FOOD CHEMISTRY
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2021
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IF 7.514
Zhiwen Qi,Xingying Xue,Hao Zhou,Hua Yuan,Wenjun Li,Guliang Yang,Pujun Xie,Chengzhang Wang
To valorise olive mill wastewater phenols (OPs) potentially applied in food preservation, a novel stable and regularly spherical OPs-AgNPs ( D avg = 78 nm) were successfully assembled in aqueous solution under the optimized conditions (pH 8.0, 5 mM AgNO 3 , 35C and 30 min). The results of antimicrobial zone diameters indicated that 50 μg/mL of promising OPs-AgNPs presented excellent antimicrobial effects. Especially, the cell wall damages of E. coli ATCC 23,815 were caused when OPs-AgNPs concentration was exceeded its MIC (8.58 μg/mL). Also, a significant down-regulating of the Ca 2+ -ATPase activity in E. coli was revealed, and the intracellular Ca 2+ concentrations were thus decreased from 12.5 to 1.35 µg/mL after a treatment for 3 h. The apoptosis level of E. coli was significantly increased more than the control (55.13% of OPs-AgNPs vs 9.90% of control). In sum, OPs exerts enhanced antimicrobial function via penetrating cell membrane and targeting Ca 2+ -ATPase after chelated with AgNPs.
研究领域:
环境科学
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材料科学
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微生物学
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食品科学
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DOI
PubMed
高影响因子
CEMENT & CONCRETE COMPOSITES
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2022
·
IF 9.93
Yiming Zhou,Mohamed Elchalakani,Peng Du,Chuanzhi Sun,Zuhua Zhang,Hao Wang
Using capsules containing repairing materials to heal concrete cracks has always been a method of great interest to achieve self-healing concrete. Breaking the capsules to release repairing materials is a challenging task. The current methods used to break capsules mainly rely on instant external forces, which implies that slowly developing cracks cannot be healed by capsules. In this paper, we present a novel photocatalytic self-healing mortar to solve this problem. To do so, NaHCO 3 , Ca(OH) 2 and citric acid are inserted into macro capsules. Then, the photocatalyst TiO 2 is added to the insoluble shells of capsules to allow them to be broken by sunlight. After shells of capsules are degraded by sunlight, NaHCO 3 , Ca(OH) 2 and citric acid react in a wet environment to generate repairing materials that fill the cracks. To support the feasibility of the idea, physical and chemical experiments and characterization studies were conducted. Two-millimetre wide mortar cracks can be healed by the substances released from the photocatalytic capsules. The results of water permeability tests show that the two photocatalytic capsules can reach 52% healing efficiency. The characterization results show that the substances filling the cracks are unreacted NaHCO 3 , Ca(OH) 2 , citric acid and insoluble products of calcium salts. Our results suggest that sunlight can be used for the self-healing of mortar.
研究领域:
土木工程
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材料科学
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化学工程
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DOI
高影响因子
MECHANISMS OF AGEING AND DEVELOPMENT
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2024
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IF 5.3
An-Guo Wu,Yuan-Yuan Yong,Chang-Long He,Ya-Ping Li,Xing-Yue Zhou,Lu Yu,Qi Chen,Cai Lan,Jian Liu,Chong-Lin Yu,Da-Lian Qin,Jian-Ming Wu,Xiao-Gang Zhou
Pharmacological strategies to delay aging and combat age-related diseases are increasingly promising. This study explores the anti-aging and therapeutic effects of two novel 18-norspirostane steroidal saponins from Trillium tschonoskii Maxim, namely deoxytrillenoside CA (DTCA) and epitrillenoside CA (ETCA), using Caenorhabditis elegans ( C. elegans ). Both DTCA and ETCA significantly extended the lifespan of wild-type N2 worms and improved various age-related phenotypes, including muscle health, motility, pumping rate, and lipofuscin accumulation. Furthermore, these compounds exhibited notable alleviation of pathology associated with Parkinson's disease (PD) and Huntington's disease (HD), such as the reduction of α-synuclein and poly40 aggregates, improvement in motor deficits, and mitigation of neuronal damage. Meanwhile, DTCA and ETCA improved the lifespan and healthspan of PD- and HD-like C. elegans models. Additionally, DTCA and ETCA enhanced the resilience of C. elegans against heat and oxidative stress challenges. Mechanistic studies elucidated that DTCA and ETCA induced mitophagy and promoted mitochondrial biogenesis in C. elegans , while genetic mutations or RNAi knockdown affecting mitophagy and mitochondrial biogenesis effectively eliminated their capacity to extend lifespan and reduce pathological protein aggregates. Together, these compelling findings highlight the potential of DTCA and ETCA as promising therapeutic interventions for delaying aging and preventing age-related diseases.
研究领域:
衰老
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神经退行性疾病
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药理学
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分子生物学
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遗传学
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DOI
PubMed
高影响因子
ACS Omega
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2024
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IF 3.7
Yuqian Zhou,Yuhe Zhou,Renlong Liu,Guocan Zheng,Changyuan Tao,Benjun Xi
The resource utilization of phosphogypsum (PG) is the key to promote the green development of the phosphorus chemical industry. The natural environment and public safety are significantly threatened by the enormous volume of PG storage. In this study, Ca and S were successfully recovered from the PG via a multistep precipitation in the NaOH–BaCO3 system. The alkali solution can be recycled five times, with a first recovery ratio of about 97.9%, and the decomposition ratio of PG remained above 70% after five cycles. In addition, the recovery ratios of Ca and S in PG are 99.9 and 82.5%, respectively. The product of BaSO4 can be used as a weighting agent for oil and natural gas drilling mud. The BaSO4 can also be used as wave-absorbing materials, and its reflection loss value reaches 97.8% of the analytical purity BaSO4. This work provides a new idea for the efficient recycling of Ca and S in PG with an outstanding application prospect.
研究领域:
化学工程
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环境科学
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DOI
PubMed
高影响因子
RSC Advances
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2024
·Vol. 14
·期 17
·12049-12057
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IF 3.9
Xiaofan Su,Yaqi Lin,Xingyu Hu,Xinzhi Tan,Yao Mai,Minyan Jiang,Ruitao Zhang,Fangjun Huo,Lei Liu,Weidong Tian,Li Xie
A novel sustained chlorine-releasing polydimethylsiloxane/Ca(ClO)2 (PDMS/Ca(ClO)2) material was fabricated by encapsulating Ca(ClO)2 in a PDMS matrix due to its high hydrophobicity and high chemical stability, which showed immediate-responsive and long-lasting antibacterial capabilities in aqueous conditions. Free chlorine could be released from the PDMS/Ca(ClO)2 after immersion in water for 2 min and could also be sustainedly released for 2 weeks, while the released concentration is negatively related to the duration time and positively with the initial Ca(ClO)2 contents. Additionally, Ca(ClO)2 powder as a filler significantly affects the crosslinking and pore size of PDMS. The PDMS/Ca(ClO)2 materials exhibited enduring antibacterial performance against Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus) in both planktonic and multispecies-biofilm status. It is expected that this PDMS/Ca(ClO)2 material and its similar composite would be promising candidates for wide sustainable disinfection applications in biomedical and industrial fields.
研究领域:
材料科学
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生物医学工程
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微生物学
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化学工程
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DOI
PubMed
高影响因子
Journal of Cleaner Production
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2022
·
IF 11.072
Hui Wang,Lusha Jiang,Chongrui Zhang,Kun Wang,Yuchao Li,Hefu Pu,Qiang Zhao
Geosynthetic clay liners (GCLs) consisting of bentonites are used worldwide for the containment of hazardous landfill leachates . However, the swelling of bentonite in aggressive leachates is suppressed, which critically decreases GCLs' barrier performance. This study proposed a polymerization method to prepare calcium-bentonite (CaB)/polymer nanocomposites for high performance GCLs under aggressive conditions. The CaB was successfully intercalated and grafted by salt resistant poly (acrylic acid-2-acryl amido-2-methyl propane sulfonic acid-N, N′-methylene bis(acrylamide)) (abbreviated as P(AA-AMPS-MBA)) networks, leading to layered structures in the resulting nanocomposites. The swell index of P(AA-AMPS-MBA)@CaB in coal combustion product (CCP) leachate ( I = 178 mM) was increased by 2.1 times relative to that of pristine CaB. Consequently, the P(AA-AMPS-MBA)@CaB exhibited excellent barrier property, with hydraulic conductivity to CCP leachate ( K CCP = 6✕10 −12 m/s) being four and one orders of magnitude lower than that of pristine CaB and the US standard for GCLs, respectively. In addition, polymer elution of P(AA-AMPS-MBA)@CaB is only 0.15% that of the control sample prepared by traditional physical mixing method.
研究领域:
环境工程
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材料科学
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DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Mingliang Zhang,Qian Ye,Qianqian Yi,Hanbin Wu,Chao Liu,Bingjie Zhang,Xinyi Li,Bin Yan
Extensive studies have been conducted on advanced oxidation processes (AOPs) for the removal of antibiotics in water environments. However, the separation and recovery of powdered catalysts from water at the end of the reaction remains a great challenge, which hinders the large-scale application of powder photocatalysts. Inspired by the high sustainability, energy efficiency, and cleanliness of photocatalytic technique in antibiotic degradation, we have developed a stable and efficient ultra-thin porous g-C 3 N 4 /β-phase polyvinylidene fluoride (CA-CNS/β-PVDF) membrane for antibiotics removal. Under the optimal reaction conditions, the tetracycline (TC) removal rate of the membrane reached 93.12 % within 2 h due to the synergistic effect of the embedded ultra-thin porous g-C 3 N 4 and β-phase polyvinylidene fluoride (PVDF). The CA-CNS/β-PVDF membrane still maintained excellent photocatalytic performance after five cycles, showing good stability and reusability. The electron paramagnetic resonance (EPR) and free radical quenching analyses suggest that the TC degradation efficiency is enhanced by the synergistic effect of free radical-non-free radical mixed pathways (•O 2 , •OH, h + , 1 O 2 ) and 1 O 2 plays an important role in the degradation process. The excellent photocatalytic antibiotics degradation performances of CA-CNS/β-PVDF membrane were still obtained in actual water samples under natural sunlight, suggesting its great application potentials. The photocatalytic mechanism, possible degradation intermediates, and degradation pathways are elucidated based on the theoretical calculations and experiments. The toxicity analysis by QSAR shows that the CA-CNS/β-PVDF membrane successfully reduces the biological toxicity of three antibiotics (TC, OTC, CIP) during the photocatalysis. In all, our work provides a universal immobilization technique of powdered photocatalysts to improve their wastewater purification efficiencies.
研究领域:
环境科学
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材料科学
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DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2024
·
IF 8.1
Shuzhuang Sun,Bocheng Yu,Yanmei Shen,Yu Liu,Hongman Sun,Xuan Bie,Mengna Wu,Yongqing Xu,Chunfei Wu,Hui Zhou
Integrated CO 2 capture and utilization (ICCU) using “capture-conversion” dual functional materials (DFMs) paves a cost-effective path for restricting CO 2 emissions by eliminating the energy-intensive intermediate processes. The interactions between catalysts and absorbents are believed pivotal in ICCU; however, there is a lack of environment-friendly strategy to fabricate the interaction for industrial applications. Here, we propose a solvent-free mechanochemical approach to promote the interaction by improving the proximity between natural calcium and iron sources. The interaction was systemically investigated and confirmed using XRD, XPS, TEM, TPR, etc. As a result, the mechanochemical approach derived DFM achieved 5.5 mmol g −1 CO 2 capacity, 87 % CO 2 conversion, and 100 % CO selectivity at 650 °C, significantly outperforming the CaO-alone benchmark (CO 2 capacity < 4.5 mmol g −1 , CO 2 conversion < 73 %). Further incorporating MgO would alleviate the sintering and promote the CO 2 capture stability (< 15 % decrease after 20 cycles) by acting as a thermal-stable barrier. Based on in situ XRD, it is further confirmed that Fe-Ca interaction exhibits a dynamic looping mechanism in ICCU. The techno-economic analysis strongly supports the superiority of ICCU catalyzed by naturally sourced DFMs on eliminating the energy and H 2 consumption for CO 2 capture and upgradation. As a result, producing CO via ICCU using mechanochemical derived DFMs exhibits 20 % and 10 % cost decrease compared to the conventional CCU and ICCU using CaO alone scenarios, pointing out the potential of ICCU technology in industrial applications.
研究领域:
化学工程
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环境科学
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DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2026
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IF 9.6
Meihui Li,Mingkai Fu,Yanwei Huang,Tingxuan Ran,Gongao Peng,Qiaowen Yang,Lu Shang,Tierui Zhang
Ca-based thermochemical energy storage (TCES) systems are critical for large-scale green energy utilization, as they bridge the gap between intermittent solar supply and stable energy demand, and stand out for their high energy density and economic advantages. However, their practical application is limited by persistent challenges, including CaO sintering and weak solar absorption. In this study, Fe/Mn co-doped CaCO 3 microspheres were synthesized by co-precipitation method, followed by coating with SiO 2 or TiO 2 shells to construct two core@shell composites, namely CaCO 3 (Fe, Mn)@SiO 2 and CaCO 3 (Fe, Mn)@TiO 2 . The introduction of Fe/Mn doping markedly improved the solar absorption capacity of the CaCO 3 matrix. High temperature cyclic tests (800 °C, 100 calcination/carbonation cycles) further demonstrated that the core@shell structure significantly improved the cyclic stability. Notably, CaCO 3 (Fe, Mn)@TiO 2 maintained 96.2% of its initial energy storage density (1046.1 kJ kg −1 ) after 100 cycles, corresponding to a final density of approximately 1006.1 kJ kg −1 . In contrast, CaCO 3 (Fe, Mn)@SiO 2 retained 752.4 kJ kg −1 (from an initial 1178.7 kJ kg −1 ) after 100 cycles, while uncoated CaCO 3 (Fe, Mn) dropped to 481.1 kJ kg −1 (from an initial 1817.9 kJ kg −1 ). This superiority is attributed to the higher Tammann temperature and stronger Ti O bond dissociation energy of TiO 2 , which endow the TiO 2 shell with robust thermal stability and structural integrity, effectively suppressing particle sintering and pore collapse. The results validate that the core@shell protection strategy provides a viable design paradigm for developing high performance TCES materials, thereby promoting progress in the field of TCES.
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DOI
PubMed
高影响因子
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
·
2025
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IF 3.8
Siyuan Wang,Wei Cai,Dongsheng Shi,Jingwu Zheng,Liang Qiao,Haibo Chen,Naoki Wakiya,Naonori Sakamoto,Takahiko Kawaguchi,Shenglei Che
High-performance SrFe 12 O 19 meets the current demands for lightweight and high-efficiency devices. In this study, Sm‒(Co/Zn/Ca) co-doped spherical SrFe 12 O 19 powders were synthesized via ultrasonic spray pyrolysis. This approach overcomes the limitation of single Sm doping in M-type strontium ferrite, which enhances coercivity but decreases saturation magnetization. The effects of co-doping on the structural and magnetic properties of the material were systematically investigated using X-ray diffraction, Raman spectroscopy, X-ray photoelectron spectroscopy, scanning electron microscopy, Brunauer–Emmett–Teller, Mössbauer spectroscopy, and both room-temperature and low-temperature vibrating sample magnetometry (VSM). Among all the synthesized samples, SrSm 0.20 Zn 0.05 Fe 11.75 O 19 exhibited the highest saturation magnetization ( M s = 78.983 emu/g) while maintaining a coercivity of 7.097 kOe. Compared to SrSm 0.20 Fe 11.80 O 19 , Sm‒Zn co-doping resulted in a 20.12% increase in M s with only a 0.42% reduction in H cj . The results indicate that Zn 2+ preferentially substitutes Fe 3+ at the 4f 2 spin-down sites, reducing the contribution of reverse magnetic moments and thereby enhancing M s . Additionally, as a non-magnetic ion, Zn 2+ does not disrupt Fe‒O‒Fe super-exchange interactions, leading to a minimal reduction in H cj . In contrast, Ca 2+ tends to occupy the 12k and 2a spin-up sites, which reduces spin-up magnetic moments, negatively affecting M s enhancement. Moreover, Co 2+ , being a magnetic ion, disturbs Fe‒O‒Fe super-exchange interactions when incorporated into the SrFe 12 O 19 lattice, leading to a more significant decrease in coercivity. The magneton number ( n B ) calculated from low-temperature VSM confirmed the magnetic moment enhancement effect in the co-doped system, while Mössbauer spectroscopy provided further insights into the hyperfine interactions. This study demonstrates that the Sm‒(Co/Zn/Ca) co-doping strategy effectively balances M s and H cj , significantly improving the magnetic performance of SrFe 12 O 19 . Furthermore, ultrasonic spray pyrolysis proves to be a scalable and cost-effective synthesis method, showing great potential for the large-scale production of high-performance ferrite powders. These findings provide a theoretical foundation for optimizing SrFe 12 O 19 magnetic properties and offer new perspectives for its application in permanent magnet technology.
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高影响因子
Journal of Materials Chemistry B
·
2025
·
IF 5.7
Xingci Liu,Lunhao Zhi,Chong Cheng,Shudong Sun,Changsheng Zhao
Extracorporeal membrane oxygenation (ECMO) is widely used to save patients with severe respiratory failure. Although the mainstream ECMO membrane material poly(4-methyl-1-pentene) (PMP) provides excellent gas permeability, its hydrophobicity leads to thrombosis during clinical application. Recently, polymers of intrinsic microporosity (PIMs), characterized by high fractional free volume, have emerged as promising alternatives due to their superior permeability and convenient chemical modification. In our previous research, two modified PIM-1 (a typical PIM) membranes, amidoxime-functionalized (AO-PIM-1) and carboxyl/amide-functionalized (C-PIM-1), demonstrated enhanced hemocompatibility and gas-exchange performance. Nevertheless, effective CO2 removal remains challenging since CO2 predominantly exists as bicarbonate (HCO3−) ions in blood. Physiologically, carbonic anhydrase (CA) in alveoli could catalyze the conversion of HCO3− to CO2. Inspired by this natural mechanism, in this study, CA was immobilized onto PIM-1 membranes via 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide hydrochloride (EDC)/N-hydroxy succinimide (NHS) coupling. Different grafting conditions including grafting methods and types of PIM-1 substrates were explored. AO-PIM-1 showed optimal enzyme immobilization efficiency (78.35%), of which the immobilized CA retained 89.03% of initial activity after 14 days (versus 39.7% for free CA). ECMO simulation tests confirmed significantly enhanced CO2 removal due to CA catalytic activity. This study provides a promising approach to developing advanced ECMO membranes, addressing current bottlenecks in membrane oxygenator technology, as well as offers a reference for grafting enzymes onto PIMs.
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高影响因子
Journal of Materials Chemistry A
·
2025
·
IF 9.5
Guangyao Zhao,Zhehui Zhao,Sixing Zhang,Jiakang Yao,Na Cheng,Zhen Li,Yu Han,Xiaotao Zhang
Thermochemical energy storage technology based on the Ca(OH)₂/CaO dehydration-hydration reaction is considered as a promising strategy for addressing the transient storage of renewable energy due to high thermal storage density, long cycle characteristics, and safety. However, this technology suffers from drawbacks like agglomeration and sintering at high temperatures, along with poor cycling stability. In this study, the "dynamic" doping of Ca(OH)₂ with C₃N₄ was introduced to optimize the microstructure of particles, which enhanced the thermal performance, elevated conversion rate, and improved cycling stability, without reducing thermal storage density. In-depth characterizations revealed that C₃N₄ transformed Ca(OH)₂ from a flake-like structure to uniform spherical particles, approximately 10 μm in size. In particular, when the doping amount reached 30 wt%, the thermal storage density increased by 11.10% in contrast to Pure Ca(OH)₂, the peak reaction temperature decreased by 13.98°C, and the conversion rate improved to 91.22%. Simultaneously, the material exhibited excellent anti-caking properties, maintaining a thermal storage density of 776.46 J/g after 20 cycles, representing a 27% augmentation compared to the unmodified sample. The microscale effect of the material was retained. In summary, this outcome showcases outstanding comprehensive properties, taking thermochemical energy storage materials further into practical scenarios.
研究领域:
储能技术
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材料科学
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热能工程
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可再生能源
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高影响因子
危险品化学品经营许可证（带存储）