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纳米材料在土壤污染修复中的应用研究进展

河南化工 2018年第12期35卷 3-8页

作者：袁琳刘秀伟黄蓓罗迎娣刘毅谷利敏刘蕊河南省化工研究所有限责任公司河南郑州450052

分析了当前城市化发展过程中土壤的污染情况,对应用于污染土壤修复的纳米材料进行了介绍。并总结了其在重金属、有机物污染土壤修复中的应用研究进展情况,指出了其发展方向。

关键词：纳米材料土壤污染重金属有机污染物

Polydopamine modified Au/FAU catalytic membrane for CO preferential oxidation

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Chinese Journal of Chemical Engineering 2019年第10期27卷 2560-2565页

作者： Li Peng limin Wang Feng Zhu Jinyun Liu Wenfu Yan Xuehong gu State Key Laboratory of Materials-Oriented Chemical Engineering College of Chemical EngineeringNanjing Tech University5 Xinmofan RoadNanjing 210009China State Key Laboratory of Inorganic Synthesis and Preparative Chemistry College of ChemistryJilin UniversityChangchun 130012China

A hollow-fiber-supported stable Au/FAU catalytic membrane was successfully synthesized through a polydopamine coating modification-removal strategy and used as a flow-through catalytic membrane reactor for preferential oxidation of *** Au nanoparticles can be efficiently isolated by dopamine and the dopamine-derived carbon *** interactions between Au nanoparticles and zeolite layer support are enhanced during annealing at high temperature under an inert atmosphere.A zeolite membrane supported Au nanoparticle catalyst was obtained after the removal of carbon shells,which showed high catalytic activity and stability for the removal of CO from hydrogen.

关键词： Zeolite membrane CO oxidation Gold catalyst Surface modification

Recombinant chitinase-3-like protein 1 alleviates learning and memory impairments via M2 microglia polarization in postoperative cognitive dysfunction mice

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Neural Regeneration Research 2025年第9期20卷 2727-2736页

作者： Yujia Liu Xue Han Yan Su Yiming Zhou Minhui Xu Jiyan Xu Zhengliang Ma Xiaoping gu Tianjiao Xia Department of Anesthesiology Nanjing Drum Tower HospitalAffiliated Hospital of Medical SchoolNanjing UniversityNanjingJiangsu ProvinceChina Medical School Nanjing UniversityNanjingJiangsu ProvinceChina Jiangsu Key Laboratory of Molecular Medicine Nanjing UniversityNanjingJiangsu ProvinceChina State Key Laboratory of Pharmaceutical Biotechnology Nanjing UniversityNanjingJiangsu ProvinceChina Department of Anesthesiology Zhongshan HospitalFudan UniversityShanghaiChina

Postoperative cognitive dysfunction is a seve re complication of the central nervous system that occurs after anesthesia and surgery,and has received attention for its high incidence and effect on the quality of life of *** date,there are no viable treatment options for postoperative cognitive *** identification of postoperative cognitive dysfunction hub genes could provide new research directions and therapeutic targets for future *** identify the signaling mechanisms contributing to postoperative cognitive dysfunction,we first conducted Gene Ontology and Kyoto Encyclopedia of Genes and Genomes pathway enrichment analyses of the Gene Expression Omnibus GSE95426 dataset,which consists of mRNAs and long non-coding RNAs differentially expressed in mouse hippocampus3 days after tibial *** dataset was enriched in genes associated with the biological process"regulation of immune cells,"of which Chill was identified as a hub ***,we investigated the contribution of chitinase-3-like protein 1 protein expression changes to postoperative cognitive dysfunction in the mouse model of tibial fractu re *** were intraperitoneally injected with vehicle or recombinant chitinase-3-like protein 124 hours post-surgery,and the injection groups were compared with untreated control mice for learning and memory capacities using the Y-maze and fear conditioning *** addition,protein expression levels of proinflammatory factors(interleukin-1βand inducible nitric oxide synthase),M2-type macrophage markers(CD206 and arginase-1),and cognition-related proteins(brain-derived neurotropic factor and phosphorylated NMDA receptor subunit NR2B)were measured in hippocampus by western *** with recombinant chitinase-3-like protein 1 prevented surgery-induced cognitive impairment,downregulated interleukin-1βand nducible nitric oxide synthase expression,and upregulated CD206,arginase-1,pNR2B,and brain-derived neurotropic factor expr

关键词： Chil1 hippocampus learning and memory M2 microglia neuroinflammation postoperative cognitive dysfunction(POCD) recombinant CHI3L1

Decreased levels of phosphorylated synuclein in plasma are correlated with poststroke cognitive impairment

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Neural Regeneration Research 2025年第9期20卷 2598-2610页

作者： Yi Wang Yuning Li Yakun gu Wei Ma Yuying guan Mengyuan guo Qianqian Shao Xunming Ji Jia Liu Department of Clinical Laboratory Beijing Bo’ai HospitalChina Rehabilitation Research CenterCapital Medical UniversityBeijingChina Beijing Institute of Brain Disorders Laboratory of Brain DisordersMinistry of Science and TechnologyCollaborative Innovation Center for Brain DisordersBeijing Advanced Innovation Center for Big Data-based Precision MedicineCapital Medical UniversityBeijingChina Department of Neurosurgery Xuanwu HospitalCapital Medical UniversityBeijingChina

Poststro ke cognitive impairment is a major secondary effect of ischemic stroke in many patients;however,few options are available for the early diagnosis and treatment of this *** aims of this study were to(1)determine the specific relationship between hypoxic andα-synuclein during the occur of poststroke cognitive impairment and(2)assess whether the serum phosphorylatedα-synuclein level can be used as a biomarker for poststro ke cognitive *** found that the phosphorylatedα-synuclein level was significantly increased and showed pathological aggregation around the cerebral infa rct area in a mouse model of ischemic *** addition,neuronalα-synuclein phosphorylation and aggregation were observed in the brain tissue of mice subjected to chronic hypoxia,suggesting that hypoxia is the underlying cause ofα-synuclein-mediated pathology in the brains of mice with ischemic *** phosphorylatedα-synuclein levels in patients with ischemic stroke were significantly lower than those in healt hy subjects,and were positively correlated with cognition levels in patients with ischemic ***,a decrease in serum high-density lipoprotein levels in stroke patie nts was significantly correlated with a decrease in phosphorylatedα-synuclein *** ischemic stroke mice did not show significant cognitive impairment or disrupted lipid metabolism 14 days after injury,some of them exhibited decreased cognitive function and reduced phosphorylatedα-synuclein *** together,our results suggest that serum phosphorylatedα-synuclein is a potential biomarker for poststroke cognitive impairment.

关键词： biomarker high-density lipoprotein ischemic stroke phosphorylatedα-synuclein poststroke cognitive impairment

室内培养条件下多元素长效颗粒碳铵与尿素氮素释放规律比较研究

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中国农学通报 2019年第20期35卷 59-64页

作者：汪敬恒谢迎新杨素芬刘蕊谷利敏李恒武盼盼河南省化工研究所有限责任公司郑州450052 郑州大学化工与能源学院郑州450001 河南工业大学化学化工与环境学院郑州450001 河南农业大学农学院郑州450000 河南省中国科学院科技成果转移转化中心郑州450047

通过对多元素长效碳铵颗粒肥和尿素在水溶液和土壤中铵态氮、硝态氮及酰胺态氮积累量比较研究发现:在相同温度下,随着培养时间的增加,两种肥料在水溶液中铵态氮、硝态氮及酰胺态氮3种形态氮素均呈线性增加趋势,且本试验研制的多元素长... 详细信息

通过对多元素长效碳铵颗粒肥和尿素在水溶液和土壤中铵态氮、硝态氮及酰胺态氮积累量比较研究发现:在相同温度下,随着培养时间的增加,两种肥料在水溶液中铵态氮、硝态氮及酰胺态氮3种形态氮素均呈线性增加趋势,且本试验研制的多元素长效碳铵颗粒肥的铵态氮积累量较尿素的积累量低,在一定程度上可起到缓释效果。此外,通过对两种肥料施入土壤进行恒温培养淋洗试验结果表明,随着培养时间的延长,多元素长效碳铵颗粒肥和尿素在土壤中的铵态氮、硝态氮及酰胺态氮3种形态氮素淋出积累速率均不断降低,而淋出积累量则不断增加,且在培养期间,多元素长效碳铵颗粒肥的无机氮淋出积累速率和淋出积累量始终低于普通尿素,这说明多元素长效碳铵颗粒肥在施入土壤后,无机氮素释放速率相对较低,这样可以延长肥效时间,达到肥料氮素缓释的效果。

关键词：多元素长效碳铵颗粒肥尿素氮素释放特征

Multilevel analysis of the central-peripheral-target organ pathway:contributing to recovery after peripheral nerve injury

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Neural Regeneration Research 2025年第10期20卷 2807-2822页

作者： Xizi Song Ruixin Li Xiaolei Chu Qi Li Ruihua Li Qingwen Li Kai-Yu Tong Xiaosong gu Dong Ming Academy of Medical Engineering and Translational Medicine Tianjin UniversityTianjinChina Haihe Laboratory of Brain-Machine Interface and Human-Machine Fusion TianjinChina Department of Rehabilitation Tianjin University Tianjin HospitalTianjinChina Department of Hand Microsurgery Tianjin University Tianjin HospitalTianjinChina School of Exercise and Health Tianjin University of SportTianjinChina Department of Biomedical Engineering the Chinese University of Hong KongHong Kong Special Administrative RegionChina

Peripheral nerve injury is a common neurological condition that often leads to severe functional limitations and *** on the pathogenesis of peripheral nerve injury has focused on pathological changes at individual injury sites,neglecting multilevel pathological analysis of the overall nervous system and target *** has led to restrictions on current therapeutic *** this paper,we first summarize the potential mechanisms of peripheral nerve injury from a holistic perspective,covering the central nervous system,peripheral nervous system,and target *** peripheral nerve injury,the cortical plasticity of the brain is altered due to damage to and regeneration of peripheral nerves;changes such as neuronal apoptosis and axonal demyelination occur in the spinal *** nerve will undergo axonal regeneration,activation of Schwann cells,inflammatory response,and vascular system regeneration at the injury *** damage to target organs can occur,including skeletal muscle atrophy and sensory receptor *** then provide a brief review of the research advances in therapeutic approaches to peripheral nerve *** main current treatments are conducted passively and include physical factor rehabilitation,pharmacological treatments,cell-based therapies,and physical ***,most treatments only partially address the problem and cannot complete the systematic recovery of the entire central nervous system-peripheral nervous system-target organ ***,we should further explore multilevel treatment options that produce effective,long-lasting results,perhaps requiring a combination of passive(traditional)and active(novel)treatment methods to stimulate rehabilitation at the central-peripheral-target organ levels to achieve better functional recovery.

关键词： central nervous system central peripheral target organ multilevel pathological analysis nerve regeneration peripheral nerve injury peripheral nervous system target organs therapeutic approach

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改性热塑性聚氨酯耐热性提高的研究

陕西科技大学学报（自然科学版） 2013年第6期31卷 95-98,104页

作者：张敏张若琳张宝峰顾利民邱建辉陕西科技大学教育部轻化工助剂化学与技术重点实验室陕西西安710021 中国石油规划总院北京100083 日本秋田县立大学

为了提高热塑性聚氨酯弹性体(TPU)的耐热性,采用三聚氰胺改性脲醛树脂包覆纳米TiO2(MUF/TiO2),并将其加入TPU中制成复合材料MUF/TiO2-TPU.采用FT-IR、WXRD、SEM、DSC、TGA等分别表征了复合材料的化学结构,并测定了其结晶度、热性能和力... 详细信息

为了提高热塑性聚氨酯弹性体(TPU)的耐热性,采用三聚氰胺改性脲醛树脂包覆纳米TiO2(MUF/TiO2),并将其加入TPU中制成复合材料MUF/TiO2-TPU.采用FT-IR、WXRD、SEM、DSC、TGA等分别表征了复合材料的化学结构,并测定了其结晶度、热性能和力学性能.研究结果表明:MUF/TiO2的添加,TPU的结晶形态没有大的变化,但晶粒尺寸略有变小;耐热性得到了很大地提高;改性后的TPU断裂伸长率和拉伸强度呈现先增大后减少的趋势.

关键词： TPU 三聚氰胺改性脲醛树脂 TiO2 耐热性

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PVC手套用水性聚氨酯涂饰剂

聚氨酯工业 2007年第2期22卷 5-7页

作者：刘方方黄文杰顾丽敏张浩张向彬河北科技大学化学与制药工程学院石家庄050018

简述了国内PVC手套用水性聚氨酯(WPU)涂饰剂的现状,重点从原料的选择、紫外光屏蔽剂和偶联剂等几方面讨论了自制PVC手套用芳香族异氰酸酯WPU涂饰剂的特点。采用芳香族异氰酸酯为原料,通过加入紫外光屏蔽剂和偶联剂,克服了芳香族异氰酸酯... 详细信息

简述了国内PVC手套用水性聚氨酯(WPU)涂饰剂的现状,重点从原料的选择、紫外光屏蔽剂和偶联剂等几方面讨论了自制PVC手套用芳香族异氰酸酯WPU涂饰剂的特点。采用芳香族异氰酸酯为原料,通过加入紫外光屏蔽剂和偶联剂,克服了芳香族异氰酸酯WPU涂饰剂耐黄变性能差的缺点,改善了涂饰剂与PVC基材的粘接性能,降低了生产成本,提高了产品的市场竞争力,可满足国内市场的需要。

关键词：芳香族异氰酸酯水性聚氨酯 PVC手套涂饰剂

Structural effects of three-dimensional angle-interlock woven composite undergoing bending cyclic loading

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Science China(Physics,Mechanics & Astronomy) 2014年第3期57卷 501-511页

作者： JIN limin YAO Yao YU YiMin ROTICH Gideon SUN BaoZhong gu BoHong College of Textiles Key Laboratory of High-performance Fibers & ProductsMinistry of EducationDonghua University

This paper reports the structural effects of three-dimensional(3-D)angle-interlock woven composite(3DAWC)undergoing three-point bending cyclic loading from experimental and finite element analysis(FEA)*** experiment,the fatigue tests were conducted to measure the bending deflection and to observe the damage *** the FEA approach,a micro-structural unit-cell model of the 3DAWC was established at the yarn level to simulate the fatigue *** stress degradation at the loading condition of constant deformation amplitude was calculated to show the degradation of mechanical *** addition,the stress distribution,fatigue damage evolution and critical damage regions were also obtained to qualitatively reveal the structural effects and damage mechanisms of the 3DAWC subjected to three-point bending cyclic loading.

关键词： three-dimensional angle-interlock woven composite (3DAWC) three-point bending fatigue microstructure model fi-nite element analysis (FEA)