Food Bioscience
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2026
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IF 6.2
Zhongqin Li,Jiazhen Shi,Yinghua Song,Yue Tang,Lian Xia,Yuangen Wu
Butylated hydroxyanisole (BHA) is a synthetic phenolic antioxidant widely used in edible oils and fat-containing foods. Excessive BHA poses significant risks to human health, thus making rapid and sensitive detection of BHA crucial for health protection. Herein, the Ag 2 CO 3 nanozyme was prepared by the simple precipitation method, which exhibits both laccase-mimic and oxidase-mimic activities. It was found that the oxidase-mimic activity of Ag 2 CO 3 facilitated the conversion of TMB to its blue oxidized form (oxTMB), and subsequent addition of BHA resulted in the formation of a characteristic purple adduct. Additionally, BHA effectively suppressed the laccase-mimic activity of the Ag 2 CO 3 nanozymes. Therefore, a novel colorimetric sensor was constructed using the dual-enzyme-mimic activities as a sensing signal for rapidly detecting BHA in edible oil. The colorimetric sensor achieves limits of detection (LOD) for BHA as low as 1.1 μM in the laccase-mimic channel and 0.08 mM in the oxidase-mimic channel, both of which are substantially lower than the maximum permissible BHA level in edible oils stipulated in Chinese National Food Safety Standard GB 2760. The sensor developed in this work shows great promise for application in the field of edible oil detection.
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CHEMICAL ENGINEERING JOURNAL
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2026
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IF 12.5
Hongyang Liu,Tiancheng Gao,Jian Zhang,Xin Cheng,Zheng Xing,Lina Li,Haina Bai
Constructed MOF-in-LDHs to regulate morphology and anchor active sites. • Ternary metal redox cycles coupled with ETP boosted PMS activation. • Ion resistance and cycling stability enable continuous-flow application. Although the development of catalysts with high activity and stability is still a major problem, advanced oxidation processes based on peroxymonosulfate (PMS-AOPs) show promise for the degradation of antibiotics. In this work, FeCu-LDH with an initial fish-scale embroidered spherical morphology was reconstructed during ZIF-67 growth, forming a unique 3D structure with ZIF-67 nanoparticles confined on lamellar substrates. This structure not only provides ideal anchoring sites for ZIF-67 but also alleviates its self-agglomeration and metal ion leaching via spatial confinement. Under optimized conditions, 2 mg of the catalyst achieved 95.12% norfloxacin (NOR) removal within 30 min; positively charged LDHs stabilized negatively charged PMS, while ZIF-67 Co sites triggered the continual production of reactive oxygen species (ROS). DFT calculations showed ZIF-67/FeCu-LDH efficiently activates PMS by enhancing adsorption and interfacial electron transfer. A continuous-flow reactor with this catalyst maintained >90% NOR removal for 8 h, showing good practical potential. Quenching experiments and EPR confirmed SO 4 ·- , ·OH, ·O 2 − and 1 O 2 generation; electrochemical tests verified the participation of type III electron transfer pathway (ETP(III)), with radical-non-radical coupling promoting NOR degradation. Mechanistically, FeCu-LDH lamellar confinement enhances Fe/Cu/Co redox cycles and accelerates electron transfer, supplying sufficient electrons for PMS activation. This study proposes a potential method for designing MOF-in-LDHs composites, providing a reference for the treatment of water contaminated by antibiotics.
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SENSORS AND ACTUATORS B-CHEMICAL
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2026
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IF 8.3
Lu Cai,Hao Jing,Jin-ze Zhang,Hong-dan Wan,Zi-ting Lin,Kai Gao,Yu-xiao Liu,Yu-jie Wang,Yong Zhao
Thrombin time is an important coagulation indicator reflecting the function of the terminal common pathway of the coagulation cascade, and it holds significant clinical value in anticoagulation therapy monitoring and the assessment of hemorrhagic and thrombotic diseases. In this paper, an optical sensor based on whispering-gallery-mode microtube resonator is proposed for real-time and label-free monitoring of plasma thrombin time. The core element of the sensor is a silica microtube fabricated by HF etching of a hollow-core fiber. The wall thickness is optimized via simulation to maximize the evanescent field energy at the liquid core–inner wall interface. By covalently immobilizing thrombin on the inner wall of the microtube, local refractive index changes induced by fibrin deposition during the coagulation reaction can be sensitively captured by the evanescent field and converted into real-time shifts of the resonant wavelength. Experimental results show that the sensor exhibits good repeatability for plasma thrombin time measurement, with a standard deviation of 2.67 ms. The influence of anticoagulant drugs on thrombin time was further investigated. Thrombin time was prolonged as the concentration of heparin sodium increased, and a good linear relationship ( R ²=0.94) was obtained between heparin sodium concentration (in the range of 0∼0.3 U/mL) and thrombin time, indicating that the response of the coagulation process to anticoagulant drugs can be well monitored by the proposed method. The sensor features simple fabrication, low sample and reagent consumption, resistance to external environmental contamination, and ease of storage, providing a promising optical detection platform for point-of-care monitoring of the coagulation process.
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MICROCHEMICAL JOURNAL
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2026
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IF 5.2
Zhuo Shi,Hongyuan Guo,Xiaoyang Fu,Xiayu Song,Xiu Zhao,Suozhu Wu
Poly(ANI-APBA) composite was prepared by one-step electrochemical deposition. • DA was detected via boronic acid-diol recognition. • An ultra-wide response range (1.00 × 10 −11 M to 1.00 × 10 −4 M) was obtained. • An ultra-low detection limit (2.41 × 10 −12 M) was obtained. • This sensor was simple, stable, accurate, and highly selective. Dopamine is a crucial neurotransmitter, and the misuse of exogenous dopamine may lead to its residues in animal-derived food products, thereby posing potential risks to human health. In this work, an electrochemical sensor was developed for dopamine detection by integrating the highly conductive framework of polyaniline with poly(3-aminophenylboronic acid) having ortho-diol recognition capability. Initially, a poly(aniline- co -3-aminophenylboronic acid) modified electrode was fabricated through the copolymerization of aniline and 3-aminophenylboronic acid. Subsequently, sensitive detection of dopamine was achieved by monitoring the signal of the potassium ferricyanide probe. The results demonstrated that this electrochemical sensor had a wide linear response range (1.00 × 10 −11 M to 1.00 × 10 −4 M) toward dopamine with a detection limit as low as 2.41 × 10 −12 M. The proposed sensor exhibited superb reproducibility, excellent stability, and high selectivity. This study provided a more efficient analytical approach for sensitive determination of dopamine content in pork products. Download: Download high-res image (213KB) Download: Download full-size image
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ACTA PHYSICO-CHIMICA SINICA
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2026
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IF 13.5
Jialei Dong,Jixing Bai,Liu Yang,Haiyan Zhang,Junbo Qi,Saina Zheng,Yue Wang,Huiyan Zhang,Qi Cao
Layer engineering is widely applied in two-dimensional materials to achieve tunable and optimal properties. Graphene oxide (GO) nanosheets, as carbon-based carriers, offer various advantages for electromagnetic wave (EMW) absorption, including high specific surface area, tunable conductivity, and abundant polar functional groups. Nevertheless, the regulation of layer numbers of GO-based composite absorbents, and comprehensive understanding of the underlying mechanisms influencing the EMW absorption properties remain insufficient. This study converts ZIF-67/GO into Co/rGO composites, and employs the layer engineering via ultrasonic-assisted calcination, to investigate the influences of GO layer numbers on the material’s EMW absorption performance. In the optimized Co/rGO, few-layer GO forms a better conductive network, while the well-dispersed Co nanoparticles introduce magnetic loss and assist in achieving impedance matching. As a result, this sample delivers considerable absorption performance, with a minimum reflection loss of −49.86 dB and an effective absorption bandwidth of 5.35 GHz. Following additional heteroatom doping, the Co/rGO composite could further achieve an absorption efficiency of above 99.9999% (−68.02 dB), which efficiently reduce EMW signals from highly reflective targets to background noise level. This study confirms the effectiveness of layer engineering in regulating electromagnetic properties and thereby enhance the absorption performance of carbon-based composites to achieve strong and broadband EMW absorption. Through layer engineering and doping treatment, Co/rGO composites achieve strong and broadband EMW absorption performance. This study comprehensively reveal the correlations between microstructure and electromagnetic properties of 2D Co/rGO composites. Download: Download high-res image (201KB) Download: Download full-size image
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OPTICS COMMUNICATIONS
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2026
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IF 2.7
Haiyu Tian,Haidong Qi,Yongjun Zhang,Yaxin Wang,Xiaoyu Zhao,Renxian Gao
Surface-enhanced Raman scattering (SERS) is a powerful surface analysis technique that significantly amplifies the Raman scattering signals of molecules adsorbed onto metallic nanostructures, enabling highly sensitive detection of the analytes. The development of low-cost, high-performance SERS substrates through facile and straightforward fabrication methods represents a challenging and highly rewarding endeavor. Here, we develop a suspended sandwich Ag/SiO 2 /Ag nanopore array structure based on template-assisted method with significant plasma coupling effects, which shows an ultra-low detection limit (LOD of 2.91 × 10 −11 mol/L) for 4-MBA molecules, excellent sensitivity (EF = 5.76 × 10 8 ) and high uniformity and stability. COMSOL simulation confirms the electromagnetic coupling in the sandwich structure in addition to the hotspots along the nanopore brims. The proposed SERS substrate enables quantitative detection of glyphosate with the concentration down to 4.66 × 10 −9 mol/L and fulfills the requirements for monitoring pesticide residues.
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INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2026
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IF 8.7
Xiaoxuan Fan,Shuxian Zhang,Lingling Yang,Keshuai Liu,Rui Mai,Wangyan Zhao,Yuanyuan Zhang,Bin Guo,Xueqin Ma,Guoning Chen
Developed a signal-amplified fluorescence sensing method for rapid chymotrypsin activity monitoring. • Compared with other methods, this approach exhibits good sensitivity and selectivity. • Enhanced fluorescence sensing was combined with target fishing to construct a chymotrypsin inhibitor screening system. • This integrated platform quantifies chymotrypsin activity and identifies bioactive inhibitors from TCM extracts. Regulation and screening of biomacromolecule (e.g., enzyme) activity is one of the core tasks in disease treatment and drug discovery. Natural products are an important source of enzyme inhibitors, but their complex composition makes it difficult to develop effective candidate drug molecules. As a typical biomacromolecular target, chymotrypsin (CHT) exhibits aberrant activity closely associated with diseases such as wound healing, chronic pancreatitis, and emphysema. Therefore, efficient screening of enzyme inhibitors from natural products holds significant importance for clinical diagnosis, treatment, and drug development. This study establishes an integrated screening platform for enzyme inhibitors by combining a Cu 2+ -casein-mediated fluorescence-enhanced biosensing system with targeted ligand capture technology, enabling highly sensitive screening and precise identification of chymotrypsin inhibitors from natural products. In this platform, Cu 2+ -casein functions as a biomacromolecular substrate while also acting as a peroxidase-mimetic enzyme, significantly enhancing the fluorescence signal amplification effect of o -phenylenediamine oxidation. When chymotrypsin hydrolyzes casein, the structure of casein is disrupted, reducing its copper ion-binding capacity. Which leads to decreased catalytic activity and subsequent changes in fluorescence intensity, allowing quantitative detection of chymotrypsin activity with a detection limit as low as 13.6 ng mL −1 . In the targeted fishing module, immobilized chymotrypsin (CHT@NH 2 -SiO 2 ) is employed as an affinity medium, and combined with HPLC and LC-MS analysis, enables precise identification of active components in complex samples. This integrated strategy mitigates certain limitations of individual techniques, providing a feasible approach for efficient, high-throughput screening of inhibitors targeting biomacromolecules from complex systems. Download: Download high-res image (207KB) Download: Download full-size image
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JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
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2026
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IF 16.8
Junpeng Fan,Zhijun Wu,Quan Nie,Lintao Nie,Fangchang Tan,Chunyan Wu,Ming Deng,Hailing Sun,Guofu Zhou,Lei Qian,Ting Zhang,Chaoyu Xiang
In-situ photo-patterning of ZnO was successfully achieved at room temperature. • QLEDs utilizing photolithographic ZnO as the ETL demonstrated superior performance. • The positive-aging effect was significantly alleviated by using photolithographic ZnO. • ZnO patterns were utilized to construct carrier transport channels in pixelated QLEDs. Benefiting from the adjustable emission spectrum, high color purity, wide gamut, and solution-processability, quantum dot light-emitting diode (QLED) is considered one of the most promising next-generation display technologies. As a prevalent electron transport material, ZnO plays a crucial role in enhancing the efficiency and long-term stability of QLED devices. To promote the development of high-resolution QLED displays, this study proposes a dual-functional surface engineering strategy for achieving in-situ photo-patternable ZnO with enhanced electrical properties. Physicochemical characterization revealed that surface defects of ZnO were significantly reduced via direct photolithography, thereby decreasing non-radiative exciton recombination at the QD/ZnO interface. Particularly, the red QLED devices based on photolithographic ZnO exhibited remarkable performance, achieving a peak external quantum efficiency (EQE) of 23.5%, a brightness of over 140,000 cd m −2 at 5 V, and an alleviated positive-aging effect (i.e., anomalous brightness increase). Concurrently, the operational lifetime T 95 (the time for the device luminance to drop to 95%) was also improved from 1,036 h to 2,084 h. Furthermore, by modulating the morphology of ZnO films, we successfully fabricated pixelated QLED devices, laying the technical foundation for commercializing high-resolution QLED displays. Download: Download high-res image (394KB) Download: Download full-size image
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DESALINATION
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2026
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IF 9.9
Chuangen Zheng,Liting Luo,Abdul Haleem,Hao Li
A magnetic hollow MOF adsorbent encapsulated with polydopamine was fabricated. • The developed system for efficient and selective gold extraction from E -waste. • The maximum adsorption capacity for gold was 2293.97 mg g −1 at 318 K. • The adsorbent achieves a gold recovery rate of 95.68% from real samples. E -waste recycling has emerged as a sustainable route for gold recovery to alleviate resource shortages. Herein, a polydopamine-encapsulated magnetic hollow MOF (HM-UiO-DMSA) was fabricated via an in-situ growth strategy for selective gold extraction. The adsorbent achieves rapid equilibrium within 600 min and a high adsorption capacity of 1782.84 mg g −1 at pH 4, with adsorption behavior well fitted to the Freundlich isotherm. Benefiting from the abundant amino, thiol and carboxyl groups, HM-UiO-DMSA exhibits outstanding Au(III) selectivity and enrichment capacity. In simulated multi-metal E -waste leachate, the prominent Au(III) distribution coefficient (K d ) and concentration factor (CF) reach 235,258 mL g −1 and 4905.5 mL g −1 , respectively. Notably, benefiting from its intrinsic photothermal effect, HM-UiO-DMSA delivers an exceptional adsorption capacity of 2332.30 mg g −1 under UV irradiation, a value 27.73% greater than its nonmagnetic analogue (H-UiO-DMSA). A high gold recovery efficiency of 95.68% is realized for practical waste circuit board samples with ultra-low Au(III) concentrations, and the final recovered gold exhibits a high purity of 98.20% (23.6 K gold). The excellent gold separation performance originates from the synergistic coordination-reduction effect of heteroatoms and reductive polydopamine/DMSA groups. Furthermore, HM-UiO-DMSA possesses favorable recyclability over six cycles, enabling reliable gold recovery in complex acidic E -waste systems. Download: Download high-res image (115KB) Download: Download full-size image
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BIORESOURCE TECHNOLOGY
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2026
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IF 8.2
Haoyu Chai,Xin Li,Yu-Cai He,Cuiluan Ma
Recombinant E. coli ADH6–GDH carrying ADH6 and GDH was constructed for bioreduction. • ADH6–GDH whole-cell fully converted 40 mM syringaldehyde to syringyl alcohol. • Substrate spectrum was explored using lignin-derived aldehydes via bioreduction. • Lipase Novozym 435 enabled the conversion of syringyl alcohol to syringyl acetate. • Tandem biocatalysis with reductase and lipase was used to synthesize aromatic esters. Efficient valorization of lignin-derived aromatics remains a key challenge in sustainable chemistry. Biobased aromatic alcohols and esters are important value-added compounds widely used in fragrances, pharmaceutical intermediates, fine chemicals, and functional materials. In this study, a whole-cell biocatalytic system co-expressing alcohol dehydrogenase (ADH6) from Saccharomyces cerevisiae and glucose dehydrogenase (GDH) was developed for the efficient conversion of syringaldehyde to syringyl alcohol. The GDH-based cofactor regeneration module enabled in situ reduced nicotinamide adenine dinucleotide phosphate (NADPH) supply, thereby improving catalytic efficiency while reducing the dependence on external cofactors. Under optimized conditions, the system achieved a high analytical yield of 98.3% at 40 mM syringaldehyde in an aqueous system, representing, to the best of our knowledge, the highest substrate concentration reported so far for this biocatalytic conversion. The substrate spectrum was further evaluated using representative lignin-derived aromatic aldehydes, including cinnamaldehyde, p -anisaldehyde, vanillin, and 3,4-dimethoxybenzaldehyde. These substrates were converted into cinnamyl alcohol, 4-methoxybenzyl alcohol, vanillyl alcohol, and 3,4-dimethoxybenzyl alcohol, respectively. Cinnamaldehyde, p -anisaldehyde, and 3,4-dimethoxybenzaldehyde afforded the corresponding alcohols with analytical yields of 99%, whereas vanillin gave vanillyl alcohol with an analytical yield of 86% after 4 h. Molecular docking indicated that these substrates could bind within the ADH6 active pocket through similar orientations, supported by hydrogen-bonding and hydrophobic interactions, providing structural explanation for the observed substrate adaptability. In addition, coupling with immobilized lipase Novozym 435 enabled the conversion of syringyl alcohol into syringyl acetate via transesterification. This work established an efficient tandem biocatalysis with reductase and lipase for upgrading of lignin-derived aromatic compounds. Download: Download high-res image (100KB) Download: Download full-size image
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JOURNAL OF CATALYSIS
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2026
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IF 6
Wenfeng Zhang,Xiao Jiang,Xian Tang,Shiyu Wu,Jingcong Wei,Kairui Wei,Hao Xu,Kui Wang,Kaili Zhang,Jianchun Jiang
Developing precious-metal-free catalysts for the selective hydrodeoxygenation of biomass-derived 5-hydroxymethylfurfural (HMF) to 2,5-dimethylfuran (DMF) is critical yet challenging. Herein, a series of non-noble metal Co@CN-T catalysts were designed and fabricated, which can efficiently catalyze the selective hydrogenolysis of HMF to DMF under mild reaction conditions of 140 °C, with the selectivity of the target product reaching as high as 99%. The Co-N x coordination active sites serve as Lewis acid sites, which can preferentially activate the C=O bond in HMF. Such selective activation promotes the effective hydrogenolysis of the intermediate 2,5-bis(hydroxymethyl)furan (BHMF) to 5-methylfurfuryl alcohol (MFA), reduces intermediate accumulation, and thus guarantees high selectivity toward DMF. In addition, the Co@CN-T catalysts also exhibited excellent stability, and their catalytic activity remained stable without obvious attenuation after five consecutive cycles of reaction. This study offers theoretical insights into the use of non-noble metal catalysts for the hydrodeoxygenation of renewable biomass to produce chemical feedstocks.
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JOURNAL OF CATALYSIS
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2026
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IF 6
Huixiang Li,Xinyu Wu,Changhui Liang,Wei Zhang,Xiaoqiang Zhang,Z. Conrad Zhang
Aldol condensation is a fundamental carbon–carbon coupling reaction for upgrading oxygenates; however, the intrinsic catalyst function governing carbonyl activation and enolization—and thus the reactivity—remains unclear, particularly in the absence of a reliable descriptor. Here, we establish oxygen affinity as a mechanistically relevant descriptor linking catalyst–oxygenate interactions to intrinsic activity. A volcano-type relationship is revealed over a series of metal oxides in benzaldehyde-acetone aldol condensation, demonstrating that catalytic performance is maximized at an intermediate interaction strength. Establishing this relationship requires quantitative determination of active-site density to evaluate intrinsic activity, and independent assessment of interaction strength. We employ complementary and cross-validated experimental methods integrating isothermal desorption, infrared spectroscopy, and pulse chemisorption. Furthermore, substituent effects show that the optimal affinity regime shifts systematically with substrate electronic properties, indicating that descriptor–reactivity relationships depend on substrate electronic properties. This work provides a quantitative basis for descriptor-based catalyst design in oxygenate transformations.
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危险品化学品经营许可证（带存储）