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Immobilization of NiS nanoparticles on N-doped carbon fiber aerogels as advanced electrode materials for supercapacitors

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Nano Research 2016年第9期9卷 2747-2759页

作者： Youfang Zhang lizeng zuo Longsheng Zhang Jiajie Yan Hengyi Lu Wei Fan Tianxi Liu State Key Laboratory of Molecular Engineering of Polymers Department of Macromolecular ScienceFudan University220 Handan RoadShanghai 200433China State Key Laboratory for Modification of Chemical Fibers and Polymer Materials College of Materials Science and EngineeringDonghua University2999 North Renmin RoadShanghai 201620China

NiS nanoparticles (NPs) with excellent electrochemical capacitance have attracted considerable attention as cost-effective energy-storage materials for supercapacitors in recent years. Preventing the aggregation and increasing the conductivity of NiS NPs are key to fully realizing their excellent electrochemical properties. In this work, NiS/N-doped carbon fiber aerogel (N-CFA) nanocomposites were obtained easily through the combination of polymerization, carbonization, and a one-step solvothermal reaction. N-CFA derived from polydopamine (PDA)-coated cotton wool was used as a template for the construction of hierarchical NiS/N-CFA nanocomposites, in which NiS NPs are uniformly immobilized on the surface of N-CFA. In this nanostructured system, N-CFA containing abundant nanofibers not only provides active regions for the growth of NiS NPs to prevent their aggregation, but also offers short pathways for the transport of electrons and ions. The electrochemical properties of the obtained NiS/N-CFA nanocomposites were investigated by cyclic voltammetry, galvanostatic charge–discharge, and alternating current impedance measurements. The optimized NiS/N-CFA nanocomposite exhibits a high specific capacitance of 1,612.5 F·g1at a charge/discharge current density of 1 A·g1and excellent rate capacitance retention of 66.7% at 20 A·g1. The excellent electrochemical properties of NiS/N-CFA nanocomposites make these materials promising electrode materials for supercapacitors. [Figure not available: see fulltext.] © 2016, Tsinghua University Press and Springer-Verlag Berlin Heidelberg.

关键词： NiS cotton wool carbon fiber aerogels N-doping supercapacitors

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常压低温等离子体处理工艺对聚丙烯表面性能影响

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工程塑料应用 2021年第11期49卷 84-88页

作者：孙刚左立增上海金发科技发展有限公司上海工程塑料功能化工程技术中心上海201714

以共聚聚丙烯(PP)为原料注塑制备样板,通过常压低温等离子体表面处理仪对PP样板表面进行处理,分别采用红外成像仪、光学显微镜、电晕笔、接触角测试仪表征了等离子体的温度、PP样板的表面形貌、表面润湿张力以及接触角。研究了等离子体... 详细信息

以共聚聚丙烯(PP)为原料注塑制备样板,通过常压低温等离子体表面处理仪对PP样板表面进行处理,分别采用红外成像仪、光学显微镜、电晕笔、接触角测试仪表征了等离子体的温度、PP样板的表面形貌、表面润湿张力以及接触角。研究了等离子体处理工艺对等离子体温度、PP样板表面形貌、润湿张力以及接触角的影响。研究表明,输入气压越低、工作距离越近,等离子体温度越高;等离子体处理后PP样板表面颗粒感增强,粗糙度增加;可以通过调节工作距离、输入气压以及扫描速度调节PP样板表面润湿张力;PP样板接触角是样板表面润湿张力和粗糙度的综合体现,润湿张力越大、粗糙度越高,则接触角越小。

关键词：常压低温等离子体处理工艺聚丙烯润湿张力粗糙度接触角

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车用聚丙烯复合材料结晶行为研究

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上海塑料 2020年第2期48卷 36-41页

作者：左立增张引龙孙刚上海金发科技发展有限公司上海201714 上海工程塑料功能化工程技术中心上海201714

以聚丙烯为基体,滑石粉、乙烯/辛烯共聚物为添加成分,制备了聚丙烯复合材料。采用广角X射线衍射表征了复合材料注塑样板皮层和芯层,以及注塑样板不同区域表层的结晶行为。结果表明:聚丙烯复合材料注塑样板皮层具有显著的b轴结晶取向趋势... 详细信息

以聚丙烯为基体,滑石粉、乙烯/辛烯共聚物为添加成分,制备了聚丙烯复合材料。采用广角X射线衍射表征了复合材料注塑样板皮层和芯层,以及注塑样板不同区域表层的结晶行为。结果表明:聚丙烯复合材料注塑样板皮层具有显著的b轴结晶取向趋势;复合材料注塑样板芯层的b轴结晶取向趋势较弱;注塑样板正中位置表层b轴结晶取向趋势最明显。

关键词：聚丙烯广角X射线衍射皮层芯层结晶取向

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表面无损等离子体处理聚丙烯粘结强度产生机理分析

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工程塑料应用 2022年第1期50卷 116-121页

作者：李国明唐颂超左立增孙刚陈延安上海金发科技发展有限公司上海201714 华东理工大学材料科学与工程学院上海200237 上海工程塑料功能化工程技术中心上海201714

以空气为等离子体反应气体对聚丙烯(PP)样板表面进行常压低温等离子体处理,分别采用光学显微镜、电晕笔、傅里叶变换红外光谱分析表征了处理后PP样板的表面形貌、表面润湿张力以及表面基团类型。将处理后PP样板与聚氨酯粘合剂以及聚氯乙... 详细信息

以空气为等离子体反应气体对聚丙烯(PP)样板表面进行常压低温等离子体处理,分别采用光学显微镜、电晕笔、傅里叶变换红外光谱分析表征了处理后PP样板的表面形貌、表面润湿张力以及表面基团类型。将处理后PP样板与聚氨酯粘合剂以及聚氯乙烯(PVC)皮革复合制得PP/PVC复合板,测试了三者之间的粘结强度,并对粘结强度产生的机理进行了分析。研究表明,通过调整等离子体处理工艺,可以获得表面形貌无损的PP样板;表面无损PP样板的表面润湿张力相较于未处理样板仅由28 mN/m提高至31 mN/m,但粘结强度由40 N/m提升至809 N/m;表面无损PP样板表面的酰胺基团与粘合剂中的异氰酸根之间的化学键作用是粘结强度产生的根本原因;增加表面无损PP样板可与粘合剂反应的表面基团含量,能有效提升表面无损PP材料与粘合剂之间的粘结强度。

关键词：表面无损常压低温等离子体聚丙烯润湿张力化学键作用粘结强度

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汽车聚丙烯风道支架材料弯曲性能研究

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上海塑料 2022年第5期50卷 65-69页

作者：张涵赵鹏伟左立增上海金发科技发展有限公司上海200062

以汽车风道支架常用的20%(质量分数,下同)滑石粉填充聚丙烯(PP)材料、20%短玻纤增强PP材料、5%长玻纤增强PP材料和20%长玻纤增强PP材料为研究对象,通过扫描电子显微镜对材料中滑石粉和玻纤的取向性进行了观察,并对其注塑样板中流动方向... 详细信息

以汽车风道支架常用的20%(质量分数,下同)滑石粉填充聚丙烯(PP)材料、20%短玻纤增强PP材料、5%长玻纤增强PP材料和20%长玻纤增强PP材料为研究对象,通过扫描电子显微镜对材料中滑石粉和玻纤的取向性进行了观察,并对其注塑样板中流动方向和垂直流动方向的弯曲模量进行测试。结果表明:滑石粉、玻纤在PP基体中均具有明显的取向性,且玻纤长度越短取向性越强。玻纤增强PP材料流动方向的弯曲模量保留率明显高于滑石粉填充PP材料,且玻纤长度越长、含量越高,其弯曲模量保留率越高;玻纤长度越短,材料垂直流动方向的弯曲模量越低。滑石粉填充PP材料流动与垂直流动方向的弯曲模量差异性较小,玻纤增强PP材料长径比越大、含量越少,材料流动与垂直流动方向的弯曲模量差异越小。

关键词：聚丙烯风道支架滑石粉玻纤弯曲模量

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色粉对聚丙烯复合材料激光打标的影响

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工程塑料应用 2021年第1期49卷 70-74页

作者：左立增陈延安陈桂吉卢先博赵鹏伟上海金发科技发展有限公司上海工程塑料功能化工程技术中心上海201714

为研究配色聚丙烯(PP)复合材料中色粉对激光打标效果的影响,以PP为基体,云母、抗氧剂等为添加成分,以酞青蓝、酞青绿、炭黑和钛白粉为色粉成分,通过熔融共混、注塑成型制备了PP复合材料样板。通过激光打标制备了复合材料标记板,采用色... 详细信息

为研究配色聚丙烯(PP)复合材料中色粉对激光打标效果的影响,以PP为基体,云母、抗氧剂等为添加成分,以酞青蓝、酞青绿、炭黑和钛白粉为色粉成分,通过熔融共混、注塑成型制备了PP复合材料样板。通过激光打标制备了复合材料标记板,采用色差仪评价了标记板激光打标前后明暗度的变化和打标前后色差的变化。研究了酞青蓝、酞青绿、炭黑和钛白粉含量对激光打标效果的影响。结果表明,酞青蓝、酞青绿和钛白粉均对激光打标具有两面性,少量添加可减弱激光打标效果,含量提高后可通过自身颜色与样板颜色的差异减弱对激光打标效果的影响;炭黑含量越高,打标效果越差。

关键词：聚丙烯激光打标色粉酞青蓝酞青绿钛白粉炭黑

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Neuroprotective potential for mitigating ischemia-reperfusion-induced damage

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Neural Regeneration Research 2025年第8期20卷 2199-2217页

作者： Zi Ye Runqing Liu Hangxing Wang Aizhen zuo Cen Jin Nan Wang Huiqi Sun Luqian Feng Hua Yang The Clinical Medical College Guizhou Medical UniversityGuiyangGuizhou ProvinceChina Division of Infectious Diseases Department of Internal MedicinePeking Union Medical College HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingChina School of Medical Imaging Guizhou Medical UniversityGuiyangGuizhou ProvinceChina Division of Gastroenterology First Affiliated Hospital of Zhengzhou UniversityZhengzhouHenan ProvinceChina The Second Clinical Medical College Lanzhou UniversityLanzhouGansu ProvinceChina Department of Neurosurgery Affiliated Hospital of Guizhou Medical UniversityGuiyangGuizhou ProvinceChina

Reperfusion following cerebral ischemia causes both structural and functional damage to brain tissue and could aggravate a patient's condition;this phenomenon is known as cerebral ischemia-reperfusion *** studies have elucidated the neuroprotective role of the sirtuin protein family(Sirtuins)in modulating cerebral ischemia-reperfusion ***,the potential of utilizing it as a novel intervention target to influence the prognosis of cerebral ischemia-reperfusion injury requires additional *** this review,the origin and research progress of Sirtuins are summarized,suggesting the involvement of Sirtuins in diverse mechanisms that affect cerebral ischemia-reperfusion injury,including inflammation,oxidative stress,blood-brain barrier damage,apoptosis,pyroptosis,and *** therapeutic avenues related to Sirtuins that may improve the prognosis of cerebral ischemia-reperfusion injury were also investigated by modulating Sirtuins expression and affecting representative pathways,such as nuclear factor-kappa B signaling,oxidative stress mediated by adenosine monophosphate-activated protein kinase,and the forkhead box *** review also summarizes the potential of endogenous substances,such as RNA and hormones,drugs,dietary supplements,and emerging therapies that regulate Sirtuins *** review also reveals that regulating Sirtuins mitigates cerebral ischemia-reperfusion injury when combined with other risk *** Sirtuins show promise as a potential target for the treatment of cerebral ischemiareperfusion injury,most recent studies are based on rodent models with circadian rhythms that are distinct from those of humans,potentially influencing the efficacy of Sirtuinstargeting drug ***,this review provides new insights into the role of Sirtuins in the pathology and treatment of cerebral ischemia-reperfusion injury.

关键词： apoptosis autophagy blood-brain barrier dietary supplements drug hormones inflammation neuroprotection oxidative stress prognosis pyroptosis reperfusion injury risk factors RNA therapeutics

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An Unprecedented Efficiency with Approaching 21%Enabled by Additive‑Assisted Layer‑by‑Layer Processing in Organic Solar Cells

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Nano-Micro Letters 2025年第2期17卷 372-375页

作者： Shuai Xu Youdi Zhang Yanna Sun Pei Cheng Zhaoyang Yao Ning Li Long Ye Lijian zuo Ke Gao Key Laboratory of Advanced Green Functional Materials College of ChemistryChangchun Normal UniversityChangchun 130032People’s Republic of China Shandong Provincial Key Laboratory for Science of Material Creation and Energy Conversion School of Chemistry and Chemical EngineeringShandong UniversityQingdao 266237People’s Republic of China College of Polymer Science and Engineering Sichuan UniversityChengdu 610065People’s Republic of China State Key Laboratory and Institute of Elemento‑Organic Chemistry Centre of Nanoscale Science and Technology and Key Laboratory of Functional Polymer MaterialsRenewable Energy Conversion and Storage Center(RECAST)College of ChemistryNankai UniversityTianjin 300071People’s Republic of China Institute of Polymer Optoelectronic Materials and Devices State Key Laboratory of Luminescent Materials and Devices South China University of TechnologyGuangzhou 510640People’s Republic of China Tianjin Key Laboratory of Molecular Optoelectronic Sciences School of Materials Science and EngineeringTianjin UniversityTianjin 300350People’s Republic of China State Key Laboratory of Silicon Materials MOE Key Laboratory of Macromolecular Synthesis and FunctionalizationDepartment of Polymer Science and EngineeringZhejiang UniversityHangzhou 310027People’s Republic of China

Recently published in Joule,Feng Liu and colleagues from Shanghai Jiaotong University reported a record-breaking 20.8%power conversion efficiency in organic solar cells(OSCs)with an interpenetrating fibril network active layer morphology,featuring a bulk p-in structure and proper vertical segregation achieved through additive-assisted layer-by-layer *** optimized hierarchical gradient fibrillar morphology and optical management synergistically facilitates exciton diffusion,reduces recombination losses,and enhances light capture *** approach not only offers a solution to achieving high-efficiency devices but also demonstrates the potential for commercial applications of OSCs.

关键词： Organic solar cells Additive-assisted layer-by-layer processing Three-dimensional fibril morphology Bulk p-i-n structure Optical management

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AAV mediated carboxyl terminus of Hsp70 interacting protein overexpression mitigates the cognitive and pathological phenotypes of APP/PS1 mice

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Neural Regeneration Research 2025年第1期20卷 253-264页

作者： Zhengwei Hu Jing Yang Shuo Zhang Mengjie Li Chunyan zuo Chengyuan Mao Zhongxian Zhang Mibo Tang Changhe Shi Yuming Xu Department of Neurology The First Affiliated Hospital of Zhengzhou UniversityZhengzhou UniversityZhengzhouHenan ProvinceChina Academy of Medical Sciences of Zhengzhou University ZhengzhouHenan ProvinceChina NHC Key Laboratory of Prevention and treatment of Cerebrovascular Diseases The First Affiliated Hospital of Zhengzhou UniversityZhengzhou UniversityZhengzhouHenan ProvinceChina Henan Key Laboratory of Cerebrovascular Diseases The First Affiliated Hospital of Zhengzhou UniversityZhengzhou UniversityZhengzhouHenan ProvinceChina Institute of Neuroscience Zhengzhou UniversityZhengzhouHenan ProvinceChina Sino-British Research Centre for Molecular Oncology National Centre for International Research in Cell and Gene TherapySchool of Basic Medical SciencesAcademy of Medical SciencesZhengzhou UniversityZhengzhouHenan ProvinceChina Department of Gerontology The First Affiliated Hospital of Zhengzhou UniversityZhengzhou UniversityZhengzhouHenan ProvinceChina

The E3 ubiquitin ligase,carboxyl terminus of heat shock protein 70(Hsp70)interacting protein(CHIP),also functions as a co-chaperone and plays a crucial role in the protein quality control *** this study,we aimed to investigate the neuroprotective effect of overexpressed CHIP on Alzheimer’s *** used an adeno-associated virus vector that can cross the blood-brain barrier to mediate CHIP overexpression in APP/PS1 mouse *** overexpression significantly ameliorated the performance of APP/PS1 mice in the Morris water maze and nest building tests,reduced amyloid-βplaques,and decreased the expression of both amyloid-βand phosphorylated *** also alleviated the concentration of microglia and astrocytes around *** APP/PS1 mice of a younger age,CHIP overexpression promoted an increase in ADAM10 expression and inhibitedβ-site APP cleaving enzyme 1,insulin degrading enzyme,and neprilysin *** of HSP70 and HSP40,which have functional relevance to CHIP,were also *** nuclei transcriptome sequencing in the hippocampus of CHIP overexpressed mice showed that the lysosomal pathway and oligodendrocyte-related biological processes were up-regulated,which may also reflect a potential mechanism for the neuroprotective effect of *** research shows that CHIP effectively reduces the behavior and pathological manifestations of APP/PS1 ***,overexpression of CHIP could be a beneficial approach for the treatment of Alzheimer’s disease.

关键词： adeno-associated virus Alzheimer’s disease APP/PS1 mice carboxyl terminus of Hsp70 interacting protein gene therapy

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Recent progress in the applications of presynaptic dopaminergic positron emission tomography imaging in parkinsonism

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Neural Regeneration Research 2025年第1期20卷 93-106页

作者： Yujie Yang Xinyi Li Jiaying Lu Jingjie Ge Mingjia Chen Ruixin Yao Mei Tian Jian Wang Fengtao Liu Chuantao zuo Key Laboratory of Arrhythmias Ministry of EducationDepartment of Medical GeneticsShanghai East HospitalSchool of MedicineTongji UniversityShanghaiChina Department of Neurology National Research Center for Aging and MedicineNational Center for Neurological Disordersand State Key Laboratory of Medical NeurobiologyHuashan HospitalFudan UniversityShanghaiChina Department of Nuclear Medicine&PET Center National Center for Neurological Disordersand National Clinical Research Center for Aging and MedicineHuashan HospitalFudan UniversityShanghaiChina International Human Phenome Institutes(Shanghai) ShanghaiChina Human Phenome Institute Fudan UniversityShanghaiChina

Nowadays,presynaptic dopaminergic positron emission tomography,which assesses deficiencies in dopamine synthesis,storage,and transport,is widely utilized for early diagnosis and differential diagnosis of *** review provides a comprehensive summary of the latest developments in the application of presynaptic dopaminergic positron emission tomography imaging in disorders that manifest *** conducted a thorough literature search using reputable databases such as PubMed and Web of *** criteria involved identifying peer-reviewed articles published within the last 5 years,with emphasis on their relevance to clinical *** findings from these studies highlight that presynaptic dopaminergic positron emission tomography has demonstrated potential not only in diagnosing and differentiating various Parkinsonian conditions but also in assessing disease severity and predicting ***,when employed in conjunction with other imaging modalities and advanced analytical methods,presynaptic dopaminergic positron emission tomography has been validated as a reliable in vivo *** validation extends to screening and exploring potential neuropathological mechanisms associated with dopaminergic *** summary,the insights gained from interpreting these studies are crucial for enhancing the effectiveness of preclinical investigations and clinical trials,ultimately advancing toward the goals of neuroregeneration in parkinsonian disorders.

关键词： aromatic amino acid decarboxylase brain imaging dopamine transporter Parkinson’s disease parkinsonism positron emission tomography presynaptic dopaminergic function vesicle monoamine transporter type 2

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