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Flame-retardant and antibacterial flexible polyurethane foams with high resilience based on a P/N/Si-containing system

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Journal of Materials Science & Technology 2024年第15期182卷 141-151页

作者： Ping Li Hui Liu ying-jun xu De-Yi Wang Yun Liu Ping Zhu College of Textiles&Clothing Institute of Functional Textiles and Advanced MaterialsNational Engineering Research Center for Advanced Fire-Safety Materials D&A(Shandong)Qingdao Key Laboratory of Flame Retardant Textile MaterialsState Key Laboratory of Bio-Fibers and Eco-TextilesQingdao UniversityQingdao 266071China IMDEA Materials Institute C/Eric Kandel 2GetafeMadrid 28906Spain

In this work,the coatings used phosphorylated chitosan(PCS)and GP-108 via the dip-coating method presented exceptional flame retardancy and antibacterial properties for flexible polyurethane foams(FPUF).PCS/GP@FPUF with 35%weight gain of PCS/GP can receive the UL-94 V-0 rating and obtain a 32%reduction of peak heat release rate value compared with that of FPUF,and it remains relatively dense char *** effective heat of combustion of PCS/GP@FPUF is 21.6 kJ/g,presenting a 22%decrease compared with that of ***,the PCS/GP coatings mainly have the condensed-phase flame-retardant mechanism associated with the analysis of char residues and the volatile products released through the thermal degradation process.X-ray photoelectron spectroscopy results confirm that the char residues of PCS/GP@FPUF consist of highly-graphitized carbon and it formed P-N-Si synergistic char *** addition,the antibacterial rates of PCS/GP@FPUF against Escherichia coli(***)and Staphylococcus aureus(***)are 99.99%,and the incorporation of GP-108 does not influence the antibacterial proper-ties of ***,the resiliency of FPUFs has been slightly ***,the flame-retardant and antibacterial FPUFs with wonderful resiliency are hopeful to be applied as filler materials for vehicle seats and obtain longer service lives.

关键词： Environmental organic-inorganic coatings FPUF Flame retardancy Antibacterial properties

Carbon Fibers Decorated by Polyelectrolyte Complexes toward Their Epoxy Resin Composites with High Fire Safety

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Chinese Journal of Polymer Science 2018年第12期36卷 1375-1384页

作者： Xiao-Hui Shi Li Chen Bo-Wen Liu Jia-Wei Long ying-jun xu Yu-Zhong Wang School of Chemical Engineering National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan) State Key Laboratory of Polymer Materials Engineering Sichuan University Chengdu 610064 China

The achievement of both robust fire-safety and mechanical properties is of vital requirement for carbon fiber （CF） composites. To this end, a facile interracial strategy for fabricating flame-retardant carbon fibers decorated by bio-based polyelectrolyte complexes （PEC） consisting of chitosan （CH） and ammonium polyphosphate （APP） was developed, and its corresponding fire-retarded epoxy resin composites （EP/（PEC@CF）） without any other additional flame retardants were prepared. The decorated CFs were characterized by SEM- EDX, XPS and XRD, indicating that the flame-retardant PEC coating was successfully constructed on the surface of CF. Thanks to the nitrogen- and phosphorous-containing PEC, the resulting composites exhibited excellent flame retardancy as the limiting oxygen index （LOI） increased from 31.0% of EP/CF to 40.5% and UL-94 V-0 rating was achieved with only 8.1 wt% PEC. EP/（PEC8.1@CF） also performed well in cone calorimetry with the decrease of peak-heat release rate （PHRR） and smoke production rate （SPR） by 50.0% and 30.4%, respectively, and the value of fire growth rate （FIGRA） was also reduced to 3.41 kW·m-2- s-1 from 4.84 kW· m-2· s-1, suggesting a considerably enhanced fire safety. Furthermore, SEM images of the burning residues revealed that the PEC coating exhibited the dominant flame-retardant activity in condensed phase via the formation of compact phosphorus-rich char. In addition, the impact strength of the composite was improved, together with no obvious deterioration of flexural properties and glass transition temperature. Taking advantage of the features, the PEC-decorated carbon fibers and the relevant composites fabricated by the cost-effective and facile strategy would bring more chances for widespread applications.

关键词： Fire safety Carbon fiber composites Epoxy resin Polyelectrolyte complexes

Physical exercise reverses immuno-cold tumor microenvironment via inhibiting SQLE in non-small cell lung cancer

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Military Medical Research 2024年第4期11卷 616-619页

作者： Zhi-Wen Luo Ya-ying Sun Wei Xia jun-ying xu Dong-Jing Xie Chun-Meng Jiao Ji-Ze Dong Hui Chen Ren-Wen Wan Shi-Yi Chen Jie Mei Wen-jun Mao Department of Sports Medicine Huashan Hospital Affiliated to Fudan UniversityShanghai 200040China Department of Sports Medicine Shanghai General HospitalShanghai 200080China Department of Critical Care Medicine the Affiliated Wuxi People’s Hospital of Nanjing Medical UniversityWuxi 214023JiangsuChina Department of Oncology the Affiliated Wuxi People’s Hospital of Nanjing Medical UniversityWuxi 214023JiangsuChina Guangdong Pharmaceutical University Guangzhou 510006China Institute of Acupuncture Research Institutes of Integrative MedicineFudan UniversityShanghai 200433China Department of Cardiothoracic Surgery the Affiliated Wuxi People’s Hospital of Nanjing Medical UniversityWuxi 214023JiangsuChina

Dear Editor,Physical exercise has been shown to be associated with reduced cancer incidence and cancer-associated mortality[1,2],but the underlying mechanisms are *** regulation has emerged as one of the most prominent mechanisms explaining the effects of exercise on cancer[1,2].Physical exercise primarily lowers blood cholesterol and triglycerides,and protects against cardiovascular diseases[3].However,whether physical exercise can modulate cholesterol metabolism in tumor cells is currently unknown.

关键词： Physical exercise Non-small cell lung cancer(NSCLC) Squalene epoxidase(SQLE) Tumor immune microenvironment(TIME)

Intracerebroventricular Injection of Tumor Necrosis Factor-alpha Monoclonal Antibody(Infliximab) Reduce Cerebral Amyloid Plaques in Aged APP/PS1 Double Transgenic Mouse

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Intracerebroventricular Injection of Tumor Necrosis Factor-a...

A versatile method for preparing FePO4 as a promising electrode material for rechargeable lithium batteries

2009全国抗衰老与老年痴呆学术会议

作者： Jian-quan Shi jun xu ying-dong Zhang jun Chen Qiao-quan Zhang 南京医科大学南京脑科医院神经科

Objective To investigate whether tumor necrosis factor-alpha monoclonal antibody(Infliximab) can directly reduce amyloid plaques by intracerebroventricular(ICV) injection in ***,we try to explore the time-course effec... 详细信息

关键词： tumor necrosis factor-alpha Alzheimer’s Disease Infliximab senile plaques APP/PS1 double transgenic mouse

来源： cnki会议评论

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兰州大学学报（自然科学版） 2007年第4期43卷 144-146页

作者： LU ying-jun xu Yan-bin YANG Ru-dong YANG Zheng-yin YAN Lan College of Chemistry and Chemical Engineering Lanzhou University Lanzhou 730000 China

Recently, iron-containing compounds have tended to be attractive candidates as active cathode materials. Among them, olivine-structured LiFePO_4 is one of the most interesting materials due to its low cost, non-toxicity, high specific capability and good cycle performance. For LiFePO_4, its theoretical capacity is 170 （mA·h）/g and the charge/discharge voltage is about 3.4 V versus Li/Li~＋.

关键词：电极材料偏磷酸铁锂离子电池阴极可再充电性能

以病例为基础联合以问题为基础的教学模式在眼科研究生教育中的应用

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眼科 2016年第5期25卷 355-356页

作者：王军曹迎雪徐亮首都医科大学附属北京同仁医院北京同仁眼科中心眼科学与视觉科学北京市重点实验室北京市眼科研究所 100730

以病例为基础的研究(case based study,CBS)联合以问题为基础的研究(problem based study,PBL)之教学模式是一种以临床病例为中心,以分组讨论为重点,以培养研究生临床思维能力为目的的现代教学方法。通过知识点讲解、病例展现、分组讨... 详细信息

以病例为基础的研究(case based study,CBS)联合以问题为基础的研究(problem based study,PBL)之教学模式是一种以临床病例为中心,以分组讨论为重点,以培养研究生临床思维能力为目的的现代教学方法。通过知识点讲解、病例展现、分组讨论以及分析和总结等过程,观察研究生在面对临床真实病例时的反应、思考和处理,发现其在临床思维上的不足和偏差,然后适时地加以引导,使研究生对书本知识的理解更深入、应用更灵活,对原则性问题判断更明确,并不断积累临床经验。

关键词：以病例为基础的研究以问题为基础的研究研究生教学

Serum brain natriuretic peptide in children with Kawasaki disease

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World Journal of Emergency Medicine 2010年第2期1卷 114-117页

作者： Yu-ping Sun Chao-ping Wei Wen-di Wang Xing-chang Zheng Ye-jun Wang Shao-chun Ma ying-jun xu Qingdao Children＇s Hospital Qingdao 266011 China

BACKGROUND： Kawasaki disease （KD） is a common cause of acquired heart disease in children. Recent studies have focused on the biochemical markers of the myocardium, their high sensitivity and specificity and significance in the diagnosis of KD. This study aimed to determine the serum level of brain natriuretic peptide （BNP） and its relation with the heart function of children with KD and to explore its clinical value in diagnosis of ***： Forty-three KD children, aged from 5 months to 8 years （mean 2.3±0.6 years ）, were admitted to Qingdao Children＇s Hospital from February 2007 to April 2009. Among them 27 were male, and 16 female. The 43 patients served as a KD group. Patients with myocarditis, cardiomyopathy, congenital heart disease and other primary heart diseases were excluded. Thirty healthy children, aged from 3 months to 15 years （mean 2.5±0.8 years） or 17 males and 13 females served as a control group. There were no significant differences in age and gender between the two groups （P〉0.05）. In the KD group, ELISAwas used to measure the levels of serum BNP in acute and convalescent stages; and in the control group, the levels of serum BNP were measured once randomly. Left ventricular ejection fraction （LVEF）, left ventricular shorten fraction （LVSF）, cardiac index （CI） and left ventricular inflow velocity through the mitral annulus （including E-velocity and A-velocity） were measured by two- dimensional echocardiography in the acute and convalescent stages in the KD group. All data were expressed as mean±SD. The methods of analysis included Student＇s t test and the linear regression analysis test. P〈0.05 was considered statistically ***： The level of serum BNP in the acute stage （517.26±213.40） ng/ml was significantly higher than that in the convalescent stage （91.56±47.97） ng/ml in the control group （37.55±7.56） ng/ ml （P〈0.01）. The levels of LVEF, LVSF and CI in the acute stage were significantly lower than those in the convalescent sta

关键词： Natriuretic peptide brain Kawasaki disease Ejection fraction left ventricular Shorten fraction left ventricular Cardiac index E/A Correlation Children

Pretreatment red blood cell distribution width as a predictive marker for postoperative complications after laparoscopic pancreatoduodenectomy

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World Journal of Gastrointestinal Oncology 2025年第1期17卷 143-157页

作者： Xian-Rang Cao Yin-Long xu Jia-Wei Chai Kai Zheng jun-Jie Kong jun Liu Shun-Zhen Zheng Department of Liver Transplantation and Hepatobiliary Surgery Shandong Provincial Hospital Affiliated to Shandong First Medical UniversityJinan 250021Shandong ProvinceChina Department of Breast and Thyroid Surgery Shandong Provincial Maternal and Child Health Care HospitalJinan 250014Shandong ProvinceChina

BACKGROUND Red blood cell distribution width(RDW)is associated with the development and progression of various *** To explore the association between pretreatment RDW and short-term outcomes after laparoscopic pancreatoduodenectomy(LPD).METHODS A total of 804 consecutive patients who underwent LPD at our hospital between March 2017 and November 2021 were retrospectively *** between pretreatment RDW and clinicopathological characteristics and short-term outcomes were *** Patients with higher pretreatment RDW were older,had higher Eastern Cooperative Oncology Group scores and were associated with poorer short-term outcomes than those with normal *** pretreatment RDW was an independent risk factor for postoperative complications(POCs)(hazard ratio=2.973,95%confidence interval:2.032-4.350,Pying patients who were at high risk of developing POCs after LPD.

关键词： Biomarker Laparoscopic pancreatoduodenectomy Postoperative complication Red blood cell distribution width Short-term outcomes

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马拉硫磷水生生物基准推导研究

生态与农村环境学报 2018年第8期34卷 733-738页

作者：赵然然周军英续卫利南京信息工程大学江苏省大气环境与装备技术协同创新中心江苏南京210044 环境保护部南京环境科学研究所江苏南京210042

通过开展毒性试验和查阅国内外相关文献,获取马拉硫磷对长江三角洲流域22个代表性物种毒性数据,采用物种敏感度分布法和毒性百分数排序法推导长江三角洲流域马拉硫磷水生生物基准值。结果显示,采用物种敏感度分布法得出的急性基准值和... 详细信息

通过开展毒性试验和查阅国内外相关文献,获取马拉硫磷对长江三角洲流域22个代表性物种毒性数据,采用物种敏感度分布法和毒性百分数排序法推导长江三角洲流域马拉硫磷水生生物基准值。结果显示,采用物种敏感度分布法得出的急性基准值和慢性基准值分别为0.865 5和0.036 2μg·L^(-1),采用毒性百分数排序法得出的急性基准值和慢性基准值分别为0.400 0和0.033 4μg·L^(-1)。为充分保护水生生物,建议以毒性百分数排序法推导出的基准值作为长江三角洲流域马拉硫磷水生生物基准推荐值。研究结果可为我国地表水环境质量标准修订及水生生态风险评估提供科学依据。

关键词：马拉硫磷水生生物基准长江三角洲流域