FOOD CHEMISTRY
·
2026
·
IF 9.8
Guang Nie,Wenxuan Zhang,Hao Ding,Yanfei Qiao,Wensheng Wang,Siqi Dong,Siqi Rao,Chongjie Wang,Yingchun Li,Zhichao He
To address the challenge of fruit spoilage, this study developed an eco-friendly composite film (CGTZ-P) with dual functionality for gas regulation and ethylene adsorption. The film incorporates biodegradable PBAT microspheres to form porous gas-permeable channels and mesoporous nano-zeolites modified with tannic acid as ethylene scavengers. The optimized CGTZ-P1 formulation demonstrated remarkable mechanical enhancement, with tensile strength and elongation at break increasing by 455.84% and 49.45%, respectively, compared to the control film. The composite film exhibited improved CO₂/O₂ selectivity, strong antioxidant activity (DPPH radical scavenging: 72.10%; ABTS radical scavenging: 81.22%, and effective antibacterial effects against both Staphylococcus aureus and Escherichia coli . In the strawberry storage trial, the CGTZ-P1 film extended the shelf life by over 7 days at room temperature by maintaining fruit freshness, reducing weight loss, and delaying pH changes. This work provides a sustainable approach for developing multifunctional biodegradable packaging materials for fruit preservation.
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JOURNAL OF ALLOYS AND COMPOUNDS
·
2021
·
IF 5.316
Junnan Wang,Qijie Wang,Wei Wang,Pinbo Li,Yazhen Zhao,Junjian Zhai,Wu Zhao,Han Zhang,Jiangni Yun,Zhiyong Zhang,Jiangxiao Tian,Zhouhu Deng,Junfeng Yan
In this study, a unique dual-spatial three-dimensional (3D) porous structure comprising Ni/C hollow microspheres was prepared from a Ni-based metal organic framework (Ni-MOF) embedded in graphene foam (GF) by the solvothermal method followed by calcination . The graphene foam-based composite, Ni/C@GF (NCGF), exhibited a stable spatial conductive network structure and diverse porous architecture, promoting the microwave absorption (MA) properties of composites. The NCGF with a Ni/C and GF ratio of 1:2.5 displayed a reflection loss (RL) value of ─63 dB with 15 wt% loading, while the thickness is only 1.76 mm. Further, its effective absorption bandwidth (EAB) reached to 5.4 GHz at 2 mm thickness. In addition, when the RL value is less than ─20 dB, the NCGF still manifests a wider bandwidth (2.2 GHz) and a relatively low thickness (1.76 mm). In addition to the extraordinary attenuation ability, the excellent MA performance is mainly ascribed to optimized impedance matching characteristics. Moreover, multiple reflections promoted by the dual-space structure also play a significant role during the microwave absorption process.
研究领域:
材料科学
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纳米复合材料
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电磁功能材料
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物理化学
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能源材料
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COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2023
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IF 5.2
Hao Wu,Tianyi Jiang,Wenlong Wu,Shanguo Zhang,Ming Li,Jingzhuo Zhou,Mengya Zhu,Juzheng Chen,Ziyong Li,Yang Lu,Hongyuan Jiang
Water-in-oil-in-water (W/O/W) double emulsion droplets are a typical colloidal system applied in various practical fields. However, certain high-specification applications necessitate exact geometric homogeneity in terms of both shell diameter and thickness. Despite achieving uniformity in shell diameter, on-chip microfluidic emulsification always leads to an eccentric phenomenon due to innate density differences of the droplet solution. At the same time, the current regulation methods have multiple limitations, including their applicability, regulatory scope, and objective restrictions. Herein, we propose an off-chip osmosis-induced hydrodynamic method to accurately regulate the eccentricity of W/O/W double emulsion droplets. The rational selection of hypertonic osmosis can energize the droplets and induce inward transmembrane water flux. This flow helps to reposition the droplet core to align concentrically with the shell, regardless of the initial dimension and eccentricity of the droplets. As the osmotic induction reduces due to the dilution of the inner solute molar concentration , the optimal droplet configuration can be achieved when osmosis-induced hydrodynamic regulation sufficiently counteracts the adverse effects of droplet solution density difference. The microcapsules can thus be produced by instant UV polymerization of the regulated double emulsion droplets, and the silica microspheres with fine geometric homogeneity can be prepared through further heat treatment, which is expected to meet the stringent morphological requirements in practical applications.
研究领域:
胶体与界面化学
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微流控技术
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生物材料
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药物递送系统
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高分子科学
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ACS Applied Polymer Materials
·
2026
·
IF 5.2
Zhihong Zhou,Lin Zhang,Zhiwei He
The development of facile-to-fabricate, long-lasting, and fluorine-free superhydrophobic surfaces still poses a key challenge for their versatile applications. In this work, a fluorine-free, durable, and photothermal superhydrophobic polyurethane (PU) platform is constructed by integrating polydimethylsiloxane (PDMS) microspheres and adjustable photothermal absorbers into the PU matrix with the aid of PDMS as a binder. When lignin particles are selected as the photothermal components, the resulting lignin-based superhydrophobic PU sponge shows outstanding chemical stability, hydrothermal resistance, and mechanical durability across various test conditions along with strong adsorption capacities for a range of oils and organic solvents. By substitution of the photothermal absorbers, a candle soot-modified or MXene-modified superhydrophobic PU platform can be readily fabricated. With lignin particles, candle soots, and MXene as the photothermal absorbers, the superhydrophobic PU platform reaches maximum surface temperatures of 65.4 °C, 76.2 °C, and 82.0 °C under 1 sun irradiation, respectively. Benefiting from its excellent photothermal performance, the superhydrophobic PU platform achieves adsorption capacities of 36.5 g/g, 56.2 g/g, and 41.1 g/g for viscous crude oil and separation efficiencies of 98.5%, 98.9%, and 98.7% for crude oil and adsorbs a crude oil droplet (1 mL) within 60 s, 30 s, and 28 s under 1 sun irradiation, respectively. Additionally, the superhydrophobic PU platform can efficiently separate oils (such as crude oil and carbon tetrachloride) from both water-in-oil and oil-in-water emulsions and maintains an ice-free state at −18.6 °C under 0.6 sun irradiation. This study not only realizes the sustainable high-value utilization of low-cost byproducts but also provides a strategy for the rational design of fluorine-free and durable superhydrophobic platforms with tailorable photothermal properties for multiple practical applications.
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Gels
·
2026
·Vol. 12
·期 6
·477
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IF 6.4
Han Fu,Qiwen Yao,Shuai Tan,Yingming Wang,Aishun Jin
Porous hydrogels are critical for tissue engineering and regenerative medicine, as they mimic the native extracellular matrix to support cell infiltration and mass transport. A common strategy for engineering pore structures involves the incorporation and subsequent removal of sacrificial porogen templates (e.g., crystals or microspheres). Although this approach offers excellent control over pore architecture, it often suffers from complex procedures and biosafety concerns arising from incomplete template removal. In this work, we present a simple, biocompatible, and versatile templating approach. By systematically investigating the coacervation parameters, we produced gelatin microspheres (GSs) with tunable diameters from 7 µm to 300 µm via a green, instrument-free, and scalable process. Using GSs of 20–160 µm as porogens, we obtained alginate hydrogels with adjustable viscoelasticity, stiffness, and pore sizes. We then validated two cell-loading strategies for bulk porous alginate hydrogels using immortalized human T (Jurkat) cells: (i) post-seeding into pre-formed pores supported high-density, long-term, and organized cell aggregates with >90% viability; (ii) in situ encapsulation (prior to pore formation) yielded >80% viability and preserved the cluster-forming growth characteristics of Jurkat cells. Moreover, composites of smaller GSs (7–20 µm) with alginate could be syringe-extruded into stable, sub-millimeter porous filaments, demonstrating the potential for 3D printing. Collectively, this work provides a promising platform for three-dimensional culture of immune cells.
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CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Xiaotong Si,Yihan Ma,Si Wu,Tao Jiang,Yifan Wang,Chen Yang,Menglu Gao,Zhihan Zhang,Xuan Xiao,Fubing Wang,Yi Yang
Developed a portable smart POCT device for home testing of three major UTI pathogens. • Synergistic lensing-nanojet optical enhancement enables highly sensitive detection. • Composite microspheres enable highly specific wash-free multiparameter immunoassay. • Complete testing requires only 30 min at $1.5 per test with accuracy above 90%. Urinary tract infection (UTI) is one of the most common diseases during pregnancy, caused by multiple microbial pathogens and posing significant risks to both maternal and fetal outcomes. Current diagnostic methods are limited by prolonged detection times or require a certain degree of sample preprocessing, making it difficult to meet the needs of personalized at-home testing for pregnant patients. To more effectively address this requirement, we developed an intelligent point-of-care (POC) testing platform based on the composite microsphere-based optical signature-enhanced detection (CMOSED), enabling highly sensitive and real-time personalized diagnosis of three major bacterial pathogens. The platform employs four carboxyl-functionalized polystyrene (PS) microsphere size classes, including three small antigen-coded microspheres and one large antibody-carrying microsphere. Through the synergistic interaction between the microsphere lensing effect and the photonic nanojet (SIMLN), the system achieves high-precision target recognition even within complex urinary matrices; through the dynamic response of microsphere assemblies to varying target concentrations, it enables accurate detection of analyte levels; through the AI-assisted diagnostic system for Urinary Tract Infections in Pregnancy (AID-UTIP), it achieves rapid, personalized home-based testing. The system achieves high sensitivity and specificity detection for the three major UTI pathogens within 30 min at a cost below $1.5 per test. A prospective clinical evaluation ( n = 25) demonstrated detection accuracies of 96% for UPEC , 92% for Klebsiella pneumoniae , and 92% for Enterococcus faecalis . By integrating diverse antigen-antibody combinations, this method offers a rapid, cost-effective, and extensible strategy for multi-pathogen detection, representing a promising paradigm for intelligent, decentralized infectious disease diagnostics in home-based pregnancy care.
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POLYMER ENGINEERING AND SCIENCE
·
2026
·
IF 3.6
Guantong Wang,Hongjie Kang,Hongli Zhu,Xiaoyue Hu,Shaoshuai Shi,Kuan Jiang,Shan Wang,Hongyu Gong
Considering the severity of electromagnetic pollution together with practical requirements in the real world, the development of versatile electromagnetic wave absorbers is imperative. Herein, phenyl silicone rubber/hollow microsphere/CNTs (SR/HM/CNTs) foams were successfully produced via a simple preparation process. Owing to the polarization mechanisms, leakage pathways, and 3D porous structure, SR/HM/CNT foams possess high dielectric loss capability for electromagnetic wave attenuation. Notably, the SR/HM/CNTs foam with 15 wt% filler content exhibits effective absorption across the entire X-band (8.2–12.4 GHz) with a minimum reflection loss (RL min ) of −37.77 dB at 9.89 GHz. The mechanism of electromagnetic wave absorption shows that strong absorption performance stems from significant conductive loss, multiple attenuation pathways, and favorable impedance matching. Meanwhile, SR/HM/CNTs foams exhibit lightweight (0.301–0.356 g/cm 3 ) and possess low thermal conductivity (0.085–0.136 W·m −l ·K −l ) owing to their closed-cell structure. The suppressed heat transfer confers infrared stealth, underscoring their potential in defense-related uses. Overall, this work proposes an easily implemented strategy for constructing multifunctional, high-performance microwave absorbers. Highlights SR/HM/CNTs foams were prepared using expandable microspheres as foaming agent. SR/HM/CNTs foams had effective absorption bandwidth in the full X band. SR/HM/CNTs foams possess thermal insulation features for infrared stealth.
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ACS Applied Materials & Interfaces
·
2026
·Vol. 18
·期 35
·48124-48134
·
IF 7.8
Lv Haoning,Yi Xing,Chen Kai,Yin Xia,Zhang Xinxin,Liu Yitao,Skorik Yury A.,Yu Jianyong,Ding Bin
With the increasing emission of particulate matter (PM) from industrial and transportation activities, the demand for filtration materials exhibiting high thermal and chemical stability is growing. Nanofiber materials have attracted significant attention owing to their small fiber diameter, high porosity, and large specific surface area, which enhance their initial filtration efficiency. However, their densely packed architectures and uniform pore distributions lead to rapid surface cake formation, increasing airflow resistance and limiting dust-holding capacity. In contrast, three-dimensional gradient aerogel structures incorporate multiscale pore channels that facilitate depth filtration. Such architectures provide greater dust storage capacity and delay pore blockage, thereby significantly improving overall filtration performance. Here, gradient nanofiber aerogels (MGPAs) with a microsphere structure were successfully fabricated based on a single-component polyimide system. Utilizing single-component materials enhances recyclability and ensures uniform thermal expansion under temperature fluctuations, which is crucial for high-temperature filtration applications. The prepared material exhibits a dual-layer gradient nanofiber aerogel structure, comprising coarse fibers (≈730 nm) and medium fibers (≈300 nm). Furthermore, a composite functional layer composed of microspheres (≈3.34 μm) and ultrafine fibers (≈60 nm) was deposited onto the medium-fiber layer surface. Benefiting from this hierarchical structure, the MGPAs exhibit a PM 0.3 filtration efficiency of 99.996%, with an initial pressure drop as low as 45.08 Pa, and a dust-holding capacity of 127 g/m 2 . Even at 300 ° C, it maintains a filtration efficiency of 99.91%. This demonstrates their excellent thermal stability. The developed MGPAs offer significant potential for high-temperature exhaust gas filtration applications.
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Advanced Science
·
2025
·
IF 14.1
Anfu Deng,Hao Zhang,Yan Hu,Jilong Li,Jian Wang,Xiao Chen,Zhen Geng,Ke Xu,Yuxiao Lai,Jianhua Wang,Yingying Jing,Long Bai,Jiacan Su
Repairing large bone defects remains a major challenge, as current strategies-including autografts, allografts, and tissue-engineered scaffolds-are limited by donor shortage, suboptimal biocompatibility, and insufficient control of the regenerative microenvironment. Bone organoids offer a promising strategy by simulating bone tissue functions and microenvironments in vitro, showing great potential for bone repair. However, current bone organoids still face issues such as insufficient oxygen supply, and limited immune modulation, reducing their effectiveness for complex bone defect repair, especially when precise shape conformity is required. To address these challenges, bone organoid unit based on silk hydrogel microspheres is developed, introducing oxygen-releasing components and immune cells to better mimic the bone repair environment and enable conformal filling of irregular defects. In vitro, the system formed bone organoid units through 28 days culture that sustained cell viability, promoted M2 macrophage polarization, and enhanced osteogenesis and angiogenesis. In a critical-sized mouse cranial defect model, this strategy outperformed traditional approaches, showing superior bone regeneration and tissue integration. These findings indicate that the strategy effectively addresses key obstacles in bone repair, such as oxygen supply, immune modulation, and shape conformity, providing a promising solution for personalized bone regeneration.
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Food Chemistry-X
·
2025
·
IF 8.2
Su Han Wang,Jian Ping Wang,Cheng Feng
The residues of fluoroquinolones in foods of animal origin posed many threats to the consumer's health. The aim of this study was to developed a magnetic molecularly imprinted microsphere and aggregation induced emission luminogen based semi-homogeneous method for determination of fluoroquinolones in milk. Results showed the limits of detection for determination of 20 fluoroquinolones in milk were in the range of 0.4–11 pg/mL. The sensitivities were increased for up to 4329 folds in comparison with fluorescein isothiocyanate labeled tracer. Due to the ultra-high sensitivity, the milk sample could be analyzed directly after a 100-fold dilution, and the recoveries from fluoroquinolones fortified blank milk samples were in the range of 69.68 %–97.19 %. The method performances were better than the previous fluorescent (immune)assays for fluoroquinolones. This is the first paper reporting the use of magnetic molecularly imprinted microsphere and aggregation induced emission luminogen for determination of veterinary drug in food sample.
研究领域:
食品安全检测
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分析化学
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生物医学工程
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PubMed
高影响因子
MICROCHEMICAL JOURNAL
·
2025
·
IF 5.1
Jing Wang,Shiyu He,Mingfu Ye,Yongping Dong
The inherent water insolubility of iridium complexes seriously restricts their application in aqueous electrochemiluminescence (ECL) sensing systems. In order to solve this problem, this study innovatively used water-soluble polymer polyvinyl alcohol to encapsulate the iridium complex ([Ir(dFppy) 2 (d(t-Bu)bpy)](PF 6 )) in a hydrogel, and successfully obtained nanosheets of iridium complex (IrNS) with good dispersion. Systematic studies on the behavior of IrNS ECL in aqueous media showed strong and stable cathodic ECL when persulfate (S 2 O 8 2− ) was used as a co-reactant. Notably, the introduction of rhenium disulfide microspheres (ReS 2 MS) can produce significant cathodic ECL enhancement effects by efficiently catalyzing the conversion of S 2 O 8 2− to generate more SO 4 − . Bisphenol A (BPA) can react with S 2 O 8 2− to reduce the ECL intensity, based on which an ECL sensor was constructed for its detection. Under optimal conditions, ECL intensity varied linearly with BPA concentration, ranging from 1.0 × 10 −10 to 1.0 × 10 −5 mol L −1 with a detection limit of 5.5 × 10 −12 mol L −1 . The fabricated sensors with high sensitivity and selectivity provide a new avenue for the application of water-insoluble iridium complexes in ECL sensing.
研究领域:
分析化学
·
环境科学
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CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Chen Yang,Xin Zhang,Minjing Mo,Guoqing He,Menglu Gao,Tao Jiang,Yihan Ma,Xiaotong Si,Rui You,Fubing Wang,Yi Yang
Human serum albumin (HSA) in blood testing is clinically important in assessing nutrition, liver and kidney function, inflammation, and chronic diseases. However, traditional HSA testing methods require large equipment, high costs and specialized operators, which cannot meet the demand for portable HSA detection. Here we present a filtration-to-enhancement compound microsphere module (F-ECMs), which achieves wash-free and highly sensitive HSA detection. The F-ECMs utilizes tightly linked filtration module and enhancement module to provide wash-free detection while reducing the limit of detection (LoD) of HSA by 2.048-fold. The filtration module utilizes 30 μm encoded microspheres to achieve wash-free detection, and the enhancement module utilizes the focusing and microcavity effects of 8 μm microsphere for fluorescence enhancement. Customized homomorphic filters can further enhance the image signal and achieve highly sensitive HSA detection. Integrated portable device and smartphone app analysis module enables point-of-care testing (POCT). In this study, the LoD of HSA in blood reaches 0.375 mg/mL and the detection range is 0.1 – 100 mg/mL. The detection time is only 20 min. Double-blind detection was performed on 29 real plasma samples from patients, and its accuracy was achieved 93.10%. This platform provides a new wash-free and fluorescence enhancement strategy for portable HSA detection with high specificity and sensitivity.
研究领域:
生物医学工程
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临床检验
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光学检测
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危险品化学品经营许可证（带存储）