Journal of Manufacturing and Materials Processing
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2026
·Vol. 10
·期 1
·41
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IF 3.3
Ziqi Wang,Jun Xu,Yingjie Niu,Yuanyuan Tan,Biqi Yang,Chenglin Yi
Promoting the development of aerospace vehicles toward structural–functional integration and intelligent sensing is a key strategy for achieving lightweight, high-reliability, and autonomous operation and maintenance of next-generation aircraft. However, traditional external sensors face significant limitations because of their bulky size, installation challenges, and incompatibility with aerodynamic surfaces. These issues are particularly pronounced on complex, high-curvature substrates, where achieving conformal bonding is difficult, thus restricting their application in critical components. In this study, aerosol jet printing (AJP) was employed to directly fabricate silver nanoparticle-based temperature sensors with real-time monitoring capabilities on the surface of high-curvature stainless steel sleeves, which serve as typical engineering components. This approach enables the in situ manufacturing of high-precision conformal sensors. Through optimized structural design and thermal treatment, the sensors exhibit reliable temperature sensitivity. Microscopic characterization reveals that the printed sensors possess uniform linewidths and well-defined outlines. After gradient sintering at 250 °C, a dense and continuous conductive path is formed, ensuring strong adhesion to the substrate. Temperature-monitoring results indicate that the sensor exhibits a nearly linear resistance response (R2> 0.999) across a broad detection range of 20–200 °C. It also demonstrates high sensitivity, characterized by a temperature coefficient of resistance (TCR) of 2.15 × 10−3/°Cat 20 °C. In repeated thermal cycling tests, the sensor demonstrates excellent repeatability and stability over 100 cycles, with resistance fluctuations kept within 0.5% and negligible hysteresis observed. These findings confirm the feasibility of using AJP technology to fabricate high-performance conformal sensors on complex surfaces, offering a promising strategy for the development of intelligent structural components in next-generation aerospace engineering.
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JOURNAL OF MATERIALS IN CIVIL ENGINEERING
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2026
·Vol. 38
·期 4
·04026020
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IF 3
Shinan Liu,Houzhi Wang,Jun Yang
The antioxidant qualities of phenolic chemicals found in asphalt have drawn a lot of attention. By comparing theoretical calculations with experimental results, we evaluate the applicability of various antioxidant indices for assessing the efficacy of phenolic antiaging compounds in asphalt and unveil the antiaging mechanism of phenolic antioxidants in asphalt. By analyzing the correlation between oxygen radical absorbance capacity values and asphalt experimental results as well as the correlation between bond dissociation energy (BDE) and asphalt experimental results, it can be observed that the antioxidant mechanism of phenolic compounds in asphalt aligns with the hydrogen atom transfer (HAT) mechanism. In contrast, ferric reducing antioxidant power values, vertical ionization potential, electronegativity (χ), chemical hardness (η), and electrophilicity index (ω) show no correlation with any asphalt experimental results, indicating that the antioxidant mechanism of phenolic compounds in asphalt is not based on the single electron transfer (SET) mechanism. This suggests that the antioxidant mechanism of phenolic antioxidants for asphalt is not the HAT mechanism but rather the SET mechanism, related to the phenolic hydroxyl content, the arrangement of hydroxyls in the ortho-dihydroxy conformation and BDE values of the phenolic O─ H bond. These results indicate that enhancing the antioxidant activity of phenolic antioxidants may be achieved by reducing the BDE of the phenolic O─ H bond, modifying the arrangement of hydroxyls, and increasing the phenolic hydroxyl group content.
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CHINESE JOURNAL OF POLYMER SCIENCE
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2026
·
IF 4.6
Li Zheng,Yao Mu-Tian,Qiu Zi-Yang,Xu Jing-Kun,Lu Bao-Yang
The development of solar-driven interfacial evaporation technology is pivotal for addressing global water scarcity. However, it is hindered by the difficulty in synergizing high photothermal conversion with low water evaporation enthalpy into a single material. Herein, we propose an iron-aldehyde-cooperative dynamic covalent anchoring strategy, successfully constructing a covalently locked, hydroxymethyl-functionalized PEDOT-PVA integrated dual-network hydrogel (MEPH). This strategy employs Fe 3+ to achieve the one-step in situ oxidative polymerization of hydroxymethyl EDOT while concurrently forming a physical hybrid network with PVA, which is subsequently reinforced by covalent cross-linking using glutaraldehyde. This design endows the MEPH with exceptional broadband light absorption (>99%), efficient water transport, and regulated water state within the hydrogel matrix, leading to a reduced evaporation enthalpy of 732 J·g −1 . The resulting evaporator achieves an ultrahigh evaporation rate of 4.95 kg·m −2 ·h −1 under 1-sun illumination, corresponding to an energy conversion efficiency exceeding 95%, while maintaining stable, salt-resistant operation in high-salinity environments. Outdoor experiments validate its outstanding practicality for seawater and wastewater purification, with the produced freshwater significantly promoting plant growth, highlighting its great potential in sustainable agricultural water cycles. This iron-aldehyde-cooperative dynamic covalent anchoring strategy provides an innovative design paradigm for a new generation of high-performance and robust solar evaporators.
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APPLIED CATALYSIS B-ENVIRONMENTAL
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2026
·
IF 19.7
Ruirui Wang,Hasnain Nawaz,Linbo Huang,Sheng Zhong,Shuang Wei,Bin He,Ruixia Liu,Suojiang Zhang
Electrochemical CO 2 reduction to highly selective ethylene is particularly desirable yet challenging. The competition between methane and ethylene in the CO 2 RR process underscores the critical necessity of designing the catalyst for ethylene by suppressing the methane pathway. Herein, we introduced controllable Cu(II)/Cu(I) interfaces by regulating the ratio of ionic liquids (ILs) and H 2 O. The Cu x O-IL4 catalyst with main CuO/Cu 2 O structure, exhibits a high Faraday efficiency toward C 2 H 4 (∼54 %) and less CH 4 (∼1 %) under 250 mA·cm −2 current density at −1.18 V (vs RHE). Experimental and theoretical analyses demonstrate that Cu(I) sites favor CO bridge formation, while Cu(II) sites preferentially generate CO atop on Cu x O-IL4 catalysts. The Cu(II)/Cu(I) interface in Cu x O-IL4 facilitates the generation of CO bridge intermediates, thereby lowering the energy barrier for *CO dimerization and also preventing *CO hydrogenation to CH 4 formation, thus enhancing the selectivity of CO 2 -to-ethylene conversion. The study provides a novel approach for precisely controlling CO adsorption configurations to enhance CO 2 RR selectivity toward high-value multicarbon products formation.
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INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2026
·
IF 8.7
Qing Chen,Sitian Wang,Jiarui Jiang,Lianwen Hu,Fuge Niu,Weichun Pan,Yanbo Wang,Xiaoxiang Han
To develop novel antibacterial agents, chitosan (CS) was converted into O -carboxymethyl chitosan (O-CMC), which was then reacted with perillaldehyde and perilla essential oil to synthesize Schiff base derivatives (P-CCSB and PEO-CCSB). Comprehensive characterization via FTIR, 1 H NMR, SEM, EA, XRD, DSC, TGA, and XPS verified the successful synthesis and structural features of these compounds. The derived carboxymethyl chitosan Schiff base (CCSB) exhibited superior antibacterial performance compared to CS and O-CMC, attributable to its reactive Schiff base moiety, nanoscale particle size, elevated cationic charge density, and improved water solubility. After 10 days of storage of large yellow croaker, the total volatile basic nitrogen (TVB-N) and total viable count (TVC) values of the PEO-CCSB group decreased by 10.30 mg/100 g and 1.31 lg (CFU/g), respectively, compared with those of the blank group. These results highlight PEO-CCSB as a promising antimicrobial coating for food preservation.
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FOOD CHEMISTRY
·
2026
·
IF 10.4
Yan Sun,Lichun Yang,Leilei Wang,Yi Hou,Qin Luo,Xinglong Tao,Min Xie,Yongjun Hu
Accurate and rapid detection of glucose is of great significance for food safety and public health. In this study, we developed an Fe 3 O 4 @COF@Au(GOx) substrate based on magnetic COF materials. This substrate exhibits excellent adsorption capacity, enzymatic activity, and surface-enhanced Raman scattering (SERS) enhancement effect. This substrate can trigger a color reaction of 3,3′,5,5′-tetramethylbenzidine (TMB) and a change in the signal intensity of SERS when glucose is present. The ethanol Raman signal is used as the ratio signal to achieve the dual detection mode of colorimetric - ratiometric SERS. The dual-mode detection method boasts extremely high sensitivity and excellent selectivity with limits of detection for glucose of 0.17 μM in colorimetric and 10.7 nM in SERS. The dual-mode detection method effectively combines the simplicity of colorimetric detection with the high sensitivity of SERS, providing a highly promising solution for the detection of glucose in practical applications.
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Green Chemical Engineering
·
2026
·
IF 11.9
Chuan-Bin Li,Ling-Yu Dong,Yi-Fan Wang,Guang-Ping Hao
Electrosynthesis of hydrogen peroxide (eH 2 O 2 ) offers a facile and environmentally benign synthesis alternative through selective two-electron oxygen reduction reaction (2e – ORR). Carbon-based nonprecious electrocatalysts are promising for 2e – ORR, however, its efficiency is often limited by low intrinsic activity and limited accessibility of catalytic sites. Here, we present a family of carbonyl rich carbon spheres with surface wrinkle structure, which was engineered to boost the activity for 2e – ORR and to enlarge its electrochemical active surface area. As compared to common O-doped carbon spheres, our materials with controlled surface wrinkles delivered a 10-fold enhancement of accessible active surface area. Extensive catalytic tests together with characterizations indicate carbonyl moieties are the predominant active sites for O 2 activation. In 0.1 M KOH electrolyte, the catalyst delivered the H 2 O 2 selectivity of > 97.5% over a large potential range from 0-0.67 V vs . RHE, which resulted in a H 2 O 2 production rate of 385 mmol/(g·h) at 0 V vs. RHE. This study provides a useful surface structure fine modulation method for the development of heteroatom-doped carbon electrocatalysts for selective H 2 O 2 synthesis.
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CHEMICAL ENGINEERING JOURNAL
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2026
·
IF 12.5
Limin Gu,Ziyan Ren,Shuai Li,Renjie Song,Xueqing Qin,Yan Su,Haixia Wu,Linya Zhang,Fengxia Sun
The development of high-performance bio-based flame retardants is crucial yet challenging for polymers. This study designed and synthesized a fully bio-based multifunctional flame retardant (PLV) composed of phytic acid (PA), vanillin (Van), and l -lysine (L-lys). This flame retardant contains abundant phenolic hydroxyl groups, enabling covalent incorporation into the polyurethane backbone at low temperatures (55 °C). Through crosslinking chains, it ultimately forms a three-dimensional network structure, successfully creating a sustainable polyurethane material (PLWPU) that integrates flame retardancy, mechanical properties, and antimicrobial functionality. This system overcomes the limitations of traditional additive flame retardants, such as migration loss and reliance on fossil-based raw materials, while also avoiding the high energy consumption associated with high-temperature polymerization processes. Performance test results indicate that when the PLV content is 20%, the limiting oxygen index (LOI) of PLWPU-4 is 32.7%, achieving a UL-94 rating of V-0. It also reveals significant reductions in total heat release (THR), total smoke production (TSP), and peak smoke production rate (pSPR) by 34.27%, 63.41%, and 50.79%, respectively, compared to unmodified waterborne polyurethane (WPU). PLWPU-3 also exhibits a 36% antibacterial rate against Escherichia coli ( E. coli ). This work provides innovative insights for developing high-performance, multifunctional, and sustainable polymer materials, expanding the application potential of water-based polyurethanes in high-end coatings, biomedicine, and other fields.
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Materials Today Chemistry
·
2026
·
IF 7.4
Zhizhuo Liu,Hongqi Liang,Ao Qu,Wei Fan,Baozeng Sun,Shuqi Zhao,Yue Chang,Yuzhe Guo,Ziyi Wang,Yingnuo Liu,Jingmei Xu
In this paper, cationic MIL-101-NH 2 (C-T-MOF) was synthesized by modified MIL-101-NH 2 . In order to reduce the erosion of functional sites by OH − , the amino group on the MIL-101-NH 2 framework was modified with a trimethyl quaternary ammonium group to obtain a C-T-MOF metal-organic framework with greater spatial hindrance. Afterwards, Im-PPO was prepared by imidazole functionalized PPO, Im-PPO-x was obtained by grafting the cationic 1-allyl-3-methylimidazole chloride (AMIMCl). Subsequently, the series of Im-PPO-1/C-T-MOF-x% AEMs were constructed through a composite preparation process, utilizing C-T-MOF as the filler phase and Im-PPO-1 as the continuous phase. The structure of the composite membranes was characterized by FT-IR and PXRD, and the experimental findings illustrated that the composite membranes were successfully prepared. As demonstrated by the performance results, the conductivity of Im-PPO-1/C-T-MOF-1% composite membrane reached a maximum value of 0.153 S cm −1 (80 °C, 100% RH), and the tensile strength was 44.93 MPa. In addition, the Im-PPO-1/C-T-MOF-1% composite membrane can still reach 90.3% of the initial conductivity after being immersed in NaOH solution (1 M) at 60 °C for 720 h. The findings demonstrated that the composite membranes exhibited elevated levels of ionic conductivity, good tensile strength and alkali resistance stability. In conclusion, the cationic MIL-101-NH 2 (C-T-MOF) made a significant contribution to the enhancement of the overall performance of composite anion exchange membranes.
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CHINESE JOURNAL OF POLYMER SCIENCE
·
2026
·
IF 4.6
Han Yan-Chun,Li Fang-Shuo,Zhang Jian-Chao,Wang Quan,Yang Guo-Hui,Yu Miao,Wang Feng,Duan Yong-Xin,Zong Lu,Li Bo-Xiao,Zhang Jian-Ming
Silica aerogels (SAs) impart low density and excellent thermal insulation to polymer systems, yet incorporating hydrophobic SAs into aqueous rubber latex systems remains challenging owing to their poor dispersibility and potential to destabilize the latex. Although previous studies have dispersed SAs in aqueous poly(vinyl alcohol) (PVA), the stability of such dispersions and their effectiveness as bridging media for latex integration have not been thoroughly evaluated, which limits their practical application in latex compounding. This study systematically examined how the surface chemistry governs hydrolytic stability, interfacial behavior, and latex compatibility in PVA-assisted aqueous processing. Two hydrophobic SAs were prepared: ethoxy-modified SA (E-SA) and methyl-modified SA (M-SA). Both initially formed a homogeneous PVA slurry, but E-SA rapidly hydrolyzed its surface —OCH 2 CH 3 groups, releasing ethanol, becoming hydrophilic, and undergoing irreversible nanopore collapse. In contrast, M-SA maintains its structural integrity and hydrophobicity because its —Si(CH 3 ) 3 groups are highly resistant to hydrolysis. This divergence dictates the behavior during latex blending. The ethanol released from E-SA disrupts electrostatic and steric stabilization, inducing latex coagulation, whereas M-SA/PVA dispersions preserve colloidal stability across diverse latex systems. As a practical demonstration, M-SA-reinforced chlorosulfonated polyethylene (CSM) rubber latex composites show more than a 50% reduction in thermal conductivity while maintaining chemical resistance, enabling high-performance insulating protective gloves and coatings. This work establishes a critical link between aerogel surface chemistry and aqueous processing stability, providing a mechanistic foundation for the rational design of water-based rubber/silica aerogel composites and next-generation thermal insulation materials.
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CHEMICAL ENGINEERING SCIENCE
·
2026
·
IF 5.1
Bingqing Huang,Xiaoying Lin,Yifan Liu,Yuancai Lv,Chunxiang Lin,Liang Song,Jianhui Huang,Minghua Liu,Guifang Yang,Xiaoxia Ye
The escalating demand for nuclear energy, coupled with the finite nature of terrestrial uranium resources, necessitates the exploration of sustainable seawater uranium extraction. Here, we report the rational design and facile synthesis of a novel composite adsorbent, SCMPA-2/CF, for efficient and biofouling-resistant seawater uranium extraction. This adsorbent integrates collagen fibers (CF), derived from leather waste, with sulfonated conjugated microporous poly(aniline)s (SCMPAs). The composite was fabricated via a Buchwald-Hartwig coupling reaction, grafting sulfonic acid-functionalized SCMPA-2 onto the hierarchical porous structure of CF. The inherent hierarchical porosity of CF significantly accelerates mass transfer, while its surface amino groups provide anchoring sites for the functional SCMPA-2 particles. The strategically incorporated −SO 3 - exhibit a synergistic effect, achieving high-capacity U(VI) adsorption through combined electrostatic attraction and chemical chelation. Furthermore, the conjugated microporous poly(aniline) structure imparts antibacterial properties, ensuring long-term performance. Adsorption experiments demonstrate remarkable performance: over 90% U(VI) uptake within 30 min, a Langmuir maximum adsorption capacity of 642 mg g −1 , exceptional U(VI) selectivity with a distribution coefficient ( K d ) of 5.67 × 10 6 mL g −1 , and a substantial capacity of 3.14 mg g −1 retained after two weeks of continuous sea trials. The composite also exhibited strong antibacterial activity, with over 91% inhibition rates against E. coli and S. aureus . Notably, the estimated production cost is as low as 1.10 USD·g −1 , attributed to the utilization of cost-effective waste biomass. This work establishes a green, high-performance, biofouling-resistant, and economically viable adsorbent for seawater uranium extraction, offering a promising avenue for developing nuclear energy resources from waste biomass.
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INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2026
·
IF 8.7
Fangjun Wu,Juan Sun,Zheng Nie,Fujie Lai,Xudong Yang,Shaoyang Chen,Yang Wang
In the context of the ongoing normalisation of the SARS-CoV-2, the number of patients infected with the new coronavirus remains high on an annual basis. It is therefore imperative that individuals have access to rapid and cost-effective diagnostic tests. Conventional diagnostic tests,such as Reverse Transcription-Quantitative Polymerase Chain Reaction(RT-QPCR), Enzyme-Linked Immunosorbent Assay(ELISA) are costly and cumbersome, impeding their application in single-sample detection. This study has developed a cost-effective lateral flow immunoassay that rivals the sensitivity and simplicity of ELISA and colloidal gold tests, facilitating rapid and affordable detection of SARS-CoV-2 antigen. The synthesis of Fe 3 O 4 particles with a diameter of approximately 150 nm was initially conducted via a solvothermal method. Subsequently, the preparation of Fe 3 O 4 @PMAA particles with carboxyl groups, was undertaken through a reflux precipitation polymerization. Finally, the above particles were coupled with mouse anti-coronavirus SARS-CoV-2 N protein IgG by standard NHS/EDC methods to obtain Fe 3 O 4 @PMAA@IgG nanoprobe. This nanoprobe was then used as an immunoconjugate pad for the detection of the SARS-CoV-2 nucleoprotein. The nanoprobe-based method demonstrated significant advantages in cost-effectiveness and timeliness (with an assay duration of only 1 min), costing approximately $0.13 per sample. When used for SARS-CoV-2 antigen detection, this cost represents only 0.02% of that of RT-QPCR and 0.05% of that of ELISA.The detection limit of the lateral flow immunoassay is (0. 5 ng/mL).
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