Materials
·
2026
·Vol. 19
·期 16
·3555
·
IF 3.7
Yani Cai,Jiaying Liu,Miao Su,Zimin Jin
Bacterial decomposition of sweat produces odors affecting close-fitting garment comfort. This study selected five polyester filament types: coffee carbon polyester filament (CC-PET), bamboo charcoal polyester filament (BC-PET), oyster shell polyester filament (OS-PET), graphene polyester filament (GR-PET), and conventional polyester filament (C-PET). These four yarns exemplify three mainstream deodorizing mechanisms: BC-PET relies on physical adsorption through its porous structure; CC-PET combines adsorption with antibacterial moisture management to suppress odor at the source; GR-PET and OS-PET inhibit bacteria via reactive radicals from oxygen-containing groups and calcium oxide, respectively. Three structures were tested: weft flat knit, 1 × 1 rib, and 1 + 3 false rib. 1 + 1 rib and 1 + 3 false rib differ markedly in elasticity, thickness, and hand. Plain jersey is smooth, soft, and breathable with good extensibility. 1 + 1 rib delivers superior transverse elasticity and dimensional stability. 1 + 3 false rib is loftier and stiffer with enhanced shape retention and thermal insulation. Fifteen specimens were knitted on a seamless circular machine and evaluated using ammonia adsorption rate and acetic acid adsorption rate. Results show that fiber type significantly influences deodorizing performance, with the graphene polyester filament with the 1 + 3 false rib structure achieving the best adsorption for both gases. This provides a theoretical foundation for deodorizing functional fabric development.
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Science Advances
·
2026
·Vol. 12
·期 34
·
IF 13.9
Yuxuan Qiao,Kai Guo,Dongzhao Hao,Na Li,Xiaojiao Shi,Boyao Wang,Ya Liang,Tifeng Jiao,Junjie Li,Zhihui Qin
Polymer materials hold great promise for various applications but face trade-offs among stiffness, toughness, stretchability, and scalable fabrication. Here, we report a strategy that integrates dense side-chain hydrogen-bonding motifs capable of conformational transitions into a highly entangled flexible polymer network through photocuring copolymerization of acrylamide-based and hydroxyl-terminated acrylate monomers, enabling the rapid fabrication of stiff, tough, and stretchable polymers. The densely cross-linked structure restricts chain mobility, while hierarchical hydrogen bonds with partially low rotational energy barriers reversibly dissociate under strain, allowing the extensibility of the entangled network and continuous energy dissipation. The resulting polymers exhibit high Young’s modulus (515.0 ± 100.9 megapascals) and yield strength (57.8 ± 1.8 megapascals) while maintaining exceptional toughness (135.7 ± 10.7 megajoules per cubic meter) and fracture strain (400.1 ± 46.1%) and full strain recovery upon heating. These polymers can be fabricated into complex structures via three-dimensional printing and exhibit shape-memory, impact-resistant, and adhesive properties. This work establishes a generalizable strategy for designing high-performance polymer materials through simple photopolymerization.
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POLYMER ENGINEERING AND SCIENCE
·
2026
·
IF 3.6
Jingwen Hu,Qiang Dou
Nowadays, natural fibers reinforced bio-composites have achieved remarkable development, but their shortcomings in low toughness, high hydrophilicity and poor heat resistance cannot be ignored. Herein, epoxidized soybean oil (ESO) and wood-based cellulose fiber (CF) are used as the plasticizer and reinforcing filler to modify polylactic acid (PLA). In order to boost interfacial adhesion and compatibility of the composites, the silane coupling agent KH 580 (3-mercaptopropyl triethoxysilane) was used to treat CF. The epoxy-carboxyl and epoxy-thiol dual reactions during the melt-blending are utilized to promote the compatibilization of ternary components. The tensile strength of 1 wt% K0-CF composite is 47.25 MPa, which is 1.22 times greater than that of unmodified CF composite; meanwhile, the notched impact strength of 1 wt% K0-CF composite is 6.23 ± 0.38 KJ/m 2 , which is 1.2 times higher than that of pure PLA. The addition of K0-CF enhances the hydrophobicity, interfacial adhesion, melt viscosity and elasticity of the composites. The initial decomposition temperatures and residues of the composites are significantly increased due to excellent thermal stability of CF. Both fibers promote the crystallization of PLA, especially for unmodified CF. Due to excellent mechanical, rheological and thermal properties of PLA/ESO/K0-CF composites, they show potential applications in packaging fields. Highlights Silanization improves the hydrophobicity of CF. Interfacial adhesion of silanized CF composites is enhanced. Cellulose fibers improve the crystallization of PLA. Tensile and rheological properties of silanized CF composites are increased.
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ACS Applied Materials & Interfaces
·
2026
·Vol. 18
·期 35
·48234-48243
·
IF 7.8
Wang Xiang,Zhang Xinyu,Li Le,Cai Qingyun,Liu Yu,Zhen Deshuai
Uranium-contaminated aqueous systems pose severe threats to life and health due to their combined chemical toxicity and radioactivity, particularly through bioaccumulation in the food chain. In this study, a novel near-infrared (NIR)-driven ratiometric fluorescent probe (UCNRs@COF) was fabricated by surface-growing a covalent organic framework (COF) onto upconversion nanorods (UCNRs). The synergistic effect between the COF and UCNRs significantly enhanced the upconverted red emission, enabling the composite to emit dual fluorescence peaks at 480 nm and 650 nm under 980 nm excitation. The intensity ratio ( I 650 / I 480 ) exhibited a linear relationship with UO 2 2+ concentration in the range of 1−45 μM, achieving a detection limit of 66 nM. Mechanistic studies confirmed that UO 2 2+ quenches the fluorescence of UCNRs@COF via a synergistic process of intramolecular charge transfer (ICT) and static quenching (SQE). The developed sensor demonstrates high sensitivity and selectivity for detecting UO 2 2+ in water, urine, and food samples. Furthermore, a portable smartphone-based sensing platform was developed for the visual detection of UO 2 2+ , enabling visible color changes under 980 nm excitation. This method offers accurate and selective sensing of UO 2 2+ , highlighting its potential for practical applications across various fields.
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ACS Sustainable Chemistry & Engineering
·
2026
·
IF 7.6
Jiang Zhanpeng,Zu Shutong,Li Chuanpeng,Jiang Guiquan,Bao Wenhui,Pang Jiuyin
To address the health hazards posed by the BPA epoxy resins traditionally used in carbon fiber reinforced polymers (CFRP), a high-performance and recyclable epoxy resin (EP) was developed by integrating two bio-based components—phenolic compounds from straw tar (ST) and lignin (LI)—with a flexible long-chain curing agent, decenyl succinic anhydride (DA): i) rigid conjugated benzene rings and ii) flexible long-chain fatty acids. Thanks to the combination of rigid structures and flexible chains, the EP achieved a record tensile strength of 104.1 MPa, which far exceeds most reported in the literature. After thermal aging at 100 ° C and UV irradiation for 7 days, the tensile strength retention rate reached 95.8%. Furthermore, a new strategy combining mechanical interlocking and interpenetrating network at the interface was proposed. By synergistically modifying carbon fibers (CF) with ultrasonic cavitation treatment (UCT) and aqueous sizing agents (SA), the composite materials saw a 55.8% increase in tensile strength and a 131.5% increase in shear strength. This material can be applied in drone wings and lightweight automotive structural components. Additionally, the material can be recycled, and the regenerated resin can bond with various substrates. Therefore, this study developed environmentally friendly thermosetting resins and carbon fiber reinforced composites by constructing a bio-based covalent network that balances rigidity and flexibility.
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ACS Applied Materials & Interfaces
·
2026
·Vol. 18
·期 34
·46431-46444
·
IF 7.8
Luo Lian,Jiang Chenenze,Cheng Jiang,Chen Jiasheng,Zhang Liuyang,Wu Lifang,Wang Shenghao,Li Lu
AgBiS 2 has emerged as a promising optoelectronic material due to its broad spectral response and strong light absorption. However, the current use of high-boiling solvents and organic buffers restricts fundamental studies and further performance optimization of AgBiS 2 's intrinsic properties. In this study, we develop an organic buffer-free AgBiS 2 photodetector prepared using a low-temperature ultrasonic spray pyrolysis technique. Our theoretical analysis revealed that oxygen doping alters the optoelectronic characteristics by enhancing the density of states near the Fermi level, leading to consequent severe nonradiative charge carrier recombination. By incorporating excess thiourea while maintaining optimal substrate temperature for enhanced crystallinity, we successfully suppress oxygen defects and consequently improve photodetection performance. The optimized device exhibits a high responsivity of 0.046 A W −1 at 1050 nm, a low noise level (<8.5 × 10 −19 A 2 Hz −1 ), and a fast response time (0.07 μs rise, 0.60 μs decay). Benefiting from the rapid response, the photodetector delivers high-resolution imaging with sharp edge definition. This work eliminates the interference of organic buffer layers to directly reveal how oxygen defect modulation affects the intrinsic optoelectronic properties of AgBiS 2 , offering a scalable pathway for high-performance, solution-processed photodetectors.
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ACS Applied Polymer Materials
·
2026
·
IF 5.2
Zhang Yongfeng,Dong Ting,Xie Kaifang,Lin Jia-Horng,Han Guangting,Chen Que,Chi Shan,Lou Ching-Wen
Photothermal aerogel fibers offer promise for intelligent
thermal management in extreme cold environments, yet their scalable
production is hindered by slow gelation kinetics, poor mechanical
strength, and limited dyeability. Herein, we report an in situ photo-cross-linking
strategy for the fast gelling fabrication of dyeable photothermal
aerogel fibers, using thermoplastic polyurethane (TPU) as the sheath
and methacrylated chitosan (CSMA) aerogel as the core. The photosensitive
CSMA core cross-links within 15 s under UV irradiation, enabling fast
sol–gel transition in a deionized-water coagulation bath within
1 min. The trade-off between dyeability and photothermal performance
is addressed by incorporating cesium tungsten bronze (CWO) nanoparticles
into the TPU sheath layer or in situ polymerizing polypyrrole (PPy)
in the CSMA core layer, whereby light-blue TPU/CWO@CSMA fibers and
near-white TPU@CSMA-PPy fibers were developed. Both fibers exhibit
excellent mechanical properties (tensile strength 3.1–3.3 MPa,
elongation >1600%) and low thermal conductivity (0.047 ± 0.0004
W·m –1 ·K –1 ), achieving
a good synergistic optimization of passive thermal insulation and
active photothermal heating performance. They also display good dyeability
for multicolored fabrication while maintaining strong photothermal
performance. TPU/CWO@CSMA fibers heat to 66.7 ° C under 1-sun
illumination and reach 19.2 ° C at −20 ° C via CWO’s
LSPR effect. TPU@CSMA-PPy fibers show mild, controllable warming (≈16
° C at −7 ° C; 20 ° C at 0 ° C) with slower
cooling. Outdoor tests confirm fabric temperatures remain in a mild
25–34 ° C range without overheating. This work overcomes
the long-standing technical bottleneck of conventional photothermal
aerogel fibers that are typically restricted to single, undyeable
colors, demonstrating promising potential for personal thermal management
and related applications.
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CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
U.T. Uthappa,Jia Cheng Niu,Yan Zhou,Ben Wang
The presence of carcinogenic and persistent micropollutants in the aquatic systems exist at ng–μg·L −1 levels, yet their active, selective, and recoverable removal remains challenging. Micro/nanomotors (MNMs) offer propulsion-enhanced mass transfer mechanisms in pollutants removal. However, widely explored metal–organic framework (MOF-MNMs) suffers from chemical/structural instability, multistep or high-temperature fabrications, and difficult in post-use recovery. Owing to the covalent organic frameworks (COFs) superior intrinsic stability which can be considered as alternative emerging MNMs. However, some of the conventional COF-MNMs are hindered by hydrophobicity, limited adsorption, reliance on peroxide or light fuels, expensive building blocks and face recovery issues (due to powder nature). Here we report a mesoporous COF functionalized with magnetic particles (MP-COF) and ionically crosslinked with alginate biopolymer to obtain fuel-free, steerable, retrievable microbead motors. Under rotating field, they navigate in complex environment achieving ~58 % DOX removal in 15 min and up to 72 % DOX and 86 % CV with modest removal performances in river, sea, rain and tap waters and only a 10–20 % decline in natural organic matter. Further, synergistic π–π, hydrogen bonding, electrostatic and pore-filling interactions underpin adsorption mechanisms and validated with better reusable feature. This magnetically recoverable COF microbead motors platform overcomes several limitations providing a modular route toward an active remediation approach for dual carcinogenic pollutants in aqueous environments.
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PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
·
2025
·
IF 7.8
Lei Hu,Yuxuan Tian,Ning Ding,Hong Liu
In this study, iron-doped molybdenum disulfide (FeMoS 2 ) was hydrothermally synthesized and subsequently coupled with calcined graphitic carbon nitride (g-C 3 N 4 ) to construct a heterojunction . Comprehensive characterization confirmed the stable crystalline structure of the composites and the formation of robust interfacial coupling, which facilitated efficient photogenerated charge separation. Furthermore, UV-Vis diffuse reflectance spectroscopy revealed a significant extension of the visible-light absorption edge compared to pristine FeMoS 2 , with the bandgap narrowing to 1.99 eV. Under optimized conditions (0.6 g/L catalyst dosage, 1.0 mM peroxydisulfate (PDS), pH 6), the FeMoS 2 /g-C 3 N 4 /PDS system achieved 88 % Chlorella vulgaris inactivation in 60 min under visible light, retaining more than 60 % efficiency after five cycles. Mechanistic investigations revealed that superoxide radicals (·O 2 - ) and photogenerated holes (h + ) synergistically inactivated Chlorella via reactive oxygen species (ROS)-induced membrane peroxidation and antioxidant system disruption. Algal physiological assays and microscopic imaging further corroborated that photocatalytically generated ROS compromised cellular membrane integrity and induced chloroplast degradation.
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Journal of Macromolecular Science Part B-Physics
·
2025
·
IF 1.4
Jianxun Yao,Jifan Zhan,Hanwu Liu,Tingting Yan
Auricular reconstruction remains a significant challenge in tissue engineering due to the auricle’s complex anatomy and functional requirements. To address the limitations of autologous cartilage grafts, we developed a composite scaffold consisting of porous ultra-high molecular weight polyethylene (UHMWPE) integrated with a polyvinyl alcohol/chitosan (PVA/CS) double-network hydrogel reinforced with 2 wt% nano-hydroxyapatite (HA). The scaffold was fabricated via powder sintering and physical crosslinking and exhibited high porosity (>41%), a tensile strength of 2.80 MPa, and enhanced water retention. The addition of HA improved both the mechanical strength and antibacterial properties of the composite. The hydrogel component demonstrated stable swelling behavior, hemolysis rates below 5%, and good cytocompatibility. These findings demonstrate that the UHMWPE/PVA-CS/HA composite scaffold, combining the rigidity of a sintered porous framework with the flexibility and bioactivity of a reinforced hydrogel, offers a novel and promising platform for patient-specific auricular reconstruction with balanced mechanical, biological, and antibacterial properties.
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ELECTROPHORESIS
·
2025
·Vol. 46
·期 21
·1576-1587
·
IF 2.5
Tao Huang,Chunsu Liang,Xiaomei Ling
High-performance capillary electrophoresis (CE) has been widely applied in the analysis of organic acids, especially monocarboxylic acids (MAs), but no studies on the CE analysis of dissociated states of MAs have been reported. Here, 15 MAs were analyzed by the newly developed universal interface-induced current detector (IICRD). Two current signal peaks were observed in current electrophoretograms (CR-EGs), whereas only one peak with low sensitivity can be obtained by diode array detector (DAD). The current signal peaks of MAs were accurately identified by adding a charge-neutral marker and calculating by p K a . The qualitative analysis indicated that the two current signal peaks of MAs were charge-neutral forms [MA ± ] and monovalent anions [MA − ] in order. Quantitative analysis showed that CE-IICRD can enhance the sensitivity of MA analytes to 40 µM in limit of detection (LOD), with a linear range from 10 −6 to 10 −2 M. Furthermore, interactions between different dissociated states of MAs and monocarboxylate transporter 1 (MCT1) were studied by combined application of nonimmobilized cell CE (NICCE) method for the first time. The binding kinetic parameters and mole number of MCT1 on cell membranes can also be obtained. Besides, competitive binding experiments proved that BAY-8002 (MCT1-specific inhibitor) and lactic acid shared the same binding site. CE-IICRD provides a new method to reveal the interaction between different dissociated forms of MAs or other biomolecules and essential receptors.
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Small
·
2025
·
IF 12.1
Siying Huang,Tingting Wang,Nuo Sheng,Qiwen Zhang,Xiaolong Xu,Xiaowei Ma
Salmonella Typhimurium—a gut-colonizing pathogen that invades mucosa and triggers colitis—remains clinically challenging due to host barriers limiting oral antibiotic efficacy. To address this issue, an innovative co-crystal nanoparticle platform is developed for targeted therapy. This platform consists of PC@Kana@TA nanoparticles (PC@Kana@TA NPs), synthesized through a simple, cost-effective, and scalable process involving two key steps: 1) self-assembly of tannic acid (TA) with kanamycin (Kana) to form the antimicrobial core Kana@TA nanoparticles (Kana@TA NPs), enhancing drug stability and bactericidal efficacy; and 2) subsequent coating of Kana@TA NPs with mixed pectin–chitosan (PC) to generate the final PC@Kana@TA NPs. This dual-layer coating strategy not only provides gastric acid resistance but also enables pectinase-responsive release in the intestinal tract, thereby significantly improving oral bioavailability compared to conventional formulations. In vitro, Kana@TA NPs exhibit above 70% intracellular Salmonella clearance rate in both the RAW264.7 and Caco-2 cells. Animal experiments revealed that PC@Kana@TA NPs achieved a 5-log reduction in luminal Salmonella, with inflammatory cytokine levels nearly returned to baseline. Notably, the relatively beneficial gut bacteria abundance is 30.53% higher than the Kana group. This strategy presents a versatile strategy for nano-enabled intracellular infection therapies, unlocking new opportunities for drug repurposing and optimization.
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