Chemical Engineering Journal最新文献_第7页

Multi-scenario application of non-volatile smart invisible textiles based on copper-ion modulated MoS2 基于铜离子调制MoS2的非易失性智能隐形纺织品的多场景应用

IF 15.1 1区工程技术

Chemical Engineering Journal Pub Date : 2025-10-14 DOI: 10.1016/j.cej.2025.169649

Zizhao Ding, Shenglong Huang, Yiting Zhu, Yilun Chen, Dou Zhang, Zixiang Zhao, Chao Jiang

{"title":"Multi-scenario application of non-volatile smart invisible textiles based on copper-ion modulated MoS2","authors":"Zizhao Ding, Shenglong Huang, Yiting Zhu, Yilun Chen, Dou Zhang, Zixiang Zhao, Chao Jiang","doi":"10.1016/j.cej.2025.169649","DOIUrl":"https://doi.org/10.1016/j.cej.2025.169649","url":null,"abstract":"Flexible lappable memristors are ideal building blocks for designing smart fabric information processing devices, which empowers versatile integration of smart fabrics. The volatile type of memristors have certain limitations in applications and most of them suffer from random formation of conductive channels and lack certain stability. In this paper, such small-area contacts were fabricated on carbon fibers using direct solution deposition, where each interwoven fiber contact can be used as a memristor, and excellent resistive switching performance was obtained by copper atom modification, with switching ratios of up to 106, setup voltages as low as 0.8 V, and hold-up times of more than 104 s. Our systematic study demonstrates that heat treatment temperatures and copper modification can achieve a volatile-to-non-volatile transition. The textile-based memory elements successfully demonstrate synaptic plasticity under electrical stimulation, accurately emulating fundamental neural network operations. The resulting textile-type memristor arrays have high inter-device homogeneity and are capable of high-recognition accuracy image recognition and processing of complex physiological data, such as brainwave signals. Textiles can switch back and forth between wave-transparent and wave-blocking at low frequencies, effectively preventing interference between devices. This dual function of combining neuromorphic computing with filterable electromagnetic protection offers great potential for next-generation smart textile applications.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"5 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145288657","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Regulating nitrogen speciation via temperature/Fe2O3 synergy in freshwater sludge for enhanced peracetic acid (PAA) activation and emerging contaminants removal 通过温度/Fe2O3协同作用调节淡水污泥中氮的形态，以增强过氧乙酸（PAA）的活化和新兴污染物的去除

IF 15.1 1区工程技术

Chemical Engineering Journal Pub Date : 2025-10-14 DOI: 10.1016/j.cej.2025.169652

Shanshan Liu, Danish Muhammad, Zizhe Keng, Peiyuan Chu, Yanqing Wu, Lingling Guo, Maya Zhang, Fei Wang, Jian Xu, Qiteng Zheng, Yunhui Zhang, Jianfeng Ye, Bin Dong, Wenjun Sun

{"title":"Regulating nitrogen speciation via temperature/Fe2O3 synergy in freshwater sludge for enhanced peracetic acid (PAA) activation and emerging contaminants removal","authors":"Shanshan Liu, Danish Muhammad, Zizhe Keng, Peiyuan Chu, Yanqing Wu, Lingling Guo, Maya Zhang, Fei Wang, Jian Xu, Qiteng Zheng, Yunhui Zhang, Jianfeng Ye, Bin Dong, Wenjun Sun","doi":"10.1016/j.cej.2025.169652","DOIUrl":"https://doi.org/10.1016/j.cej.2025.169652","url":null,"abstract":"Rational regulation of transition metal sites and surface N species in catalysts is crucial for boosting peracetic acid (PAA) activation and its application in degrading emerging contaminants in water. This study presents a simple strategy for regulating surface Fe(II/III) sites and N speciation in freshwater sludge-derived biochar (FBC) by modulating pyrolysis temperature. As the temperature increased from 300 °C to 900 °C, Fe(III)-driven conversion of pyridinic N to graphitic N increased significantly (6.07 % to 45.00 %), concurrently elevating Fe(II) content. Both synergistically enhanced PAA activation. FBC700 outperformed FBC900 in PAA activation, attributed to its significantly higher specific surface area (65.93 m2/g vs. 22.03 m2/g) despite comparable graphitic N (43.19 % vs. 45.00 %) and Fe(II) content (15.86 % vs. 16.68 %). The dynamic evolution of reactive oxygen species was elucidated: Initial PAA adsorption on FBC700 and activation by electron-rich functional groups and ≡Fe(II) generated CH3C(O)O• and •OH, attacking PAA. Simultaneously, ≡Fe(III) reduction by PAA produced CH3C(O)OO•, while CH3C(O)O• decomposed into CH3• or reacted to form CH3C(O)OO•, ultimately yielding O2•−. In addition, the direct electron transfer pathway also contributes to BPA degradation by generated PAA* on FBC700 surface. FBC700/PAA shows great practical potential, evidenced by wide adaptability in water bodies and excellent regeneration. This study provides a novel and facile method for regulating active sites for PAA activation and reutilizing bulk freshwater sludge.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"10 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145288660","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

High-performance ferroferric oxide nanocomposite hydrogel for integrated evaporative desalination-crop irrigation bifunctional system toward scalable seawater agriculture 面向规模化海水农业的蒸发脱盐-作物灌溉双功能集成系统的高性能氧化铁纳米复合水凝胶

IF 15.1 1区工程技术

Chemical Engineering Journal Pub Date : 2025-10-14 DOI: 10.1016/j.cej.2025.169656

Zheng Li, Ziyang Qiu, Jingkun Xu, Baoyang Lu

{"title":"High-performance ferroferric oxide nanocomposite hydrogel for integrated evaporative desalination-crop irrigation bifunctional system toward scalable seawater agriculture","authors":"Zheng Li, Ziyang Qiu, Jingkun Xu, Baoyang Lu","doi":"10.1016/j.cej.2025.169656","DOIUrl":"https://doi.org/10.1016/j.cej.2025.169656","url":null,"abstract":"Solar-driven interfacial evaporation offers significant potential for clean water production and sustainable agriculture, particularly in regions facing freshwater scarcity and soil salinization. However, integrating solar desalination with crop irrigation to enable scalable seawater utilization remains a major challenge. Here, we report a bifunctional system that integrates solar evaporative desalination-crop irrigation, enabled by high-performance ferroferric oxide-PVA-chitosan nanocomposite hydrogel (FPCH) evaporators. By constructing a hydrated network rich in hydrophilic groups, the FPCH achieves an extraordinarily high evaporation rate of 5.17 kg m−2 h−1 and energy efficiency of 93.2 % under one-sun illumination, ranking it among the state-of-the-art solar evaporative materials. Notably, the evaporator demonstrates excellent stability and adaptability under complex water conditions, achieving over 99.9 % desalination efficiency across a range of simulated salinities, along with effective removal of organic dyes and heavy metal ions. We further integrated interfacial evaporation, crop irrigation, and solar power into a self-sustained FPCH-based system that delivers 7.5 L m−2 day−1 of freshwater and enhances crop growth, yielding a 12 cm higher average plant height after 15 days. This work presents a scalable pathway for smart seawater-based agricultural systems in coastal and arid regions, providing potential solutions to address food and water security challenges.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"159 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145288700","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ultrasound-accelerated Ti3FeBi5O15 nanosheets amplify reactive oxygen species storms/ferroptosis to trigger antitumor immunotherapy 超声加速Ti3FeBi5O15纳米片放大活性氧风暴/铁下沉触发抗肿瘤免疫治疗

IF 15.1 1区工程技术

Chemical Engineering Journal Pub Date : 2025-10-14 DOI: 10.1016/j.cej.2025.169689

Yan Gong, Qiurong Sun, Gao He, Jiarui Wang, Dequan Xiao, Lile Dong

{"title":"Ultrasound-accelerated Ti3FeBi5O15 nanosheets amplify reactive oxygen species storms/ferroptosis to trigger antitumor immunotherapy","authors":"Yan Gong, Qiurong Sun, Gao He, Jiarui Wang, Dequan Xiao, Lile Dong","doi":"10.1016/j.cej.2025.169689","DOIUrl":"https://doi.org/10.1016/j.cej.2025.169689","url":null,"abstract":"Insufficient intracellular Fe2+ ions availability and hypoxic tumor microenvironment significantly hamper the efficiency of ferroptosis. There is an urgent need for breakthrough research in the development and delivery of ferroptosis inducers and the reprogramming of the immune microenvironment. Herein, Ti3FeBi5O15 (TFBO) piezoelectric nanosheets were engineered to amplify ferroptosis and trigger immunogenic cell death via ultrasound (US) activation. TFBO nanosheets feature a narrow bandgap (2.03 eV) and high piezoelectric coefficient (d33 = 22.1 pm V−1), enabling efficient electron-hole separation under US irradiation. Notably, TFBO nanosheets generate an internal piezoelectric field that promotes Fe3+ to Fe2+ conversion and ·OH generation from H2O under US irradiation, while simultaneously depleting intracellular GSH under US irradiation, leading to lipid peroxidation and GPX4 suppression. Importantly, TFBO nanosheets activate immunogenic cell death (ICD), stimulating antitumor immune responses. Therefore, combined with its high biocompatibility, effective tumor inhibiting performance, and minimal systemic toxicity, TFBO represents a mechanistically distinct and translationally promising ferroptosis amplifier for tumor therapy.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"106 2 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145288695","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

High-efficiency H2O2 production on carbon material derived from pine wood via water oxidation‑oxygen reduction synergistic pathway 松木碳材料水氧化-氧还原协同高效产H2O2

IF 15.1 1区工程技术

Chemical Engineering Journal Pub Date : 2025-10-14 DOI: 10.1016/j.cej.2025.169676

Zhiyoug Tu, Yuxin Wang, Yinglong Lu, Jiating Chen, Mengdi Sun, Yang Peng, Chengyu Duan, Zheshun Ou, Huimin Liu, Guanghui Luo, Zhuofeng Hu

{"title":"High-efficiency H2O2 production on carbon material derived from pine wood via water oxidation‑oxygen reduction synergistic pathway","authors":"Zhiyoug Tu, Yuxin Wang, Yinglong Lu, Jiating Chen, Mengdi Sun, Yang Peng, Chengyu Duan, Zheshun Ou, Huimin Liu, Guanghui Luo, Zhuofeng Hu","doi":"10.1016/j.cej.2025.169676","DOIUrl":"https://doi.org/10.1016/j.cej.2025.169676","url":null,"abstract":"Hydrogen peroxide (H2O2) is an essential chemical with broad applications. However, traditional methods for their production rely strongly on oxygen supply and metal-based material. In this study, we obtain a carbon material from natural pine wood by using hydrothermal method (PHC). It can produce H2O2 in pure water in oxygen-deficiency environment. Under anaerobic conditions, it achieved a cumulative H2O2 concentration of 106.3 μM within 2 h. Isotope tracing experiment studies revealed that H2O2 formation involves the synergistic effect of a two-electron water oxidation pathway and a four-electron water oxidation-two-electron oxygen reduction cascade pathway. It can use only water for H2O2 generation. According to pH dependance experiment, the materials show high activity in a wide pH range, especially in alkaline conditions. Density functional theory (DFT) calculations confirmed that the strong adsorption of OH− on the polyfuran chain under alkaline conditions promotes H2O2 generation. This study offers a novel approach for the high-value utilization of plant fibers and the green synthesis of H2O2.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"71 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145288662","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Multifunctional Mg-MOF-74@Carvacrol/Chitin nanofiber-based nanocomposite film for enhanced food packaging 用于增强食品包装的多功能Mg-MOF-74@Carvacrol/几丁质纳米纤维基纳米复合薄膜

IF 15.1 1区工程技术

Chemical Engineering Journal Pub Date : 2025-10-14 DOI: 10.1016/j.cej.2025.169666

Muhammad Junaid Khan, Muhammad Rehan Islam, Farooq Hafeez, Chunyan He, Jun Zhang, Yunlei Xianyu

{"title":"Multifunctional Mg-MOF-74@Carvacrol/Chitin nanofiber-based nanocomposite film for enhanced food packaging","authors":"Muhammad Junaid Khan, Muhammad Rehan Islam, Farooq Hafeez, Chunyan He, Jun Zhang, Yunlei Xianyu","doi":"10.1016/j.cej.2025.169666","DOIUrl":"https://doi.org/10.1016/j.cej.2025.169666","url":null,"abstract":"The proliferation of pathogenic microorganisms is a significant cause of food spoilage, resulting in substantial economic losses and public health risks. To ensure food safety and extend shelf life, packaging must not only maintain product integrity but also prevent contamination by multidrug-resistant (MDR) pathogens such as Escherichia coli (E. coli), Listeria monocytogenes (Listeria), and Candida albicans (C. albicans). In this study, we developed a multifunctional nanocomposite (Mg-MOF-74@CA/CNF) by integrating magnesium-based metal–organic framework (Mg-MOF-74), carvacrol (CA), and chitin nanofibers (CNF). This nanocomposite was subsequently incorporated into a polyvinyl alcohol (PVA) matrix to fabricate the final film (Mg-MOF-74@CA/CNF/PVA). The resulting film demonstrated excellent antimicrobial activity, achieving up to 98 % inhibition of MDR pathogens through reactive oxygen species (ROS) generation and disruption of microbial membranes. In addition, the film exhibited improved thermal stability, enhanced tensile strength, and superior barrier properties against oxygen and water vapor. Application tests on cherry, cauliflower, and chicken confirmed significant reductions in microbial growth and weight loss, alongside prolonged shelf life while maintaining product quality. These findings highlight Mg-MOF-74@CA/CNF/PVA as a sustainable and effective alternative to conventional packaging materials, offering both food preservation and enhanced safety.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"11 1","pages":"169666"},"PeriodicalIF":15.1,"publicationDate":"2025-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145295319","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Activation of peroxymonosulfate by magnesium−modified biochar for the degradation of imidacloprid: Effectiveness and mechanisms 镁改性生物炭活化过氧单硫酸酯降解吡虫啉的效果和机理

IF 15.1 1区工程技术

Chemical Engineering Journal Pub Date : 2025-10-14 DOI: 10.1016/j.cej.2025.169498

Xianguo Ji, Hao Lin, Yan Zhang, Jianbo Lu, Yanxiang Zhang, Hongwei Sun, Gang Wang, Xiaoyong Yang, Wei Li, Jinming Duan, Yucan Liu

{"title":"Activation of peroxymonosulfate by magnesium−modified biochar for the degradation of imidacloprid: Effectiveness and mechanisms","authors":"Xianguo Ji, Hao Lin, Yan Zhang, Jianbo Lu, Yanxiang Zhang, Hongwei Sun, Gang Wang, Xiaoyong Yang, Wei Li, Jinming Duan, Yucan Liu","doi":"10.1016/j.cej.2025.169498","DOIUrl":"https://doi.org/10.1016/j.cej.2025.169498","url":null,"abstract":"The increasing environmental contamination by imidacloprid (IMI), a widely used neonicotinoid pesticides, has raised significant concern. While peroxymonosulfate (PMS) oxidation has shown great promise for removing such toxic organic compounds due to its high efficiency, the potential secondary pollution caused by toxic metal leaching from transition metal–based catalysts remains a critical challenge. To address this issue, we developed an environmentally friendly magnesium–modified biochar (WHMBC600) using water hyacinth as a carbon source and MgCl2 as a modifier. The synthesized WHMBC600 exhibited excellent physicochemical properties, including substantial pore volume, high specific surface area, and abundant surface hydroxyl groups (Metal–OH), which collectively functioned as active sites for PMS activation. The WHMBC600/PMS system achieved 91.7 % removal of IMI within 60 min, demonstrating remarkable degradation efficiency. Comprehensive characterization, including DFT calculations, in situ Raman spectroscopy, and other analytical techniques revealed that magnesium modification significantly enhanced the electron transfer capacity and PMS adsorption capability of the WHMBC600 catalyst. These finding confirm that the metal–OH groups serve as the key active site for activating PMS to produce reactive oxygen species (ROS). Electron paramagnetic resonance (EPR) analysis combined with quenching experiments identified ·OH, 1O2, and O2•– as the predominant ROS responsible for IMI degradation, with intermediate products clearly determined. This study not only provides an effective strategy for water hyacinth waste utilization but also establishes Mg–modified biochar as a sustainable, environmentally friendly, and efficient catalyst for water and wastewater treatment.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"73 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145283738","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Protein corona-assisted freezing enables ultrafast, programmable DNA loading on AuNPs for tunable probe performance 蛋白质冠辅助冷冻使超快，可编程的DNA加载到aunp上，可调探针性能

IF 15.1 1区工程技术

Chemical Engineering Journal Pub Date : 2025-10-14 DOI: 10.1016/j.cej.2025.169651

Liubing Kong, Guangqing Ren, Shichao Tian, Yuxuan Zhu, Xianyou Sun, Zhuoru Huang, Xinyi Wang, Jianguo Wu, Chiyu Ma, Yanchi Zhang, Ping Wang, Liujing Zhuang, Hao Wan

{"title":"Protein corona-assisted freezing enables ultrafast, programmable DNA loading on AuNPs for tunable probe performance","authors":"Liubing Kong, Guangqing Ren, Shichao Tian, Yuxuan Zhu, Xianyou Sun, Zhuoru Huang, Xinyi Wang, Jianguo Wu, Chiyu Ma, Yanchi Zhang, Ping Wang, Liujing Zhuang, Hao Wan","doi":"10.1016/j.cej.2025.169651","DOIUrl":"https://doi.org/10.1016/j.cej.2025.169651","url":null,"abstract":"Conjugating DNA onto gold nanoparticles (AuNPs) underpins numerous biomedical applications, yet mainstream routes are either slow (salt-aging, >10 h) or demand large DNA excess (freeze-thaw) to prevent aggregation, making loading control difficult. Here, we report a protein corona-assisted freezing process that completes DNA coupling in 20 min and decouples colloidal stability from DNA excess by using adsorbed protein corona as steric/electrostatic stabilizers. Ice crystallization concentrates AuNPs, proteins, DNA and salts into nanoscale pockets, accelerating reaction kinetics, while the protein corona enables precise, input-dependent tuning of DNA density on each particle. The method is compatible with multiple proteins (e.g., HRP, GOx, BSA), yielding multifunctional AuNP-DNA-protein probes. Controlled DNA densities directly modulate performance in a lateral-flow miRNA assay—shifting sensitivity and dynamic range—and in multivalent AuNP-aptamer constructs, where intermediate valency maximizes tumor-cell labeling and capture efficiency. This one-step, scalable platform streamlines probe fabrication and provides an engineering handle over ligand density, paving the way for rapid development of next-generation biosensors and targeted diagnostic agents.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"13 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145288699","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

ZnP-H2Im glass for flame retardant wood: In situ vitrification and synergistic mechanisms 阻燃木材用ZnP-H2Im玻璃：原位玻璃化和协同作用机制

IF 15.1 1区工程技术

Chemical Engineering Journal Pub Date : 2025-10-14 DOI: 10.1016/j.cej.2025.169691

Zhipeng Zhang, Jinrong He, Yuzhang Wu, Jiaming Luo, Wei Qu

{"title":"ZnP-H2Im glass for flame retardant wood: In situ vitrification and synergistic mechanisms","authors":"Zhipeng Zhang, Jinrong He, Yuzhang Wu, Jiaming Luo, Wei Qu","doi":"10.1016/j.cej.2025.169691","DOIUrl":"https://doi.org/10.1016/j.cej.2025.169691","url":null,"abstract":"A novel method for enhancing wood flame retardancy by in situ vitrifying ZnP-H2Im coordination polymer within wood was developed. ZnP-H2Im crystals were synthesized via double impregnation and then converted into a continuous and largely continuous glass film that fully coats the wood fibers using melting-quenching. The vitrification process was confirmed by SEM-EDS, XRD, and DSC. The cell wall thickness of the modified wood (ZIW39 glass) was 58.96 % greater than that of untreated wood. The plastic and glass transition peaks of ZnP-H2Im in the modified wood were detected. The heat treatment caused the ZnP-H₂Im to melt, as evidenced by the disappearance of its characteristic XRD peaks. The molten phase permeated the cell walls, forming a glass film that increased the cell wall thickness. The flame-retardant mechanism involves forming a physical barrier, melting to absorb heat, generating phosphoric acid to catalyze carbonization, and releasing inert gases. As a result, the total heat release in 300 s of ZIW39 glass was reduced by 72.38 % and the limiting oxygen index (LOI) was increased by 69.78 %. Notably, ZIW39 glass exhibited an exceptionally low leaching rate of only 2.65 % after 120 h of immersion. This approach, highlighting in situ vitrification and multiple flame-retardant mechanisms, overcomes limitations of conventional flame retardants. It offers an efficient, eco-friendly strategy for wood modification with industrial potential.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"26 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145288661","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Construction of microRNA-loaded MSC-exosomes scaffold for promoting osteogenesis through immune microenvironment modulation 通过免疫微环境调节，构建装载microrna的msc外泌体支架促进成骨

IF 15.1 1区工程技术

Chemical Engineering Journal Pub Date : 2025-10-14 DOI: 10.1016/j.cej.2025.169665

Chun Liu, Yingying Zhang, Shaoqing Chen, Linxiang Zhang, Pengyin Li, Zhengyi Sun, Hongbin Zhao, Xinye Ni

{"title":"Construction of microRNA-loaded MSC-exosomes scaffold for promoting osteogenesis through immune microenvironment modulation","authors":"Chun Liu, Yingying Zhang, Shaoqing Chen, Linxiang Zhang, Pengyin Li, Zhengyi Sun, Hongbin Zhao, Xinye Ni","doi":"10.1016/j.cej.2025.169665","DOIUrl":"https://doi.org/10.1016/j.cej.2025.169665","url":null,"abstract":"The immune microenvironment plays a critical role in bone healing, with macrophage polarization significantly influencing tissue repair outcomes. This study focused on creating a hydrogel scaffold enriched with exosomes from human adipose-derived mesenchymal stem cells (hAD-MSCs) carrying microRNAs (MSC-Exos+miRNA). The aim was to enhance bone formation by shifting macrophages from the inflammatory M1 phenotype to the regenerative M2 phenotype. This immune modulation was intended to create a supportive environment for the osteogenic differentiation of bone marrow stem cells (BMSCs). The results showed that the MSC-Exos+miRNA scaffold markedly enhanced the expression of osteogenic markers and promoted extracellular matrix mineralization both in vitro and in vivo. Histological analysis indicated the formation of mature bone and collagen deposition in the MSC-Exos+miRNA group. These findings underscore the scaffold's potential as an effective tool for bone tissue engineering (BTE), providing promising approaches for advancing bone repair and regeneration.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"155 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145283759","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0