DESALINATION
·
2024
·
IF 8.3
Lijun Gao,Tianming Gao,Jiuying Feng,Shaohong Mo,Yanbei Guo,Pingping Guo,Shiyun Pan,Yuqing Cheng,Qian Yang
Currently, antiscalants used in cooling water are expected to be environmental-friendly, good scale inhibitive, fluorescence tracing, and industrial-friendly. Aliphatic biodegradable photoluminescent polymers (BPLPs) synthesized from citric acid , aliphatic diols , and various amino acids are fluorescent polymers containing heteroatom six-membered conjugated ring chromophores . Their cross-linked BPLPs have potential for use as implant or device materials, and vivo bioimaging probes. However, so far, no one has found that BPLPs can be used as efficient antiscalants for cooling water. In this work, we demonstrate a facile one-pot microwave-assisted synthesis of BPLPs from cost-effective materials. The products were characterized by Fourier transforms infrared spectroscopy , 1 H and 13 C nuclear magnetic resonance spectroscopy , gel permeation chromatography , and fluorescence spectroscopy . Thus prepared BPLPs can be directly used as a novel type green fluorescent antiscalant without further purification. They have an excellent calcium phosphate inhibition efficiency that can reach 98.6 % with a dosage of 25 mg·L −1 in the static scale inhibition test at 80 °C.
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ENVIRONMENTAL RESEARCH
·
2024
·
IF 7.7
Shenghui Liu,Jintuan Zhang,Anette Theliander,Weibin Chen,Junyong Wu,Leixin Wu
Based on the dye/salts separation efficiency and membrane injury caused by serious pollution of dye/salts wastewater, this study constructed a 2D tight ultrafiltration membrane that could both solve the membrane injury problem and improve the dye/salts separation efficiency, the compatibility of good self-healing performance and penetration performance by 2D material magnesium-aluminum Layered double hydroxide (MgAl-LDH). The self-repairing of physical injury was achieved through the swelling effect of AMPS-PAN, this property was proved by permeate flux, the retention performance of salts in dye/salts solution, the comparison of scanning electron microscope (SEM), and the mechanical strength after physical injury. The healing of chemical injury occured through the reaction of C C and polyethersulfone chain breakage, which was confirmed by X-ray photoelectron spectroscopy (XPS), permeate flux, the retention performance of salts in dye/salts solution, and mechanical property. The high separation efficiency of dye/salts was achieved through 2D material MgAl-LDH, which was proved by separation selectivity ɑ. The compatibility of good self-healing performance and penetration performance was obtained by 2D material MgAl-LDH, which was proved by the penetration and self-healing performance. Morever, the membrane illustrated excellent both permeability and dye/sals separation efficiency, just like the permeate flux, the retention performance of sodium sulfate in methyl blue/sodium sulfate solution, the retention performance of Na 2 SO 4 in methyl blue/Na 2 SO 4 solution, the retention rate of methyl blue were 99.1 L/m 2 h, 12.5%, 7.9%, 97.7%, respectively. The results of pollution index and contact angle also proved that the membrane had anti-pollution performance.
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高影响因子
Horticulturae
·
2024
·Vol. 10
·期 1
·48
·
IF 3.1
Li-Rong Zhou,Hai-Jun Hu,Jie Wang,Yong-Xing Zhu,Xue-Dong Zhu,Jia-Wei Ma,Yi-Qing Liu
To counter the harmful impacts of agricultural chemicals on the environment and human health, there is an increasing demand for safe, eco-friendly, and potent plant-based biopesticides. In this study, we aimed to investigate the antimicrobial effects of ginger essential oil and selected volatile compounds (linalool, eugenol, citral, and cinnamaldehyde [CA]) againstFusarium oxysporumFOX-1. Minimum inhibitory concentrations (MICs) were determined using the mycelium growth inhibition method. The compound CA exhibited the most potent antifungal effect againstF. oxysporumFOX-1 and was selected for further investigation. After treatment with CA at 1/2 MIC or MIC, the spore germination ofF. oxysporumFOX-1 was significantly inhibited at 12 h. Furthermore, microscopic observation revealed that CA treatment resulted in the morphological degradation ofF. oxysporumFOX-1. CA destroyed the cell membrane integrity ofF. oxysporumFOX-1, increasing the relative conductivity and the leakage of intracellular protein, nucleic acids, and malondialdehyde, affecting the integrity and metabolism of the cell membrane. The effects were positively related to CA concentration. Additionally, in vivo experiments with rhizome sections showed that CA significantly reduced the pathogenicity ofF. oxysporumFOX-1. Overall, these findings provide evidence for the potential of using ginger essential oil components as fungicides, offering a basis for future research to develop robust and eco-friendly plant-derived fungicides that serve as a sustainable means to reduce fungus-driven agricultural losses.
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ACS Omega
·
2024
·
IF 3.7
Shuo Wang,Xinyuan Xu,Xiangyu Zhu,Xiao Tan,Bei Xie
Preventing microbial infections and accelerating wound closure are essential in the process of wound healing. In this study, various concentrations of carvacrol (CA) were loaded into polyacrylonitrile/poly(ethylene oxide) (PAN/PEO) nanofiber membranes to develop potential wound dressing materials via an electrospinning technique. The morphology and structure of the PAN/PEO/CA nanofiber membrane were analyzed by scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FTIR), respectively. Subsequently, antimicrobial performance testing showed that the PAN/PEO/CA nanofiber membrane exhibited antimicrobial activity in a concentration-dependent manner. Moreover, SEM and transmission electron microscopy revealed that the number of Staphylococcus aureus decreased significantly and the microstructure of the biofilm was seriously damaged. Next, compared with the control and PAN/PEO groups, the PAN/PEO/5% CA group in a full-thickness skin infection model not only exhibited reduced wound exudate on day 2 after infection but also displayed a greater ability to achieve complete skin regeneration, with faster wound healing. Finally, the Kyoto Encyclopedia of Genes and Genomes pathway analysis revealed that the downregulated differentially expressed genes between PAN/PEO- and PAN/PEO/5% CA-treated S. aureus were enriched in the two-component system and S. aureus infection. In conclusion, the antimicrobial materials of PAN/PEO/CA inhibited microbial growth and promoted wound healing with potential applications in the clinical management of wounds.
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Advanced Optical Materials
·
2024
·
IF 8
Yixuan Xu,Zihan Cheng,Henggang Wang,Jun Jiang,Zuxu Zhou,Linger Feng,Xiaomeng Wang,Hengwei Lin,Kai Jiang
Luminescent materials with time-resolved dynamic discoloring afterglow (TDDA) hold significant potential for applications in anti-counterfeiting and data encryption. However, the afterglows coming from organic systems are usually unidentifiable due to their shorter durations (less than 10 s). Achievement of long-lasting and visually discernible TDDA remains highly desirable but challenging. In this work, the TDDA duration is successfully extended from less than 10 s to minutes by engineering the luminescent centers of carbon dots (CDs) and introducing deep trap-states in a composite of CDs and carbon nitrides (CNs) (named Y-CDs@CN). It is confirmed that the regulation of luminescent centers in CDs containing both C═N and C═O bonds is responsible for the color changes during TDDA from yellow to green. Moreover, the generation of deep trap states is found to be significant for prolonging the afterglow duration to minutes level through converting room temperature phosphorescence into long persistent luminescence, thus making the entire dynamic discoloring process being easily recognized to naked eyes. Furthermore, the afterglow of Y-CDs@CN can also be excited by blue light and even using white light of a cell phone. To harness these characteristics, potential applications of Y-CDs@CN for portable anti-counterfeiting and multidimensional information encryption are primarily investigated.
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ACS Nano
·
2024
·
IF 15.8
Zhixiang Mu,Tianxi Shen,Hui Deng,Bairui Zeng,Chen Huang,Zhengjin Mao,Yuyu Xie,Yu Pei,Liting Guo,Rongdang Hu,Limin Chen,Yunlong Zhou
Modulating the properties of biomaterials in terms of the host immune response is critical for tissue repair and regeneration. However, it is unclear how the preference for the cellular microenvironment manipulates the chiral immune responses under physiological or pathological conditions. Here, we reported that in vivo and in vitro oligopeptide immunosuppressive modulation was achieved by manipulation of macrophage polarization using chiral tetrapeptide (Ac-FFFK-OH, marked as FFFK) supramolecular polymers. The results suggested that chiral FFFK nanofibers can serve as a defense mechanism in the restoration of tissue homeostasis by upregulating macrophage M2 polarization via the Src-STAT6 axis. More importantly, transiently acting STAT6, insufficient to induce a sustained polarization program, then passes the baton to EGR2, thereby continuously maintaining the M2 polarization program. It is worth noting that the L-chirality exhibits a more potent effect in inducing macrophage M2 polarization than does the D-chirality, leading to enhanced tissue reconstruction. These findings elucidate the crucial molecular signals that mediate chirality-dependent supramolecular immunosuppression in damaged tissues while also providing an effective chiral supramolecular strategy for regulating macrophage M2 polarization and promoting tissue injury repair based on the self-assembling chiral peptide design.
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COMPOSITES SCIENCE AND TECHNOLOGY
·
2025
·
IF 9.8
Ying Wang,Jiayu Liu,Xinyan Fan,Yunjie Ju,Zhenke Wei,Xiangyu Tang,Yonggui Wang,Zefang Xiao,Yanjun Xie
Improving photosynthesis and light capture using bio-based light-conversion films increases crop yield and paves a sustainable way to meet the growing global food demand. In this study, red-emissive carbon dots (RCDs) and blue-emissive CDs (BCDs) were trapped in biopolymers to develop a novel dual-excitation dual-emission light-conversion film (BRLCFs) with sandwich structure for efficient solar spectral conversion and promote photosynthetic efficiency of greenhouse plants. The middle layer of the film comprises polyvinyl alcohol (PVA), RCDs, and ascorbic acid (AA), which convert ultraviolet and green light into red light. The strong hydrogen bonding between the RCDs and PVA, including the antioxidant properties of AA, ensured excellent stability of the red light emission of the film. The edge layers, which composed of cellulose acetate and BCDs, converted ultraviolet light into blue light. This composition allowed the film to maintain exceptional photostability and morphological stability, even in high-humidity environments. In agricultural cultivation, BRLCFs significantly enhanced lettuce growth parameters, with a notable 21.89 % increase in fresh weight and 19.54 % increase in dry weight, highlighting the potential of BRLCFs to boost crop yield in controlled environments.
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ACS Applied Materials & Interfaces
·
2024
·
IF 8.3
Pengcheng Cui,Jiadong Chen,Kewen Fu,Jie Deng,Taolin Sun,Kun Chen,Panchao Yin
Impact-protective materials are gaining importance because of the widespread occurrence of impact damage. Hydrogels have emerged as promising candidates owing to their lightweight and flexible nature. However, achieving soft impact-resistant hydrogels with exceptional stiffness, strength, and toughness remains a challenge. Inspired by the Bouligand structure found in the smasher dactyl club of stomatopods, we propose a straightforward multiscale hierarchical structural design strategy. This strategy integrates self-assembly and salting-out techniques to enhance the impact resistance of soft hydrogels. Rigid cellulose nanocrystals (CNCs) self-assemble into Bouligand-like structures within soft poly(vinyl alcohol) (PVA) matrix via supramolecular interactions. This rational structural design combines the CNC Bouligand structure with a cross-linked network of soft PVA crystalline domains, resulting in a composite hydrogel with impressive mechanical properties: high tensile fracture strength (30.2 MPa), elastic modulus (62.7 MPa), and fracture energy (75.6 kJ m–2), surpassing those of other tough hydrogels. Moreover, the multiscale hierarchical structure facilitates various energy dissipation mechanisms, including crack twisting, tortuous crack paths, and PVA chain orientation, resulting in notable force attenuation (80.4%) in the composite hydrogel. This biomimetic design strategy opens new avenues for developing soft and lightweight impact-resistant materials.
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Food Bioscience
·
2024
·
IF 4.8
Xiaoqiang Zou,Mudassar Hussain,Imad Khan,Yanxi Wang,Bangzhi Jiang,Lei Zheng,Yuechao Pan,Jijie Hu,Azqa Ashraf
Medium- and long-chain structured lipids (MLSLs) rich in docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA) were synthesized by acidolysis of fish oil (Omax 1812, a mixture of sardine and anchovy oils) with caprylic acid (CA) using a lipase bio-imprinted with fatty acids as a catalyst. A bio-imprinted lipase for the acidolysis reaction was first prepared under optimal conditions, and its activity was 1.43 times higher than that of the non-bioimprinted. The bio-imprinted lipase was used as a catalyst to produce such MLSLs, and the reaction conditions were optimized. Under the optimal conditions, equilibrium was achieved in 8 h, and the total and the sn -1, 3 CA contents in the obtained product were 28.72% and 42.26%. Additionally, the total and the sn -2 DHA contents were 14.23% and 21.10%, respectively, and the total and the sn -2 EPA contents were 16.43% and 10.14%, respectively. These obtained MLSLs, rich in sn -1, 3 CA, and sn -2 DHA, EPA can deliver significant health benefits.
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ADVANCED MATERIALS
·
2025
·
IF 26.8
Jie Tang,Haotian Qu,Chongbo Sun,Xiao Xiao,Haocheng Ji,Junxiong Wang,Junfeng Li,Guanjun Ji,Xuan Zhang,Hui-Ming Cheng,Guangmin Zhou
Lithiation reactions driven by chemical potential offer a promising avenue for directly regenerating degraded lithium iron phosphate (LFP). However, the choice of solution system significantly influences the lithium supplementation where improper selection may result in poor lithium recovery or extremely slow kinetics. Herein, it is identified that the most critical factor affecting solution repair effectiveness is the redox potential of the anions in the solution, which determines whether spent LFP (SLFP) can undergo spontaneous lithiation under ambient conditions. Then, machine learning (ML) is used for prediction and screening of huge potential solution systems, and finally a general strategy is proposed: creating a low redox potential solution system that incorporates anions with either low redox potential or moderate redox potential at high concentrations. As a demonstration, the regenerated LFP by ascorbic acid and LiOH solution systems exhibits a high discharge capacity of 144 mAh g −1 at 1 C, retaining 96% of its capacity after 500 cycles at 5 C. This work establishes an important criteria for designing solution systems to restore degraded LFP, marking a significant advancement in the direct regeneration of cathode materials from spent lithium-ion batteries (LIBs).
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Journal of Environmental Chemical Engineering
·
2024
·
IF 7.4
Chen Chen,Shaoyuan Bai,Pengyu Liu,Dandan Xu,Xiaojie Sun,Mei Wang,Yawen Yuan
The application of electrocatalytic degradation technology in the treatment of pharmaceuticals and personal care products (PPCPs) has attracted widespread attention currently. Through structure and properties characterization of catalysts we found that more uniformly distributed metal particles and excellent thermal stability were obtained by modification with poly(1-vinyl-3-butylimidazole hexafluorophosphate) ([(PV)BIM]PF 6 ) on graphene to anchor the metal CoNi nanoparticles (CoNi/PILs-rGO). For assessing its application potential, the CoNi/PILs-rGO cathode in combination with Ti/RuO 2 /IrO 2 anode to set up an experimental reaction system for the electrocatalytic degradation of clofibric acid (CA) simulated wastewater. Reactor settings for experimentation are optimized, and intermediates, alterations in toxicity during degradation, and active species are detected. The results of the single-factor experiment showed that the average removal rate of CA by the cathodic compartment was 97.18 % when the conditions were optimal. Two possible pathways of degradation are deduced from the CA intermediates, one is the C-Cl bond breaking in electrochemical reduction, and the other is that the C-O bond is directly broken by anodic reactive oxygen. Toxicity tests have shown that the anode produces some by-products that are more hazardous than the original chemical, while the cathode produces a dechlorination process that is ultimately more detoxifying.
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ACS Applied Materials & Interfaces
·
2025
·
IF 8.2
Wen-Jin Hu,Xin Li,Jian-Ping Xiang,De-Xiang Sun,Nan Zhang,Yong Wang,Jing-Hui Yang
Although aramid nanofibers (ANFs) consist of rigid poly(terephthalic acid terephthalamide) molecular chains with good high temperature resistance for aerospace and other high-temperature applications, it has poor electrical insulation properties due to internal defects. Currently, the main method to improve the electrical insulation properties is to introduce wide band gap two-dimensional (2D) fillers, such as Boron Nitride Nanosheets (BNNS) or mica flakes, but this inevitably affects the mechanical properties and optical transparency. Cellulose acetate (CA) is originated from acetylation of natural cellulose, and the higher number of hydrogen bond donors on the molecular chain enables it to interbond with many polymers. In this study, CA was introduced into ANFs films, and the all-organic aramid films were prepared by blade coating method. A high dielectric constant of 14.4 as well as a low dielectric loss (0.062 @103 Hz) were obtained, and the dielectric loss of all films was lower than that of the ANFs films, which is attributed to the introduction of interfacial hydrogen bonds that suppressed the loss. In addition, the introduction of interfacial hydrogen bonds introduced deep traps inside the all-organic aramid films, which further improved in breakdown strength from 216.11 MV/m for ANFs film to 367.8 MV/m for the 5 CA film. The prepared all-organic aramid films also showed excellent flexibility as well as high temperature resistance, and the electrical insulation performance under different extreme environments was still higher than that of the ANFs films. This study provides a method for the preparation of high temperature resistant and electrically insulating films, which have great potential applications in fields relating to high temperature circumstance.
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