MICROCHIMICA ACTA
·
2026
·Vol. 193
·期 5
·310
·
IF 5.4
Lu Xia,Wang Long,Gao Qinyi,Zhang Xianglin,Wang Yuxin,Wang Fang,Yang Xujin,Ge Wupeng
A novel fireproof material@UIO-66-gold nanoparticles (AS@UIO-66-AuNPs) fiber network using low-cost fireproof material (AS) via an in-situ synthesis strategy has been developed. This functionalized network anchors specific aptamers (Apt), creating a highly efficient aptamer affinity column for the sensitive detection of aflatoxin B1 (AFB1) in food samples. Notably, this work focuses on the construction of an aptamer-based affinity pretreatment column rather than a signal-output sensing platform, aiming to improve target enrichment and matrix cleanup prior to instrumental analysis. Under optimized conditions, the method demonstrated excellent analytical performance, with a linearity range of 1–100 µg/kg and a detection limit of 0.157 µg/kg. Validation with spiked recovery experiments on corn, soybean meal, and rapeseed meal showed satisfactory recoveries and strong agreement with a commercial detection kit. The method also exhibited excellent reproducibility and reusability. Overall, the AS@UIO-66-AuNP/Apt system represents a cost-effective, stable, and selective strategy for the pretreatment and enrichment of AFB1, with potential applicability to other targets through aptamer replacement, thereby supporting the development of multifunctional aptamer affinity columns. Graphical abstract The alt text for this image may have been generated using AI.
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JOURNAL OF MATERIALS SCIENCE
·
2026
·
IF 4.4
Haoting Niu,Shuo Tang,Moyong Li,Lilu Guo,Lulu Qin,Liuyun Jiang,Anji Chen,Xiang Hu
A novel multifunctional double-network hydrogel composed of carboxymethyl chitosan-oxidized sodium alginate-poloxamer (PF127) loaded with Panax notoginseng saponins (OSA/CM/PF127@PNS) was developed for intrauterine adhesion therapy. FT-IR spectroscopy confirmed acetalation crosslinking between OSA and CMC, as evidenced by characteristic imine peak (1636 cm⁻ 1 ). SEM observations revealed the hydrogel possessed a porous microstructure, with robust self-healing capability validated (by rheological cyclic strain tests), a maximum swelling ratio of 1155%, and sustained PNS release reaching 52.2% at 24 h. In vitro degradation studies indicated the stability under physiological pH (7.4) was enhanced due to the dual-crosslinked network. Moreover, the hydrogel exhibited potent antibacterial activity (> 90% inhibition against E. coli and S. aureus ), antioxidant capacity, and excellent hemocompatibility (< 5% hemolysis). The hydrogel showed exceptional biocompatibility in cellular assays. Notably, PNS loading significantly suppressed pro-inflammatory cytokines (TNF- α , IL-1 β , IL-6) at the mRNA level and inhibited NF- κ B signaling at the protein level. Furthermore, it promoted angiogenesis in vitro, evidenced by upregulated angiogenesis-related proteins. Therapeutically, the hydrogel significantly accelerated wound healing in a murine model (> 90% closure by day 9) and effectively promoted endometrial regeneration in a rat IUA model. This work provides a novel and promising strategy based on natural polymer-based hydrogels, demonstrating its potential for the treatment of intrauterine adhesions and regenerative medicine.
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Nature Communications
·
2026
·
IF 18.1
Yin Chenxu,Sun Zhecheng,Tang Kunlin,Zou Weixin,Wan Haiqin,Liu Zhao-Qing,Dong Lin
Photocatalytic reduction of CO 2 to natural gas using water vapor is a promising strategy for carbon recycling and renewable energy storage. However, the selectivity of current catalysts still remains a big challenge. Herein, we construct IrCu alloys on TiO 2 nanosheets to promote photocatalytic CO 2 to methane with 98.6% selectivity and 7.9% quantum efficiency at 365 nm under non-sacrificial ambient conditions. The performance is competitive with most other reported metal-based photocatalysts. Experimental and theoretical calculations demonstrate that the intensive H 2 O adsorption on Ir/TiO 2 hinders *H transfer, inevitably generating the H 2 by-product. Conversely, hydrophobic Cu effectively optimizes the interfacial hydrogen-bond network on IrCu/TiO 2 , predominantly in H-down configurations for H 2 O adsorption on the asymmetric charge-polarized Cu δ+ -Ir δ- structure, which facilitates the kinetic migration of dissociated *H to *CO-Cu sites, resulting in the reduced energy barrier for the key *CHO intermediate. This finding enables high CH 4 selectivity on IrCu/TiO 2 , deepening our understanding of gas-solid interfacial water vapor in the enhanced natural gas synthesis.
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INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
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2026
·
IF 3.7
Zhang Zhihui,Deng Jianxin,Lu Yang,Tang Xujie
In this study, electrojet micro-printing was used to deposit a checkerboard-textured (CF x ) n /CaF₂/C-ZrO₂/TiO₂ soft-hard composite coating onto the rake face of the YT15 tool. The microstructure of the coating was characterised, and the influence of graphite content in the lubricating phase on cutting performance during dry machining of 304 stainless steel was explored. The results indicate that the incorporation of textured hard phases and graphite significantly improved cutting performance. Among the samples, the CBM2 coating, with higher carbon content, showed the lowest cutting forces and friction coefficients at cutting speeds of 50–150 m/min. In contrast, the CBM1 coating, with lower carbon content, exhibited the least tool wear and best performance at 200 m/min, due to the embrittlement of excess graphite at high temperatures.
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Advanced Fiber Materials
·
2026
·
IF 22.6
Du Xiangheng,Chen Long,Yu Rouhui,Fan Zhongyao,Chen Yaqi,Zhou Tao,Bai Xiaowen,Zhu Meifang,Pan Shaowu
Bioelectronics interface with living systems to capture physiological signals and advance our understanding of health. However, the aqueous and dynamically deforming nature of biological tissues poses significant challenges to the structural stability and long-term reliability of bioelectronic devices, particularly at internal interfaces between dissimilar materials. Here, we report robust and stretchable bioelectronics (RSB) that achieve exceptional aqueous and mechanical stability by introducing a mechanically interlocking interface inspired by traditional wooden mortise–tenon structures. In the RSB, conductive poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) is integrated with fibrous network-decorated elastomeric matrices via spin coating and laser-induced phase separation. As a result, the bioelectronics maintain conductivity under tensile strains exceeding 100% and stable impedance after continuous immersion in phosphate-buffered saline (PBS) for over 30 days. Moreover, the RSB enables high-fidelity electrocardiogram (ECG) monitoring and electrical stimulation-mediated restoration of normal sinus rhythm in rat models. Beyond biological systems, the bioelectronics can be integrated onto robotic fingertips, establishing a paradigm for robot-assisted acquisition of physiological signals through direct human–robot contact. The flexible interlocking interface provides a versatile platform for robust, stretchable, and long-lasting bioelectronic systems across biological and robotic interfaces. Graphical abstract
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Food and Bioprocess Technology
·
2026
·Vol. 19
·期 10
·516
·
IF 5.6
Wang Shaojun,Cao Huaqiang,Ao Sha,Li Yan,Liu Shilin
Lycopene is a naturally occurring lipophilic carotenoid. However, its practical application is severely limited by its poor water solubility and high chemical instability. This study was aimed to develop a high-loading lycopene microcapsule formulation through firstly improving lycopene solubilization by using a hydrophobic natural deep eutectic solvent (NADES) and then enhancing its stability through spray drying microencapsulation. Under thermal–ultrasonic treatment, the optimized NADES was achieved a maximum process-assisted lycopene loading capacity of 30 mg/g. Furthermore, under heating at 80 °C for 8 h, lycopene retention in the microcapsules was 56.53%, compared with 8.27% in the corresponding free solution. Microencapsulation significantly improved the stability of highly loaded lycopene. During 4 weeks of storage at 25 °C, the microcapsules retained 76.31% of the lycopene, while it was almost completely degraded in the free solution (0.48%). Importantly, antioxidant activity was well retained after encapsulation, with DPPH inhibition values of 66.92% (free) and 62.54% (encapsulated). These findings suggested that NADES-based enrichment enabled high lycopene loading, and it would provide effective protection against degradation during processing and storage. Graphical
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BMC Oral Health
·
2026
·
IF 3.8
Tian Jingyu,Chen Lijuan,Yang Yuanyuan,Ding Yu,Meng Jian,Meng Qingfei,Lyons Karl,Mei May Lei
Background To evaluate the effect of the combined use of resin infiltration and the subsequent bioactive glass (BAG) remineralization, with or without 5.25% sodium hypochlorite (NaOCl) pretreatment, on the surface properties of artificial enamel white spot lesions (WSLs) under toothbrushing cycles. Methods One hundred and twelve enamel blocks (4 mm × 4 mm × 2 mm) were cut from the buccal surfaces of the intact human premolars and demineralized to establish artificial enamel WSLs. All enamel blocks were then randomly allocated into four groups: RI/FF, resin infiltration + fluoride-free toothpaste suspension; RI/BAG, resin infiltration + 6% BAG solution; N/RI/FF, 5.25% NaOCl pretreatment + resin infiltration + fluoride-free toothpaste suspension; N/RI/BAG, 5.25% NaOCl pretreatment + resin infiltration + 6% BAG solution. After resin infiltration, one half of the buccal surface was covered as the self-control side, with the other half serving as the experimental side. All specimens were then immersed in the corresponding suspensions and subjected to 55,000 toothbrushing cycles. Surface morphology, elemental analysis, crystal characteristics, surface roughness and surface microhardness of the experimental and control sides were assessed by scanning electron microscopy (SEM) and energy-dispersive spectrometry (EDS) observation, X-ray diffraction (XRD), integrated white-light confocal microscope and microhardness tester, respectively. Results The calcium to phosphate ratios (mean [± standard deviation]) were 2.12 [± 0.18], 2.28 [± 0.12], 2.20 [± 0.14] and 2.32 [± 0.10] for groups RI/FF, RI/BAG, N/RI/FF and N/RI/BAG respectively ( p = 0.038). XRD revealed apatite formation in all groups. The mean surface roughness (Ra and Sq) of the groups were as follows: Ra values (nm): 1104 [± 114], 433 [± 52], 1050 [± 177] and 381 [± 33] respectively ( p < 0.001); Sq values (µm): 7.7 [± 1.0], 4.3 [± 0.3], 7.5 [± 0.4] and 3.9 [± 0.4] respectively ( p < 0.001). The mean surface microhardness (kg/mm 2 ) of the groups were 245 [± 24], 336 [± 29], 336 [± 29] and 355 [± 22] for groups RI/FF, RI/BAG, N/RI/FF and N/RI/BAG respectively ( p < 0.001). Conclusions The combined use of resin infiltration and BAG remineralization seems to be a potential treatment method for enhancing the surface properties of enamel WSLs.
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NATURE MATERIALS
·
2026
·
IF 38
Chen Lixing,Zhang Enkang,Hao Yiqing,Zhu Yinghao,Cui Bingkun,Abernathy Douglas L.,Williams Travis J.,Ikeda Yoichi,Zhang Hao,Liu Feiyang,Wang Wenbin,Wang Qisi,Zhao Jun
High-temperature superconductivity in pressurized and thin-film nickelates has generated intense interest, yet magnetism in their ambient-pressure parent phases remains poorly understood, despite its potentially crucial role in pairing. Progress has been limited by the lack of large single crystals suitable for neutron spectroscopy. Here we overcome this limitation and map the spin order and excitations of single-crystalline La 3 Ni 2 O 7 . We find single-stripe magnetic order with a finite spin gap, anisotropic in-plane excitations and pronounced bilayer modulation revealing antiferromagnetic interlayer coupling. The dispersion is captured by a bilayer Heisenberg-type model with strong interlayer exchange and competing in-plane couplings. Absolute normalization reveals that, although the spin-wave bandwidth is only about 25% of that in cuprates, the local dynamic susceptibility at comparable energies is enhanced, yielding a comparable total fluctuating moment. These results highlight intense mid-energy spin excitations rooted in substantial electronic correlations, establishing a magnetic framework distinct from cuprates and relevant to superconductivity in nickelates.
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JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2025
·Vol. 36
·期 18
·1-11
·
IF 2.8
Liu KunLei,Liu Xumin,Dong Qingchen,Song Lijun,Liang Xinhui,Hu Dianfang,Yu Shihui
Flexible transparent conductive films based on copper nanowires (Cu NWs) are used in a variety of optoelectronic devices. However, their use is limited due to poor stability and adhesion. Herein, highly reliable flexible transparent conductive thin films consisting of SrSnO 3 (STO) and Cu NWs are fabricated using a combination of spin-coating and radio frequency magnetron sputtering techniques. The optical and electrical properties can be modified by changing the number of spin-coating cycle of Cu NWs. The STO thin films can effectively improve optical–electric performance of Cu NWs (before coating STO: 22.1 Ω/sq. at 81.5%, after coating STO: 18.7 Ω/sq. at 82.8%). Furthermore, after 20 tape tests and 2000 bending cycles (with a bending radius of 5.0 mm), the resistance of STO/Cu NW composites remains unchanged, demonstrating exceptional mechanical flexibility and adhesion retention. In addition, the composites show higher stability to high-temperature and high-humidity conditions, oxidation, corrosion, and sulfidation compared with that of Cu NW networks, which is due to the effective covering of STO layer. The combination of these characteristics makes the composite thin films an excellent candidate for substrates of novel flexible optoelectronic devices.
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POLYMER BULLETIN
·
2025
·
IF 4
Xue Baoxia,Feng Jiaxin,Zhang Chunyan,An Zhao,Shao Ziyang,Liu Jing,Niu Mei,Zhang Li
As one of the most common medical dressings, imparting effective antibacterial properties to cotton (COT) fabric is a crucial strategy for preventing bacterial infections. To achieve the continuous release of silver ions, a novel one-step hydrothermal approach was developed by integrating reduced graphene oxide (rGO) and silver nanoparticles (AgNPs) into the fabric, resulting in the in situ growth of rGO/Ag aerogel on the surface of the cotton fabric (rGO/Ag/COT), and forming a new type of structured medical antibacterial dressing. Various analytical methods (including SEM, XRD, plate counting method, flow cytometry, and cytotoxicity) were employed to investigate the structure and properties of the rGO/Ag/COT dressing. The results indicated that, the rGO/Ag aerogel has been embedded within COT fabric via ester-based bonding. The rGO/Ag/COT dressing demonstrated a remarkable antimicrobial efficacy of 99.9% against Escherichia coli and Staphylococcus aureus, owned the ability to continuously release silver ions over a period of several days, and generated a significant amount of reactive oxygen species within the bacterial cells. Additionally, the rGO/Ag/COT dressing displayed the in vitro cytotoxicity of grade 1 and excellent biocompatibility. These implied this strategy provides more ideas for the field of medical dressings through the combination of aerogels and textiles.
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WATER AIR AND SOIL POLLUTION
·
2025
·Vol. 236
·期 10
·1-16
·
IF 3
Li Jiatong,Song Lei,Zhang Hao,Wang Runnan,Zhu Bo,Lou Dawei
In this study, a novel composite flocculant was prepared using sodium silicate, aluminum sulfate, and thiosemicarbazone as experimental raw materials. The successful synthesis of the composite flocculant was verified through Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD), scanning electron microscopy-energy-dispersive X-ray spectroscopy (SEM–EDS), and X-ray photoelectron spectroscopy (XPS). The influence of pH levels in water samples, initial heavy metal ion concentrations, and flocculant dosage on copper ions removal efficiency was systematically studied. The experimental results demonstrate that the removal of Cu 2+ under optimum conditions reached 96.88%. The Langmuir isotherm model predicts a maximum Cu 2+ adsorption capacity reaching 1568.6 mg/g. The adsorption kinetics indicate that the removal of heavy metal ions by this flocculant is dominated by chemisorption. When combined with zeta potential analysis of the flocculation mechanism, charge neutralization emerged as the controlling factor during flocculation, and additional mechanisms such as chelating and precipitation, adsorption and bridging, and sweep flocculation are also involved.
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ENVIRONMENTAL GEOCHEMISTRY AND HEALTH
·
2025
·Vol. 47
·期 7
·1-12
·
IF 3.8
Xue Jinfeng,Ma Yixue,Feng Zhihui,Ji Congbo,Wang Qiao
The atmospheric pollutants polycyclic aromatic hydrocarbon (PAHs) and phenols emitted by the coking industrial area (CIA) have seriously polluted the surrounding soil. Therefore, localized soil screening levels (SSLs) around CIA in Shanxi Province were derived and used for the assessment of soil health risk and groundwater pollution risk. Meanwhile fine-scale spatial probabilistic health risk assessment (PHRA) was conducted based on localized parameters. The results indicated that children under the age of 12 are at a significantly higher carcinogenic exposure risk. The concentration of phenol emitted by CIA into the surrounding soil via atmospheric deposition is higher than those of PAHs, posing a threat to groundwater quality. Groundwater conservation-based SSLs derived from wastewater discharge standards can be used to evaluate the potential pollution of phenols on groundwater. The highest risk for phenol and p-cresol was found to be located within the range of 0.9–1.3 km and 200°–260°, while for PAHs it was within 0.9 km and 90°–200°, neither in line with the prevailing wind direction or areas of high wind speed. BaP, the only substance with an acceptable carcinogenic risk, was primarily concentrated within 0.9 km and 145°–200°. Fine-scale spatial PHRA provides a more accurate understanding of the diverse risk distributions and offer reliable support for precise risk management strategies.
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