ENERGY CONVERSION AND MANAGEMENT
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2026
·
IF 10.9
Zhenxiang Wang,Qianyu Zhou,Pengcheng Lin,Ying Chen
Thermoelectric conversion is a promising clean way to generate electricity. To efficiently utilize the large temperature differences naturally found in plateau regions, it is urgent to develop novel and compatible thermoelectric conversion technologies. Here, a self-adaptive thermoelectric conversion strategy is reported for conditions involving day-night large temperature differences enabled by superior thermal management capacity of phase change brine gels (PCBGs) with high latent heat and high thermal conductivity. The segmental adsorption of cold-storage brine by agar and the porous adsorption by expanded graphite (EG) synergistically enable high brine loading in the gel, yielding enthalpy and enthalpy efficiency values of 261.79 J·g −1 and 93.75 %, respectively. PCBGs also demonstrate excellent leakage resistance and cyclic stability. Surface modification of EG with gallic acid produces an evenly distributed composite of phase change brine and EG, yielding a thermal conductivity of up to 5.212 W·m −1 ·K −1 . PCBG is integrated with thermoelectric panel to form a self-adaptive thermoelectric conversion device. PCBGs take advantage of natural nighttime cooling to store cold, thereby providing a large temperature difference of 42°C for thermoelectric devices operating during the day. The output voltage and power reach 0.33 V and 14 mW, respectively. This work effectively mitigates the temperature impact of the plateau climate on thermoelectric devices, offering new insights into green power generation.
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JOURNAL OF MATERIALS SCIENCE
·
2026
·
IF 4.4
Tian Yu Qing,Wu Meng Yao,Lu Jiao Yang,Huang Wei Tao
This study explores the untapped potential of fish scales (FS) as bioinspired platforms for antibacterial applications through a dual approach: (1) systematic characterization of natural scale architectures and (2) development of functional silver nanocomposites (FS-AgNCs). Comprehensive analysis revealed zonal differentiation in grass carp scales, with outer surfaces exhibiting ridge patterns (19–54 μm width) and protrusions, while inner surfaces remained smooth. The covered area (25.78% of surface) showed higher organic content (37.5%) than the exposed zone (30% organic). Leveraging these natural features as nucleation sites, we developed FS-AgNCs via in situ reduction, forming uniformly distributed Ag nanoparticles (248 ± 3 nm and 575 ± 9 nm populations). The nanocomposites demonstrated potent antibacterial activity, achieving 10.4 ± 0.2 mm inhibition zones and 97% killing efficiency against pathogenic bacteria—significantly outperforming bare scales ( P < 0.05). In vivo testing confirmed both biosafety and delayed mortality in Aeromonas hydrophila -challenged fish, with 100% survival maintained over 4 days in treated groups compared to 62.5% mortality within 24 h in controls. This work establishes a sustainable paradigm for developing biocompatible antimicrobial materials by integrating natural biomimetic structures with nanotechnology, offering promising applications in aquaculture and medical coatings.
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FOOD HYDROCOLLOIDS
·
2026
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IF 13.8
Xin Jiang,Qianqian Liang,Zhengpeng Wei,Shiqiang Yin,Jinmei Wang,Yanjun Duan,Wenzheng Shi
The role of polysaccharides toward controlling the release of off-flavors in silver carp surimi gels and the textural characteristics was investigated. Results showed that the addition of sodium octenyl succinate starch (SSOS), acetylated distarch phosphate (ADSP), agar (AG), β-cyclodextrin (CD), gellan gum (GG), and konjac glucomannan (KGM) from 18 polysaccharides reduced the release of fishy smell, which was considered the most unpleasant and predominant odor in surimi gels. Based on the results of HS-GC-IMS and HS-SPME-GC-MS, gels AG, CD, and KGM showed more efficient adsorption capacity for volatile flavor compounds including hexanal, heptanal, nonanal, decanal, and 1-octen-3-ol. Among these, the hardness in gels AG, GG, and KGM increased, while deformation and gel strength decreased, resulting in a reduction in smoothness of the microstructure. The whiteness of the gels SSOS and CD were maintained, but the hardness of SSOS, ADSP, and CD decreased. Correlation studies indicated that the adsorption capacity of polysaccharides on volatile flavor compounds exhibited a negative correlation with hardness, chewiness, and water holding capacity, as well as a ∗ and b ∗ values. This comprehensive research provided new insights for selecting polysaccharides intended for flavor regulation in surimi products.
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BMC MICROBIOLOGY
·
2026
·
IF 5.4
Xu Ben,Wang Ziyue,Chai Jinmei,Wei Yunlin
Staphylococcus aureus ( S. aureus )is an important foodborne pathogen. Host-derived catecholamines released under stress are known to influence bacterial pathogenic processes, including growth, virulence, biofilm formation. However, the role of dopamine in this context remains less well understood, particularly in S. aureus . In this study, we investigated the effects of dopamine on S. aureus ATCC 25,923 using a combination of phenotypic assays and multi-omics analyses. Dopamine was taken up by the bacteria and was associated with enhanced pathogenic phenotypes, including increased proliferation, toxin production, biofilm formation, motility, adhesion, and multidrug resistance. In a mouse infection experiment, dopamine treatment further increased bacterial colonization and organ invasion. Mechanistically, multi-omics analyses indicated that dopamine activates the SaeRS two-component system and is associated with the upregulation of virulence-related factors, adhesion-associated proteins, and membrane lipid synthesis pathways, along with increased activity in key metabolic processes such as the tricarboxylic acid (TCA) cycle and oxidative phosphorylation. Importantly, deletion of saeS markedly attenuated these dopamine-associated effects. Taken together, these findings suggest that dopamine likely influences S. aureus pathogenicity primarily through the SaeRS signaling pathway and provide insight into how host stress signals may contribute to bacterial infection.
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ACS Applied Bio Materials
·
2025
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IF 4.7
Jinrui Hou,Shiji Liu,Xinyue Wu,Shujuan Zhuo,Jinyan Du
To overcome the limitations of traditional quaternary ammonium compounds (QACs) (environmental sensitivity, resistance induction, and poor biocompatibility), we developed antibacterial nitrogen-doped carbon dots (N-CDs) via a green dry-heat synthesis method using 2,3-epoxypropyltrimethylammonium chloride as a precursor. The process integrates carbonization and functionalization in a one-step approach, enabling precise control over the molecular structure to retain active quaternary ammonium groups. The N-CDs exhibit a unique dual bactericidal mechanism: surface positive charges disrupt bacterial membrane integrity via electrostatic interactions, while simultaneously inducing reactive oxygen species (ROS) bursts to trigger oxidative stress, synergistically enhancing bactericidal efficacy. The material demonstrates excellent biocompatibility (hemolysis rate < 5%, cell viability > 80%). In a Staphylococcus aureus (S. aureus)-infected mouse model, the N-CDs significantly accelerated wound closure rates, along with well-organized collagen deposition. Histopathology revealed intact organ structures with no infiltration of inflammation or pathological damage. Systemic biosafety was confirmed with biochemical indicators within normal thresholds. This study overcomes the key barriers of traditional QACs, providing a promising nanomaterial solution for drug-resistant bacterial infections, particularly in wound-healing biomaterials and antibacterial coatings for implantable medical devices.
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Horticulturae
·
2025
·Vol. 11
·期 10
·1203
·
IF 3
Chao Song,Yufeng Zhang,Kang Luo,Muhammad Sajjad,Hongjia Zhang,Yue Xu,Mingdong Ran,Huameng Huang,Youguo Wang,Yun Zheng
Lily (Liliumspp.) is a perennial ornamental plant valued for its striking ornamental value and the edible and medicinal properties of its bulbs. Compared to other lilies, Oriental lilies are characterized by their large flowers and strong fragrance, making them one of the most popular types of lilies on the market. It is important to identify optimal parts of lily bulbs for rapid propagation of tissue culture seedlings. In this study, bulb scales of the Oriental lily ‘Pacific Ocean’ were used to explore the optimal parts for the tissue culture bulb induction. After 30 days of inoculation of lily scales in the induction medium, our results showed that Middle Central regions of the Inner layer scales (MCI) had the highest induction rate of 90.27 % among all regions from all layers of scales. In scales of all layers, the basal parts had the best longitudinal induction effects, followed by the middle and apical parts. Among all layers, the inner layers also had the lowest rates of contaminations. When taking both induction rate and contamination rate into account, MCI also represents the best choice among all compared parts. In summary, our results formed a practical guide for large-scale propagation of Oriental lily using tissue culture seedlings.
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COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2025
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IF 5.4
Jinrui Hou,Shiji Liu,Xinyue Wu,Shujuan Zhuo,Jinyan Du
Wound healing in skin infections is frequently compromised by multi-drug-resistant bacterial colonization, persistent inflammation, and bacterial biofilm formation. To address these issues, we engineered an innovative multifunctional biomaterial (Cur@MIL-101(Cr/Ag)) which integrates potent antibacterial, anti-biofilm, and tissue-regenerative properties. This composite was constructed via a bimetallic synergistic and molecularly confined strategy, where Ag + and Cr 3+ were co-anchored within a terephthalic acid-based framework (MIL-101) through hydrothermal method, followed by the in situ encapsulation of curcumin. In vitro evaluations revealed potent broad-spectrum antibacterial activity against both Staphylococcus aureus ( S. aureus ) and Escherichia coli ( E. coli ), along with significant inhibition of biofilm formation and minimum inhibitory concentrations (MICs) of 8 ppm and 2 ppm, respectively. In vivo, topical application of Cur@MIL-101(Cr/Ag) in a wound-infected mouse model further demonstrated complete bacterial eradication, mitigated inflammatory responses, accelerated wound closure, and promoted tissue regeneration with no observable systemic toxicity within the scope of assessment (i.e., stable body weight and non-pathological organ morphology). The therapeutic efficacy can be attributed to a synergistic triple-therapy mechanism comprising: (i) electrostatic interaction, (ii) ROS-mediated oxidative stress induction, (iii) synergistic interaction of multiple antimicrobial components (Ag⁺, Cr³⁺, and curcumin). This nanoengineered platform presents a clinically translatable strategy for precision therapy of infected wounds, combining antimicrobial robustness, biofilm penetration, and pro-regenerative functions within an integrated therapeutic system.
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JOURNAL OF MEMBRANE SCIENCE
·
2023
·
IF 9.5
Yuyang Yao,Yan Zhang,Yundi Dong,Keqin Ruan,Yifei Shao,Geting Xu,Junbin Liao,Zhenlu Shen,Jiangnan Shen
Biofouling is one of significant obstacles decaying the high separation performance and long-term stability of polymer membranes during the application. To explore the desirable anti-biofouling anion exchange membrane (AEM), in this work, a series of modified AEMs having surface antibacterial functional layers on surface has been prepared by using gentamicin and N-chloramine for electrodialysis (ED). The antibacterial functional layer on surface was constructed via chemical assembly. By using CuSO 4 and H 2 O 2 as the trigger, l -dopa was oxidized on surface of commercial AEM (Fuji type II) to form a carboxyl layer. Thereafter, gentamicin was chemically assembled via the amide condensation reaction . It was chlorinated with diluted NaClO solution to endow it with synergistic antibacterial activity by using gentamicin. Investigation demonstrates that the optimized membrane of P( l -Dopa)@GM-Cl has high antibacterial activity against Staphylococcus aureus (S. aureus) and Escherichia coli (E. coli). Among them, flow cytometry shows that the antibacterial rate of P( l -Dopa)@GM-Cl against E. coli is more than 99%, which is much higher than original membrane (28.4%). P( l -Dopa)@GM-Cl exhibits the enhanced performance in inhibiting biofilm observed by scanning electron microscopy analysis . This work may provide a reference for the construction of anti-biofouling ion exchange membrane.
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BIOCHEMICAL ENGINEERING JOURNAL
·
2023
·
IF 3.9
Zhi-tao Li,Yu-ying Wang,Hang-yan Ji,Yun Jiang,Min-jie Gao,Xiao-bei Zhan,Zhengyu Jin
Nowadays, research on the influence of food nutrition and medicine on the metabolism and diversity of the human gut microbiota is of considerable interest. In this study, a new in-vitro simulation colon reactor (SCR), an important tool for simulating the colon conditions of the human body, was designed to evaluate food function. The key parameters of crush evaluation, peristaltic patterns, anaerobic and parthenogenic aerobic bacterial growth, and fecal microbiota colonization were analyzed and compared with those of static reactor to evaluate colonization and the effectiveness of the new bioreactor . The results prove that SCR has a better ability to break up semisolids, and it could be used to simulate the digestion of semisolid foods. It could also successfully simulate two classical human gut peristaltic patterns, with the intestinal pressure reaching 60–90 (peristaltic frequency, six per min) and 100–150 mmHg (peristaltic frequency, 10 per min). SCR is suitable for fermentation colonization culture of Akkermansia muciniphila , Bifidobacteria , and fecal microbiota. The gut microbiota could be maintained in a healthy and stable growth state throughout the fermentation process. SCR could also increase the productivity of gut microbiota, and it has a good effect on fecal colonization. This study provides a novel and valuable tool for evaluating the structure and function of the gut microbiota.
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Green Energy & Environment
·
2023
·
IF 13.3
Aqiang Chu,Meng Yang,Juanli Chen,Jinmin Zhao,Jing Fang,Zhensheng Yang,Hao Li
Interfacial solar-driven evaporation technology shows great potential in the field of industrial seawater desalination, and the development of efficient and low-cost evaporation materials is key to achieving large-scale applications. Hydrogels are considered to be promising candidates; however, conventional hydrogel-based interfacial solar evaporators have difficulty in simultaneously meeting multiple requirements, including a high evaporation rate, salt resistance, and good mechanical properties. In this study, a Janus sponge-like hydrogel solar evaporator (CPAS) with excellent comprehensive performance was successfully constructed. The introduction of biomass agar (AG) into the polyvinyl alcohol (PVA) hydrogel backbone reduced the enthalpy of water evaporation, optimized the pore structure, and improved the mechanical properties. Meanwhile, by introducing hydrophobic fumed nano-silica aerogel (SA) and a synergistic foaming-crosslinking process, the hydrogel spontaneously formed a Janus structure with a hydrophobic surface and hydrophilic bottom properties. Based on the reduction of the evaporation enthalpy and the modulation of the pore structure, the CPAS evaporation rate reached 3.56 kg m −2 h −1 under one sun illumination. Most importantly, owing to the hydrophobic top surface and 3D-interconnected porous channels, the evaporator could work stably in high concentrations of salt-water (25 wt% NaCl), showing strong salt resistance. Efficient water evaporation, excellent salt resistance, scalable preparation processes, and low-cost raw materials make CPAS extremely promising for practical applications.
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ADVANCED FUNCTIONAL MATERIALS
·
2023
·Vol. 33
·期 21
·2212193
·
IF 19
Haotian Li,Jianhua Zhang,Lei Yang,Huan Cao,Zhen Yang,Peng Yang,Wei Zhang,Yiwen Li,Xianchun Chen,Zhipeng Gu
Bacterial infections represent one of the serious human healthcare threats, and ≈80% of bacterial infections are related to biofilm. So far, there are extensive investigations on the development of robust biomaterials toward the elimination of biofilms and synergistic antibacterial applications. Despite the progress made, concerns have always been raised regarding the sophisticated synthesis and pre-modification of hybrid materials, complicated purification and high-cost work. In this study, a series of robust and integrative nanoparticles (NPs) assembled from two types of natural building blocks (natural polyphenols and tobramycin antibiotics) is successfully fabricated via a one-pot integration approach, which can efficiently destruct the biofilm structure and kill bacteria via enhanced antibiotic infiltration. Notably, natural polyphenols and tobramycin can release from the formed NPs in an on-demand manner in the bacterial-induced environment. The former ones can inhibit quorum sensing within bacteria through competitive combination with autoinducer-2 (AI-2) to remove the existing biofilm, and the latter antibiotics exert high antibacterial activity both in vitro and in vivo. This study provides new inspirations toward robust and synergistic antimicrobial and antibiofilm nanomaterials via the facile integration of naturally occurring molecules.
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INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2023
·
IF 8.2
Boyu Du,Wanjing Li,Hongwei Zhu,Jingyu Xu,Qingyu Wang,Xiling Shou,Xing Wang,Jinghui Zhou
Recently, the application of lignin activation by demethylation to improve reactivity and enrich multiple functions has intensively attracted attention. However, it is still challenge up to now due to the low reactivity and complexity of lignin structure. Here, an effective demethylation way was explored by microwave-assisted method for substantially enhancing the hydroxyl (-OH) content and retaining the structure of lignin. Then, the optimum demethylated lignin was used to removal heavy metal ions and promote wound healing, respectively. In detail, for microwave-assisted demethylated poplar lignin (M-DPOL), the contents of phenolic (Ar-OH) and total hydroxyl (Tot-OH) groups reached the maximum for 60 min at 90 °C in DMF with 7.38 and 9.13 mmol/g, respectively. After demethylation, with this M-DPOL as lignin-based adsorbent, the maximum adsorption capacity (Q max ) for Pb 2+ ions reached 104.16 mg/g. Based on the isotherm, kinetic and thermodynamic models analyses, the chemisorption occurred in monolayer on the surface of M-DPOL, and all adsorption processes were endothermic and spontaneous. Meanwhile, M-DPOL as a wound dressing had excellent antioxidant property, outstanding bactericidal activity and remarkable biocompatibility, suggesting that it did not interfere with cell proliferation. Besides, the wounded rats treated with M-DPOL significantly promoted its formation of re-epithelialization and wound healing of full-thickness skin defects. Overall, microwave-assisted method of demethylated lignin can offer great advantages for heavy metal ions removal and wound care dressing, which facilitates high value application of lignin.
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