron phases, whereas in ferrihydrite-free systems it shifted the product distribution toward a higher proportion of ferrihydrite and a lower proportion of lepidocrocite. Glucose also increased the content of surface-bound Fe(II) on minerals. In conclusion, glucose emerged as the most effective carbon source for optimizing the HJ-2-driven iron redox coupling process, likely due to its association with enhanced energy metabolism, FMN accumulation, and altered mineral phase transformation. This study elucidates the carbon source-dependent mechanisms governing microbial iron cycling in anaerobic environments and highlights the critical role of carbon source selection in enhancing iron biotransformation efficiency.
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高影响因子
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