APPLIED ENERGY
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2025
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IF 11
Yimeng Du,Shengfan Qin,Pengcheng Lin,Ying Chen
Efficient conversion of salinity energy into green power is an innovative renewable energy technology towards offshore electricity supply and utilization. Improving the conversion efficiency through sustainable strategies, low-cost materials, and facile processes still remains a challenge. In this work, a strategy of constructing a three-dimensional nano-hybrid hydrogel membrane with gradient charge density is proposed. The charged nanoparticles fabricated by post modification of commercial ZnO is dispersed in the hydrogel to ensure high selectivity for ion transport. The asymmetric pore structure in the hydrogel membrane provides high transport capacity for ion transport. The cost of nano-hybrid hydrogel membrane is as low as 0.0122 $ g −1 . After optimizing the effect of different environmental conditions on the membrane performance, a power density of 4.33 W·m −2 and an energy conversion efficiency of 33.6 % are obtained. To overcome the volatility of the power production, a capacitor is utilized to collect and store the electrical energy converted from salinity energy. The charged capacitor is coupled with offshore self-powered electronics and successfully communication and positioning. This work proposes offshore application scenarios for efficient conversion of renewable salinity energy into green power through sustainable technology.
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Journal of Macromolecular Science Part B-Physics
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2025
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IF 1.4
Yaping Huang,Botian Zhu,Xuyang Feng,Hualin Zhang,Haoyou Jiang,Yongfang Qian,Ying Wang
The aim of our research reported in this paper was to develop electrospun (Sc2O3-MgO)/alizarin/polycaprolactone/polyvinylpyrrolidone nanofiber membranes with pH-responsive and antibacterial properties. Scanning electron microscopy results showed that alizarin (ALI) was uniformly distributed in the polycaprolactone/polyvinylpyrrolidone (PCL/PVP) matrix, forming pH-responsive membranes. The X-ray diffractometer (XRD), attenuated total reflection Fourier-transform infrared spectroscopy (ATR-FTIR) and thermal analysis results demonstrated that both ALI and Sc2O3-MgO loadings were effective. Moreover, the addition of 0.16 wt% ALI induced distinct color changes (from pale yellow to purple, pH = 2-12) in the ALI/PCL/PVP nanofiber membranes. This behavior stemmed from the hydroxyl group in ALI forming an intramolecular hydrogen bond with the carbonyl oxygen, enabling proton transfer. Furthermore, the ALI/PCL/PVP membranes containing 2.00 wt% Sc2O3-MgO showed good antibacterial effect against Escherichia coli (E. coli) within 24 h, of what indicating its strong antibacterial activity. In addition, a comprehensive 8-day analysis was conducted on the pH, total volatile basic nitrogen (TVB-N) and total number of live bacteria colonies of the shrimp, as well as the color changes in the film. The experiment proved that the shrimp not covered by the film became highly spoiled on the 4th day, while the shrimp covered with the SAPP-2-3 nanofiber membranes only reached a state of high spoilage on the 6th day. Therefore, the SAPP-2-3 nanofiber membranes can effectively extend the shelf life of the shrimp by 2 days. We believe this study provides a new strategy for the research of multifunctional smart food packaging films.
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Materials Today Nano
·
2025
·
IF 8.2
Yunze Xu,Xiongya Li,Xiaochen Feng,Xiaochang Lu,Jiawei Lin,Dingguo Luo,Ranjith Kumar Kankala,Shibin Wang,Aizheng Chen,Chaoping Fu
The rise of antibiotic resistance and the slow pace of new antibiotic discovery highlight the urgent need for alternative antimicrobial strategies. Antimicrobial photodynamic therapy (aPDT) is a promising candidate, but its efficacy is limited by shallow light penetration and hypoxic microenvironments in deep-seated infections such as abscesses and biofilms. Here, we developed a self-oxygenating nanocomposite (HTCC-MnO 2 -Ce6, HMC) to overcome these barriers. Quaternized chitosan (HTCC) provided intrinsic antibacterial activity and facilitated electrostatic interactions with bacterial membranes. MnO 2 nanoparticles catalyzed endogenous hydrogen peroxide (H 2 O 2 ) into O 2 , thereby alleviating hypoxia and sustaining reactive oxygen species (ROS) generation under light irradiation. Ce6 acted as a photosensitizer to induce oxidative damage, while the HTCC matrix further promoted bacterial membrane disruption. In vitro , HMC displayed excellent cytocompatibility and achieved over 95% bacterial reduction under hypoxic conditions. In a methicillin-resistant Staphylococcus aureus ( MRSA ) abscess model, treatment markedly decreased bacterial burden, attenuated inflammation, and accelerated wound closure within 14 days. Collectively, this self-oxygenating nanoplatform integrates catalytic oxygen generation, membrane-targeted antibacterial activity, and photodynamic therapy, offering a potent non-antibiotic approach for managing multidrug-resistant infections and promoting abscess healing.
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LWT-FOOD SCIENCE AND TECHNOLOGY
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2025
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IF 6.6
Honglin Jiang,Xinwen Wang,Junzhe Shang,Yiwen Bao,Jiaxin Li,Yifan Guo,Dongnan Li,Bin Li,Xu Si,Jinyan Zhu
This study investigated the effect of trehalose coating on the quality and shelf life of Atlantic salmon ( Salmo Salar ) treated by ultra-high pressure (UHP). Key parameters, including microbial safety, texture properties, protein oxidation, and volatile compounds, were analyzed. Results showed that UHP at 200-300 MPa achieved approximately 0.3–2.9 log reductions in microbial counts, while also inducing texture loss and protein oxidation. At 300 MPa, the carbonyl content exceeded 50%. Trehalose coating effectively mitigated texture degradation by restoring hardness to 98% of fresh samples and inhibiting oxidative damage in terms of 13% increased total sulfhydryl groups. Aroma analysis showed that UHP treatment promoted the accumulation of aldehydes derived from lipid oxidation and the beneficial flavor of hexanal and nonanal, while also inhibiting spoilage odor. Trehalose coating further inhibited 2-ethylhexanol and acetic acid, while retaining key flavor ketones of 3-hydroxy-2-butanone. A shelf-life prediction model integrating first-order kinetics and the Arrhenius equation achieved high accuracy (R 2 >0.97), indicating the extended refrigerated shelf life from 3 d to 25 d. This study provides a novel strategy by combining non-thermal treatment and bioprotectants for aquatic product preservation.
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WATER RESEARCH
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2025
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IF 12.4
Dilnur Dilxat,Wei Zhang,Long-Jie Wang,Jing-Jing Deng,Wei-Kang Wang,Juan Xu
Antibacterial resistance in microbial infection poses a serious global threat to both human health and environmental safety. Accurate, sensitive and rapid detection of antibiotic resistant genes (ARGs) is essential for comprehensive evaluation of aquatic environmental risks. However, conventional ARG detection methods strongly rely on nucleic acid amplification based on complete DNA template, failing to capture highly degraded ARG fragments, particularly free ARGs in complex environmental matrices. In this study, we present a novel biolayer interferometry-based multi-channel biosensing platform for ARGs detection that breaks through the framework of nucleic acid amplification. By leveraging a click chemistry-mediated ligation chain reaction and enzyme labeling signal amplification strategy, our platform achieves highly-efficient detection of tetracycline- and sulfonamide-related ARGs ( tetA, tetC, tetG, tetM and sul1 ) at a detection limit of 602 copies/µL, with a response time of less than 30 min. This platform demonstrates excellent accuracy, sensitivity, selectivity, and repeatability using renewable biosensors, enabling direct detection of ARG levels in practical wastewater from farms, hospitals and wastewater treatment plants. The simple “ dip-and-read ” operation allows for real-time monitoring of dynamic changes in ARG levels in aquatic environments. This BLI platform provides a powerful tool for early warning, risk assessment, and improved management of ARGs, offering substantial potential for safeguarding public and ecological health.
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PubMed
高影响因子
Fire-Switzerland
·
2025
·Vol. 8
·期 12
·461
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IF 2.7
Lin Shi,Quanyi Liu,Pei Zhu
The aviation industry needs to develop sustainable, fire-safe cabin interior materials. Although wood is eco-friendly, its high flammability makes it challenging to meet flame retardant standards. Enhancing wood fire safety requires the creation of an environmentally friendly and flame retardant coating. In this study, a new type of intumescent flame retardant (IFR) coating was applied to the wood surface using the layer-by-layer (LBL) technique, with fully bio-based chitosan (CS), agar, and phytic acid (PA) as key components. The coated wood demonstrated improved durability, flame resistance, and thermal stability. Particularly, the Wood-2 sample achieved a vertical burning test (UL-94) V-0 rate and a limiting oxygen index (LOI) of 53.1%, which exceeded most previous reported flame retardant coatings. Cone calorimeter test and infrared thermography analysis confirmed that a thick layer of intumescent char formed when the coating was exposed to heat, effectively hindering heat transfer and oxygen supply. This flame retardant effect is attributed to a synergistic mechanism involving nitrogen/phosphorus (N/P) elements. This study offers an environmentally friendly solution for wood flame retardancy and lays an experimental and theoretical foundation for the development of green aviation interior materials.
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Nature Communications
·
2025
·Vol. 16
·期 1
·1-13
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IF 15.7
Zhao Erzhuo,Zhang Yixin,Zhan Juhong,Xia Guangsen,Yu Gang,Wang Yujue
The recently developed porous solid electrolyte (PSE) reactor for electrosynthesis of hydrogen peroxide (H 2 O 2 ) has attracted significant global interest. However, scaling up the PSE reactor for practical applications poses challenges, particularly due to performance decline in enlarged reactors. Here we systematically investigate how factors such as material selection, assembly parameters, flow field patterns, and operating conditions influence H 2 O 2 electrosynthesis in the PSE reactor. Our findings reveal that the performance decline during reactor scale-up is primarily caused by the uneven flow field in the PSE layer. Based on these insights, we optimize the reactor design and develop a 12-unit modular electrode stack PSE reactor with a total electrode area of 1200 cm 2 . The scaled-up reactor maintains efficient H 2 O 2 electrosynthesis without significant performance decline. It operates stably for over 400 h and can produce up to 2.5 kg pure H 2 O 2 (~83 kg 3% H 2 O 2 solutions) per day with considerably lower energy costs (0.2‒0.8 USD/kg H 2 O 2 ) than the market prices of H 2 O 2 stocks. This work represents a crucial advancement in the development of PSE reactor technology for practical H 2 O 2 electrosynthesis.
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ACS Applied Materials & Interfaces
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2020
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IF 8.758
Ziqing Zhao,Xiaoliang Ma,Rui Chen,Hui Xue,Jiehua Lei,Hui Du,Zexin Zhang,Hong Chen
Because of the excellent film-forming ability of poly(N-isopropylacrylamide) (PNIPAM) microgel and high-efficient bactericidal property of quaternary ammonium salt (QAS), QAS-based PNIPAM (QAS-PNIPAM) microgels are synthesized and employed to modify the surface of a range of commonly used materials including metal, plastic, and elastomer. Bacterial culture is carried out on such QAS-PNIPAM microgel-modified surfaces to examine the viability of the attached bacteria. It is found that the bactericidal efficiency is nearly 100% on the modified surfaces of all the studied materials. We attribute the high-efficient bactericidal performance of QAS-PNIPAM microgel film to the QAS component rather than the topography of the microgel film itself. In addition, the microgel film is robust and shows great integrity even after culture of the bacteria and repeated rinses, and the cell experiment demonstrates that this microgel film is cyto-compatible. Therefore, such a simple, versatile method of preparing antibacterial films paves the way for future bactericidal applications.
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SEPARATION AND PURIFICATION TECHNOLOGY
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2025
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IF 9
Xuehua Shen,Ruirui Zhang,Ruiheng Zhang,Feng Xie,Han Hua,Pengju Wang,Feng Yan,Zewei Quan,Zuotai Zhang
CaO-based sorbents represent a highly viable solution for post-combustion CO 2 capture, with granulation commonly employed to mitigate elutriation in fluidized-bed reactors. Nonetheless, granulation markedly increases the density of these sorbents, thereby impairing their CO 2 uptakes and cyclic stability. In this study, a cost-effective strategy was developed by incorporating various pore-forming agents (agar, urea, straw, and biochar) into CaO-based particles (denoted as CaO+C+A, CaO+C+U, CaO+C+S, and CaO+C+B) to enhance their adsorption performance and durability. The findings revealed that the mechanical strength of uncalcined CaO-based particles remained unaltered by the incorporation of additives, whereas only the CaO+C+S particle maintained acceptable compressive strength (17.1 N) and a low attrition rate (6.6 %) after calcination. Compared with the CaO+C+A particle, the compressive strength of CaO+C+S particle was increased by 87.5 % and the attrition rate was decreased by 22.8 %. Meanwhile, the CaO+C+S particle exhibited the highest CO 2 adsorption performance, achieving 541 mg/g within 10 min, alongside outstanding cyclic stability, maintaining 217 mg/g after 20 cycles. This represents a 17.4 % increase in initial adsorption and a 25.3 % improvement in long-term stability compared to the control particle. These advancements are attributed to straw’s role in facilitating pore formation, refining CaO crystal size, and increasing the proportion of high-melting-phase (CaAl 4 Si 2 O 11 ). The first two factors markedly enhance the diffusion kinetics conditions and thus improving the CO 2 adsorption performance of CaO-based particles. Combined, these three factors enhance resistance to sintering by creating spatial physical barriers and increasing the melting point. This study offers a straightforward and cost-efficient modification approach to improve the CO 2 adsorption performance and durability of CaO-based particles.
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JOURNAL OF MATERIALS SCIENCE
·
2025
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IF 3.9
Lai Jinyin,Guo Zhengqiang,Liu Wangyu
Interface solar evaporators generate fresh water through solar evaporation, presenting significant potential to address global water scarcity. However, current evaporators struggle to balance sustainability, high evaporation rates, and robust mechanical properties, resulting in limited applications. In this study, agar/sodium alginate hydrogels were synthesized using a dual-network strategy, with the internal water state adjusted to optimize their properties. Additionally, the incorporation of nanocellulose significantly enhanced the mechanical properties of the evaporator (improved 65% compressive strength), thereby extending its service life in harsh environments. Moreover, nanocellulose acted as an efficient green dispersant for carbon nanotubes (CNTs), facilitating photothermal conversion and improving solar energy absorption. Notably, we employed a freeze–thaw process to induce lateral aggregation of sodium alginate, resulting in layered water channels that optimized water transport and evaporator performance. This unique design resulted in the development of evaporators that exhibited a high evaporation rate of 3.286 kg·m −2 ·h −1 in a 3.5 wt% NaCl solution, achieving a photothermal conversion efficiency of 98.65% under 1 kW·m −2 light intensity. Moreover, even in a 20 wt% NaCl solution, the evaporation rate remained at 3.02 kg·m⁻ 2 ·h⁻ 1 . This work combined highly hydrophilic natural materials with a specialized water delivery channel design to develop hydrogel-based solar evaporators with high evaporation rates and excellent mechanical properties, offering strong potential for long-term interfacial evaporation applications.
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CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Yuan Yuan,Mengqin Zhang,Guoyang Xie,Jianxiu Wang,Fan Wu,Xinyao Yi
The fabrication of DNA-based nanomaterials with specific functionalities is crucial for advancing tumor therapy. Herein, a novel and facile approach was presented to construct a corona-shaped DNA hybrid nanoplatform, which involved the anchoring of rolling circle amplification (RCA) products on near-infrared (NIR) light-responsive gold nanoflowers (AuNFs). The incorporation of AS1411 aptamer into the RCA product endowed the nanoplatform with the capability of multivalent targeted binding to cancer cells. The nanoplatform exhibited good biocompatibility, notable NIR absorption and robust photothermal conversion, thereby enabling controlled drug release in response to dual NIR/pH stimulation. The developed nanoplatform holds great promise for targeted and responsive cancer treatments.
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Journal of Central South University
·
2025
·
IF 4.4
Su Juan,Kang Fu-yan,Zhao Zi-long,Liu Fa-qian
Preparing multifunctional coatings with both anti-corrosion and anti-biofouling properties is crucial. Copper has been in the spotlight as an effective biocide, especially in the recent past concerning its impact on causing environmental hazards. Reducing the amount used and increasing its efficiency have become the focus of researchers. The hybridization of titanium dioxide nanoparticles (NPs) with copper metal-organic frameworks (MOFs) can significantly improve antimicrobial performance due to its photocatalytic properties. Composites (TiO 2 -Cu-BTC) of titanium dioxide nanoparticles and copper 1,3,5-benzenetricarboxylate acid (Cu-BTC), obtained by three up-sampling methods, namely hydrothermal, mechanical stirring, and in-situ growth, were doped into epoxy resin (TiO 2 -Cu-BTC/EP) to enhance its anticorrosion and antifouling properties. The loaded forms were determined by field emission scanning electron microscopy and confirmed using Fourier infrared spectroscopy and X-ray diffraction spectroscopy. The lethality of the composite coating against Escherichia coli ( E. coli ) increased by 12% after 3 h of exposure to light, and the impedance value increased by 1 × 10 10 Ω. The efficiency of the coating was greatly improved.
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